What are the two main categories of ecosystems?

A hockey puck slides off the edge of a platform with an initial velocity of 20 m/s horizontally. The height of the platform above the ground is 2.0 m. What is the magnitude of the velocity of the puck just before it touches the ground

Satellite communication is only possible using A) analog transmission. B) digital transmission. C) sound waves to transmit signal. D) cellular devices such as phones.

Factors that affect the intensity of light from a source

When the temperature of a gas in a ballon is reduced by half the average kinetic energy of the particles is

What happens during an equinox?

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.