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Why does San Francisco California have different temperatures / climates than Lexington Kentucky?

The loudness of a sound wave is affected by the wave's A. pitch B. frequency C. amplitude D. wavelength

A blue-light photon has a wavelength of 4.80 * 10-7 meter. What is the energy of the photon?

Mike pushes a box with a force of 30 N forward, but the box resists with a force of 10N in the other direction. what is the net force? are the forces balanced or unbalanced? What will happen to the motion of the box?

A 66.5-kg hiker starts at an elevation of 1270 m and climbs to the top of a peak 2660 m high. (a) What is the hiker? s change in potential energy? (b) What is the minimum work required of the hiker? (c) Can the actual work done be greater than this?

Based on how the book describes a heat pump in sec 16.3 how does a heat pump prove law of conservation of energy

When a gas in a container is squeezed to half its volume, its density?

A ballet student with her arms and a leg extended spins with an initial rotational speed of 0.90rev/s. As she draws her arms and leg in toward her body, her rotational inertia becomes 0.80 kg⋅m2 and her rotational velocity is 4.1rev/s.

The power rating of a vacuum cleaner is 0.8 kilowatts. If you use the vacuum cleaner for 2.5 hours, how much energy does it use?

Which has more gravitational potential energy - - a cliff diver at the top of the cliff or a cliff diver at the bottom of the cliff?