We must never touch an electrocuted person before we disconnect the circuit. Why?

why do signs at petrol stations warn people not to use cell phones while filling the petrol in their cars?

A ball on an extremely low-friction, tilted surface will slide downhill without rotating. If the surface is rough, however, the ball will roll. Explain.

Which of the following is a result of reduced levels of red blood cells and elevated levels of white blood cells in the body?

What is the period of a 4.12 m long pendulum?

One reason it's often easy to miss and action reaction pair is because of?

A runner with a mass of 75kg runs 6m/s calculate the kinetic energy stored in the runner

Watt which is a unit of power is equal to

A certain wave has a wavelength of 35 meters and a frequency of 4.0hz. What is the speed of the wave

What is the Force in Newtons exerted by an object with a mass of 15 kg and an Acceleration of 12 m/s2?

A large metallic sphere insulated from ground is charged with an electrostatic generator while a person standing on an insulating stool holds the sphere. why is it safe to do this?