24. Calculate the force of gravity between Earth (mass = 6.0 x 1024 kg) and the moon
Earth
moon distance is 3.8 x 108 m.

the first american roller coaster was the mauch chunk switchback railway, built in the mountains of pennsylvania in the mid-1800s. the track, originally built to send coal to a railway, was reconfigured as a "scenic tour."

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.