What is the recommended amount of time that a teenager should be participating in physical activity

A: 30 min

B: 60 min

C: 45 min

D: 15 min

Vinegar (acetic acid) in a solution will react with chalk (calcium carbonate) a solid. the rate of the reaction can be determined by how quickly carbon dioxide, one of the products, is produced.

A 3.0-v battery is connected to a 3.50-µf capacitor. how much energy is stored in the capacitor?

Earth's Moon is considered to be geologically dead because its interior has cooled considerably. Select the features of Earth that are missing on the Moon as a result of this cooling. A. clouds B. gravity C. impact craters D. a magnetic field E.

After striking both mirrors, at what angle relative to the incoming ray does the outgoing ray emerge?

You start with $15 and save $8 each week. What algebraic expression models models the total amount you save? A. 8+15w B. 15-8w C. 15+8w D. 23w

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.