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A solar collector is placed in direct sunlight where it absorbs energy at the rate of 910 J/s for each square meter of its surface. The emissivity of the solar collector is e = 0.79. What equilibrium temperature does the collector reach? Assume that the only energy loss is due to the emission of radiation.
A uniform sphere and a uniform cylinder with the same mass and radius roll at the same velocity side by side on a level surface without slipping. What will be the percentage difference of the heights
A certain lightbulb filament when hot has a resistance of 205 ?. The potential difference across the filament at a certain instant is standard household voltage, 120 V. What current is flowing through the bulb at that time
A moving 3.10 kg block collides with a horizontal spring whose spring constant is 392 N/m. What is the speed of the block when it hits the spring
A double-slit interference pattern is created by two narrow slits spaced 0.21mm apart. What is the wavelength of the light used in this experiment
The rotor in a certain electric motor is a flat, rectangular coil with 84 turns of wire and dimensions 2.45 cm by 4.04 cm. The rotor rotates in a uniform magnetic field of 0.800 T. Find the peak power output of the motor
A 100-turn square wire coil of area 0.04m2 rotates about a vertical axis at 1500 rev/min, as indicated. The horizontal component of the Earth's magnetic field at the location of the loop is 2.0 × 10-5 T. compute the maximum emf induced in the coil..
A 2.93 kg stone is tied to a thin, light wire wrapped around the outer edge of the uniform 9.83 kg cylindrical pulley, What is the rotational inertia of the pulley
A spacecraft is in orbit around a planet. The radius of the orbit is 3.2 times the radius of the planet (which is R = 71466 km). What is the period of the spacecraft's orbit
Unpolarized light of intensity I0 passes through six successive Polaroid sheets each of whose axis makes a 45? angle with the previous one
Two 100 N forces pull on a 50kg mass. One of the forces pulls to the right and the other pulls 90 degrees from the first force. What is the net acceleration of the mass
The coefficient of performance of a refrigerator is defined as the ratio of heat extracted, At what rate will this refrigerator deliver heat to the room in which it is operating when it is running
A 9.0×10-24-kg particle is vibrating with simple harmonic motion with a period of 1.9×10-5 s, Find the maximum displacement of the particle
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