The gravitational field strength (g) at the surface of Mars is 3.7N kg-1 The radius (r) of Mars is 3.4x10(6)m

Use Newton’s universal law of gravitation to calculate the mass of Mars where G=6.67x10(-11)m3 kg-1 s-2

Assuming weightless pulleys and 100% efficiency, what is the minimum input force required to lift a 120 n weight using a single fixed pulley?

Matt is driving down 7th street. he drives 150 meters in 18 sec. assuming he doesn’t slow down or speed up, what is his speed?

What happens when chlorine reacts with bromine? a. electrons move from the chlorine atoms to the bromine atoms. b. electrons move from the bromine atoms to the chlorine atoms. c. electrons are shared between the chlorine atoms and the bromine atoms. d. electrons become delocalized among the atoms.