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VladimirAG [237]
3 years ago
6

Priya lifts a box of apples from the ground to above her head. How was energy transferred?

Physics
1 answer:
Vanyuwa [196]3 years ago
4 0

Answer:

Energy is transferred from Priya to the box.

Explanation:

Pls mark as brainliest

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A 3.00-kg box that is several hundred meters above the earth’s surface is suspended from the end of a short vertical rope of neg
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Answer:

A) 3.48m/s

B) 3.92m

C) 2.32m

D 23.33m/s

Explanation:

ma(t)=mg-At

a(t)= g - (At/m)

V(t)= integrala(T)dT = gt- (At^2/2m)

Initial x coordinator of the box is zero

X(t)= integralV(t)dt= 1/2gt^2-(At^3/6m)

a) V =( 9.81×1) -(38×1^2/2×3)

V= 9.81-6.33= 3.48m/s

b)-AT^2/2m + gT= 0

T=2mg/A= (2×3×9.81)/38

T= 1.549m

X(T)= (1/2×9.81×1.549^3)- (38×1.549^3/6×3)

X(T)= 11.768- (141.23/18) = 11.768 - 7.85= 3.92m

C) 1/2gT''^2 - AT''^3/6m =0

The only non trivial solution is T''= 3mg/A

T=(3×3×9.81)/38 = 2.32m

D) V = 9.81×3) - (38×3^2/6)

V= 29 - 5.667= 23.33m/s

6 0
3 years ago
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In future larger telescopes such as Thirty Meter Telescope and EELT will will make it look like a small telescope.

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agasfer [191]
Exposure of a Photographic plate to Uranium in a closed space along with a metal that prevented the rays from passing through best helped becquerel determine Uranium radiates rays.
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3 years ago
A car travels for 10s at a steady speed of 20m/s along a straight road. A traffic light changes to red, and the car slows down w
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