How could you increase the pressure the block exerts on the table?

How could you increase the pressure the block exerts on the table?
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The atmosphere exerts enormous pressure on us. But we do not feel it because (a) we are used to it (b) our bones are very strong and can withstand this pressure (c) the surface area of our head is very small (d) our blood exerts a pressure slightly more than that of the atmosphere

Description : The atmosphere exerts enormous pressure on us. But we do not feel it because (a) we are used to it (b) our bones are very strong and can withstand this pressure (c) the surface area of our head is very small (d) our blood exerts a pressure slightly more than that of the atmosphere

Last Answer : Ans:(d)

It is easy to burst a gas-filled balloon with a needle than with a nail. It is because – (1) nail is more longer than needle. (2) nail exerts more pressure than needle on the balloon. (3) needle exerts more pressure than nail on the balloon. (4) gas is reactive with the needle.

Description : It is easy to burst a gas-filled balloon with a needle than with a nail. It is because – (1) nail is more longer than needle. (2) nail exerts more pressure than needle on the balloon. (3) needle exerts more pressure than nail on the balloon. (4) gas is reactive with the needle.

Last Answer : (3) needle exerts more pressure than nail on the balloon. Explanation: It is easy to burst a gas-filled balloon with a needle than with a nail because the needle applies more pressure than nail. Besides, ... tip of the needle, so only a little force gives a lot of pressure (pressure = force/area).

Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature. (A) Less than (B) More than (C) Equal to (D) Either (A) or (B); depends on the solid

Description : Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature. (A) Less than (B) More than (C) Equal to (D) Either (A) or (B); depends on the solid

Last Answer : (A) Less than

Give reason: Steam exerts great pressure on the walls of the piston during expansion stroke.

Description : Give reason: Steam exerts great pressure on the walls of the piston during expansion stroke.

Last Answer : As steam occupies much larger volume than the same amount of water, it exerts great pressure on the walls of the piston.

Back fill with a sloping surface exerts a total active pressure Pa on the wall of height H and acts at (A) H/4 above the base parallel to base (B) H/2 above the base parallel to base (C) H/3 above the base parallel to base (D) H/5 above the base parallel to base

Description : Back fill with a sloping surface exerts a total active pressure Pa on the wall of height H and acts at (A) H/4 above the base parallel to base (B) H/2 above the base parallel to base (C) H/3 above the base parallel to base (D) H/5 above the base parallel to base

Last Answer : Answer: Option C

At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is (A) 1.572 (B) 1.9398 (C) 3.389

Description : At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole ... respectively. Activity co-efficient of methanol is (A) 1.572 (B) 1.9398 (C) 3.389

Last Answer : (A) 1.572

gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its (A) Aqueous tension (B) Saturated humidity (C) Vapor pressure

Description : gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its (A) Aqueous tension (B) Saturated humidity (C) Vapor pressure

Last Answer : Option A

How gas exerts pressure on a container?

Description : How gas exerts pressure on a container?

Last Answer : Gas molecules have weak cohesive forces present between them, so these are widely separated from each other and move freely in all directions so they collide with each other and with the walls of container, in this way pressure is created.

The piston rod of a hydraulic cylinder exerts an operating force of 10kN. The allowable stress in the cylinder is 45N/mm². Calculate the thickness of the cylinder using Lame’s equation. Diameter of the cylinder is 40mm and pressure in cylinder is 10MPa. a) 2.05mm b) 4.2mm c) 5.07mm d) None of the listed

Description : The piston rod of a hydraulic cylinder exerts an operating force of 10kN. The allowable stress in the cylinder is 45N/mm². Calculate the thickness of the cylinder using Lame's equation. Diameter of the cylinder is 40mm and ... is 10MPa. a) 2.05mm b) 4.2mm c) 5.07mm d) None of the listed

Last Answer : c) 5.07mm

As a plasma expander, dextran has the following advantages except: A. It exerts oncotic pressure similar to plasma proteins B. It keeps plasma volume expanded for about 24 hours C. It is nonpyrogenic D. It does not interfere with grouping and cross matching of blood

