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A car battery has a rating of 170 ampere-hours. This rating is one indication of the total charge that the battery can provide to a circuit before failing. (a) What is the total charge (in coulombs) that this battery can provide? (b) Determine the maximum current that the battery can provide for 42 minutes.
Block A is dropped from a height of 2 m. An identical block B slides frictionlessly down a ramp of height 2 m inclined at 30°. Which block is travelling fastest at the bottom of the ramp
An open container holds ice of mass 0.530 kg at a temperature of -15.7 Celsius . The mass of the container can be ignored. How much time passes before the ice starts to melt
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 9.6 m and, in starting, rotates according to ? = 0.34t^2, find the magnitudes of the astronaut's angular velocity
In a photoelectric effect experiment, a metal sample is illuminated by 10.0 mW of ultraviolet light of wavelength 240 nm. What is the longest wavelength of light that can knock electrons out of this metal
A sinusoidal voltage ?v = (60 V) sin (130t) is applied to a series RLC circuit with L = 90 mH, C = 175 ?F, and R = 34 ?. Whats the maximum current in the circuit
A mass sitting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. 3.6 J of work is required to compress the spring by 0.1 m. Find the value of the mass
A very small call (m = 4 gms) hangs on a thread at an angle of ? = 30o. What is the strength of the electric field
On a nice winter day at the South Pole, the temperature rises to ?63°F. What is the approximate temperature in degrees Celsius
A metal hoop of mass 2.5 kg and with a radius of 0.5 m rolls smoothly without slipping along a floor with a velocity of 2 m/s. What is the maximum vertical height reached by the hoop
A long air-core solenoid of 240 turns has a length 0.40 m andradius 3.0 cm. It carries a current of 4.0A. find the magnetic field in the solenoid
three forces act on a moving object. one force has a magnitude of66.5n and is directed due north. another has a
An archer wishes to shoot an arrow at a target at eye level a distance of 60.0 m away. what angle should the arrow make with the horizontal as it is being shot
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