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MrRissso [65]
4 years ago
10

You do a pull-up, lifting yourself by 0.5 in 2 seconds. If your weight is 600 N, how much work did you do and what was your powe

r output during lifting
Mathematics
1 answer:
Basile [38]4 years ago
5 0

Answer:

1.) 15.24 J

2.) 7.62 W

Step-by-step explanation:

Given that You do a pull-up, lifting yourself by 0.5 in 2 seconds. If your weight is 600 N,

Convert inches into metres

1 inches = 0.0254 metres

Work done = Force × distance

Work done = 600 × 0.0254

Work done = 15.24 J

Power is the rate at which work is done.

That is,

P = WD / time

Power = 15.24 / 2

Power = 7.62 W

Therefore, 15.24 Joule of work done must be done and 7.62 watt of power output must be required to lift the yourself.

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y=x vertical compression compression by a factor of 1/7 please compress the equation of y=x by a vertical compression of 1/7
damaskus [11]

Answer: y = 1/7(x) or y = x/7

Step-by-step explanation:

Hey there! Thank you for submitting your question to Brainly!

In order to vertically compress the equation y = x by 1/7, we would simply need to multiply x by 1/7. Therefore, this gives us the equation y=1/7(x) or y=x/7.

Hope this helps!! :)

6 0
3 years ago
Use the x-intercept method to find all real solutions of the equation.x^3-10x^2+27x-18=0
OlgaM077 [116]

Answer:

Step-by-step explanation:

Real solutions equal

x=6,3,1

Hope that helps!

3 0
3 years ago
Read 2 more answers
In the figure below ∠B=63∘. What is the measure of arc DB in degrees? (4 points) 27 126 54 63
Rainbow [258]

Answer:

54

Step-by-step explanation:

63 x 2 = 126

180 - 126 = 54

3 0
3 years ago
Graph the function. compare the graph with the graph of y = (1/8)^x<br><br>How do I do this one?
DENIUS [597]
............
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7 0
3 years ago
given that oa=2x+9y ob=4x+8y and cd= 4x-2y, explain the geometrical relationships between the straight lines ab and cd mathswatc
tangare [24]

The geometrical relationships between the straight lines ab and cd

is the straight line ab is parallel to the straight line cd

Step-by-step explanation:

Let us revise some notes:

  • If a line is drawn from the origin and passes through point A (a , b), then the equation of OA = ax + by
  • If a line is drawn from the origin and passes through point B (c , d), then the equation of OB = cx + dy
  • To find the equation of AB subtract OB from OA, then AB = (c - a)x + (d - b)y
  • The slope of line AB = \frac{-coefficient(x)}{coefficient(y)}

∵ oa = 2 x + 9 y

∵ ob = 4 x + 8 y

∵ ab = OB - OA

∴ ab = (4 x + 8 y) - (2 x + 9 y)

∴ ab = 4 x + 8 y - 2 x - 9 y

- Add like terms

∴ ab = (4 x - 2 x) + (8 y - 9 y)

∴ ab = 2 x + -y

∴ ab = 2 x - y

∵ The slope of ab = \frac{-coefficient(x)}{coefficient(y)}

∵ Coefficient of x = 2

∵ Coefficient of y = -1

∴ The slope of ab = \frac{-2}{-1}=2

∵ cd = 4 x - 2 y

∵ Coefficient of x = 4

∵ Coefficient of y = -2

∴ The slope of cd = \frac{-4}{-2}=2

∵ Parallel lines have same slopes

∵ Slope of ab = slope of cd

∴ ab // cd

The geometrical relationships between the straight lines ab and cd

is the straight line ab is parallel to the straight line cd

Learn more;

You can learn more about the parallel lines in brainly.com/question/10483199

#LearnwithBrainly

4 0
3 years ago
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