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A concave mirror has a focal length of 28.7 cm. The distance between an object and its image is 52.8 cm. Find (a) the object and (b) image distances, assuming that the object lies beyond the center of curvature and (c) the object and (d) image distances, assuming that the object lies between the focal point and the mirror.
A 450g rubber ball is dropped from 2.0m above the floor. After the bounce, the ball only rises to a height of 1.5m above the floor. find the amount of heat generated when the ball hits the floor
A 5.00 mL syringe has an inner diameter of 6.00 mm, a needle inner diameter of 0.210 mm, and a plunger pad diameter (where you place your finger) of 1.2 cm. A nurse uses the syringe to inject medicine into a patient whose blood pressure is 140/100..
A fire truck connects their hose (radius r1 = 5 cm) to a fire hydrant. The underground water lines have a radius of r2 = 15 cm, How high above the end of the hose will the water reach
a point charge of -3 c is located at x 2 m y -2 m. a second point charge of 12 c is located at x 1 m y 1 m.a find
Two 1.8 V. batteries are connected together in series to a bulb whose resistance is 50 ohms. How many electrons leave each battery per minute
A blue puck with a mass of 3.60×10?2kg , sliding with a speed of 0.180m/s on a frictionless, horizontal air table, makes a perfectly elastic, head-on collision with a red puck with mass m, Find the mass m of the red puck
Presume a spherical planet P has a uniform density of 4.72 x 10^3 kg/m^3 and a radius R = 3604km. For a parcel that weighs 64N on the surface of the spherical Earth.
the cross sectional areas of the pistons in the system have a ratio of 25 to 1. If the maximum force that can be applied to the small piston is 12 N, what is the maximum weight that can be lifted?
A fisherman in a stream 36 cm deep looks downward into the water and sees a rock on the stream bed. How deep does the stream appear to the fisherman
In a series R-L-C circuit, L=0.200 H, C=80.0 microfarads, and the voltage amplitude of the source is 240 V. What is the resonance angular frequency of the circuit
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor, How tall is the tower
Unpolarized light with an average intensity of 750.0W/m2 enters a polarizer with a vertical transmissionaxis. What is the orientation angle of the second polarizer relative to the first one
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