Description : As the train starts moving, a man sitting inside leans backwards because of (a) Inertia of rest (b) Inertia of motion (c) Moment of inertia (d) Conservation of mass
Last Answer : Ans:(a)
Description : A moving body on Earth ordinarily comes to rest by itself because of the (a) Law of inertia (b) Forces of friction (c) Conservation of momentum (d) Gravity
Last Answer : Ans:(b)
Description : If you throw a ball across a field, which forces are most likely to cause it to stop? a) Inertia and Magnetism b) Friction and Gravity c) Wind resistance and magnetism d) Gravity and Inertia
Last Answer : b) Friction and Gravity
Description : As the train starts moving, a man sitting inside leans backward is an example of?
Last Answer : Inertia of rest
Description : Do you feel more comfortable on a self supporting, "A" frame type of tall ladder, or one that leans against a tree, or house, for support?
Last Answer : With regular ladders I always fear that the base will slide backwards. On the other hand, A-type ladders seem awfully wobbly and prone to tipping over. I prefer permanently affixed ladders.
Description : Kevin notices that when Alice weighs tomatoes at the checkout counter , she regularly leans on the scale. Kevin's consideration about reporting this practice to top management involves ethical ... regard to: A)organisational relationships. B)opportunity. C)product issues. D)promotion issues.
Last Answer : A)organisational relationships.
Description : A sheet of paper can be pulled out quickly from under a glass of water without spilling the water. This phenomenon illustrates (a) lack of friction between paper and glass (b) newton’s third law of motion (c) inertia (d) acceleration
Last Answer : Ans:(c)
Description : It is difficult to walk on ice because of ______. (1) absence of friction (2) less inertia (3) more inertia (4) more mass
Last Answer : (1) absence of friction Explanation: It's difficult to walk on ice because there's very little friction between the bottoms of your shoes and the ice. Friction is a force that opposes motion.
Description : Newton's first law is also known as __. (1) Law of Friction (2) Law of Momentum (3) Law of Inertia (4) Law of Motion
Last Answer : (3) Law of Inertia Explanation: Newton's first law of motion is also known as the law of inenrtia. It states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Description : Vehicle will accelerate as long as A. air resistance is greater than thrust B. air resistance is greater than inertia C. thrust is greater than air resistance and friction D. friction is greater than thrust
Last Answer : thrust is greater than air resistance and friction
Description : Often an unbalance of forces is produced in rotary or reciprocating machinery due to the ______ * 1 point (A) Centripetal forces (B) Centrifugal forces (C) Friction forces (D) Inertia forces
Last Answer : (D) Inertia forces
Description : Why is weightlessness experienced while orbiting the earth in space ships? (1) Inertia (2) Acceleration (3) Zero gravity (4) None of these
Last Answer : (4) None of these Explanation: The reason astronauts experience weightlessness which orbiting the earth in spaceships is that they are in free fall. A spacecraft in orbit is falling towards the Earth, because ... in its orbit fast enough that the path it follows is a curve that is a closed ellipse.
Description : Which formula is used to calculate mass moment of inertia (I G ) of a circular rim about the axis through centre of gravity? a. mr 2 /2b. mr 2 /12 c. mr 2 /4 d. mr 2
Last Answer : d. mr 2
Description : Mach number is important in a fluid flow problem, when the inertia and __________ forces predominate. (A) Elastic (B) Viscous (C) Gravity (D) None of these
Last Answer : (A) Elastic
Last Answer : A) Elastic
Description : Euler number is defined as the ratio of inertia force to __________ force. (A) Pressure (B) Elastic (C) Gravity (D) Viscous
Last Answer : (A) Pressure
Description : 02. The ratio of the inertia force to the gravity force is called Froude number. A) Agree B) Disagree
Last Answer : A
Description : Euler's number is the ratio of __________ force to pressure force. (A) Inertia (B) Gravity (C) Viscous (D) None of these
Last Answer : Answer: Option A
Description : The product of mass and acceleration of flowing liquid is called (A) Inertia force (B) Viscous force (C) Gravity force (D) Pressure force
Description : Froude's number is the ratio of inertia force to (A) Pressure force (B) Elastic force (C) Gravity force (D) Surface tension force
Last Answer : Answer: Option C
Description : The force present in a moving liquid is (A) Inertia force (B) Viscous force (C) Gravity force (D) All of these
Last Answer : Answer: Option D
Description : Reynold's number is the ratio of the inertia force to the (A) Surface tension force (B) Viscous force (C) Gravity force (D) Elastic force
Last Answer : Answer: Option B
Description : Reynold's number is the ratio of inertia force to (A) Pressure force (B) Elastic force (C) Gravity force (D) Viscous force
Description : Select the correct statement (A) Weber's number is the ratio of inertia force to elastic force. (B) Weber's number is the ratio of gravity force to surface tension force. (C) Weber's number ... force to pressure force. (D) Weber's number is the ratio of inertia force to surface tension force.
Description : The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, ... (IG/ ) - (B) (IG/ ) - (C) ( /IG) + (D) (IG/ ) +
Description : If a linear traverse follows a sharp curve round a large lake where it is difficult to have long legs, the accuracy of the traverse may be improved by (A) Taking short legs (B) Making ... (C) Making a subsidiary traverse to determine the length of a long leg (D) All the above
Last Answer : (C) Making a subsidiary traverse to determine the length of a long leg
Description : What type of friction cause a car tire to turn on the road?
Last Answer : What is the answer ?
Description : Which property of light best explains the way a straw appears to “break” when placed in a glass of water and viewed from the side? a) Reflection b) Refraction c) Absorption d) Water waves
Last Answer : b) Refraction
Description : In that recent clip where Hillary explains why her hand was covering her mouth, why is her hair sticking straight out on one side of her head?
