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A semi-trailer is coasting downhill along a mountain highway when its brakes fail. The driver pulls onto a runaway truck ramp that is inclined at an angle of 20.0 degree above the horizontal. The semi-trailer coasts to a stop after traveling 190 meter along the ramp. Evaluate what was the truck initial speed? Ignore air resistance and friction.
A uniform beam of mass M and length L is pinned to the wall and supported in equilibrium by a thin cable attached a distance d from the free end of the beam. Calculate the force exerted by the pin on the beam in vector form
The rear window of a van is coated with a layer of ice at0oC. The density of the ice is 917kg/m3. The driver of the van turns on therear-window defroster, which operates at 12V and 23A. Thedefroster directly heats an area of 0.52m2 of therear windo..
A textbook of mass 1.96 kg rests on a frictionless, horizontal surface. What is the moment of inertia of the pulley about its rotation axis
When a nucleus of 235U undergoes fission, it breaks into two smaller, more tightly bound fragments. Calculate the binding energy per nucleon for 235U
a current of 0.77 a flows through a copper wire 0.47 mm in diameter when it is connected to a potential difference of
Suppose that a person in Tilted Land throws a ball straight up at 20 m/s. Where does the ball hit the ground?
A massless spring is hanging vertically and unloaded, from the ceiling. A mass is attached to the bottom end and released. How close to its final resting position is the mass after 1 second, given that it finally comes to rest 0.5 meters below the po..
A Mercedes-Benz 300SL (m = 1700 kg) is parked on a road that rises 20° above the horizontal. What is the magnitude of the normal force
What is total distance the bird travels by trains collide
q1. a roller coaster 305 kg moves from a 5.00 m above the ground to b 23.0 m above the ground two non conservative
What are the possible value for of n and m if a) l = 1, b) l = 4, and c) l = 0 ? compute the normalization constant for the wave function
A heater runs on an AC voltage of 120 V and draws a power of 26 W. If this heater were run instead on a DC voltage of 70 V, how much current would flow through the heater? Hint: The heater can be modeled as a resistor.
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