The hammer of an electric bell strikes 1440 times in a minute and does a work of 0.2 J per strike. what is the power of hammer in S. I. system?

Three moles of ideal gas is inside a sealed rectangular container of size 0.2 m x 0.2 m x 0.4 m. If the pressure inside the container is 498,840 N/m^2, what is the temperature of the gas inside the container?

11. You want to calculate the displacement of an object thrown over a bridge. Using - 10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?

Which is a covalent compound? Magnesium oxide forms small crystals, and the crystals are hard but brittle. Methane is a gas at room temperature and does not conduct electricity. Copper is metallic and can be hammered into different shapes.

The electricity went out at José's home, and he lit some candles until the lights came back on. The candle wax near the wick became soft right away, and melted over a temperature range. Which term best applies to the candle wax? A. amorphous solid B.

How are heat and light waves produced on and in the sun?

Differeniate between thermal energy and heat

The term that describes the time when the sun's are directly over the equator is:

A submarine can detect an approaching enemy submarine using sonar. If a stationary submerged submarine emits a 100kHz tone and receives a tone Doppler shifted by 200Hz, calculate the speed of the enemy submarine if the speed of sound in salt water

The planet Krypton has a mass of 7.6 * 1023 kg and radius of 1.7 * 106 m. What is the acceleration of an object in free fall near the surface of Krypton? The gravitational constant is 6.6726 * 10-11 N · m2 / kg2. Answer in units of m/s 2.

An input force of 50. newtons is applied through a distance of 10. meters to a machine with a mechanical advantage of 3.