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(a) A steel wire is stretched by a weight of 400N. If the radius of the wire is doubled, how will Young’s modulus of the wire is affected. Why?
Answers: 3
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In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
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Physics, 22.06.2019 11:20
Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
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What are the similarities & differences between a thermistor and a light dependent resistor in physics?
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Physics, 23.06.2019 03:20
2. which of the following does not affect the electrical resistance of a body? a. material composing the body b. bodies directly surrounding the body c. length of the body > d. temperature of the body
Answers: 2
(a) A steel wire is stretched by a weight of 400N. If the radius of the wire is doubled, how will Yo...
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