Explain what you think causes planets to have weaker or stronger gravity than Earth. Predict what gravity would be like on a planet with a mass equal to Earth's but a diameter half the size of Earth's.

Which of the following is chararestic of all reversible systems at equilibrium

What do kinetic and potential energy have in common

How much heat do you need to raise the temperature of 150 g of ice from - 30°C to - 15°c?

A longitudinal wave causes its medium to move in what direction? O A. Perpendicular to the direction the wave travels. B. Parallel to the direction the wave travels. C. Both perpendicular and parallel to the direction the wave travels. D.

Where does your socks disappear

3. A compound was analyzed and found to contain 9.8 g of nitrogen, 0.70 g of hydrogen, and 33.6 g of oxygen. What is the empirical formula of the compound?

A 126-gram sample of titanium metal is heated from 20.0°C to 45.4°C while absorbing 1.68 kJ of heat. What is the specific heat of titanium?

What pressure (in atm) will a sample of o2 gas occupy at 100.0 ml, if o2 has a volume of 25.00 ml at 2.0 atm?

What happens when francium and nitrogen are mixed

Which type of chemical reaction occurs in 2KClO3 Right arrow. 2KCl + 3O2