Normal force exerted per unit area by gas on walls of container is

A. temperature

B. energy

C. pressure

D. friction


1 Answer

Answer :

pressure

Related questions

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

Description : Normal force acting per unit cross sectional area is called A. weight B. pressure C. volume D. friction

Last Answer : pressure

Description : A rectangle-shaped open-to-sky tank of water has a length of 2 m and a width of 1 m. If the atmospheric pressure is assumed to be 100 kPa and thickness of the tank walls is assumed to be negligible, the force exerted by ... of water is A. 20 kN B. 50 kN C. 100 kN D. 200 kN

Last Answer : 200 kN

Description : A jet of water of cross-sectional area 20 sq. cm impinges on a plate at an angle of 60? with a velocity of 10 m/sec. Neglecting the friction between the jet and plate (density of water 1000/9.81 kgm-1 sec2 per cubic meter), the ... a.15 - 20 kg b.20 - 25 kg c.5 - 10 kg d.25 - 30 kg e.10 - 15 kg

Last Answer : a. 15 - 20 kg

Description : What force exerted by blood against the walls of blood vessels?

Last Answer : What is the answer ?

Description : The pressure exerted by a stationary liquid kept in a container at any point inside the liquid is known as ________ pressure. a)atmospheric b)hydrostatic c) air d)none

Last Answer : b)hydrostatic

Description : The pressure exerted by an ideal gas is __________ of the kinetic energy of all the molecules contained in a unit volume of gas.  A.one-half  B.one-third  C.two-third  D.three-fourth

Last Answer : Answer: C

Description : Blood pressure is the pressure exerted by blood on the walls of – (1) Heart (2) Veins (3) Arteries (4) Capillaries

Last Answer : (3) Arteries Explanation: Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the ... blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart.

Description : Blood pressure is the pressure exerted by blood on the walls of (1) Heart (2) Veins (3) Arteries (4) Capillaries

Last Answer : Arteries

Description : The wall of a dam is made thicker at the bottom than at the top because the pressure exerted by the water on the wall (1) depends on the thickness of the wall (2) increases with height of the wall (3) increases with depth of the wall (4) depends on the area of the wall

Last Answer :  increases with depth of the wall

Description : weight of water, the hydraulic mean depth of the sewer and the bed slope w is the unit of the sewer, then the tractive force exerted by flowing water, is A. w r S S B. w r1/2 C. w r S D. w r2/3

Last Answer : ANS: A

Description : Total force exerted upon the implement by a power unit called a)pull. B) draft C)side draft. D)unit draft

Last Answer : a)pull

Description : (5) A 6500-kg helicopter accelerates upward at 0.60 m/s² while lifting a 1200-kg car. (a) What is the lift force exerted by the air on the rotors? (b) What is the tension in the cable (ignore its mass) that connects the car to the helicopter?

Last Answer : I'll give you some hints: The mass of the helicopter is irrelevant to the solution. All you needs is the mass of the load (the car) and the acceleration to solve the problem. Remember that the ... it. Tension is directly related to force. Now go find the equations in the text, plug and crank.

Description : If the force exerted on an object is zero then the object will remain stationary- Explain ?

Last Answer : Zero force applied to an object means that the value of acceleration in it is zero. And since acceleration is needed to move a stable object, zero value of acceleration means that the object will remain stationary.

