What equation can be used to calculate the time of impact when you have the impulse and force applied to an object

This is a group of elements with few valence electrons that conducts heat and electricity.

A 1776 kg car has a speed of 10.3 m/s when it hits a tree. the tree doesn't move and the car comes to rest. find the change in kinetic energy of the car. answer in units of j.

The transfer of electrons occurs because

How does your power output in climbing the stairs compare to the power output of a 100-watt light bulb?

The speedometer on a car actually measures the rotational speed of the axle and converts that to the linear speed of the car, assuming the car's tires diameter is 0.62 m. What is the rotational speed of the axle when the car is traveling 20 m/s?

The metric system and metric conversions are?

Ron bicycles forward with an acceleration of 2.1 m/s2. If he is applying a forward force of 195 N, what is his mass?

Diane swim 5 kilometers against the current in the same amout of time it took her to swim 15 kilometers with the current. The rate of the current was 2 kilometers per hour. How fast would diane swim if there were no current?

A man paddles a canoe in a long, straight section of a river. The canoe moves downstream with constant speed 5 m/s relative to the water. The river has a steady current of 1 m/s relative to the bank. The man's hat falls into the river.

In an atom, almost all of the mass is concentrated in a tiny nucleus because