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A metallic object holds a charge of -3.8*10-6 C. What total number of electrons does this represent? (e = 1.6*10-19 C is the magnitude of the electronic charge.)
Two small metallic spheres, each of mass m = 0.15 g, are suspended as pendulums by light strings from a common point as shown in the figure below. The spheres are given the same electric charge, and it is found that they come to equilibrium when each..
Sam is taking his girlfriend Sally out for a ride in his boat. He starts out at rest. He accelerates with an acceleration of 0.168 m/s^2 for 85.6 s. What is the total time the boat moves
What is the magnitude of the runner's total displacement . What is the phase difference between the two waves next they reach the observer.
A block with mass m1 = 8.6 kg is on an incline with an angle ? = 31.0° with respect to the horizontal. What is the coefficient of kinetic friction between the incline and the block
Water is flowing through a channel that is 12m wide with a speedof 0.75m/s. find the speed of the water in oneof the smaller channels
A hydrogen atom in a state having a binding energy (the energy required to remove an electron) of 0.544 eV makes a transition to a state, What is the energy of the photon emitted as a result of the transition
determine the velocity of a canoe relative to the shore of a river if the velocity of the canoe relative to the water
When verticaly falling sand hits a horizontally moving cart, the cart slows. avoid any friction between the cart and the tracks. Give two reason for this, one in terms of a horizontal force acting on the cart, and one terms of momentum conservatio..
Illustrate what is the minimum coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road?
A motorist drives south at 22.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 3.00 min, Find the total vector displacement and south west
A 240 gram block slides back and forth on a frictionless surface between two springs. Determine the speed of the block as it moves between the springs
A collection of hydrogen atoms in the ground state is illuminated with ultraviolet light of wavelength 59.0 nm. Find the kinetic energy of the emitted electrons
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