Juan roller skates with a constant speed of 20km/h. How long will he take to travel a distance of 70 kilometers?

What is the mechanical energy of a falling apple with a kinetic of 5.2 joules and a potential energy of 3.5 joules

Earthquakes are most common: O A. where oceanic crust slides under continental crust. O B. in the middle of continents. O c. where two continental plates spread apart. D. on the edges of the Atlantic plate,

The allowed energies of a quantum system are 1.0 ev, 2.0 ev, 4.0 ev, and 7.0 ev. what wavelengths appear in the system's emission spectrum

Is it possible for a gas contained in a chamber to maintain a constant temperature while heat is being added to the gas? Explain why or why not.

Describe the effects of energy in your school and community

Why have plants in the alpine biome adapted to survive on limited nutrients?

At a molecular level, does plasma have more or less energy than other states of matter?

A bobsledder pushes her sled across horizontal snow to get it going, then jumps in. After she jumps in, the sled gradually slows to a halt.

How can you predict the action of the element

How is the mass of a liquid substance affected after it freezes A) It increases. B) It decreases. C) It stays the same.