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A 1.50 x 103 kilogram car starts from rest and accelerates uniformly to 16.0 m/s in 11.5 second. Suppose that air resistance remains constant at 400 N during this time.
(a) Compute the average power developed by the engine. (b) Compute the instantaneous power output of the engine at t= 11.5 second, just before the car stops accelerating.
An oil tanker has collided with a smaller vessel, resulting in an oil spill in a large, calm-water bay of the ocean. what is the largest total area of the oil slick
A crate with a weight of 50N rests on a horizontal surface. A person pulls horizontally on it with a force of 10N and it does not move. To start it moving, a second person pulls vertically upward on the crate. If the coefficient of static friction is..
Spider-Man attempts to save passengers on an out-of-control train using his web-slinging power. If the train (m = 137,000 kg) was at first travelling at 33m/s and he needs to stop it within 46 s, what is the magnitude of force he must provide.
A 100N box initially at rest is pulled by a horizontal rope on a horizontal table the coefficients of kinetic, What is the friction force on the box if the pull is 35N and 75N
A wire is 0.79 m long and 0.77 mm2 in cross-sectional area. It carries a current of 4.1 A when a 2.0 V potential difference is applied between its ends
an automobile traveling 95 kmh ovetakes a 1.10 km long train traveling in same direction. the train speed is 75 kmh.
the plates of a spherical capacitor have radii 37.0 mm and 49.0 mm.a calculate the capacitance.b what must be the plate
while unloading furniture, a worker slides a heavy box down the ramp on the rope. find the mass of the box
A uniformly charged conducting sphere of 1.5 m diameter has a surface charge density of 11 µC/m2. Find the net charge in coulombs on the sphere
a 15.0 k ohms resistor is connected in series with a capacitor and a 24.0v battery. assume the switch is closed at time
A fan turns at a rate of 900 rpm (i.e., rev/min). Find the angular speed of any point on one of the fan blades
a moving 4.10 kg block collides with a horizontal spring whose spring constant is 260 nm. the block compresses the
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