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A wire whose resistance si R120ohm is cut in 7 equally longpecies, which are then connected in parallel way. What is the resistance of the parallel contribution.
The photograph shows an electron beam whose initial direction of motion is horizontal, from right to left. A magnetic field deflects the beam downward. What is the direction of the magnetic field?
A transformer with a turns ratio (secondary:primary) of 1:80 is used to step down the voltage from a 120-V wall socket to be used in a battery recharging unit. What is the voltage supplied to the recharger?
A 426 kg bear grasping a vertical tree slides down at constant velocity. The acceleration of gravity is 10m/s2. What is the friction force that acts on the bear? Answer in units of N.
Calculate the force on an airplane which has acquired a net charge of 1650 µC and moves with a speed of 130 m/s perpendicular to the Earth's magnetic field of 5.0 *10^-5T
need these short essay questions done asap. valid reputable sources are needed as is a works cited. interned sources
A 2.00kg block is pushed against a 400N/m spring, compressing it 22.0 cm. When the block is released, find the speed of the block just after leaving the spring
A wheel that is rotating at 33.3 rad/s is given an angular acceleration of 1.25 rad/s^2. What is the angular speed after the wheel has turned an angle of 948 rad
Consider a parallel plate capacitor with an area of 2 cm^2 and a plate separation of 0.02 mm which is charged to a voltage of 2 kV. The work function for the electrons in the plate is 3.8 eV. Compare the electron tunneling current when there is a vac..
A bullet of mass 4.3 g is fired horizontally into a 8.60 kg wooden block at rest on horizontal surface. The coefficient of kinetic friction between block and surface is 0.13.
A 0.015 kg record with a radius of 15 cm rotates with an angular speed of 33(1/3) rpm. Find the angular momentum of the record
A diverging lens (f = -11.0 cm) is located 25.0 cm to the left of a converging lens (f = 36.0 cm). What is the height of the final image
q1. clarify how einsteins contribution to understanding the force between the earth and the moon differed from newtons.
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