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A platinum sphere with radius 0.0109 m is totally immersed in mercury. Find the weight of the sphere, the bouyant force acting on the sphere, and the sphere's apparent weight. The densities of platinum and mercury are 2.14 × 104 kg/m3 and 1.36 × 104 kg/m3, respectively.
A charge of +2q is fixed to one corner of a square, while a charge of -1q is fixed to the diagonally opposite corner. Expressed in terms of q, what charge should be fixed to the center of square, so the potential is zero at each of the two empty c..
An explosion breaks an object into two pieces, one of which has 1.5 times the mass of the other. how much kinetic energy did each piece acquire
A bunch of grapes is placed in a spring scale at a supermarket. The grapes oscillate up and down with a period of 0.32s, What is the weight of the grapes
A toaster uses a Nichrome heating wire. When the toaster is turned on at 20° C, the initial current is1.50 A. A few seconds later, the toaster warms up and the currentnow has a value of 1.24 A. The averagetemperature coefficient of resistivity for..
a quantity of 1.3 mol of argon gas is confined to a 2.1 l container at a pressure of 1019 kpa. what is vrms for the
Note down that since each oscillator is attached to two "springs", and each "spring" is half the length of the interatomic bond, the effective interatomic spring stiffness for one of these oscillators is times estimated value given above.
A high diver of mass 80.0 kg jumps off a board 10.0 m above the water. what average upward force did the water exert on him
Unpolarized light is incident upon two polarization filters that do not have their transmission axes aligned. what is the angle between the transmission axes of the filters
A 6000kg truck stands on the deck of an 80000kf ferryboat. Initially the ferry is at rest and the truck is located at its front end. how far will the ferry move forward relative to the water
A small package rests on the horizontal dashboard of a car. If %u03BCs = 0.327, what is the minimum acceleration of the car
An electric dipole consists of charges +2e and -2e separated by 0.78nm. It is in an electric field of strength 3.4 x 106 N/C. Calculate the magnitude of the torque on the dipole
A 15 N block lifted straight upward by a hand applying a force of 15 N has an initial kinetic energy of 7 J. What is the block's final kinetic energy
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