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lakkis [162]
3 years ago
5

According to the law of conservation of energy, which statement must be

Physics
1 answer:
alina1380 [7]3 years ago
7 0

Answer: THE ANSWER IS C!

The total energy of a system can decrease only if energy leaves the system.

Explanation: Apex!

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To solve this problem, we must basically count the total energy lost converting all the values given in the international system.

The energy loss is given by both 124KJ and 124food heats.

Since the energy conversion we know that 1 food calories is equal to 4,184J. So:

124 calories (\frac{4.184J}{1 calories}) = 518.816J = 0.518816kJ

Therefore the total energy lost will be

E_{lost} = 124 KJ + 0.518816 KJ

E_{lost} = 124.518KJ

Therefore the total energy lost to the surroindings in form of heat is 124.518kJ

3 0
3 years ago
A car has a applied force of 120 N and experiences a friction force of 20 N. The mass is 20 kg. The acceleration is
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Acceleration = 100/20 = 5 m/s^2
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Evaluate the gravitational potential energy between two 5.00-kg spherical steel balls separated by a center-tocenter distance of
navik [9.2K]

Answer:

U = 8.30×10-⁹J

Explanation:

m1 = m2 = 5.00kg masses of the spheres

d = 15.0cm = 15×10-²m

r = 5.10cm = 5.10×10-²m

R = d + r = 15×10-² + 5.10×10-²

R = 20.10 ×10-²m = 0.201m

G = 6.67×10-¹¹Nm²/kg²

U = Gm1×m2/R = potential energybetween the spheres

U = 6.67×10-¹¹×5.00×5.00/0.201

U = 8.30×10-⁹J

7 0
3 years ago
If you weigh 882 N on EARTH (HINT: What number do we ALWAYS use for gravity on Earth), what is your mass? ​
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882 divided by 9.81 (this is acceleration due to gravity) it equals 89.91
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One advantage of a fever is that it can slow down the
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