How does water flowing over a waterfall involve both kinetic energy and potential energy?

Describe the evolution of a star with a mass like that of the Sun, from the main-sequence phase of its evolution until it becomes a white dwarf.

How many degrees is in the centre of the sun

The mass of an object is 201 g The object requires 150J to raise its temperature by 100°C. What is the specific heat of the object? 7.46 J/kg-K 0.00130 J/kg - K 3,020,000 J/kg. K 1500 J/kg. K

A motorcycle is capable of accelerating at 5.1 m/s2. Starting from rest, how far can it travel in 1.5 seconds? A. 3.8 m B. 4.5 m C. 3.2 m D. 5.7 m

Which group was guaranteed voting rights by the Fifteenth Amendment? A. women B. soldiers C. African Americans D. 18 year olds

Two blocks are at the top of a ramp. Block A slides without friction to the bottom, and at the same instant block B drops vertically to the ground. (a) Which block reaches the ground with the greater speed? Explain.

Wood is an example of a fossil fuel. User: The type of energy stored by fossil fuels such as coal is a. kinetic energy. b. mechanical energy. c. chemical potential energy. d. electromagnetic energy. User: An example of a fossil fuel is a. wood. b.

What type of changes does erosion cause? A physical B chemical C electrical D magnetic

Which of the following will exert a force on a magnet? another magnet a nearby piece of glass a nearby piece of plastic a nearby electric current

The rate at which light energy is radiated from a source is measured in which of the following units? A. Lumen B. Candela C. Lux D. Angstrom