Suppose it takes at least 5 people to push a very heavy box up a 400-cm ramp. If there are actually 6 people there to help push, which ramp(s) could they use to get the box moved? (Assume no friction)

A 200-cm ramp
B. 400-cm ramp
C. 800-cm ramp
D. Either the 400-cm ramp or the 800-cm ramp would work.

Which is the most accurate name for the covalent compound p2o3?

Ajoint produces movement when its angle decreases. which type of movement is it?

Which of the following statements are evidence that gases do not always behave ideally? check all that apply.? a. co2 gas becomes dry ice (solid co2) at 1 atm and –78.5 °c. b. when two gases are mixed, they follow dalton\'s law of partial pressures. c. at 4 k and 1 atm, helium is a liquid. d. it is impossible to compress a gas enough so that it takes up no volume.