Description : : Force exerted on a person by atmosphere is A. 200 000 N B. 300 000 N C. 400 000 N D. 500 000 N

Last Answer : 200 000 N

Description : Electrical force exerted by two point charges on each other is inversely proportional to A. sum of their charges B. product of their charges C. distance between them D. square of distance between them

Last Answer : square of distance between them

Description :  Pair of forces that cause steering wheel of a car to rotate is called A. couple B. friction C. normal force D. weight

Last Answer : couple

Description : A hydrogen filled balloon rises in air because (a) The atmospheric pressure decreases with altitude (b) The acceleration due to gravity decreases with altitude (c) The density of air decreases with ... The buoyant force exerted by the air on the balloon is greater than the weight of the balloon

Last Answer : Ans:(d)

Description : For a body floating in a liquid the normal pressure exerted by the liquid acts at A) Bottom surface of the body (B) C.G. of the body (C) Metacentre (D) All points on the surface of the body

Last Answer : Answer: Option D

Description : Carlos is pulling a 40 kilogram cart with a horizontal force of 100 newtons. The force of friction on the cart is 20 newtons. The acceleration of the cart is: w) 2 meters per second squared x) 2.5 meters per second squared y) 20 meters per second squared z) 200 meters per second squared

Last Answer : ANSWER: W -- 2 METERS PER SECOND SQUARED

Description : Oncotic pressure refers to a) the osmotic pressure exerted by proteins. Oncotic pressure is a pulling pressure exerted by proteins, such as albumin. b) the number of dissolved particles contained in a ... . Osmotic pressure is the amount of pressure needed to stop the flow of water by osmosis.

Last Answer : a) the osmotic pressure exerted by proteins. Oncotic pressure is a pulling pressure exerted by proteins, such as albumin.

Description : Surface energy per unit area of a surface is numerically equal to (A) Atmospheric pressure (B) Surface tension (C) Force of adhesion (D) Force of cohesion

Last Answer : Answer: Option B

Description : What is defined as the force per unit area?  A. Pressure  B. Energy  C. Work  D. Power

Last Answer : Pressure

Description : When the greatest pressure exerted on the ground by a man?

Last Answer : – When he stands on the toes of one foot

Description : The energy of molecular motion in a gas appears in the form of: w) friction x) internal energy y) temperature z) potential energy

Last Answer : ANSWER: Y -- TEMPERATURE

Description : Pick up wrong statement about friction force for dry surfaces. Friction force is  (A) Proportional to normal load between the surfaces  (B) Dependent on the materials of contact surface  (C) Proportional to velocity of sliding  (D) Independent of the area of contact surfaces 

Last Answer : (C) Proportional to velocity of sliding 

Description : It is observed that the total pressure exerted by air on the man of average size is around 14.7 lb wt. per square inch. But the man feels quite comfortable,. It is because of-----? A. An equal and ... B. of the height of a man C. of gravity D. Earth pulls the man upward E. None of these

Last Answer : A. An equal and opposite pressure acts from inside (Answer)

Description : A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is (A) 2.89 kN (B) 8.29 kN (C) 9.28 kN (D) 28.9 kN

Last Answer : Answer: Option B

Description : Incorrect statement for co-efficient of friction could be that A. The coefficient of friction is denoted by the Greek letter µ. B. The coefficient of friction is directly proportional to ... D. The coefficient of friction is inversely proportional to the force pressing the surfaces together

Last Answer : The coefficient of friction is constant even in the conditions of fast slipping and high contact pressure

Description : The vapour pressure exerted by the moisture contained in a wet solid depends upon the (A) Nature of the moisture (B) Temperature (C) Nature of the solid (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Tensile stress is equal to A. Force per unit area B. Force per unit volume C. Extension per unit length D. Extension per unit area

Last Answer : Force per unit area

Description : A steel rod of sectional area 250 sq. mm connects two parallel walls 5 m apart. The nuts at the  ends were tightened when the rod was heated to 100°C. If steel = 0.000012/C°, Esteel = 0.2  MN/mm2 , the ... N/mm2 (B) 100 N/mm2 (C) 120 N/mm2 (D) 150 N/mm2 Answer: Option 

Last Answer : (C) 120 N/mm

Description : Why are there jets in the midlatitudes in the upper troposphere? (a) Air is warmer in the tropics than the poles, resulting in a poleward pressure gradient that increases with increasing height. (b) Because ... d) Due to the constant bending by the Coriolis force. (e) Both A and D are correct.

