Explain How does the sun cause wind

What does an atomic number and a mass number in a atomic symbol of an element represent?

Electrons in an x-ray tube are accelerated through 144 kV and directed toward a target to produce x-rays. Calculate the power of the electron beam in this tube if it has a current of 16.0 mA

Which way do electrons within a rectangular rod move when a negatively-charged balloon is brought near a positively-charged rod?

Which of the following is used in Sonata II's prepared piano? A. Small pieces of rubber B. Copper wire C. Coins D. Wooden blocks

All of the following statements are true when an individual is prone to catastrophic thinking except

In what way does varying the length of the string change the vibration

A 1200 kg car moving at 7.8 m/s collides with a stationary car of mass 1500 kg. if the two vehicles lock together, what is their combined velocity immediately after the collision?

Which have more kinetic energy a 100g ball, a 200g ball, or a 500g ball explain

An internal combustion engine uses fuel, of energy content 44.4 MJ/kg, at a rate of 5 kg/h. If the efficiency is 28%, determine the power output and the rate of heat rejection.

Fleas often live on dogs or cats and bite them for meal of blood. This can be harmful to the cat or dog that is bitten. What type of symbiotic relationship is that?