Name 3 devices or inventions which are designed to increase friction

A bag of sugar weighs 2 kg on earth. What should it weigh in newtons on the moon, where the free-fall acceleration is 1/6 that on earth? Repeat for Jupiter, where g is 2.64 times that on Earth.

The space shuttle releases a satellite into a circular orbit 710 km above the Earth. How fast must the shuttle be moving (relative to Earth) when the release occurs?

What is hydrocephalus?

A 30,000kg train moves at 45m/s How how much kinetic energy with the train have? A. 30,375,000J B. 30,375J C. 60,750,000J D. 675,000J

Un autobuz merge prin oras patru statii drumul total fiind de 4 km. Prima statie reprezinta doua zecimi (2/10) din drumul total, a doua statie mai mica cu 3 hm decat prima, a treia estr cu 2 dam mai mult de cat jum din restul drumului.

Calculate the energy released as heat when 51.60 g Cu 2 O (s) undergo oxidation at constant pressure.

During summer vacation, Juan traveled a total distance of 400 miles. His trip took 8 hours. What was the average speed during his trip?

Where Pabs is absolute pressurePg, is gauge pressure, and Patm is atmospheric pressure. For example, if your tire gauge reads 34 lb/incz (pounds per square inch), then the absolute pressure is ...

The tip of a triangle is held 12.0 cm above the surface of a flat pool of water. A submerged swimmer in the pool sees the tip of the triangle at what distance above the water? Let the indices of refraction nwater = 1.33 and nair = 1.00.

What is a lever used for?