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Naddika [18.5K]
2 years ago
6

PLEASEE GUYS HELP I BEG YOU

Physics
1 answer:
raketka [301]2 years ago
7 0
0.520155077123917 i believe?? hope this helps
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A rock is being twirled in a circle on the end of a string. The string provides the centripetal force needed to keep the ball mo
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No

Explanation:

The force of tension exerted by the string on the rock acts as centripetal force, so its direction is always towards the centre of the circle.

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4 0
2 years ago
A Carnot engine whose high-temperature reservoir is at 464 K has an efficiency of 25.0%. By how much should the temperature of t
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Answer

given,

high temperature reservoir (T_c)= 464 K

efficiency  of reservoir (ε)= 25 %

temperature to decrease = ?

increase in efficiency = 42 %

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 T_C= (1 - 0.25) \times 464

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now,

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