Workers do 8,000J of work on a 2,000-N crate to push it up a ramp. If the ramp is 2 m high, then what is the efficiency of the ramp?

Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

If y gets smaller as x gets bigger and y have an relationship?