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A sphere of radius 10m and a mass of 5kg is rotated from restto achieve a rotational speed of 20 rad/sec in 10 secs?
What is the angular acceleration of this sphere?
Through how many revolutions does it make in these 10 secs?
A ball is thrown straight up in the presence of gravity and quadratic air resistance (frictional force = -cv^2v~). Find the velocity as a function of height
A cannon ball is fired from the top of a cliff that is 125 m above the ground. the cannon ball is launched with a velocity of 29.4 m/s at 48 degrees above the horizontal. A) What is the maximum height the cannon ball attains above the ground? B) How ..
question1a block of mass m1 4 kg moves from rest under the influence of a varying force fx 4x 38 where f is in
An electron is accelerated through a potential difference of 3.00 V before colliding with a metal target. What minimum-wavelength light can such an electron emit
A conducting sphere of radius 23.0 cm has an unknown positivecharge distributed uniformly over its surface. The strength of theelectric field at a point 0.480 m from the centerof the sphere is 12.0 N/C. What is the charge?
For the known values of the Earth such that RE = 6.37×106m and ME = 5.97×1024kg, find the height that the satellite is orbiting above the surface
High speed stroboscopic photographs show that the head of a 181 g golf club is traveling at 55.4 m/s, Find the speed of the golf ball just after impact
At a certain distance from the center of the Earth, a 5.0-{\rm kg} object has a weight of 3.5N. By what factor does its initial acceleration change
In a velocity selector, the uniform magnetic field of 1.6 T is produced by a large magnet. What voltage should be applied across the plates
The tungsten filament of an incandescent lightbulb has a temperature of approximately 3000 K. The emissivity of tungsten is approximately 1/3, and you may assume that it is independent of wavelength.
A total charge of 1.96 μC is distributed uniformly over anentire region, giving a charge per volume of 245μC/m3. A Gaussian surface encloses 1.23μC of that charge. What is the volume of that entireregion?
A 4.6-{\rm Hz} wave with an amplitude of 20cm and a wavelength of 30cm travels along a stretched horizontal string. How far does a given peak on the wave travel in a time interval of 0.55s ? The answer is dpeak = .76m. How would your answer to par..
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