Last Answer : Link? I haven’t seen this yet.
Description : Swinging drawbar is advantageous because it help A. Taking short turn with machine wider than the tractor B. Reduces side draft C. Leaves only small area uncovered at corner of the fied D. All the above
Last Answer : A. Taking short turn with machine wider than the tractor
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
Description : Only force acting on a bouncing ball is A. gravity B. weight of ball C. friction D. a and b both
Last Answer : a and b both
Description : Fluidised beds are formed, when the (A) Fluid friction is zero (B) Gravity force is less than the fluid friction (C) Pressure forces equal gravity forces (D) Sum of the fluid friction and pressure forces is equal and opposite to gravity forces
Last Answer : (B) Gravity force is less than the fluid friction
Description : Which of the following is not a dimension-less parameter? (A) Euler number (B) Specific gravity (C) Fanning friction factor (D) None of these
Last Answer : (D) None of these
Description : What is geostrophic balance? (a) The exact balance of incoming SW and outgoing LW radiation at the top of the atmosphere. (b) The exact balance of vertical pressure gradient and gravity in ... friction. (d) The exact balance of the Coriolis force and the horizontal pressure gradient force.
Last Answer : (d) The exact balance of the Coriolis force and the horizontal pressure gradient force.
Description : What disease can cause a random bald spot, sharp pain in the side of the throat and random bumps on his chest?
Last Answer : The only thing that I can think of, is perhaps a thyroid condition. But, his best bed is to seek a professional. His symptoms seem extreme.
Description : Sharp pain on my right side?
Last Answer : Go to the doctors and get a check up is the best way to find out anything. It could be very dangerous or it might be nothing at all, but yeah you should seriously think about going to the doctor.
Description : What would cause a Real sharp pain in lower RIGHT side of abdomen making back hurt as well. There is a lump that is really sensitive also?
Last Answer : You need to see a doctor instead of fooling around on theinternet. Pain is a warning from your body that something is verywrong.
Description : A passenger standing in a bus is thrown outward when the bus takes a sudden turn. This happens due to – (1) Outward pull on him (2) Inertia of motion (3) Change in momentum (4) Change in acceleration
Last Answer : (2) Inertia of motion Explanation: This is inertia of direction. It is the ability of body to be in a state of direction of motion for example sun holds planets in a fixed elliptical path .this ... at rest or moving with a constant velocity. It is the property possessed by a body to resist change.
Description : A passenger standing in a bus is thrown outward when the bus takes a sudden turn. This happens due to (1) Outward pull on him (2) Inertia of motion (3) Change in momentum (4) Change in acceleration
Last Answer : Inertia of motion
Description : In Joule's experiment, an insulated container contains 20 kg of waterinitially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated ... temperature of water (in °C) is (A) 40.5 (B) 34.4 (C) 26.8 (D) 25
Last Answer : (B) 34.4
Description : The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number) (A) 1/RN (B) 4/RN (C) 16/RN (D) 64/RN
Description : The centre of gravity of a sprinter during the race lies – (1) Ahead of his feet (2) Behind his feet (3) At the centre of the body (4) To the left side of the body
Last Answer : (1) Ahead of his feet Explanation: Running is a means of terrestrial locomotion allowing humans and other animals to move rapidly on foot. It is simply defined in athletics terms as a gait in ... are kept mostly straight and the center of gravity vaults over the legs in an inverted pendulum fashion.
Description : The centre of gravity of a sprinter during the race lies (1) ahead of his feet (2) behind his feet (3) at the centre of the body (4) to the left side of the body
Last Answer : ahead of his feet
Description : A car crashed into a pianist's car while taking a turn on a intersection. While exchanging insurances, what did the pianist say to the person? Format: That was ____ turn lad! Next time, ____ for cars while turning on an intersection! Now, I gotta get ____ to the studio for my piano recital! -Riddles
Last Answer : That was A-Sharp turn lad! Next time, B-Sharp for cars while turning on an intersection! Now, I gotta get Bach to the studio for my piano recital!
Description : Do you have an idea why my VW Jetta 1.8 L Turbo car blows out a cloud of blue smoke whenever I take a sharp corner or on-ramp? It lasts about 10 seconds, then stops smoking!
Last Answer : If the oil cap is not missing or loose I would venture to guess you have a bad seal. Can you see the source? Is it dripping when parked? Oil seals really require a mechanic to properly fix. (Unless you have a good torque wrench and do not mind getting really dirty.)
Description : To gain market share Lada entered car markets with a comparatively low price. One of the negative side effects of taking this pricing position is A)a negative impact on consumers' perceptions of ... high return on investment levels affecting tax balances owed. D)poor survival chances in the market.
Last Answer : A)a negative impact on consumers' perceptions of quality.
Description : A hydrometer is used to measure the ____________. A. specific gravity of a battery electrolyte B. water pressure in a deck pipeline C. amount of potable water a vessel is taking on D. power developed by a salt water service pump
Last Answer : Answer: A
Description : When troubleshooting a lead-acid storage battery, a weak or dead cell is best detected by _________________. A. measuring and comparing all cells' specific gravity B. taking an open circuit ... electrolyte levels of each cell D. taking each cell's temperature with a calibrated mercury thermometer
Description : A teenager has swelling involving his upper lip, the corner of his nose and a region under his left eye. The swollen area is soft, fluctuant and pointed on the labial plate under his ... and test vitality of his teeth E. Write prescription for antibiotics and delay treatment until swelling is
Last Answer : A. Refer him to physician IV abs riesgo de thrombosis de seno cavernoso