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A 9.0 battery supplies a 2.0 current to a circuit for 4.8. How much charge has been transferred from the negative to the positive terminal? Express your answer using two significant figures.
The helicopter in the drawing is moving horizontally to theright at a constant velocity. the weight of the helicopter isW=53800N. What is the magnitude of the lift force
A car moving with an initial speed v collides with a second lighter stationary car that is 49.6% as massive. Calculate the final speed of the two cars after the collision
A car accelerates uniformly from rest and reaches a speed of22.9m/s in8.95s. Assume the diameter of a tire is58.3cm. What is the final angular speed of a tire in revolutions per second
A spring of k=12.00 N/m has a block of mass 11- kg attached to it on a frictionless table. If the block is pulled a distance 0.17m to the right and released from rest, how long would it take the block to return to its equilibrium position? Give yo..
the astronaut whose heart rate on earth is 60 beats/min increases his velocity to v=.8c. Now what is his heart rate as measured by an earth observer
Astronaut Buzz throws a ball horizontally on the planet SeeSUN with a speed of 5.25m/s. the ball falls through a vertical distance of 1.92m and lands a horizontal distance of 16.4m from the astronaut. what is the acceleration due to gravity on SeeSun..
When he reaches equator, the sphere is rotating at how many rpm. A car takes 9 s to go from v = 0 to v = 55 m/s at about constant acceleration.
A screen is placed exactly one meter away from an illuminated test pattern. A lens placed between them forms a clear (focused) image of the pattern on the screen when the center of the lens is 250 mm from the test pattern. What is the focal length of..
a 1.0-cm-tall object is 20cm in front of a converging lens that has a 10cm focal length. use ray tracing to find the
one mol of aluminum at a uniform temp of 0c is placed in thermal contact with a 2nd mol of aluminum which initially is
An infinitely long line of charge has linear charge density 4.00 10-12 C/m. A proton (mass 1.67 10-27 kg, charge +1.60 10-19 C) is 17.0 cm from the line and moving straight toward the line at 3000m/s.
A 30-kg shopping cart full of groceries sitting at the top of a2.0-m hill begins to roll until it hits a stump at the bottom ofthe hill. How deep is the dent made in the car?
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