You buy a bag of crisps in an airport. After take-off you take the crisps out of your rucksack. Explain in detail why the bag has expanded?

In machines and engines, A. there will be no friction. B. friction increases fuel efficiency. C. the process of overcoming friction uses valuable fuels.

A rectangular garden bed measures 24 feet by 7 feet. A water faucet is located at one corner of the garden bed. A hose will be connected to the water faucet.

Use the work-energy theorem to solve each of these problems. You can use Newton's laws to check your answers. A skier moving at 5.95 m/s encounters a long, rough, horizontal patch of snow having a coefficient of kinetic friction of 0.

A sudden discharge of static electricity during a thunderstorm is called

What is Snell law of refraction

The same constant force, F, is applied to two blocks. The first block has a mass of M and the second block has a mass of 2M. Both blocks are initially at rest and the force acts on each of them for the same period of time, t.

Which of the following is an example of the strong nuclear force acting in an atom? A. A proton repelling a proton B. A neutron attracting a neutron C. A neutron repelling an electron D. An electron attracting a proton

Does the air in our atmosphere have mass?

Your instructor hands you a closed flask partly filled with room-temperature water. When you hold it, the heat transfer between your bare hands and the flask causes the water to boil. Quite impressive! How is this accomplished?

Drag each label to the correct location on the chart. Sort the items based on whether they are simple machines or compound machines. sewing machine pair of tongs fishing rod and reel seesaw wheelbarrow crane Reset Next