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When its coil rotates at a frequency of 258 Hz, a certain generator has a peak emf of 72 V.
What is the peak emf of the generator when its coil rotates at a frequency of 40 Hz?
A partcile is moving along the x-axis has a position given by x=(24t-2.0t^3)m, where t is measured in seconds. What is the magnitude of the acceleration of the particle at the instant when its velocity is zero?
determine the upward force on an airplane's wing if the average flow speed of air is 192 m/s above the wing and 164 m/s below the wing. The density of the air is 1.5 kg/m3 and the area of each wing surface is 26 m2.
A certain cable car in San Francisco can stop in 10s while travelling at maximum speed. On one occasion, driver sees a dog a distance d m in front of the car and slams on the brakes instantly.
In the equation, x is measured in meters and t in seconds. What is the maximum energy stored in the spring during an oscillation
When you irradiate a metal with light of wavelength 425 nm in an investigation of the photoelectric effect, Find the work function of the irradiated metal
When the distance is 0.20m the tension is 628 N, horizontal pivot force is 581 N and the vertical pivot force is 839N. What is the mass of the bell
A 76 W light bulb with a resistance of 178 ? is connected to a power supply with a 117 V, What is the internal resistance of the power supply
Consider the Earth and a cloud layer 600 m above the planet to be the plates of a parallel-plate capacitor. what is the maximum charge the cloud can hold
A small block of mass 1.21 kg slides without friction on a horizontal table. Initially it moves in a circle of radius R0 = 0.62 m with a speed 1.8 m/s. What is the torque placed on the mass by the string
A massless rod of length 1m has a 2.00 kg mass attached to one end and a 3 kg mass attached to the other. The system rotates about a fixed axis perpendicular to the rod that passes through the rod 30.0 cm from the end with the 3kg mass attached. The ..
A slingshot consists of a rubber strap attached to a y-shaped frame, with a small pouch at the center of the strap to hold a rock or other small projectile. FIND the potential energy of the system prior to release
A bullet of mass 22 g is fired horizontally from a gun with a velocity of 1150 m/s into a wooden block of mass 8.0 kg sitting on a horizontal table
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