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How would you determine the extension of the spring when a force is applied to it?
a. Use the length before the force is added.
b. Use the length after the force is added.
c. Add the before and after lengths together.
d. Subtract the length before the force is added from the length after the force is added.
A baseball pitcher pitches a fastball with a horizontal velocity of 40 m/s. The horizontal distance from the point of release to home plate is 17.50 m. what is the instantaneous linear veloity of the sweet spot at the instant of ball contact
A block of mass 1.2 kg slides along a frictionless horizontal surface with an initial speed of 5.2 m/s. Use the work-energy theorem to determine the coefficient of kinetic friction between the block and the rough surface
Suppose a gliding bird is caught in an updraft so that it ascends at a steady rate, in this situation, which has greater magnitude; the force of gravity or the upward force of the air on the bird
An archer wishes to shoot an arrow at a target at eye level a distance of 43.5 m away. what angle should the arrow make with the horizontal
An electromagnetic wave of intensity 240 W/m2 is incident normally on a rectangular card with sides of 19 cm and 31 cm that reflects the entire radiation incident on it. Discover the force exerted by the electromagnetic wave on the card if the radiat..
the rabbit covers a 30m practice course in 5 seconds and theturtle covers same distance in 120 seconds the actual race is runon 96 m course , how many minutes the rabbit beat turtle
A near-sighted person might correct his vision by wearing diverging lenses with focal length f = -45cm, Use ray tracing to determine the location of the image
What minimum horsepower must a motor have to be able to drag a 350 kilogram block up a 15o ramp at a speed of 1.50 m/s if the coefficient of kinetic friction is 0.25
a proton accelerates from rest in a uniform electric field of 624 nc. at some later time its speed is 1.04 106 ms.a
At a coal-burning power plant a steam turbine is operated with a power output of 548 MW. At what rate must heat be supplied to the power plant by burning coal
A 16.0-m uniform ladder weighing 480 N rests against a frictionless wall. Find the horizontal and vertical forces the ground exerts on the base of the ladder when an 820-N firefighter has climbed 3.90 m along the ladder from the bottom
Write an essay with examples on the uses of fluid mechanics with relevant references
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