27. a 70.-kilogram astronaut has a weight of 560
newtons on the surface of planet alpha. what is
the acceleration due to gravity on planet alpha?
a) 0.0 m/s2
b) 8.0 m/s2
c) 9.8 m/s2
d) 80. m/s2

If you mix chlorine lithium in nickel together which two elements would be the most reactive

Define the meaning of the unalienable rights of life liberty and persuit of happiness

The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s