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A 1.67 m tall woman is standing 4.5 m in front of a convex (diver gins) mi or, and the non-inverted image formed is 0.5 m tall.\Find the focal distance and the radius of curvature of mirror.
A myopic (nearsighted) man has a far point of 120 cm. What poet contact lens (when on the eye) will correct his distant vision?
Suppose that a person singing in the shower is producing1.34 mW of sound power. Some of the soundis reflected from the floor and ceiling. The intensity of this reflected sound at a distance of 3.01 mfrom the source is 4.40 10-6 W/m2.
two wires a and b made of the same material and having the same lengths are connected across the same voltage source.
Determine what flow rate is required for a single round-hole impact or to have an aerodynamic cut-point of 0.7 meter the jet diameter is 0.07cμ
calculate the speed of the block at the instant the dielectric leaves the capacitor assuming it starts at rest and that the voltage across the capacitor after the dielectric is removed is measured to be 900 V.
Two capacitors, C1 = 28.0 µF and C2 = 41.0 µF, are connected in series, and a 18.0-V battery is connected across them. find the energy stored in each individual capacitor
What is the magnitude of the electric field at a distance of 1.4 m from a point charge with Q = 5.0 C
An object moves with constant acceleration 3.25 m/s2 and over a time interval reaches a final velocity of 10.2 m/s. What is the distance it travels during this interval
A copper vat is 12m long at room temperature (20°C). How much longer is it when it contains boiling water at 1 atm pressure?
A cord is wrapped around the rim of a solid uniform wheel 0.300 {\rm m} in radius and of mass 9.00 {\rm kg}. A stable horizontal pull of 42.0 {\rm N} to the right is exerted on the cord, pulling it off tangentially from the wheel.
The chamber of a rock-tumbling machine is a hollow cylinder withmass 62 g and radius 7.1 cm. The chamberis closed off by end caps in the form of uniform circular diskseach of mass 22 g.
croquet balls all have a mass of 0.5kg. the green ball is moving at 12.0ms and strikes a blue ball which is still after
a 10.0 kg block of ice is at a temperature of -10.0oc. the block absorbs 4.11x106 j of heat. as a result the block of
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