1.A weight lifter lifts a 350-N set of weights from ground level to a position over his head, a vertical distance of 2.00m. How much does the weights lifter do, assuming he moves the weights at constant speed? with free body diagram.

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A: Given: The acceleration of the truck is 2.5 m/s2 for 25 s. The initial velocity of the object is 0…

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A: The rate of conductive heat transfer through a material is given by, ∆Q/∆t = kA∆T/d ilk is the…

Q: Problem 1:   In this problem a heat engine, each cycle, absorbs an amount of energy Qh = 1915 J from…

A: You have posted a question with multiple subparts. According to company policy, we will answer the…

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Q: Question Completion Status: QUESTION 4 At the instant switch S is dosed the current in the circuit…

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Q: A message was sent from Mars to Earth. Mars is approximately 54.6 million kilometers away from the…

A: Given Distance between Mars to Earth = 54.6 million kilometres We to calculate How long did the…

Q: A heat engine (Carnot cycle ) has its intake and exhaust temperature of 157oC and 100oC,…

A: Given data :- Intake temperature T1 = 157° C = 430 K Exhaust temperature T2 = 100° C = 373 K

Q: A body does 32 Joules of work in 6 seconds . What is it's power

A: Power is define as the work done per unit time. Power = work/time

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A: The situation of the electric field is shown below.

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A: Loudness of speaker =109 dB  Distance, R =22.0 m

Q: flows through the two parallel wires

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A: Given : Asked what is the advantage of using two diverging lenses in one optical instrument.

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A: We can see the solution of this problem using ray diagram

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Q: Does special relativity allow anything to travel faster than light? Discuss.

A: Given: Does special relativity allow anything to travel faster than light? Discuss.

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A: Please see the answer below.

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A: Dear student,  Since you have posted multiple true false type questions, according to company…

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A: Tile falls from roof of a building ,then it moves under acceleration due to gravity .

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.