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A wind turbine is initially spinning at a fix angular speed. As the wind's strength gradually increases, the turbine experiences a stable angular acceleration 0.129 rad/s2. After making 2890 rev., its angular speed is 156 rad/s.
(a) Compute the initial angular velocity of the turbine?
(b) Compute how much time elapses while the turbine is speeding up?
A projectile proton with a speed of 350 m/s collides elastically with a targetproton initially at rest. What is the speed of the target proton after the collision
The prong of a tuning fork moves back and forth when it is set into vibration. what are the maximum velocity and the maximum acceleration of the prong
An AC generator is to have a maximum output of 346 V. Each coil has an area of 0.149 m2 and a resistance of 16.6 %u03A9, Find the maximum current induced in the coil
A sled slides down a hill 45 meters high with a slope of 25o. The total mass of the sled plus contents is 247 kg. find the velocity of the sled at the bottom
A certain lightbulb has a tungsten filament with a resistance of 20.5 ? when at 20.0°C and 136 ? when hot. Find the temperature of the hot filament
A 15 cm focal length converging lens is used to magnify small newspaper print 2 mm high. Compute the height of the image for the maximum angular magnification for a normal eye. Suppose the eye focuses at the near point of 25 cm.
An elevator accelerates upward at 1 m/s2. When the elevator is moving upward at 2 m/s, a bolt drops from the ceiling which is 2.5 m above the?
A charged particle m=6g q=-80 c moves in a region of uniform field along a helical path (radius = 3.0 cm, pitch = 9.0 cm) as shown. Illustrate what is the angle among the velocity of the particle and the magnetic field?
You want to photograph a circular diffraction pattern whose central maximum has a diameter of 1.32 cm. How far behind the pinhole should you place the viewing screen
a point mass rotates in a circle with l 1. calculate the magnitude of its angular momentum and the possible
A charged particle moves in a uniform magnetic field of 0.579 T with a period of 3.15 × 10-6 s. Find its charge-to-mass ratio
a mass spectrometer can detect the different isotopes of an ionized element. if zn2 ions are accelerated through a 10
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