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A photon having E = 25.7 keV energy scatters from a free electron inside a metal. What is the maximum energy the electron can gain from the photon?
A step-down transformer (turns ratio = 1:6) is used with an electric train to reduce the voltage from the wall receptacle to a value needed to operate the train. What is the current in the primary coil
Unpolarized light of intensity 1.1 W/m^2 is incident on a polarizer. what is the intensity of the light that leaves the analyzer
Two point charges lie on the x-axis: 1.80uC at x=1.15m, Find the place(s) where the electric field is zero
A current of 7.93 A in a solenoid of length 14.2 cm creates a 0.327-T magnetic field at the center of the solenoid. How many turns does this solenoid contain
A reflecting telescope has a main mirror with fM = 620 mm. If an eyepiece with a magnification of 15 is used, what is the total magnification of the telescope
A little league player balances a bat 57.0 cm from one end. She then hangs her 0.540-kg batting helmet on that end of the bat, Determine the mass of the bat
Over a time interval of 1.92 years, the velocity of a planet orbiting a distant star reverses direction, changing from +22.2 km/s to -20.5 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) du..
A white billiard ball with mass mw = 1.57 kg is moving directly to the right with a speed of v = 3.42 m/s, What is the final speed of the black ball
a brick weighing 30 N fall from a height of 15 m and sinks .7 m into the ground. What is the average force on the rock due to the ground as it sinks into the ground
A 2.8 kg block slides along a frictionless horizontal with a speed of 5.5 m/s. After sliding a distance of 8m, the block makes a smooth transition to a frictionless ramp inclined at an angle of 43 degrees to the horizontal. The acceleration of gravit..
A small grinding wheel has a moment of inertia of 4.0×10-5 kg m^2. What net torque must be applied to the wheel for its angular acceleration to be 160 rad s^2.
An object with a net charge of 22 µC is placed in a uniform electric field of 600 N/C, directed vertically. What is the mass of object if it floats in this electric field.
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