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A proton has an initial speed of 3.5 105 m/s. (a) What potential difference is required to bring the proton to rest? (b) What potential difference is required to reduce the initial speed of the proton by a factor of 2? (c) What potential difference is required to reduce the initial kinetic energy of the proton by a factor of 2?
An infinitely long solenoid of radius 2.5cm and 100 turns/cm carries an initial current of 1 A. what is the electromotive force induced in the loop
An access door in a ceiling is 0.91m square, has a mass of 11kg, what are the magnitudes of the forces on the catch and the hinge from the door
A sailboat on the ocean has a mast of height 18.5 m. When viewed through a pair of binoculars the mast has an angular size of 0.065 rad. what is the distance between the observer and the sailboat
A dissecting microscope is designed to have a large distance between the object and the objective lens. What is the angular magnification
A small turtle moves at a speed of 186 furlongs per fortnight. Find the speed of the turtle in centimeters per second. Note that 1 furlong=220 yards and 1 fortnight=14 days
A series circuit with R=20ohms, C=330 MuF and L=30 mh, is connected to an AC sourceof amplitude 160v and frequencey of 60 Hz, Whats the power dissipated by the circuit
A ferry can travel at an optimal speed of 8 km/h in stillwater measured relative to the shore. What is the optimal speed of the ferry, relative to the shore, if it moves perpendicular to a 6km/h current?
You're driving down the highway late one night at 18 - {rm m}/{rm s} when a deer steps onto the road 45 -{rm m} in front of you. Your reaction time before stepping on the brakes is 0.50- {rm s}, and the maximum deceleration of your car is 11 {rm m..
The mutual inductance between two coils is .0100H. The current in the first coil changes uniformly from 2.70 A to 5.0 A in .160 sec. find the magnitude of induced current in the second coil
A firecracker explodes in reference frame S at t = 2.0 s . A second firecracker explodes at the same position at t = 5.0s . In reference frame S', What is the position of the two explosions in frame S
illustrate what is the magnitude of the acceleration of the box and hanging mass.
A cylindrical piece of metal 8.50 cm tall with a radius of 1.95 cm has a specific gravity = 4.0, what is the mass of the cylinder in units of grams
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