Which of the following statements about geothermal energy is not true? a. it is not a practical source of energy. b. it is an important source of energy in volcanically active areas. c. it works best when the magma pool is near the surface of earth. d. it is a renewable source of energy. select the best answer from the choices provided a b c d

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up