Which particle rarely interacts with matter?

a. proton

b. photon

c. positron

d. neutrino

Mechanical advantage allows you to apply a force over a what distance to what the distance an object moves

If a ball moves along a straight line then it's velocity a) is constant in all cases b) is perpendicular to the straight line c) is along tge straight line d) makes an acute angle with the straight line

A disk rotates freely on a vertical axis with an angular velocity of 50 rpm. An identical disk rotates above it in the same direction about the same axis, but without touching the lower disk, at 20 rpm. The upper disk then drops onto the lower disk.

Which statement is true because of Newton's second law? When the net force on an object decreases, the object's acceleration increases.

How does the height from which you drop the ball relate to the height that the ball bounces back up?

There have been books written about how blood type affects personality or body shape. Knowing that blood type is determined by antigens on erythrocytes, are these claims scientifically valid? O True O False

A stone is dropped from a 80m bridge. How long does it take to fall?

How does an iron nail become a rusty nail

What is the velocity of a bullet train that moves 400 meters west over 3 minutes anad 20 seconds?

While in empty space, an astronaut throws a ball at a velocity of 12 m/s. what will the velocity of the ball be after it has traveled 6 meters?