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One gram of nickel has 1.026 x 10^22 atoms, and each nickel atom has 28 electrons. How many electrons are contained in 6.00 g of nickel? The elemental charge is 1.6x 10^-19 C. Answer in units of electrons.
What is the total charge of these electrons? Answer in units of C.
A member of an aircraft maintence crew wears protective earplugs that reduce the sound intensity by a factor of 350. What sound intensity level would the crew member experience
A steel aircraft carrier is 352 m long when moving through the icy North Atlantic at a temperature of 2.93 °C. By how much does the carrier lengthen when it is traveling in the warm Mediterranean Sea at a temperature of 23.8 °C?
A pesky 1.7 mg mosquito is annoying you as you attempt to study physics in your room, which is 4.5m wide and 2.5 m high. What is the maximum uncertainty in the horizontal position of the mosquito
a ball of mass m is dropped from a cliff. as the ball falls it is subject to air resistance such that the acceleration
A 2.3A current is flowing in a 25H inductor. A switch is opened, interrupting the current in 1.0ms. Find the induced emf in the inductor
A diver springs upward from a diving board. at instant she contacts the water , her speed is 8.90m/s. and her body is extended at an angle7.50degrees. with respect to the horizontal surface of the water, at this instant her vertical displacement is -..
At typical nuclear power plants, refueling occurs every 18 months. Assuming that a plant has operated continuously since the last refueling and produces 1.0 GW of electrical power at an efficiency of 26%, how much less massive are the fuel rods a..
A block of mass m = 2.0 kg attached to a spring with spring constant k on a frictionless surface. The block is pushed to the left to position x = -0.5 m and, at time t = 0, it is released from rest and starts oscillating with a period of 2.0 s.
A small object of mass 3.80 g and charge -18 μC "floats" ina uniform electric field. What is the magnitude and direction of the electric field
Raul pushes a stalled car with a force of 204 N. If the requiredforce decreases at a constant rate from 204 N to 44.0 N for adistance of 16.3 meters in 16.0 seconds, calculate the average power required to move the car.
Visit the Endeavour Space Shuttle (any day) at the Science Center. Fees vary so visit the Reservation Desk for info. For directions click here. It's near USC in downtown LA.
Calculate the net work done by the force of friction. A 1.50 m-long, 530 g rope pulls a 7.00 kg block of ice across a horizontal, frictionless surface. The block accelerates at 1.90 {rm m}/{rm s}^{2}. How much force pulls forward on (a) ice (b) rop..
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