A wire of radius r and length l and resistivity rho has a
A wire of radius r and length L and resistivity ρ has a resistance R. Estimate what is the new resistance if the wire is stretched to 4 times its original length. (Hint: volume is constant)
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an 845 kilogram race car can drive around an unbanked turn at a maximum speed of 61ms without slipping the turn has a
a 10 gram bullet is fired horizontally into a 300 gram wooden block initially at rest on a horizontal surface and
a curve in a road forms part of a horizontal circle as a car goes around it at constant speed 140 ms the total force
a 120 kilogram shell is launched at an angle of 55o above the horizon with an initial velocity of 150 ms when at its
a wire of radius r and length l and resistivity rho has a resistance r estimate what is the new resistance if the wire
a rotating wheel requires 800 second to rotate 300 revolutions its angular velocity at the end of the 800 second
a race car starts from rest on a circular track of radius 690 meter the cars speed increases at the constant rate of
your mother just won 250000 for splitting a noble prize with three coworkers if she invest her prize money in a
a 500 kilogram child stands at the rim of a merry-go-round of radius 215 meter rotating with an angular speed of 270
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