What is the velocity of a quarter dropped from a tower after 10 s?

If 1 lb of fat is stored by the body for each 14.6×103kj of excess nutritional energy consumed, how long will it take this person to gain 1 lb?

Jackson is designing a new heater, and he wants to experiment with different thermally conductive materials. which of these materials would be useful in conducting heat?

What is the temperature in degrees celsius of a substance with a tempature of 49k