Which of the following is an example of a device that uses a wheel and axle?

Check all that apply

A. frisbee

B. light bulb

C. doorknob

D. bicycle

(multiple answers)

Explain how energy is conserved when nuclear fission or fusion occurs

What path does energy travel as it changes from kinetic to electrical energy in a hydroelectric plant

What is the atomic number for titanium

A grasshopper hops along a level road. on each hop, the grasshopper launches itself itself at an angle of 45 degrees. and achieves a range of 0.77 m.

A particle initially at rest moves along in a line so that its acceleration is a (t) = 10 / (t+1) for t>=0. What is the velocity of the particle at time t=4?

A 3.0 kg mass moving to the right at 1.4 m/s collides in a perfectly inelastic collision with a 2.0 kg mass initially at rest. what will the velocity of the combined mass be after the collision? show your work.

How does Earth get energy from the sun?

Which statement describes the process of subduction? A) Convection currents pull a plate into the mantle. B) One plate slides beneath another due to gravitational pull. C) Materials are transferred within Earth's interior by density.

Match each number to how it would appear in scientific notation. A. 2,500 2.5 * 10-1 B. 25 2.5 * 10-3 C. 0.0025 2.5 * 103 D. 0.25 2.5 * 101

How do you find the velocity when an object is at rest?