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A wind turbine is initially spinning at fix angular speed. As the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.162 rad/s2. After making 2550 revolutions, its angular speed is 131 rad/s.
(a) Evaluate the initial angular velocity of the turbine?
(b) Evaluate how much time elapses while turbine is speeding up?
A photon with a wavelength of 3.90×10?13 m strikes a deuteron, splitting it into a proton and a neutron. Calculate the kinetic energy released in this interaction
A 5.60 uF parallel-plate air capacitor has a plate separation of 4.00 mm and is charged to a potential difference of 500V . Calculate the energy density in the region between the plates, in units of J/m^3
A pendulum consists of a 4.0 kg stone swinging on a 4.4 m string of negligible mass. The stone has a speed of 7.5 m/s when it passes its lowest point. what is the total mechanical energy of the system
A 2,200-kg pile driver is used to drive a steel I-beam into the ground. calculate the average force the beam exerts on the pile driver
a vessel at rest explodes breaking into three pieces. two pieceshaving equal mass fly off perpendicular to one another
The leg and cast weigh 177N (w1). Find out the weight w2 and the angle α required so that no force is exerted on the hip joint by the leg plus cast.
What is Newtons Version of Keplers Third Law
question a 5.0- strand of dna carries charge per of length. treating it as a charged line whats the electric field
It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at this time. Find out the angular speed of the wheel at t = 2.30 s.
A 7.50 nC charge is located 1.80 m from a 4.20 nC charge. (a)Find the magnitude of the electric force that one particle exerts on the other. (b) Is the force attractive or repulsive?
A 2 kg mass is placed at rest against a spring of spring constant 5 N/m, which is compressed by 10 cm from its equilibrium position. compute the amount of potential energy stored in the spring
In a Young's double-slit experiment, the seventh dark fringe islocated 0.027 m to the side of thecentral bright finge on a flat screen, What is the wavelength of the light being used
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