Answer: energy transfer. or, kinetic energy.
Explanation:
when something collides with another, it transfers kinetic energy to the other it collided with, making it move.
I'm not sure that's true ... we'd need to see some numbers.
But if it is true, it's the same reason why some places don't
want ladies to walk on their floors with high heels.
Pressure is (weight) divided by (area).
Pressure exerted
by a ballerina = (ballerina's weight)/(area of her toe on the floor)
Pressure exerted
by an elephant = (elephant's weight)/(area of 4 elephant feet)
Pressure exerted by
a lady in high heels = (lady's weight) / (area of 1 or 2 heels)
You can see that the greatest weight might not exert the greatest
pressure, and the smallest weight might not exert the smallest
pressure. The area is important, and it takes an awful lot of toes
or high heels to equal the area of one or more elephant's feet.
Recall this equation for a device in a direct current circuit:
P = IV
P is the power dissipated by the device, I is the current through the device, and V is the voltage drop of the device.
If we choose to use the ampere as the unit of current and the volt as the unit of voltage, then the product of the current and the voltage will give the power with watts as the unit.
Answer:
False.
Explanation:
Lets assume our positive direction to the right (this reasoning works for any direction). A negative velocity would then be then directed to the left. If it varies as such that it aproaches to zero, it means that the variation is directed to the right, and that is where the direction of the acceleration must be pointing. In other words, its losing its velocity, so the acceleration must point opposite to the velocity. Then it means the acceleration is positive.
