Gases will diffuse from a region of higher concentration to a region of lower concentration. why don't the gases in the earth's atmosphere escape into the near-vacuum of space?

Which of the following statements is true about isotopes? Question options: The number of protons always equals the number of neutrons in all isotopes. Different isotopes for the same element always have the same number of protons.

One type of bb gun uses a spring-driven plunger to blow the bb from its barrel. (a) calculate the force constant of its plunger's spring if you must compress it 0.150 m to drive the 0.0500-kg plunger to a top speed of 20.0 m/s.

list and discuss how the nature of a rural settlements affect the type and expanse of agricultural activities

If three uncharged styrofoam balls are placed together and agitated so that one gains + 3 C of charge and another gains + 4 C of charge, how much charge must there be on the third one?

A transfer of charge is actually a gross movement of

A ball is held 1.4 meters above the floor When the ball is held motionless above the floor, the ball possesses only what energy

Where is our solar system located in the Milky Way?

A ball encounters no air resistance when thrown into the air with 100 J of kinetic energy, which is transformed to gravitational potential energy at the top of its trajectory. What is its kinetic energy when it returns to its original height

The force exerted by the wind on the sails of a sailboat is 360 N north. The water exerts a force of 170 N east. If the boat (including its crew) has a mass of 310 kg, what are the magnitude and direction of its acceleration?

Explains why gravitational forces decrease in strength as distance increases.