physics
a 70 kg box is pulled by a rope that exerts a 400 N force at angle of 30 degrees to the horizontal the leading coefficient of kinetic friction id 0.50. draw a diagram. draw a free body diagram . find the acceleration of the box.
physics
A freight train has a mass of 1.5 x 10^7 kg . If the locomotive can exert a constant pull of 7.5 X 10^5 N, how long does it take to increase the speed of the train from rest to 80 km /h?
economics
why does islam have more oil problems than saudi arabia
Math
Gary and Linda are at the movies. Gary has $9 to spend on snacks and Linda has $10 to spend on snacks. Gary buys nachos. Linda does not buy any snacks at the movies. If linda has $4.55 more than gary after he buys nachos, how much did gary pay for the nachos?
AED/200
Identify the different types of statistics, graphs, and illustrations that are appropriate for NCLB
Physics
sofa wont fit through the door so i lift the 86.1 kg sofa 17.2 m from the street. how much time will the lift take?
Physics
a 65 kg male skater pushes a 45 kg female skater causing her to accelerate at a rate of 2.0 ms ^2 at what rate will the male skater accelerate? What is the rate of his acceleration?
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