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The problem can be easily solved using energy formulas. The only force that acts on the departing object is the gravitational force, which is conservative. Therefore the total energy is conserved on the t...

Firstly, we should equate the centripetal force to the force on a moving charge using equations from our formula booklet: (force on a moving charge): F = Bqv(centripetal ...

Geostationary orbits are only possible at one distance from Earth. This is because the very nature of the geostationary orbit requires the satellite to have the same time period as the rotational period o...

They travel at the same speed through air.They travel at the same speed through a vacuum.They are both transverse waves.
Other answers that are accepted: they can be reflected, refracted, diffracted,...

To calculate an object's weight, we have weight = mass * gravitational field strength (W = mg). From this, we see that an object with a greater mass (e.g. a hammer compared with a feather) has a greater w...