An element's atomic number is 39. How many protons would an atom of this element have?

When performing a Phase 4 workout, how many repetitions per resistance training exercise should be performed?

Calculate the work done by an applied force of 71.5 N on a crate for the following. (Include the sign of the value in your answer.) (a) The force is exerted horizontally while pushing the crate 4.30 m.

Material that allows heat to flow easily

A car accelerate from a stop to 27 m/sec in 5 seconds. What was the car's acceleration?

What is the prerequisite for gravity to act?

In what ways does a river carry its load?

What is a unit of mass?

Which is not an era of the Phanerozoic eon

Newton's third law states that when an object exerts a force on another object, the second object exerts an equal but opposite force on the first object. Which of the following shows an example of this? a.

A car is moving 14.4 m/s when it hits the brakes. It slow from 78.8 m, which take 9.92s. It then accelerates at 1.83 m/s 2 for 4.50 s. What is the total displacement?