Using the set-up seen here, ms. garcia places a golf ball between the globe and the flashlight. turning off the lights in the room, she shines a flashlight from behind the golf ball. the students observe the shadow of the golf ball falling on the globe. what is this setup trying to model?
a) a solar eclipse
b) the solar system
c) the idea of gravity
d) the surface of the moon

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?

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2