A light source 1 m away from an opening which is 1 square meter will cover 4 m2 when it is 2-m away from the opening. How many square meters will it cover
when it is 3 m away? What will be the intensity of the light when it is 3 n away ?

Could someone . i have tried to solve myself but my calculation is off

Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.

According to newton’s law of universal gravitation, which statements are true? as we move to higher altitudes, the force of gravity on us decreases. as we move to higher altitudes, the force of gravity on us increases. as we gain mass, the force of gravity on us decreases. as we gain mass, the force of gravity on us increases. as we move faster, the force of gravity on us increases.