2 years ago

Work is done when a person at rest holds a package vertically a. true b. false

Physics

1 answer:

Ksivusya [100]2 years ago

6 0

Answer:

False

Explanation:

Work= F*D and since the box isn't moving moved resulting in its displacement equalling 0, the work done on the package is 0.

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Suppose we have a laser emitting a diffraction-limited beam (=632 nm) with a 2-mm diameter. How big a light spot from this lase

expeople1 [14]

Answer:

Explanation:

λ = wave length = 632 x 10⁻⁹

slit width a = 2 x 10⁻³ m

angular separation of central maxima

= 2 x λ /a

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= 632 x 10⁻⁶ rad

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nikdorinn [45]

Answer:

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brainly.com/question/1478685

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An automobile of mass 1.46 cross times to the power of blank 10 cubed kg rounds a curve of radius 25.0 m with a velocity of 15.0

Vsevolod [243]

The centripetal force exerted on the automobile while rounding the curve is $1.31\times10^4 N$

<u>Explanation:</u>

given that

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Slav-nsk [51]

Answer:

Yes.

Explanation:

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