Description : As a plasma expander, dextran has the following advantages except: A. It exerts oncotic pressure similar to plasma proteins B. It keeps plasma volume expanded for about 24 hours C. It is nonpyrogenic D. It does not interfere with grouping and cross matching of blood

Last Answer : D. It does not interfere with grouping and cross matching of blood

The temperature of a gas is held constant while its volume is reduced. The pressure the gas exerts on the walls of its container increases because its molecules: w) strike the container walls more often x) strike the container walls with higher speeds y) strike the container walls with greater force z) all of the above

Description : The temperature of a gas is held constant while its volume is reduced. The pressure the gas exerts on the walls of its container increases because its molecules: w) strike the container walls more ... walls with higher speeds y) strike the container walls with greater force z) all of the above

Last Answer : ANSWER: W -- STRIKE THE CONTAINER WALLS MORE OFTEN

It is easy to burst a gas-filled balloon with a neelde than with a nail. It is because (1) nail is more longer than needle. (2) nail exerts more pressure than needle on the balloon. (3) needle exerts more pressure than nail on the balloon. (4) gas is reactive with the needle.

Description : It is easy to burst a gas-filled balloon with a neelde than with a nail. It is because (1) nail is more longer than needle. (2) nail exerts more pressure than needle on the balloon. (3) needle exerts more pressure than nail on the balloon. (4) gas is reactive with the needle.

Last Answer : needle exerts more pressure than nail on the balloon.

How does the size of the force exerted earths gravity on a car compare with size of the force the car exerts on earth?

Description : How does the size of the force exerted earths gravity on a car compare with size of the force the car exerts on earth?

Last Answer : The magnitude of the force is exactly the same (Newton's ThirdLaw).

If the gravity exerts 15 N and there is 10 N of friction how much force will Jim need to exert to move it?

Description : If the gravity exerts 15 N and there is 10 N of friction how much force will Jim need to exert to move it?

Last Answer : Need answer

Platelet activating factor is: a. Generated by the action of phospholipase A2 on membrane phospholipids b. Antiinflammatory in most of its actions c. Synthesized by endothelial and other cells d. Exerts a variety of biologic effects which are platelet-independent

Description : Platelet activating factor is: a. Generated by the action of phospholipase A2 on membrane phospholipids b. Antiinflammatory in most of its actions c. Synthesized by endothelial and other cells d. Exerts a variety of biologic effects which are platelet-independent

Last Answer : Answer: a, c, d Like the eicosanoids, platelet-activating factor (PAF) is not stored in cells but is rapidly produced during inflammation. PAF exerts a variety of biologic effects ... and LTB4. There is considerable overlap and redundancy in the effects produced by PAF and eicosanoids

Hyoscine differs from atropine in that it (a) Exerts depressant effects on the CNS at relatively low doses (b) Exerts more potent effects on the heart than on the eye (c) Is longer acting (d) Has weaker antimotion sickness activity

Description : Hyoscine differs from atropine in that it (a) Exerts depressant effects on the CNS at relatively low doses (b) Exerts more potent effects on the heart than on the eye (c) Is longer acting (d) Has weaker antimotion sickness activity

Last Answer : Ans: A

The horse pulls the cart because of (a) The force that the horse exerts on the ground (b) The force that the horse exerts on the cart (c) The force that the ground exerts on the horse (d) The force that the cart exerts on the horse

Description : The horse pulls the cart because of (a) The force that the horse exerts on the ground (b) The force that the horse exerts on the cart (c) The force that the ground exerts on the horse (d) The force that the cart exerts on the horse

Last Answer : Ans:(c)

A balloon filled with helium rises in air because – (1) air exerts an upward force on the balloon (2) the balloon is weightless (3) helium is less dense than air (4) helium pushes down on the air below the balloon

Description : A balloon filled with helium rises in air because – (1) air exerts an upward force on the balloon (2) the balloon is weightless (3) helium is less dense than air (4) helium pushes down on the air below the balloon

Last Answer : (3) helium is less dense than air Explanation: A gas balloon is any balloon that stays aloft due to being filled with a gas less dense than air or lighter than air (such as helium ... balloons) as the dominant form of airship. as balloons remained popular throughout the age before powered flight.

