Which travels faster in helium, copper or lemonade?

Calculate the mass of the object. Use. Matthew rolls a bowling ball with a speed of 2 meters/second. The ball hits the pins with 1.8 joules of kinetic energy. The mass of the bowling ball is kilograms.

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A train travels 72 kilometers in 1 hours, and then 64 kilometers in 1 hours. What is its average speed?

A force of 200 N is applied at piston A, which has a surface area of 4 cm 2. The pressure is transferred through oil to piston B which applies a force of 3000 N. Calculate the surface area of piston B.

A 20N force is directed to the right and a 14 Newton force is directed to the left and both act on a 3 kg mass. Starting from rest, how far does the object move in the first second

The gravity of mercury is 3.7 n/kg. Find the mass of an astronaut who weights 241 Newton's on mercury

Why does oxygen have a lower ionization energy than nitrogen?

Traditional Indonesian music uses an ensemble called a gamelan that is based on tuned percussion instruments somewhat like gongs. In Bali, the gongs are often grouped in pairs that are slightly out of tune with each other.

An instrument used to detect a static electric charge is called an ammeter. a. true b. false

A heat engine has a cold reservoir of 250°C and a hot reservoir of 715°C. What is the efficienvy of the engine?