Answer the question below based on the periodic table entry for bromine.

how many neutrons does bromine have?

10
35
45
80

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?

The energy released by a nuclear fusion reaction is produced when

If a hiker that weighs 600 newtons climbs a 50 meter hill, how much gravitational potential energy has the hiker gained?