Our weight, as measured by the spring weighing machine is equivalent of A. The total gravitational force that Earth exerts on us B. The total centripetal force required to keep us moving on Earth's axis C. The total gravitational force that Earth exerts on us + The total centripetal force required to keep us moving on Earth's axis D. The total gravitational force that Earth exerts on us - The total centripetal force required to keep us moving on Earth's axis

Description : Our weight, as measured by the spring weighing machine is equivalent of A. The total gravitational force that Earth exerts on us B. The total centripetal force required to keep us moving on Earth's ... Earth exerts on us - The total centripetal force required to keep us moving on Earth's axis

Last Answer : The total gravitational force that Earth exerts on us - The total centripetal force required to keep us moving on Earth's axis

Thyroid hormone: a. increases the absorption of carbohydrate from the intestine b. exerts a negative feedback action on TSH production c. increases the concentration of 2,3-DPG within the red blood cells d. all above

Description : Thyroid hormone: a. increases the absorption of carbohydrate from the intestine b. exerts a negative feedback action on TSH production c. increases the concentration of 2,3-DPG within the red blood cells d. all above

Last Answer : all above

Regarding interferon: a. it is a virus specific molecules b. it acts by neutralizing exotoxin c. it enhances the histocompatibility antigen on cell surface and thereby activate the T cells d. it exerts its effect by integrating itself with the DNA of virus infected cells

Description : Regarding interferon: a. it is a virus specific molecules b. it acts by neutralizing exotoxin c. it enhances the histocompatibility antigen on cell surface and thereby activate the T cells d. it exerts its effect by integrating itself with the DNA of virus infected cells

Last Answer : it enhances the histocompatibility antigen on cell surface and thereby activate the T cells

The ________ is a person within a reference group who, because of special skills, knowledge, personality, or other characteristics, exerts influence on others 1. facilitator 2. reference actor 3. opinion leader 4. social role player 5. none of these

Description : The ________ is a person within a reference group who, because of special skills, knowledge, personality, or other characteristics, exerts influence on others 1. facilitator 2. reference actor 3. opinion leader 4. social role player 5. none of these

Last Answer : opinion leader

Which of the following gradients exerts maximum influence on properties of steel? (A) Iron (B) Carbon (C) Manganese (D) Sulphur

Description : Which of the following gradients exerts maximum influence on properties of steel? (A) Iron (B) Carbon (C) Manganese (D) Sulphur

Last Answer : Answer: Option B

Archimedes principle states that  a. when a body is inversed in a fluid, the fluid exerts a downward force on the body whose magnitude is equal to the weight of the displaced fluid  b. when a body is inversed in a fluid, the fluid exerts a upward force on the body whose magnitude is equal to the weight of the displaced fluid.  c. when a body is inversed in a fluid, the fluid exerts a downward force on the body whose magnitude is greater than the weight of the displaced fluid.  d. when a body is inversed in a fluid, the fluid exerts a downward force on the body whose magnitude is lower than the weight of the displaced fluid.

Description : Archimedes principle states that  a. when a body is inversed in a fluid, the fluid exerts a downward force on the body whose magnitude is equal to the weight of the displaced fluid  b. ... fluid exerts a downward force on the body whose magnitude is lower than the weight of the displaced fluid.

Last Answer : when a body is inversed in a fluid, the fluid exerts a upward force on the body whose magnitude is equal to the weight of the displaced fluid.

