What is friction caused by?

What is the shape of the graph for motion with constant, nonzero acceleration, the position-versus-time graph

Which of these questions about skateboarding can be answered using measurements? A. How much force is needed to break a skateboard? B. Why do people enjoy skateboarding? C. Which trick is the most popular? D.

Quickly spinning the handle of a hand generator, Kristina is able to light three bulbs in a circuit. When she spins the generator slowly, the bulbs are very dim.

Which waves can travel through a vacuum? A) light waves Eliminate B) ocean waves C) sound waves D) mechanical waves

Which of the following are homogeneous solutions? sugar water, air, peanuts and water, and unopened soft drink, and cement (Choose all that apply)

What should a free-body diagram look like for a skydiver that is still speeding up as he falls? There is an arrow up for air resistance and an arrow down for gravity. The arrows are the same length.

As a rocket moves farther and farther upward from the launch pad, what happens to the strength of Earth's gravitational field around the rocket? a. It gets weaker. b. It grows stronger. c. It remains constant.

Sully uses a battery and a coil of wire to create an electromagnet. Using the same materials, if he wants to increase the strength of his electromagnet, he must the number of loops in the coil of wire along its length.

How long does it take for light from a star that is 8 light years away to reach Earth? Question 7 options: 8 earth minutes 16 earth minutes 8 earth years 16 earth years

Why does water in hot springs always remain hot? Why doesn't it's thermal energy spread out?