Boyle’s law states that the volume of a gas is inversely proportional to its pressure if the
a. temperature and number of particles are constant.
b. temperature reaches absolute zero.
c. number of particles decreases.
d. temperature and number of particles are doubled.

Why do astronauts in the space shuttle weigh less?

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.