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An object 2.0mm high is placed 12cm from a convex mirror of radius of curvature 12cm.
(a) Determine the image distance using the mirror equation 1do+1di=1f. Follow the sign conventions.
(b) Determine the image size using the equation for magnification m=hiho=?dido. Follow the sign conventions.
A 130 lb subject did 33 lifts/min up a 30 cm step for 5 minutes, what was the work rate, power output and what was the total work done
the power company charges 10 cents per kilowatt-hour, explain how much will it cost to leave the bulb on for 30 days? Show your work.
A near-sighted woman cannot focus on any object farther away than a distance x = 57 cm. Find the focal length of the lens which will correct her vision
A 0.14 kg ball is placed in a shallow wedge with an opening angle of 126°. For each contact point between the wedge and the ball, determine the force exerted on the ball. Assume the system is frictionless.
Two doors of the same unknown dimension lay inline and parallel horizontally to one another (Example: As viewed from above in an architectural drawing.
A golf ball strikes a hard, smooth floor at an angle of 30 ° and, as the drawing shows, rebounds at the same angle. The mass of the ball is 0.047 kg, its speed is 45 m/s just before and after striking the floor. What is the magnitude of the impuls..
Assuming biological substances are 98 percent water, estimate the masses of a cell with a diameter of 0.7 µm, a human kidney, and a fly. Take a kidney to be roughly a sphere with a radius of 5.0 cm and a fly to be roughly a cylinder 4.90 mm long a..
What is force necessary on one end of apparatus in order to lift the car? How much work is done lifting the car?
In the annual battle of the dorms, students gather on the roofs of Jackson and Walton dorms to launch water balloons at each other with slingshots, Find the direction of the balloon's inital velocity
A sample of animal bone unearthed at an archaeological site is found to hold 173 grams of carbon and the decay rate of 14-C in the sample is measured to be 8.10 Bq. How old is the bone.
compute the force and the total work required in each case. Find the tension in each of the cables.
Does an apple tree exert a gravitational force on the earth and if so, how large of a force? Consider and explain this question when the apple is attached to the tree, and when it is falling.
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