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Magnus has reached the finals of a strength competition. In the first round, he has to pull a city bus as far as he can. One end of a rope is attached to the bus, while the other is tied around Magnus\'s 48 inch waist. If a force gauge placed halfway down the rope reads out a constant 662.0 lbs while Magnus pulls the bus a distance of 77.0 inches, how much work does the tension force do on Magnus? The rope is perfectly horizontal during the pull. Express your answer in both foot-pounds (ft-lb) and Newton-meters (N·m).
a 2 kg ball moving at 3 m/s hits a wall and bounces off. immediately after the collision it moves at 3 m/s in the opposite direction. what is the magnitude of the change in the objects momentum
Assume that a cloudy parcel has T = 275 K, wl = 1.5 g/kg. The background atmosphere has T = 274 K, and a relative humidity of 0.6. Assume a total pressure p = 600 hPa. What is the total density of the air in the cloud (due to dry air, water vapor..
An excellent laboratory vacuum has a pressure of 5.00 multiply.gif 10-18 atm, ow many gas molecules are there per cubic centimeter in such a vacuum at 290 K
you are on a boat in a fog and know there are cliffs ahead of you somewhere, but you cannot see them. How far away are the cliffs
The magnitude of the tidal force exerted on an object of mass m and length a is approximately 4GmMa/r3. find the tidal force exerted on your body by the black hole
Two point charges q = 97.0 nC and q = -97.0 nC are in vacuum located on the x axis at - 17.0 cm, calculate the total electric flux through the y-z plane
A luminous point is moving at speed Vo toward a spherical mirror of radius R along its axis. What is the speed at which the image is moving
An object sits on a wheel 0.30 m from its axle. The wheel's rotational speed decreases from 4.0 rad/s to 2.0 rad/s in 5.0 s. determine the wheel's average rotational acceleration
A block of mass m1 = 4.00 kg on a frictionless inclined plane of angle 30.0° is connected by a cord over a massless, What is the magnitude of the tension in the cord
A hovercraft of mass 69.0 kg can move on a horizontal surface, the x-y plane. A single unbalanced force acts on the hovercraft, How much work is done on the hovercraft by the force during this time
A laser beam is incident at an angle of 30.8° to the vertical onto a solution of corn syrup in water. If the beam is refracted to 19.18° to the vertical, what is the index of refraction of the syrup solution
After solving a difficult physics problem, an excited student throws his book straight up. It leaves his hand at 3.7 m/s from 1.5 m above the ground. How much time does it take until the book hits the floor?
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