What is true of thalidomide: A. It exerts antitumour activity in some solid malignant tumours B. It ameliorates cancer associated cachexia C. It exerts antileprotic action D. All of the above

Description : What is true of thalidomide: A. It exerts antitumour activity in some solid malignant tumours B. It ameliorates cancer associated cachexia C. It exerts antileprotic action D. All of the above

Last Answer : B. It ameliorates cancer associated cachexia

The following is true of loperamide except: A. It is absorbed from intestines and exerts centrally mediated antidiarrhoeal action B. It acts on the opioid receptors in the gut C. It increases tone and segmenting activity of the intestines D. It inhibits intestinal secretion by binding to calmodulin in the mucosal cells

Description : The following is true of loperamide except: A. It is absorbed from intestines and exerts centrally mediated antidiarrhoeal action B. It acts on the opioid receptors in the gut C. It increases ... of the intestines D. It inhibits intestinal secretion by binding to calmodulin in the mucosal cells

Last Answer : A. It is absorbed from intestines and exerts centrally mediated antidiarrhoeal action

The following is/are true of mesalazine: A. It exerts mainly local antiinflammatory action in the lower gut B. It is a broad spectrum antidiarrhoeal drug C. It can be administered as a retention enema D. Both 'A' and 'C

Description : The following is/are true of mesalazine: A. It exerts mainly local antiinflammatory action in the lower gut B. It is a broad spectrum antidiarrhoeal drug C. It can be administered as a retention enema D. Both 'A' and 'C

Last Answer : D. Both 'A' and 'C

Omeprazole exerts practically no other action except inhibition of gastric acid secretion because: A. It transforms into the active cationic forms only in the acidic pH of the gastric juice B. Its active forms have selective affinity for the H+K+ATPase located in the apical canaliculi of gastric parietal cells C. Its cationic forms are unable to diffuse out from the gastric parietal cell canaliculi D. All of the above

Description : Omeprazole exerts practically no other action except inhibition of gastric acid secretion because: A. It transforms into the active cationic forms only in the acidic pH of the gastric juice B. Its ... forms are unable to diffuse out from the gastric parietal cell canaliculi D. All of the above

Last Answer : D. All of the above

In parkinsonian patients levodopa exerts the following effects except: A. Reduces skeletal muscle contractility B. Decreases muscle tone C. Increases locomotor activity D. Inhibits muscle tremor

Description : In parkinsonian patients levodopa exerts the following effects except: A. Reduces skeletal muscle contractility B. Decreases muscle tone C. Increases locomotor activity D. Inhibits muscle tremor

Last Answer : A. Reduces skeletal muscle contractility

The following is true about actions of ethylalcohol: A. It exerts anticonvulsant action followed by lowering of seizure threshold B. It lowers pain threshold C. It increases confidence and reduces number of errors D. It increases heat production and helps to keep warm in cold weather

Description : The following is true about actions of ethylalcohol: A. It exerts anticonvulsant action followed by lowering of seizure threshold B. It lowers pain threshold C. It increases confidence and reduces number of errors D. It increases heat production and helps to keep warm in cold weather

Last Answer : A. It exerts anticonvulsant action followed by lowering of seizure threshold

The following is true of raloxifene except: A. It acts as an estrogen agonist in bone B. It exerts estrogen antagonistic action on endometrium C. It increases risk of developing breast cancer D. It can induce/aggravate menopausal hot flushes

Description : The following is true of raloxifene except: A. It acts as an estrogen agonist in bone B. It exerts estrogen antagonistic action on endometrium C. It increases risk of developing breast cancer D. It can induce/aggravate menopausal hot flushes

Last Answer : C. It has additional androgenic acitivity

What is true of tamoxifen: A. It can induce endometrial proliferation in postmenopausal women B. It exerts antiestrogenic activity in bone C. It raises LDL-cholesterol levels D. It is ineffective in estrogen receptor-negative breast cancer

Description : What is true of tamoxifen: A. It can induce endometrial proliferation in postmenopausal women B. It exerts antiestrogenic activity in bone C. It raises LDL-cholesterol levels D. It is ineffective in estrogen receptor-negative breast cancer

Last Answer : A. It can induce endometrial proliferation in postmenopausal women

In patients with benign prostatic hypertrophy, finasteride exerts the following action/actions: A. Reduces size of the prostate gland B. Increases peak urinary flow rate C. Relaxes vesical sphincter D. Both 'A' and 'B' are correct

