Who else gives themselves 5 stars?

The ozone hole appears in antarctica during

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

A15,000 kg rocket traveling at +230 m/s turns on its engines. over a 6.0 s period it burns 1,000 kg of fuel. an observer on the ground measures the velocity of the expelled gases to be −1,200 m/s.