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During the investigation of a traffic accident, police find skid marks 90.0 m long. They determine the coefficient of friction between the car's tires and the roadway to be 0.500 for the prevailing conditions.
Estimate the speed of the car when the brakes were applied.
Suppose that in the same Atwood setup another string is attached to the bottom of m1 and a constant force f is applied, retarding the upward motion of m1. If m1 = 4.80 kg and m2 = 9.60 kg, what value of f will reduce the acceleration of the system..
Monochromatic light (lambda = 670 nm) is incident on a single slit and forms a diffraction patter on a screen 95 cm away. what is the separation between the first-order minima
A camera with a 70.0-mm lens can focus on objects located from 1.40 m to an infinite distance away by adjusting the distance between the lens and the film. how far does the lens move with respect to the film
A 3.83 ohm resistor, a 7.53 ohm resistor, and a 9.02 ohm resistor are connected in series with a 15.0 V battery. What is the current in each resistor
A 3.00 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 2.20 m/s2, find out the force exerted by the rope on bucket of water.
In a tungsten atom, what is the kinetic energy of an L-shell electron ejected by a photon that was created during the M-K shell transition of the atom?
the potential difference between two parallel plates is 590 v. an alpha particle with mass of 6.64 10-27 kg and charge
An AC voltage of the form ?v = 100 sin 1 000t, where ?v is in volts and t is in seconds, is applied to a series RLC circuit. Find the average power delivered to the circuit
A small coil with N_2 loops each of area A_2, is placed inside a long solenoid, near its center. Determine the mutual inductance as a function of theta, the angle of the plane between a small coil and the axis of the solenoid
A teeter-totter is made of a 3.200 m long plank with a mass of 60.0 kg, what mass must be placed at the left end so that the teeter-totter is balanced
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 68.80 diopters, If the writing on the blackboard is 5.70 cm high, what is the size of the image on her retina
A very tall flagpole, temporarily charged uniformly by lightning, What is the linear density of the charge on the flagpole
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