Last Answer : (e) Both A and D are correct.

Description : The strain energy due to volumetric strain  (A) Is directly proportional to the volume  (B) Is directly proportional to the square of exerted pressure  (C) Is inversely proportional to Bulk modulus  (D) All the above 

Last Answer : (D) All the above 

Description : The power brake may be exerted by A. Electrical energy B. Engine vacuum C. Air pressure D. All of the above

Last Answer : A. Electrical energy

Description : What ideal gas is stored in a container at constant volume. If the temperature (T) were increased to 3T what would be the change in pressure (P)?

Last Answer : Feel Free to Answer

Description : 1m3 of an ideal gas at 500 K and 1000 kPa expands reversibly to 5 times its initial volume in an insulated container. If the specific heat capacity (at constant pressure) of the gas is 21 J/mole . K, the final temperature will be (A) 35 K (B) 174 K (C) 274 K (D) 154 K

Last Answer : (C) 274 K

Description : Ice skating is possible and practical because of a unique property of water. Is it because: w) The coefficient of kinetic friction of steel on frozen water decreases with decreasing temperature x ... sublimes y) The melting point decreases with increasing pressure z) Ice is a good thermal insulator 

Last Answer : ANSWER: Y -- THE MELTING POINT DECREASES WITH INCREASING PRESSURE 

Description : What would you expect in a graph showing the stiffness of a spring over the force exerted onto it?

Last Answer : My thoughts, and I'm just assuming, are that the graph would have two axes. One (probably the x-axis) would be the force exerted on the spring, measured in some unit. The other ( ... the force exerted on the spring increases, I think that the stiffness of the spring would change accordingly.

Description : A cannon of barrel length 2 m fires a shell of weight 6 kg with a muzzle velocity of 50 m/sec. The force exerted by the gases on the shell would be approximately a.76 t b.19 t c.152 t d.8.5 t e.38 t

Last Answer : e. 38 t

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).

Description : What is a upward force exerted on objects in a fluid?

Last Answer : The upward force exerted on an object in a fluid isbuoyancy.

Description : What Each little bit of matter exerted the force of?

Last Answer : Gravity.

Description : If the distance between the earth and the sun were twice what it is now, the gravitational force exerted on the earth by the sun would be (a) twice as large as it is now (b) four times as large as it is now (c) half of what it is now (d) one-fourth of what it is now

Last Answer : Ans:(d)

Description : Water is flowing at 1 m/sec through a pipe (of 10 cm I.D) with a right angle bend. The force in Newtons exerted on the bend by water is (A) 10 √2π (B) 5π/2 (C) 5 √2π (D) 5π/√2

Last Answer : (B) 5π/2

Description : The rate of change of moment of momentum represents the __________ by the fluid. (A) Torque applied (B) Force exerted (C) Work done (D) Power developed

Last Answer : (A) Torque applied

Description : Drag is defined as the force exerted by the (A) Fluid on the solid in a direction opposite to flow (B) Fluid on the solid in the direction of flow (C) Solid on the fluid (D) None of these

Last Answer : (B) Fluid on the solid in the direction of flow

Description : The weight of a body is due to  (A) Centripetal force of earth  (B) Gravitational pull exerted by the earth  (C) Forces experienced by body in atmosphere  (D) Gravitational force of attraction towards the centre of the earth 

Last Answer : (D) Gravitational force of attraction towards the centre of the earth 

Description : Rain drops falling through atmospheric air attain limited terminal velocity, because of (A) Upward thrust due to air (B) Viscous force exerted by air (C) Surface tension effects of water (D) Force of gravity

Last Answer : Option B

Description : The force exerted by a moving fluid on an immersed body is directly proportional to the rate of change of momentum due to the presence of the body. This statement is called (A) Newton's law of motion (B) Newton's law of cooling (C) Newton's law of viscosity (D) Newton's law of resistance

Last Answer : Answer: Option D