How do organisms interact with each other?

How fast is a ball going when it hits the ground after being dropped from a height of 13 m? The acceleration of gravity is 9.8 m/s2. A. 14.2 m/s B. 10.5 m/s C. 8.7 m/s D. 16.0 m/s

What does diffusion and active transport have in common

Calculate the average speed in meters/minute for the trip represented by the walk graphed here. A) 0.5m/min B) 1m/min C) 5m/min D) 30m/min

What is the metric unit of force? kg kg/cm^3 kg/cm^2 N

In what solar system model was the sun proposed as the center of the solar system? A. geocentric model B. Ptolemaic model C. heliocentric model D. None of the above

A swimmer jumps from a waterfall thats is 8.5 m high from the lake below. How fast must he run horizontally to dive 2.5m away from the base of the waterfall?

What happens (as far as energy goes) when a molecule of gas strikes the wall of a container?

The boom of a fire truck raises a fireman (and his equipment - total weight 280 lbf) 60 ft into the air to fight a building fire.

Two masses are separated by 1 m. suppose the masses are moved so they are 2 m apart how will the gravitational force change

Bob rubs a piece of fur on a hand rubber rod, giving the rod a negative charge. what happens?