The gravitational force of a star on an orbiting planet 1 is F 1 . Planet 2, which is twice as massive as planet 1 and orbits at twice the distance from the star, experiences gravitational force F 2 . What is the ration of F 2 /F 1 ? Ignore the gravitational force between the two planes

Ithink it’s: light bounce if off a mirror

The upward force acting on the wing of a airplane in flight is known as the "lift" force. (d)

Answer: 1.4 seconds which is the third optionexplanation: current is defined as the flow of charge per timetherefore, the equation that relates current, charge and time can be expressed as follows: i = δq / δtwhere: i is the current given = 1.8 ampereδq is the charge given = 2.5 coulombδt is the time required for the flow of the given charges to give the 1.8 ampere.substitute with the givens in the above equation to get the time as follows: 1.8 = 2.5 / δtδt = 2.5 / 1.8 = 1.38888 which is approximately 1.4 secondshope this was !