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A disc starts at rest and takes 10 seconds to "spin up" to an angular velocity of 18 rad/s, when a torque of 0.5 Nm is applied to it. Determine the moment of inertia of the disk.
A 150 g mass hangs from a fishing line. If it falls and accelerates at 4.0 m/s^2, what is the tension in the fishing line?
Another laser amplifier gives an output of 5I0 when it receives input intensity I0 tuned to w0, the centre frequency of the laser transition. When the input radiation istuned to nearby angular frequency w1
A thin uniform rod (length = 1.29 m, mass = 1.95 kg) is pivoted about a horizontal frictionless pin through one of its ends. What is the angular acceleration of the rod at the instant it is released
An asteroid, whose mass is 1.70×10-4 times the mass of Earth, Calculate the period of revolution of the asteroid in years
three forces are applied to a bracket as shown. determine the range of values of alpha for which the magnitude of the resultant forces acting on a is less than 600n
Light of wavelength 619 nm is incident normally on a diffraction grating. Two adjacent maxima occur at angles given by sin ? = 0.20 and sin ? = 0.32. The fourth-order maxima are missing, What is the separation between adjacent slits
A ballerina spins initially at 1.5 revolutions/second when her arms are extended. Determine her initial moment of inertia
The nucleus of an atom has a radius of about 5.1×10-15 m. The electron is normally at a distance of about 6.2×10-11 m from the nucleus, Find the volume of the nucleus
Two particles of masses m and 3m are moving toward each other along the x-axis with the same speed v. Determine the final speed of the heavier object
A parallel-plate capacitor with C = 13 mu or micro FF is charged so as to contain 1.1 J of energy, what is the energy density (the energy per unit volume)
Two resistors have resistances R(smaller) and R(larger), where R(smaller)
A nearsighted patient's far point is 0.723 m from her eyes. What is the distance between her eyes and the glasses
The meter detects the reflected sound waves and measures a beat frequency of .30X10^5Hz. Determine the speed of the baseball
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