Which of the following does not happen during the phase change from solid to liquid?
a. Heat is absorbed.
b. The temperature rises.
c. Melting occurs.
d. Molecules move faster.

Initially, a particle is moving at 5.33 m/s at an angle of 37.9° above the horizontal. two seconds later, its velocity is 6.11 m/s at an angle of 54.2° below the horizontal. what was the particle's average acceleration during these 2.00 seconds in the x-direction (enter first) and the y-direction?

What are chlorofluorocarbons and what impact do they have on the atmosphere?

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)