The first law of thermodynamics states that E=Q-W. How is this also a statement of the principle of conservation of energy?

A brick is dropped from 100m up. Find it's impact velocity and air time.

A harmonic wave is traveling along a rope. The oscillator that generates the wave completes 42.0 vibrations in 20.8 s. A given crest of the wave travels 371 cm along the rope in a time period of 11.6 s. What is the wavelength? Answer in units of m.

What does buoyancy depend on? A. the density of the object and the density of the fluid B. atmospheric pressure and the density of the object C. The density of the object and the force of gravity D.

This is found by multiplying pi by the radius squared.

What is the current produced by the solar cells of a pocket calculator through which 4.00 C of charge passes in 4.00 hr? Give your answer in mA.

Which of these is an example of temperature changing over time? A. a pan cools off on the stove B. a frozen dinner sits in the freezer C. a mug is at room temperature on the counter D. two glasses of water are filled from the tap and mixed together

A syrup added to an empty container with a mass of 115.25g. When 0.100 pint of syrup is added, the total mass of the container and syrup is 182.48g. Determine the density ... ?

MOST high schools teach biology, then chemistry, then physics. What do you see as some of the disadvantages of the traditional sequence to both students and teachers.

If you break a bar magnet in half, each half

If a forklift raises a 76-kg load a distance of 2.5 m, about how much work has it done?