Which three types of electromagnetic waves carry most of the Sun's energy that strikes Earth?
A) Infrared waves, light, ultraviolet waves
B) Ultraviolet waves, light, microwaves
C) Light, ultraviolet waves, radio waves
D) X-rays, infrared waves, gamma waves

Which accounts for an increase in the temperature of a gas that is kept a constant volume

It is really hard for me right know

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.