1. (03.09 MC)

Each year at a college, there is a tradition of having a hoop rolling competition. Alex rolls his 0.250 kg hoop down the course. If the hoop has a radius of 50.0 cm, what is the moment of inertia of Alex's rolling hoop? (2 points)
0.0625 kg ⋅ m2
0.125 kg ⋅ m2
12.5 kg ⋅ m2
625 kg ⋅ m2

A5 nc point charge is at the origin and a second 3 nc point charge is on the x-axis at x = 0.8 m. find the magnitude and direction of the electric field on the x-axs at x = 0.2 m. you may express the direction by letting positive field mean the positive x direction

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults