The zeroth law of thermodynamics describes the state where we can say what about the movement of heat between two substances? A. The latent heat is increasing B. The movement of heat is rapid C. There is no movement of heat D. The latent heat is decreasing E. The movement of heat is slow.

Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies.

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s