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Two masses, m1 = 3.33 kilogram and m2 = 5.43 kilogram, are on a frictionless tabletop and mass m3 = 8.79 kilogram is hanging from m1. The coefficients of kinetic and static friction between m1 and m2 are 0.317 and 0.417, correspondingly. Determine what are the accelerations of masses?
Two Polaroids are aligned so that the light passing through them is a maximum. At what angle should one of them be placed so that the intensity is subsequently reduced by half?
White light is incident on a soap film (n = 1.30) in air. The reflected light looks bluish because the red light (? = 695 nm) is absent in the reflection, What is the minimum thickness of the soap film
what is length of the stick as measured from S?
a brass cylindrical bar at 300 k has a diameter of exactly 34 mm. an aluminum ring has an inner diameter which is
An unwary football player collides with a padded goalpost while running at a velocity of 8.50 m/s and comes to a full stop after compressing the padding and his body 0.150 m. How long does the collision last
A bird stands on a dc electric transmission line carrying 2800 A. find the potential difference between the bird's feet
a 1100kg auto is at rest at a traffic signal. At theinstant the light turns green, how far is the com of the auto-truck system from the traffic light at t=1.6s
questiona solenoidal coil with 24 turns of wire is wound tightly around another coil with 350 turns. the inner solenoid
A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 4.4 s later. If the speed of sound is 340 m/s, how high is the cliff
The density of brass is 8.70 g/cm3. What is the ratio between the two moments of inertia, Ibrass : Ialuminum
A box of books weighing 334 N is shoved across the floor by a force of 479 N exerted downward at an angle of 33° below the horizontal. What is the maximum coefficient of kinetic friction between the box and the floor that allows the box to move with ..
A 135 g copper bowl contains 190 g of water, both at 20.0°C. A very hot 300 g copper cylinder is dropped into the water, causing the water to boil, with 5.75 g being converted to steam. The final temperature of the system is 100°C. Neglect energy tra..
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