When a block of 8 kg is pushed horizontally with a force of 100N horizontally, it accelerates at a rate of 3m/s
a) What is the weight of the block?
b) What is the magnitude of the normal force acting on the block?
c) What is the magnitude of the friction force?
d) is the friction force kinetic or static?
e) What is the coefficient of (kinetic or static depending on your answer from (d)) friction
between the box and the floor?

Alivestock company reports that the mean weight of a group of young steers is 1100 pounds with a standard deviation of 93 pounds. based on the model n(1100,93) for the weights of steers, what percent of steers weigh a) over 1050 pounds? b) under 1300 pounds? c) between 1150 and 1250 pounds?

After the near spacecraft passed mathilde, on several occasions rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid eros, the final destination for the mission. after getting close to eros, further small adjustments made the momentum just right to give a circular orbit of radius 45 km (45 × 10^3 m) around the asteroid. so much propellant had been used that the final mass of the spacecraft while in circular orbit around eros was only 545 kg. the spacecraft took 1.04 days to make one complete circular orbit around eros. calculate what the mass of eros must be.

What are the three ways that an object can accelerate