Angel has rubbed a balloon with wool to give it a charge of -1.0x10 C. He then
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acquires a plastic rod with a charge of 4.0x10 C. He holds the rod a distance of
50cm above the balloon. What is the force of attraction between the rod and the
balloon?

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

What is the temperature of 0.750 mol of a gas stored in a 6,850 ml cylinder at 2.21 atm? . 2.95 k 5.24 k 138 k 246 k

Two people each hold the end of a rope and create waves by moving their arms up and down. this wave is best classified as a transverse wave because a) both the rope particles and the wave are moving in the same direction. b) the wave is moving up and down as the particles of the rope move horizontally. c) the wave is moving horizontally as the particles of the rope move up and down. eliminate d) the wave is moving in a parallel direction with the motion of the person's arms.