Consider a plane with a velocity relative to the air of 198 m/s in a westerly direction. If the wind has a speed relative to the ground of 56 m/s (in an easterly direction), how long does it take for the plane to travel from one city to another that is due west of the first by...
A car of mass 1396 kg is parked on a very slippery hillside (see figure below). To keep it from sliding down the hill (è = 15°), the owner attaches a cable. If there is no frictional force between the road and the tires, what is the tension in the cable?
A piece of wood with mass m = 2.7 kg is held in a vise sandwiched between two wooden jaws as shown in the figure below. A blow from a hammer drives a nail which exerts a force of 460 N on the wood. If the coefficient of static friction between the wood surfaces is 0.61, what m...
Consider the system of blocks in the figure below, with m2 = 5.0 kg and è = 33°. If the coefficient of static friction between block #1 and the inclined plane is ìS = 0.24, what is the largest mass m1 for which the blocks will remain at rest?
A skier is traveling at a speed of 36.2 m/s when she reaches the base of a frictionless ski hill. This hill makes an angle of 15° with the horizontal. She then coasts up the hill as far as possible. What height (measured vertically above the base of the hill) does she reach?
Barones Italian Restaurant advertises that its customers are much happier than the customers of its main competitors. The claim is based on the results of a customer satisfaction survey Which statement best describes why the graph is misleading? Barones rating look...
Two railroad freight cars with masses 110 Mg and 170Mg approach with equal speeds of 0.330 . They collide, the lighter car rebounding opposite its original direction at 0.270 m/s. Find the velocity of the heavier car after the collision. Assume the original direction of the li...
For the case of freefall, explain how to calculate the total distance traveled and the instantaneous velocity for an object that is dropped from rest by applying the fundamental meaning of acceleration and by using the two equations: Vav+(vf+vi)/2 and d=vav+t. Is this method a...
Amicus nostris aedibus.
THE AGE OF DISCOVERY TO THE AMERICAN EXPERIMENT
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