Jamal is 8 miles away from his house. He rides his bike home toward home at a speed of 12 mph.. How far away from home is he after a half hour? 1 mile 2 miles 3 miles 4 miles

Point charges q1 = 51 µc and q2 = −27 µc are placed 1.0 m apart, with q2 on the right. what is the force (in n) on a third charge q3 = 19 µc placed midway between q1 and q2? (assume the positive direction is to the right. indicate the direction with the sign of your answer.)

Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?

The ability to make things happen is also called a. heat b. force c. matter d. energy