Air is not a very good conductor of electricity but before a lightning strike, it becomes a better conductor. How does it do this and what is the air called?

What's a good way to determine the net force of something

What equation describes the relationship between energy of light and wavelength

A mover uses a ramp to push a stereo into the moving van. The ramp is 3 meters long and 1.5 meters high. What is the ima of this ramp?

Why are satellites placed into orbit at least 150 km above Earth's surface? to avoid air resistance to match Earth's curvature to create inertia to increase friction

A 47 kg child on a 1.5 m long swing is released 5 from rest when the swing supports make an angle of 22 ◦ with the vertical. the acceleration of gravity is 9.8 m/s 2. if the speed of the child at the lowest position is 1.

The specific heat of copper is 0.093 cal/gC°, and the specific heat of aluminum is 0.22 cal/gC°. The same amount of energy applied to equal masses, say, 50.0 g of copper and aluminum, will result in a. a higher temperature for copper. b.

What year did rudolf virchow contribute to the cell theory

How is an electric current carried?

Calculate the potential energy of a 6kg bowling ball suspended 3m above the surface of the earth

A projectile is fired straight up at a speed of 10 m/s. How long does it take to reach the top of its motion? The acceleration due to gravity is 9.8 m/s^2. Answer in units of s.