What is the different features between the bar magnet and the horseshoe magnet?

What is the definition of watt

How is the acceleration of an object in uniform circular motion constant?

The equation for density is mass divivded by volume. an increase in denstiy can result from all of following expect?

Which of the following expressions uses the correct conversion factor to convert 35.7 km into the equivalent distance in miles? A) 35.7 km * 1 km/1.609 milesB) 35.7 km * 1 mile/1.609 milesC) 35.7 km * 1 km/1.609 kmD) 35.7km * 1 mile/1.609 km

The use of liquid fuel revolutionized: A. observation of planets from Earth B. ideas about the orbits of planets C. space exploration and travel D. calculation of astronomical distances

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?