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A loaded grocery cart is rolling across a parking lot in astrong wind. You apply a constant force F=(30N)i-(40N)j to the cart as it undergoes a displacement s=(-9.0m)i-(3.0m)j. How much work does the force you apply do on the grocery cart?
An AC voltage of the form ?v = 100 sin 1 000t, where ?v is in volts and t is in seconds, is applied to a series RLC circuit. Find the average power delivered to the circuit
A professor shipwrecked on Hooligan's Island decides to build a telescope from his eyeglasses and some coconut shells. Which lens should he use as the objective
A total of 2.99·106 electrons are placed on an initially uncharged wire of length 2.25 m. What is the magnitude of the acceleration of a proton placed at that point in space
A disk of radius R = 11 cm is pulled along a frictionless surface with a force of F = 16 N by a string wrapped around the edge. what is the torque exerted about the center of the disk
A spring has force constant 8.3 Nm^-1. A 0.075kg mass is hung on the end of the spring.
Bob has just finished climbing a sheer cliff above a beach, and wants to figure out how high he climbed. All he has to use, however, is a baseball, a stopwatch, and a friend on the ground below with a long measuring tape, How high up is Bob
Find density of the object
What is the total charge on Earth's surface implied. explain the strength and direction of an electric field.
A hydrogen atom is in its first excited state (n = 2). Using the Bohr theory of the atom, calculate (a) the radius of the orbit, (b) the linear momentum of the electron.
An optometrist prescribes contact lenses that have a focal length of 56.0 cm. Where is the unaided near point of the person located
What is the magnitude of the acceleration of rock.
Find out the distance traveled (in meters) by the jet as the observer watches the nose of the jet cross from one side of the moon to the other.
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