What is the weight of an object (mass = 60 kilograms) on mars, where the acceleration due to gravity is 3.75 meters/second2? . select one of the options below as your . a. 1.6 newtons. b. 16 newtons. c. 22.5 newtons. d. 225 newtons. e. 2250 newtons.

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

On mars a rock falls an unknown vertical distance from a resting position and lands in a crater. if it takes the rock 2.5 seconds to fall, how high is the cliff the rock fell from? mars' surface gravity is 3.8 m/s2. a. 9.5 m b. 11.9 m c. 15.2 m d. 23.8 m

What is the magnitude of the gravitational force acting on the earth due to the sun?