3: The brightest stars are called supergiants. Star clusters are rich in stars just off the main sequence called red giants. Main sequence stars are called dwarfs.
An application of the equation for Newton’s law of universal gravitation can be used to determine the gravitational field strength at the 2 kg object’s location.
Solar power is a renewable
energy resource source depends on time of
day and time of year. Its source is from the sun and the batteries that
needs this power does not run out of energy.