Physics, 06.04.2021 05:40 happy121906

What do we need to fight against war, tragedy and sorrow?

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Physics, 22.06.2019 03:30, sere50

The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.

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Physics, 22.06.2019 07:30, AnaiyaKirksey8

This is the substance(s) formed in a chemical reaction.

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Physics, 22.06.2019 15:20, sandrinedionne7153

A20 cm long spring is attached to a wall. the spring stretches to a length of 22 cm when you pull on it with a force of 100 n. what is the spring constant

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Physics, 22.06.2019 19:00, helpmegraduate40

1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)