During the summer months, why is the average temperature much higher in many regions of the globe?

a. there is no snow.

b. the amount of sunlight reaching the environment stays constant.

c. more sunlight reaches the environment.

d. less sunlight reaches the environment.

Natural forces that can alter ecosystems include seasons and climate changes. t or f

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.