Why is plastic and foam a good material for ear defenders?

What is a consumer?

A. 5 kg air puck moves to the right at 3 m/s, colliding with a 1.5kg air puck that is moving to the left at 1.5 m/s. 1. Determine the direction and speed of the pucks' motion if they stick to each other after the collision. 2.

Imagine that you pushed a box, applying a force of 60 newtons, over a distance of 4 meters. How much would you have done?

What is the momentum of a 2-kg toy truck that moves at 10 m/s

An object traveling at a 5.0 m/s east has a mass of 4.0 kg. what is the magnitude of the object's momentum?

Most geologists believe that the dinosaurs became extinct 65 million years ago when a large comet or asteroid struck the earth, throwing up so much dust that the sun was blocked out for a period of many months. A.

If you drop a silver dollar off a building and it hits the ground in 10 seconds, how fast was the coin going just before it hit?

What is the weight of an with a mass of 32kg

The index of refraction of silicate flint glass for red light is 1.620 and for violet light is 1.660. A beam of white light in this glass strikes the glass-air interface at a 25.50∘ angle of incidence and refracts out into the air.

The locations of the major pressure and wind systems on the earth: