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Blizzard [7]
3 years ago
13

A student lifts their 75 N backpack 0.50 m onto their chair. How much work is done?

Physics
1 answer:
Alexandra [31]3 years ago
7 0

Answer:

37.5 J

Explanation:

With work done equation: W=Fs

W=75*0.50=37.5 J

or use mgh=(75)(0.5) which is the same

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A box of spherical jawbreaker candies is 23 g and its volume is 32.3 cm3. If the average mass of a single jawbreaker is 0.94 g,
Alex777 [14]

The radius of each jawbreaker is approximately 0.68 cm.

<h3>Volume of a sphere;</h3>
  • v = 4 /3 πr³

where

r = radius

Therefore,

23 g  = 32.3 cm³

0.94 g  = ?

cross multiply

volume of a single jawbreaker = 32.3 × 0.94 / 23 = 30.362 / 23 = 1.32 cm³

Therefore,

volume of each jawbreaker = 4 /3 πr³

1.32 = 4 / 3 × 3.14 × r³

r³ = 1.32 /4.18666666667

r³ = 0.31533683707

r = ∛0.31533683707

r = 0.680651651 = 0.68

Therefore, the radius of each jawbreaker is approximately 0.68 cm.

learn more on radius here: brainly.com/question/19172427

5 0
3 years ago
You are explaining to friends why astronauts feel weightless orbiting in the space shuttle, and they respond that they thought g
TiliK225 [7]

Answer:

Only 9% weaker

Explanation:

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3 years ago
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How does density affect the behavior of an object in a liquid or a gas?
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According to Archimedes' Principle, an Object's density determines the depth it will get by displacing the liquid or gas molecules... More the density, more it's depth.
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If the fan blades rattle while the fan is turning, you can stop the noise by
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I beleve the answer is D).
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4 years ago
During a chemical reaction, increasing the temperature often
emmasim [6.3K]

Answer: Increase Reaction Rates

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