F an atom has 6 valence electrons, how many electrons does it need to gain to achieve a stable electron configuration?

What is the interaction that explains why windows rattle when a certain note is played on an organ? Absorption Diffraction Relection Resonance

Case 1: A 0.780-kg silver pellet with a temperature of 85 oC is added to 0.150 kg of water in a copper cup of unknown mass. The initial temperature of the water and the copper cup is 14 oC.

Explain why energy is necessary to chemical reactions, and describe some common sources of energy.

One section of a pipe carrying water has a cross-sectional area of 20 cm2; in this section the water has flow velocity of 1.0 m/s. Another section of this pipe has a constricted cross-sectional area of 5 cm2.

Choose the answers that describe an example of acceleration. A. A car follows a gentle curve in the road. B. A batter swings a bat and hits a ball. C. A truck parked on a hill doesn't move all day. D. A runner slows down after finishing a race. E.

A ball is thrown with a velocity of 20 m/s at an angle of 60 degrees above the horizontal. What is the horizontal component of its instantaneous velocity at the the exact top of its trajectory?

You pull on a wagon resting on the sidewalk. What will happen next. A. The wagon does not move because the wagon applies more force to you than you apply to the wagon. B. The wagon moves because you apply more friction to the ground. C.

If someone travels 3000 feet in one second, how far will it travel in 18 minutes

How long did it take to reload a rifle during the 18th 19 century?

Oil flows upward in the wick of a lantern because of the liquid property called A. meniscusity. B. capillarity. C. density. D. viscosity.