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nadezda [96]
2 years ago
9

10. CALCULATE: Find the amount of power used in each of the following examples. Show your calculations. a. You use a force of 10

N to move a box 100 m in 10 seconds. b. An athlete lifting weights does 900 J of work in 1 second. C. A truck does 30,000 J of work in 15 seconds. d. A fumiture mover uses a force of 150 N to push a large trunk 5 m across the floor in 5 seconds​

Physics
1 answer:
tekilochka [14]2 years ago
3 0

Answer:

please find  attached pdf

Explanation:

Download pdf
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How much heat is absorbed by a 71g iron skillet when its temperature rises from 11oC to 29oC?
diamong [38]
The right formula to use for this calculation is the heat capacity formula, 
Heat absorbed, Q = MCT, Where 
M = Mass of the substance = 71
C = Specific heat capacity for iron = 0.450 J/gc
T = Change in temperature = 29 - 11 = 18
Q = 71 * 0.450 *18 = 575.10
The amount of heat absorbed by the iron skillet is 575 J.
5 0
2 years ago
What type of image results when the object is located between 2f (2 focal lengths) and f (the focal point) of a convex lens?
VikaD [51]

Answer:

C

Explanation:

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you can remember it by R I M

hope this helps

4 0
3 years ago
Why the greater the depth, the greater the pressure?
Tatiana [17]
Well, the reason behind this is because water depth (I assume you're talking about water/liquid) increases the pressure because of the weight and volume of the water above. I hope this helps! ~Mia
7 0
3 years ago
Cori uses 475 J of energy from her muscles to push a bar 1 m on a weight machine at the gym. Between the bar’s motion , the heat
dimulka [17.4K]

Answer:

475

Explanation:

Cori does not exert any more force than 475 J, so 475 is the answer.

5 0
2 years ago
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A jogger runs 5.0 km on a straight trail
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Good for him !  If he's also adhering to a healthy diet, getting plenty of sleep, avoiding substance dependence, and minimizing his stress level, then he's doing everything he can to maximize his chances for a long, healthy, pleasant and rewarding fun life.  

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