A locomotive starts from rest and accelerates at 0.12 m/s^2 to a speed of 2.4 m/s in 20 s. This motion could best be described as A.) constant acceleration and constant velocity

B.) increasing acceleration and constant velocity

C.) constant acceleration and increasing velocity

D.) increasing acceleration and increasing velocity

What is the length x of the side of the triangle below? (hint: use the cosine function)

Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b.refraction c.diffraction d. interference

The lid of a pressure cooker forms a nearly airtight seal. steam builds up pressure and increases temperature within the pressure cooker so that food cooks faster than it does in an ordinary pot. the system is defined as the pressure cooker and the water and steam within it. if 2.0 g of water is sealed in a pressure cooker and then vaporized by heating, and 5655 j must be added as heat to completely vaporize the water, what is the change in the system’s internal energy? answer in units of j.