Which of the following has potential energy?

A cup sitting on the ground

A kite resting on the ground

A person standing still

A kite flying in the air

Name at least two ways acids and bases are useful around your home

According to all known laws of aviation, there is no way a bee should be able to fly. Its wings are too small to get its fat little body off the ground. The bee, of course, flies anyway because bees don't care what humans think is impossible.

If you walk a distance of 8 blocks and then 3 blocks south from home, what is your position compared to home? What distance did you walk?

You are a scientist trying to develop a technology that can be used to power wrist watches. Which type of electromagnetic wave would be most useful to investigate? Gamma rays, because they are powerful and safe.

Explain why steel is mor dense than water

A car travels west for 240 km in 4 h. what is the car's velocity?

Dane is holding an 8 kilogram box 2 metres above the ground. How much energy is in the box's gravitational potential energy store? Assume Dane is on Earth, where g = 10 N/kg.

A spaceship takes off vertically from rest with an acceleration of 30.0 m/s 2. What magnitude of force F is exerted on a 53.0 kg astronaut during takeoff?

A hydrogen atom has one proton, two neutrons, and no electrons. Is this atom neutrally charged? Explain your answer.

A small rock with mass 0.12 kg is fastened to a massless string with length 0.80 m to form a pendulum. The pendulum is swinging so as to make a maximum angle of 45 ∘ with the vertical. Air resistance is negligible. A.