A fireman is sliding down a fire pole. As he speeds up, he tightens his grip on the pole, thus increasing the vertically upward contact force that the pole exerts on the fireman. When the force on his hands equals the downward gravitational force from the Earth on him, what happens to the fireman

What are atoms of the same element with varying number of neutrons

Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.