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Marrrta [24]
3 years ago
15

Afootball of mass 550g is at rest on the ground the football is kicked with a force of 108 newton the footballers boot is in con

tact with the ball for 0.3 minute what is the kenitic
energy of the ball​
Physics
1 answer:
d1i1m1o1n [39]3 years ago
6 0

If "0.3 minute" is correct, then it's 9,543,272 Joules.

If it's supposed to say "0.3 SECOND", then the KE is 2,651 Joules.

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An ideal gas Carnot cycle with air in a piston cylinder has a high temperature of 1200 K and a heat rejection at 400 K. During t
lana [24]

Answer:

The specific heat capacity is q_{L}=126.12kJ/kg

The efficiency of the temperature is n_{TH}=0.67

Explanation:

The p-v diagram illustration is in the attachment

T_{H} means high temperature

T_{L} means low temperature

The energy equation :

q_{h} = R* T_{h} in(V_{2}/V_{1})

   =0.287 * 1200 ln(3)

   =0.287*1318.33

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The specific heat capacity:

q_{L}=q_{h}*(T_{L}/T_{H})

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The efficiency of the temperature will be:

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