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Vector A has a magnitude of 6.00 units, vector has a magnitude of 8.00 units, and the dot product A·B has a value of 39. What is the angle between the directions of A and B ?
A potter's wheel ( a solid uniform disk) of mass 6.1 kg and radius 0.65 m spins about its central axis. Calculate the moment of inertia of the system
Because of dissipative forces, the amplitude of an oscillator decreases 5.00% in 10 cycles. By what percentage does its energy decrease in ten cycles
A spacecraft is traveling with a velocity of v0x = 4330 m/s along the +x direction. Two engines are turned on for a time of 728 s. One engine gives the spacecraft an acceleration in the +x direction of ax = 1.74 m/s2.
A uniform disk with a mass of 0.767kg and radius 15.1cm is rotating on frictionless bearings with an angular speed of 22.4hz when jill drops a 0.174kg clod of clay on a point 8.78cm from the center of the disk, where it sticks. What is the new angula..
A generator of frequency 2500 Hzdrives a series RLC circuit with an emf amplitude of 120V. The resistance is 3.1 , the capacitance is1.60 µF, What is the current amplitude
The acceleration due to gravity at the surface of a planet is 18 m/s2. find the speed of the satellite to maintain this stable orbit
Two forces are acting on an object. Force 1 has a magnitude of33.0 N pointing due north. Force 2 has a magnitude of 88.1 Npointing 22.0 degrees south of west. What is the net force?
A 2400 kg car moving at an initial speed of 25 m/s along a horizontal road skids to a stop in 64 m. Find the energy dissipated by friction
You look through a Polaroid sheet at a 75 W light bulb 3.00 m away. Find the intensity of the light you see
Vector A added to Vector B is equal to the magnitude of A added to the magnitude B, the vectors must be:
A horizontal light ray is incident on a crown glass prism as shown in the figure below where ? = 42.5°. Find the angle of deviation ? of the ray-the angle
A listener increases his distance from a sound source by a factor of 3.62. what is the change in the sound intensity level in dB
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