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An engine with an output of 300 W has an efficiency of 35.0 %. It works at 13.00 cycles/s. How much work is done in each cycle? How much heat is rejected each cycle?
An underwater scuba diver sees the Sun at an apparent angle of 28.0° from the vertical. What is actual direction of the Sun
q1. a diffraction grating with exactly 1000 lines per centimeter is illuminated by a he-ne laser of wavelength 683
Consider an RC series circuit. You measure R to be 918 ? and C to be 826 nF. What will the voltage across the capacitor be at this frequency
The mass of a gas molecule can be computed from its specific heat at constant volume, cv. Take cv = 0.023 cal/g°C for xenon and calculate the mass of a xenon atom. (kg)
An airplane pilot with a mass of 90.0-kg pulls out of a dive by following the arc of a circle whose radius is 300 m at a constant speed of 190 km/h. find the force exerted on the pilot by the airplane seat
There is an electric field of 113N/C directed along the + x axis. If the string makes an angle 26 degrees with the y axis when the sphere is in stability, what is the charge on the sphere.
Two plates of area 865 cm2 each are separated by a distance 42.1 cm. what is the potential difference between the two plates
an airplane propeller is rotating at 3293 rev/min when one of the blades breaks off at the hub. what is the angular velocity of the rotational motion of the blade about its own center of mass
Ball 1, with a mass of 110g and traveling at 15m/s, collides head on with ball 2, which has a mass of 300g and is initially at rest, What are the final velocities of each ball if the collision is perfectly elastic
Incoming UNPOLARIZED light of intensity 17 LUX passes through a linear polarizer, with its transmission axis oriented vertically. Calculate the final intensity of the light after it has passed through both polarizers
The center of mass of a proton with mass 1.673·10-27 kg and alpha particle with mass 6.645·10-27 kg is moving with a speed of 6.993×105 m/s
how long does it take the engine to lift the crate a vertical distance of 19.8 m? Friction in the system is negligible.
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