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A 50 kg solid disk (I = ½ mr2) with a radius of 0.3m starts from rest and rotates about an axis through its center. It takes 30 rotations to reach an angular velocity of 10 rad/s.
What is the disk's angular acceleration?
How far is the second dark fringe to the right of the central bright fringe in the double-slit interference pattern seen on a screen 4 m from the slits? The slits are separated by 0.2 mm and are illuminated with monochromatic light of wavelength 597n..
Use approximate calculations assuming constant current during the output pulse. Calculate the ampere-hour rating of the battery so it lasts for five years.
A block of mass M, at rest on a horizontal fictionless table, is attached to a rigid support by a spring of constant K. obtain the amplitude of the resulting simple harmonic motion
question a 2.0 kg projectile if fired with initial velocity components vox 30 ms and voy 40 ms from a point on the
A 0.250 kg ball attached to a string s being swung in a vertical circle, What is the minimum speed at the top of the circle to keep the string from going slack
A 58-g handball moving with a speed of 5.3 m/s strikes the wall at an angle of 35° with the normal, and then bounces off with the same speed at the same angle with the normal. It is in contact with the wall for 2.0 ms. What is the average force exert..
A rocket, which is in deep space and initially at rest relative to an inertial reference frame, has a mass of 84.1 x 105 kg, of which 6.63 x 105 kg is fuel. What is the rocket's thrust
An electron has the same wavelength as the most intense light from a blackbody at a temperature of 1450 K. Determine the speed of this electron
An object is thrown vertically upward with an initial velocity of 14.7m/s, how long does it take for the object to be 9.8m from its initial position
The pitch of the sound from a race car engine drops the musical interval of a third when it passes the spectators. How fast is the race car moving
A beam of light originates from point P in a 3 mm thick glass block. It undergoes total internal reflection at point Q and strikes point R a distance d=5.4mm. If the glass block is in air, what is the glass' index of refraction?
an empty oven with a volume of 0.148m3 and a temperature of 306k is turned on. the oven is vented so that the air
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