A10 kg ball strikes a wall with a velocity of 3 m/s to the left. the ball bounces off with a velocity of 3 m/s to the right. if the ball is in contact with the wall for 0.22 s. what is the constant force (in newtons) exerted on the ball by the wall during the impact? report your answer as a positive number.

The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?

How do we measure or think of speed in the united states?

What happens to an isotope during radioactive decay?