Wich of the following is a contact force?

a. - friction

b.-magnetism

c.-gravity

d.-electricity

The atlantic torpedo is a large electric fish capable of generating a voltage of 220V between its tail and its head. This drives a pulse of current of 15A lasting for a time of 2.0ms. The fish produces 200 pulses per second.

Which of the following best describes philosophy

if a car engine does 600,000 J of work over a 500m distance and the mass of the car is 250Kg then what is the final velocity of the car?

It takes 11.2 kJ of energy to raise the temperature of 145 g of benzene from 23.0°C to 68.0°C. What is the specific heat of benzene?

The brightness of a star is determined A) only by its distance from earth B) only by its size C) by both is size and distance from earth D) by its location in the night star

Would iron and carbon from metallic bonds

How many joules does a shortbread cookie have

What happens to frequency when an object is moving towards you?

What is the mid-atlantic ridge? how many miles does it stretch?

A basketball player jumps straight up for a ball. To do this, he lowers his body 0.260 m and then accelerates through this distance by forcefully straightening his legs. This player leaves the floor with a vertical velocity sufficient to carry him 0.