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A 4.0 kilogram mass has a velocity of 4m/s ,east when it explodes into two 2 kilogram masses. After the explosion one of the masses has a velocity of 3m/s at an angle of 60o north of east. Find the magnitude of the velocity of the other mass after explosion?
A drop of water on a countertop reflects light from a flower held 3.10 cm directly above it. What is the focal length of the water drop
A radiation detector is in the form of a circular disc of diameter 3.0cm. It is held 25cm from a source of radiation, whereit records 1250 counts per second. Assuming that the detector records every radiation incident upon it, find the activity of th..
A beam of light in air is incident on the surface of a rectangular block of clear plastic (n = 1.38 ). what is its velocity inside the block
In a model AC generator, a 501 turnrectangular coil 10.0 cm by27 cm rotates at 117 rev/min in a uniform magnetic field of0.55 T. What is the maximum emf induced in the coil?
what is the least count of a measurement instrument and how is it related to the number of significant figures of the
Two packages at UPS start sliding down the 20 degree ramp, How long does it take package A to reach the bottom
A luminous object is 3.60m from a wall. You are to use a concave mirror to project an image of the object on the wall, How far should the mirror be from the wall
A Synchronous Turbo Generator is otating at 1800rpm, has acylindrical rotor(the rotor is the rotating component of the Turbogenerator) 3meters long, What is the kinetic energy possessed by the spinning rotor
A 658-kg boulder is dropped into a mine shaft that is 2.1 x 103 m deep. During the boulder's fall, the system consisting of the Earth, Determine the binding energy (in Joules) of the Earth-boulder system
Three negative charges of equal magnitudes are positioned along the x-axis at x = -a, x=0, and x = +a respectively. How does the potential energy of the system of charges change as a result
An ideal transformer shown in the ?gure below has a primary with 45 turns and secondary with 18 turns. What is the reading of the ammeter
A jogger generates heat energy at a rate of 808.2 W. If all this energy is removed by sweating, how much water must evaporate from the jogger's skin each hour
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