A ball is thrown straight up with an initial velocity of 15 meters per second. How long will it take to drop 10 meters from its initial position?

Define wind ward side

How much do you have to increase the vertical distance to double the impact speed of an object?

How long does it take a 750-W coffeepot to bring to a boil 0.65 L of water initially at 13 ∘C? Assume that the part of the pot which is heated with the water is made of 360 g of aluminum, and that no water boils away.

AThe proper pH range for a swimming pool is between 7.2 and 7.8. Most pools use two substances, Na2CO3and HCL, to maintain this range. How would you adjust the pH if you found it was 8.2? 6.9?

Two guitars are playing together producing a beat frequency. The first guitar is playing at a frequency of 867 Hz and the beat is produced every 0.04 seconds.

Think about the process of heating water, the heating and upward motion of hot steam and air, and the spiral spinning. For these events, list each form of energy associated with the heat source, the water, the steam and air, and the spiral.

A long rope with mass m is suspended from the ceiling and hangs vertically. A wave pulse is produced at the lower end of the rope, and the pulse travels up the rope.

What is the potential engery of a 150 kg diver standing on a diving board that is 10m high?

Identify the three controls on a automobile they are responsible for causing the car to accelerate

How is the energy of a nuclear reactor converted to electricity?