Description : In patients with benign prostatic hypertrophy, finasteride exerts the following action/actions: A. Reduces size of the prostate gland B. Increases peak urinary flow rate C. Relaxes vesical sphincter D. Both 'A' and 'B' are correct

Last Answer : D. Both 'A' and 'B' are correct

Hydrocortisone exerts the following actions: A. Increases both K+ and Ca2+ excretion B. Decreases both K+ and Ca2+ excretion C. Decreases K+ but increases Ca2+ excretion D. Increases K+ but decreases Ca2+ excretion

Description : Hydrocortisone exerts the following actions: A. Increases both K+ and Ca2+ excretion B. Decreases both K+ and Ca2+ excretion C. Decreases K+ but increases Ca2+ excretion D. Increases K+ but decreases Ca2+ excretion

Last Answer : A. Increases both K+ and Ca2+ excretion

Thyrotropin exerts the following actions on the thyroid gland except: A. Increases vascularity B. Inhibits proteolysis of thyroglobulin C. Induces hyperplasia and hypertrophy D. Promotes iodide trappin

Description : Thyrotropin exerts the following actions on the thyroid gland except: A. Increases vascularity B. Inhibits proteolysis of thyroglobulin C. Induces hyperplasia and hypertrophy D. Promotes iodide trappin

Last Answer : B. Inhibits proteolysis of thyroglobulin

16.18 Thyrotropin exerts the following actions on the thyroid gland except: A. Increases vascularity B. Inhibits proteolysis of thyroglobulin C. Induces hyperplasia and hypertrophy D. Promotes iodide trapping

Description : 16.18 Thyrotropin exerts the following actions on the thyroid gland except: A. Increases vascularity B. Inhibits proteolysis of thyroglobulin C. Induces hyperplasia and hypertrophy D. Promotes iodide trapping

Last Answer : B. Inhibits proteolysis of thyroglobulin

Histamine exerts the following actions except: A. Dilatation of large blood vessels B. Dilatation of small blood vessels C. Stimulation of isolated guineapig heart D. Itching

Description : Histamine exerts the following actions except: A. Dilatation of large blood vessels B. Dilatation of small blood vessels C. Stimulation of isolated guineapig heart D. Itching

Last Answer : A. Dilatation of large blood vessels

Hyoscine differs from atropine in that it: A. Exerts depressant effects on the CNS at relatively low doses B. Exerts more potent effects on the heart than on the eye C. Is longer acting D. Has weaker antimotion sickness activity

Description : Hyoscine differs from atropine in that it: A. Exerts depressant effects on the CNS at relatively low doses B. Exerts more potent effects on the heart than on the eye C. Is longer acting D. Has weaker antimotion sickness activity

Last Answer : A. Exerts depressant effects on the CNS at relatively low doses

What is true of nimesulide: A. It exerts antiinflammatory action by several mechanisms in addition to cyclooxygenase inhibition B. It is preferred for long-term use in rheumatoid arthritis C. It is contraindicated in aspirin intolerant asthma patients D. All of the above

Description : What is true of nimesulide: A. It exerts antiinflammatory action by several mechanisms in addition to cyclooxygenase inhibition B. It is preferred for long-term use in rheumatoid arthritis C. It is contraindicated in aspirin intolerant asthma patients D. All of the above

Last Answer : A. It exerts antiinflammatory action by several mechanisms in addition to cyclooxygenase inhibition

Histamine exerts the following actions except: A. Dilatation of large blood vessels B. Dilatation of small blood vessels C. Stimulation of isolated guineapig heart D. Itching

Description : Histamine exerts the following actions except: A. Dilatation of large blood vessels B. Dilatation of small blood vessels C. Stimulation of isolated guineapig heart D. Itching

Last Answer : A. Dilatation of large blood vessels

Hyoscine differs from atropine in that it: A. Exerts depressant effects on the CNS at relatively low doses B. Exerts more potent effects on the heart than on the eye C. Is longer acting D. Has weaker antimotion sickness activity

