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Compute all parts of given question:
Question: Superman is standing 124 m horizontally away from Lois lane. A villain drops a rock vertically downward with a speed of 2.26 m/s from 19.3 m directly above Lois.
Part A: If Superman is to intervene and catch the rock right before it hits Lois, what should be his minimum constant acceleration?
Part B: How fast will Superman are traveling when he reaches Louis?
Please show me how work it out above question.
A 50 W light bulb shines through two polarizers. After having passed through the first polarizer, the electric field incident on the second polarizer is 5.0 V/m. The second polarizer sits at a 25° angle from the first polarizer.
A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 13.0 cm, giving it a charge of -17.0 microC. Find the electric field just inside the paint layer
A strip of copper 3.0 cm wide carries a current I = 28.5 A to the right, What is the direction of the average magnetic force on the conduction electrons
uring July 1994 the comet Shoemaker-Levy 9 smashed into Jupiter in a spectacular fashion. determine what would have been the change (magnitude only) in Jupiter's orbital speed (not its final speed)
A fountain shoots a jet of water 10 m into the air. The fountainhas a round nozzle of diameter 1.84 cm at ground level, fed by a pump located 6 m belowground through a round pipe of diameter 5.19 cm.
A battery with an emf of 9.00 V has an internal resistance r. When connected to aresistor R, the terminal voltage is 8.80 V and the current is 0.11A. When a second identical battery is added in series and the externalresistor is R = 15 Ohms what i..
Is the plane of polarization of a polarizing polymer sheet in the similar direction as the molecular chain orientation? Describe . What is meant by optical activity?
Two pieces of steel wire with identical cross sections have lengths of L and 3L. The wires are each fixed at both ends and stretched so that the tension in the longer wire is five times greater than that in the shorter wire. If the fundamental freque..
Two 120kg lead spheres are suspended from 170m -long massless cables. By what distance do the two spheres move closer
A 20 g bullet traveling at 300 m/s is shot into a 4.0 kg block at rest on a frictionless horizontal surface. What is the speed of the block right after shooting
A race car starts from rest on the circular track of radius 455m. The car's speed increases at the constant rate of 0.480m/s2. At the point where magnitudes of the centripetal and tangential accelerations are equal.
consider a piston-cylinder device that contains nitrogen gas as the system. initially the system is at 1 mpa and
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