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A diverging lens (f = -11.5 centimeter) is placed 20.0 centimeter to the left of a converging lens (f =30.5 centimeter). A 3.00 centimeter tall object stands to the left of the diverging lens, exactly at its focal point.
(a) Find the distance of the final image relative to converging lens.
cm
(b) Find what is the height of the final image (including proper algebraic sign)?
A student throws a set of keys vertically upward to her sorority sister, who is in a window 4.00m above. The second student catches the keys 1.50s later. (a) With what initial velocity were the keys thrown? (b) what was the velocity of the keys just..
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Several bacteria are propelled by biological motors that spin hair-like flagella. A typical bacterial motor turning at a constant angular velocity has a radius of 1.21 10-8 m, and a tangential speed at the rim of 2.32 10-5 m/s. What is the angular sp..
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A brick is thrown upward from the top of a building at an angle of 45° to the horizontal and with an initial speed of 10 m/s. If the brick is in flight for 2.8 s, how tall is the building.
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