Description : Hyoscine differs from atropine in that it: A. Exerts depressant effects on the CNS at relatively low doses B. Exerts more potent effects on the heart than on the eye C. Is longer acting D. Has weaker antimotion sickness activity

Last Answer : A. Exerts depressant effects on the CNS at relatively low doses

Susan pushes against a 100 kilogram rock with a force of 5 Newtons, but the rock doesn't move. The force the rock exerts on Susan is w) 0 Newtons x) 5 Newtons y) 20 Newtons z) 100 Newtons

Description : Susan pushes against a 100 kilogram rock with a force of 5 Newtons, but the rock doesn't move. The force the rock exerts on Susan is w) 0 Newtons x) 5 Newtons y) 20 Newtons z) 100 Newtons

Last Answer : ANSWER: X -- 5 NEWTONS

A man exerts a northward force of 100 newtons on a 50 kilogram box which sits on a level floor. If the frictional force is 80 newtons, what is the magnitude of the northward acceleration of the box?

Description : A man exerts a northward force of 100 newtons on a 50 kilogram box which sits on a level floor. If the frictional force is 80 newtons, what is the magnitude of the northward acceleration of the box? 

Last Answer : ANSWER: 0.4 METERS PER SECOND SQUARED

When a slingshot exerts a 10 Newton force on a rock, the rock accelerates at 50 meters per second squared. What force is required to accelerate the rock to 150 meters per second squared?

Description : When a slingshot exerts a 10 Newton force on a rock, the rock accelerates at 50 meters per second squared. What force is required to accelerate the rock to 150 meters per second squared? 

Last Answer : ANSWER: 30 NEWTONS 

A certain machine exerts a force of 200 newtons on a box whose mass is 30 kilograms. The machine moves the box a distance of 20 meters along a horizontal floor. What amount of work does the machine do on the box?

Description : A certain machine exerts a force of 200 newtons on a box whose mass is 30 kilograms. The machine moves the box a distance of 20 meters along a horizontal floor. What amount of work does the machine do on the box?

Last Answer : ANSWER: 4000 JOULES

A balloon filled with helium rises in air because (1) air exerts an upward force on the balloon (2) the balloon is weightless (3) helium is less dense than air (4) helium pushes down on the air below the balloon

Description : A balloon filled with helium rises in air because (1) air exerts an upward force on the balloon (2) the balloon is weightless (3) helium is less dense than air (4) helium pushes down on the air below the balloon

Last Answer : helium is less dense than air

Which of the following statements represents the FIRST step in seating new brushes on slip rings? A. Wrap sandpaper around the slip rings and slide it back and forth between the brushes and the slip rings. B. Press the brushes against the slip ring with a wood block. C. Increase brush pressure and run at no load for 3 to 4 hours. D. Apply seating compound under the brushes and run at no load for 2 hours.

Description : Which of the following statements represents the FIRST step in seating new brushes on slip rings? A. Wrap sandpaper around the slip rings and slide it back and forth between the brushes and the slip rings. B. ... to 4 hours. D. Apply seating compound under the brushes and run at no load for 2 hours.

Last Answer : Answer: A

Outdoor finish for shaded butcher block coffee table?

Description : Outdoor finish for shaded butcher block coffee table?

Last Answer : Butcher’s wax, assuming it is genuine hardwood (eg Maple) butcher block.

Figure below shows a block of mass 35 kg resting on a table. The table is so rough that it offers a self adjusting resistive force 10%

Description : Figure below shows a block of mass 35 kg resting on a table. The table is so rough that it offers a self adjusting resistive force 10%

Last Answer : Figure below shows a block of mass 35 kg resting on a table. The table is so rough that it ... so that the block does not slide along the table?

The rough surface of a horizontal table offers a definite maximum opposing force to initiate the motion of a block along with the table,

Description : The rough surface of a horizontal table offers a definite maximum opposing force to initiate the motion of a block along with the table,

Last Answer : The rough surface of a horizontal table offers a definite maximum opposing force to initiate the motion of ... of F2 adds up to the opposing force.