The atomic number of an element is always the same as

Which statement accurately describes the use of radioactive decay? Technetium-99 is used as a radioactive tracer because it remains in the body for a long time.

A 25.0 kg pickle is accelerated from rest through a distance of 6.0m in 4.0s across a level floor. If the friction force betweet the pickle and the floor is 3.8N, what is the work done to move the object

A steel wire of length 1.5 m and diameter 1 mm is joined to an aluminum wire of identical dimensions to make a composite wire of length 3 m.

Newtons second law is sometimes called law of

Why is carbon and nitrogen important?

A police officer's radar gun emits radio waves at a frequency of 10.7 GHz10.7 GHz. What is the difference in the frequencies reflected back to the radar gun by a car traveling at the 75 mph75 mph speed limit and a car travelling 9 mph9 mph faster?

Function of a battery

When an electric current runs through a wire, a magnetic field is induced ... O Around the wire O Parallel to the wire O Under the wire O Through the wire

A wheel of diameter 8.0 cm has a cord of length 6.0 m wound around its periphery. Starting from rest, the wheel is given a constant angular acceleration of 3.0 rad/s2. How long will it take the cord to unwind?

An extensive continuous mass of ice covering a continental scale is known as