help pls If a 1000 kg car goes from a speed of 6.5 m/s to stop in 3 seconds, what is the force acting on the car

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?

An object's buoyant force and weight mean the same thing. a. trueb. false

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?