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1. Compute near point distance of farsighted eyes of a person who uses +1.5D reading glasses.
2. Compute far point distance of a nearsighted eye which requires a -4D correcting lens.
A flea jumps straight up to a maximum height of 0.470 m. What is its initial velocity v_0 as it leaves the ground.
a bowling ball has a mass of 7.2 kg and radius of 0.11m. a billiard ball has a mass of 0.38 kg and a radius of 0.028 m.
Hoursehoe bats use the Doppler effect to determine their location. A horsehoe bat flies towards a wall at a speed of 16.0 m/s while emitting sound of frequency 39.0kHz. What is beat frequency between the emission frequency and the echo? ____________ ..
When a rock thrown straight upwards gets to the exact top of its path, its. While a car travels around a circular track at a constant speed its
A microwave oven of mass 12.5kg is pushed a distance 8.00m up the sloping surface of a loading ramp inclined at an angle of 36.2? above the horizontal, What is the work done on the oven by the force
When a 5.5 cm long pencil is arranged perpendicular to a convex mirror's optical axis at a distance of 29 cm from the mirror, its image is 2.8 cm tall. (a) What is the mirror's focal length (include sign if negative)? (b) How tall is the pencil's ..
A certain ship is shaped like a box, with vertical sides and a flat bottom. When the ship sails with cargo in the ocean (saltwater), Find the mass of the ship without the cargo
at a mail sorting facility packages slide down a ramp but are stopped part way down the ramp so that they can be
A drop of water on a countertop reflects light from a flower held2.6 cm directly above it. The flower's diameter is 2.0 cm, and the diameter of the flower's image is 0.19 cm. What is the focal length of the water drop, assuming that it might be treat..
Electromagnets that produce large magentic fields use water cooling to prevent excessive heating of the magnet's coils. How many liters of water must circulate by the coils each second if the temperature of the coils is not to exceed 49°C
A computer CD-ROM drive that operates on 120 V is rated at 50W when it is operating. What is the drive's resistance
A 13.9-mW vertically polarized laser beam passes through a polarizer whose polarizing angle is 26.7° from the horizontal. What is the power of the laser beam when it emerges from the polarizer
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