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Q. Three identical 6.00 masses are hung by three identical springs, as shown in the figure. Each spring has a force constant of 8.40 and was 15.0 long before any masses were attached to it. How long is each spring when hanging as shown? (Hint: First isolate only the bottom mass. Then treat the bottom two masses as a system. Finally, treat all three masses as a system.)
Q. A straight wire 6.0 m long carries 30 microC} distributed uniformly over its length. Find the electric field strength 11 cm from the wire axis, not near either end. Find the electric field strength 400 m from the wire.
A ferrari race car on the straight road starts from rest, accelerating at 2.00 m/s^2 until it reaches a speed of 20.0m/s. Then the car travels for 20.0 s at the constant speed until the brakes are applied, stopping the truck in a uniform manner in an..
A rotational axis is directed perpendicular to the plane of a square and is located . Two forces, 1 and 2, are applied to diagonally opposite corners, and act togther the sides of the square, first as shown in part a and then as shown in part b of..
A hotel elevator ascends 140 m with a maximum speed of 5.80 m/s. Its acceleration and deceleration both have a magnitude of 1.50 m/s2.
A child slides across a floor in a pair of rubber-soled shoes. Thefriction force acting on each foot is 20.0 N. The footprint area ofeach shoe sole is 14 cm2, and the thickness of eachsole is 5 mm. Find the horizontal distance by which the upper a..
A 3.50 x 10^2 N child is in a swing that is attached to ropes 1.75 m long. find the gravitational potential energy associated with the child relative to her lowest postion. What is the net charge inside the die.
What is the magnitude of the normal force that each brake pad applies to the rim . find the length of the meterstick as measured in frame S1 according to classical physics. Reply in units of m.
What is frequency of the string
W hat is the downward acceleration of the blue spool
Establish angles subtended by the moon and the sun
John, a 76-year-old grandfather, had been smoking heavily for 26 years and had a persistent cough. A biopsy of his lung tissue revealed considerable amounts of carbon particles. How might this happen considering the natural cleaning mechanism of the ..
A person walks 36° north of east for 2.36 km. How far would another person walk due north and due east to arrive at the similar location.
A certain type of laser emits light that has a frequency of 5.2 x 10^14 Hz. The light, however, occurs as a series of short pulses, each lasting for a time of 2.7 x 10-11 s. How many wavelengths are there in one pulse.
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