discharge occurs when oppositely charged objects get close enough for the air between them to become electrically charged.

Why don't we feel pressure exerted by atmosphere?

Five metal samples, with equal masses, are heated to 200 degrees Celcius. Each solid is dropped into a beaker containing 200 ml 15 degrees Celcius water. Which metal will raise the temperature of the water the most?

Which has more kinetic energy car a with a mass of 50kg moving 2m/s or car b with a mass of 75kg moving 2m/s

Why does your hand feel cool if you spill some alcohol on it?

An Archer shoots an arrow horizontally at 250 feet per second. The bullseye on the target and the arrow are initially at the same height.

Why is the use of an international system of measurement important for science?

Would u do more lifting putting a box on the table or putting it on a shelf

Tia needs to produce a solenoid that has an inductance of 2.51 μ H. She constructs the solenoid by uniformly winding 1.19 m of thin wire around a tube. How long, in centimeters, should the tube be?

A 1,492.3-kg airplane travels down the runway. Each of its four engines provides a force of 1,447.5 N. Find the acceleration of the airplane, in m/s2. (Ignore friction.)

A 0.42 kg football is thrown with a velocity of 17 m/s to the right. A stationary receiver catches the ball and brings it to rest in 0.017 S. What is the force exerted on the receiver? Answer in units of N