You replace a 40 W incandescent lightbulb with an 8 W LED bulb. If you leave your lights on 24 hours a day, how much energy are you saving each day by replacing this bulb?

What is the difference between analog and digital sound transmission?

A 17-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 24 N. Starting from rest, the sled attains a speed of 2.5 m/s in 9.4 m.

Your brothers mass is 55.0kg, and he has a 2.0 kg skateboard what is the combined momentum of your brother and his skateboard if they are going 8.50 m/s

How is mass and inertia related

How much energy is needed to raise a 50kg block up from the ground to a height of 5 meters?

Why do marine west coast climates have much precipitation

Wright true or false: 1. A baseball has more momentum than a tennis ball traveling at the same speed. 2. A light ball has more inertia than a heavy ball 3. The less momentum a bowling ball has, the easier it is for that ball to knock down pins. 4.

The interference of two sound waves of slightly different frequencies produces

8. A force of 80 pounds on a rope is used to pull a box up a ramp inclined at 100 from the horizontal. The rope forms an angle of 330 with the horizontal. How much work is done pulling the box 25 feet along the ramp?

A raindrop has a mass of 5.4 * 10-7 kg and is falling near the surface of the earth. Calculate the magnitude of the gravitational force exerted (a) on the raindrop by the earth and (b) on the earth by the raindrop.