How many neutrons are in Cesium-130

A tennis ball whose initial speed is 2.0 m/s rolls along a floor for 5.0 m before coming to a stop. Find the coefficient of rolling friction.

Determine the specific heat of iron if 6.1 j of energy are needed to warm 1.50 g of iron from 20.0◦c to 29.0◦c?

While riding on an elevator descending with a constant speed of 2.7 m/s, you accidentally drop a book from under your arm. How long does it take for the book to reach the elevator floor, 1.0 m below your arm?

An inclined plane of angle θ has a spring of force constant k fastened securely at the bottom so that the spring is parallel to the surface. A block of mass m is placed on the plane at a distance d from the spring.

The speed of light is closest to 300,000

All the interconnected paths of energy flowing from species to species in an ecosystem is called a a. trophic level. b. food chain. c. detrital food web. d. food web.

A firefighting crew uses a water cannon that shoots water at 25.0m/s at a fixed angle of 53.0 degrees above the horizontal. The firefighters want to direct the water at a blaze that is 10.0 m above ground level.

Sulfur oxides (SO2) are responsible for A) global warming. B) greenhouse gases. C) producing acid rain. D) destroying the ozone layer.

During a collision between a photon and an electron, there is conservation of

To produce change in motion, a force must be a (n) A) balanced force B) unbalanced force C) frictional force D) gravitational force