Which type of process happens without gain or loss of heat

What is the most common measuring system in the world?

H20 (water) is an example of a __, as it is made up of two elements.

Why do satellites not fall to the Earth?

A 60 g ball of clay is thrown horizontally at 40 m/s toward a 1.5 kg block sitting at rest on a frictionless surface. the clay hits and sticks to the block. part a what is the speed of the block and clay right after the collision?

Which describes what happens when fuel is ignited in a heat engine? A. Chemical energy is converted into thermal energy B. Thermal energy is converted into solar energy. C. Solar energy is converted into chemical energy D.

Is sugarcane renewable or nonrenwable and why

during a crash, an airbag inflates to stop a dummys forward motion. the dummy mass is 75 kg. if the net force is on the dummy is 825 N toward the rear of the car, what is the dumys deceleration

A bike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. What is her acceleration? Select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2

What is the center of atom called?

Helium is considered a noble gas because it has a _blank___ valence electron shell