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Alik [6]
2 years ago
12

Wanda lifts a 60-kg crate onto a truck bed 1 meter high in 3 seconds. Vision lifts sixty 1-kg boxes onto the same truck in a tim

e of 2 minutes. Which of the following statements is true?.
SAT
1 answer:
morpeh [17]2 years ago
6 0

They do the same amount of work, but Wanda operates at a higher power level.

<h3>Work</h3>

Work is the amount of energy needed to move an object a particular distance.  Power is the work done per unit of time.

Let acceleration due to gravity (g) = 10 m/s²

For Wanda:

Work = mass * g * height = 60 kg * 10 m/s² * 1 m = 600 J

Power = work / time = 600 J / 3 s = 200 J/s

For Vision:

Work = mass * g * height = (60 * 1 kg) * 10 m/s² * 1 m = 600 J

Power = work / time = 600 J / 120 s = 5 J/s

They do the same amount of work, but Wanda operates at a higher power level.

Find out more on Work at: brainly.com/question/25609681

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If Adam eats 95 apples a day. How many times does he use the restroom in a week?
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ummm is there anything else and whyyyyy? is this a math problem????? Probably. I think that many apples would very negatively impact his health.

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Which of the following statements regarding the moon and earth is correct.
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please the question is choice or what

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Dimas [21]
It is true I guess right?
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What is likely negative affect on the earth extra carbon dioxide is added to our atmosphere
konstantin123 [22]

Answer:

It will change weather patterns and destroy ecosystems.

Explanation:

Carbon dioxide, while not being the most power, is the most common greenhouse gas. A greenhouse gas helps to trap longwave radiation from leaving the Earth’s atmosphere and is enhancing global warming. We say enhanced global warming due to the Earth warming through natural reasons too. Several changes occur due to this temperature increase. Sea ice melting causes freshwater to enter the sea. An increase in sea levels can cause coastal flooding, increased erosion and a higher frequency and power of storms. Water density is linked to salinity. By introducing more freshwater the salinity decreases in the north and south of the Earth. If the oceanic currents change this will cause the weather to become more extreme during seasonal changes in many regions around the world. While humans can adapt their living conditions to suit the climate, many animals and plants can not. Therefore, enhanced global warming will cause the loss of many ecosystems around the world, including coral reefs.  

8 0
3 years ago
Lydia graphed δlmn at the coordinates l (0, 0), m (2, 2), and n (2, −1). She thinks δlmn is a right triangle. Is lydia's asserti
nadya68 [22]

No product results in -1, hence δlmn is NOT a right triangle showing that  lydia's assertion is incorrect

<h3>Perpendicular lines</h3>

In order to determine whether triangle lmn  is right-angled, we need to determine the slope of lm, ln, and mn first as shown:

For the slope of lm:

m_{lm} = \frac{2-0}{2-0}\\ m_{lm} =2/2\\m_{lm} =1

For the slope of ln:

m_{ln} = \frac{-1-0}{2-0}\\m_{ln} =-1/2\\

For the slope of mn:

m_{mn} = \frac{-1-2}{2-2}\\m_{ln} =-3/0 = \infty\\

  • If any of the two lines is perpendicular, hence the triangle lmn is right-angled.

  • To check, we will take the product of the slopes and see if it is equivalent to -1.

Product of slope lm and ln

m_{lm}\times m_{ln} = 1 \times -1/2\\m_{lm}\times m_{ln} = -1/2

Since no product results in -1, hence δlmn is NOT a right triangle showing that  Lydia's assertion is incorrect

Learn more on slopes here: brainly.com/question/3493733

8 0
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