reddit One company sells a defibrillator for home use that uses a 9-volt DC battery. The battery is rated at 4.2 A•hr (amp•hour). Roughly how much charge can the battery deliver?

A roller coaster car moves in a vertical circle of radius R. At the top of the circle the car has speed v1, and at the bottom of the circle it has speed v2, where v2>v1. Suppose that v2 is in the x-direction, and y-axis is directed upward.

1. How many calories are released by 50 grams of 10°C water when it freezes to 0°C ice?

A balloon filled with helium gas at 20°C occupies 4.91 L at 1.00 atm. The balloon is immersed in liquid nitrogen at - 196°C, while the pressure is raised to 5.20 atm. What is the volume of the balloon in the liquid nitrogen?

Describe how an inclined plane increases the force without changing the amount of work done

Each part of the mixture has the same appearance.

If two waves are traveling at the same speed, which statement will be true about their wavelengths? A. The wave with higher frequency will have shorter wavelength. B. The wave with lower frequency will have shorter wavelength. C.

The heating of the lower layer of the atmosphere from radiation absorbed by certain heat - absorbing gasses is called?

In our physical world, by far, the most abundance free charge in the universe is the electron, which has a negative charge. What do we mean, then, when we say that the surface of an object is positively charged?

You're going camping and are thinking of carrying 3 gallons of water. How much does the water weigh, in units of pounds?

A student is performing a double-slit experiment to determine the wavelength of a light source. She has measured the distance between dark bands and the distance between the slits and the screen.