Do two objects of the same mass contain the same amount of heat at the same temperature?

Answer 1

Acceleration due to gravity is constant on all objects. If air resistance is neglected, then two objects will fall at the same rate, no matter what their mass. Acceleration due to gravity on the surface of the earth is 9.8 meters per second per second, or about 32 feet per second per second.

Answer 2

The simple answer is no. Speed is defined as distance divided by time. Velocity always has a vector (direction). Instantaneous speed is velocity where the vector is not stated. I know this sounds a little complicated. But here is an example (draw yourself a picture): A car has a velocity of 100 km per hour with respect to the road. It is easy to see that the vector is going in the direction of the car. The point of contact of the tire with the road has zero velocity. The axle of the car has the same velocity and direction as the car. The velocity of the top of the tire therefore has TWICE the velocity of the car.

Answer 3

Not necessarily, Remember, KE = .5mv^2 Even if they're going the same "speed" they might be moving in different directions, changing their KE. Also, if they don't have the same mass, they can have different kinetic energies. Example: A train and a feather are moving at 50 miles per hour, which would you rather be hit with....The feather, of course! Even though they have the same velocity, one has much less mass.

Answer 4

No. If their momentum is the same, you only know that MaVa = MbVb. That doesn't guarantee that 1/2 MaVa2 = 1/2 MbVb2. Example: Body-A: Ma = 3, Va = 5 Momentum = MaVa = 15 K.E. = 1/2 MaVa2 = 37.5 ====================== Body-B: Mb = 5, Vb = 3 Momentum = MbVb = 15 (same as Body-A) K.E. = 1/2 MbVb2 = 22.5 (not same as Body-A)

Answer 5

Sure. Kinetic energy depends on both mass and speed. So two objects could have

different speeds, but if their masses are also different by just the right amount,

their KE's could be equal.

Answer 6

Only if their masses are equal.

For example ...

If you're swimming at 2 miles per hour and hit the pier, you probably don't leave the same mark as
a battleship that's gliding along at 2 miles per hour when it hits the pier.

Kinetic energy is proportional to mass as well as (speed)2

Answer 7

by taking an e.g let a body of mass 1kg and having a velocity of 1m/sec .if we increase mass to 2kg then energy will be 1kg m/sec.if we increase speed to 2m/sec then energy will be 2kg m/sec.

Answer 8

no

Answer 9

yes