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An archer, about to shoot an arrow, is applying a force of +320 N to a drawn bowstring. The bow behaves like an ideal spring whose spring constant is 420 N/m. What is the displacement of the bowstring?
_________ m
A small sphere of mass m= 7.60 g and a charge q1 = 29.9 nC is attracted to the end of a string, what is the smallest value d can have before the string breaks
A planoconcave lens (n = 1.52) has a focal length of -24.6cm. What is the radius of the concave surface
determine the angle below the horizontal that you must aim your spear gun in order to catch dinner. Suppose the spear gun barrel is 1.70 m above the water surface, the fish is 1.40m below surface, and the spear travels in a straight line all the w..
If the rubber of the balloon itself has a mass of 2.00 g and the balloon is filled with helium, calculate the net upward force (the "lift") that acts on it in air
Calculate the efficiency of a reversible engine that operates between the temperatures 620.0° C and 345.0° C
In what direction should the plane head in order to fly.
If a material increases its length from 130 m to 132.60 m when its temperature is rasied 155 degrees C, what is its coefficient of linear expansion
A 1.10kg , horizontal, uniform tray is attached to a vertical ideal spring of force constant 190N/m and a 295g metal ball is in the tray. How fast is the ball moving just as it leaves the tray
What is the distance of the man from the pier after he walks to the front of the boat at a velocity of 3mph? Assume no friction between the boat and the water.
The moon in its orbital about the earth has a centripetal acceleration about 1/4200 of that an object dropped on Earth's surface. If the moon were twice as far away what would its centripetal acceleration be?
Consider a transcranial magnetic stimulation (TMS) device containing a coil with several turns of wire, each of radius 3.40 cm. What electric field is induced on the circumference of this circular area
What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 20^circ {rm C}? Suppose that the air bubble is always in thermal equilibrium with the surrounding water.
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