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Drupady [299]
2 years ago
6

Help me someone please !!!!Will mark Brianliest !!!!!!!!!!!!!!!!

Mathematics
1 answer:
miskamm [114]2 years ago
8 0

Answer:

try this -4+1

Step-by-step explanation:

hope it helps

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A body and tackle with a velocity ratio of 5 is used to raise a mass of 50kg through a vertical distance of 20n at a steady rate
matrenka [14]

a. Distance moved by effort = 1 meter

b. Work done by effort = 80 Joules

c. Losses in energy = 18 Joules

<h3>How to determine the parameters</h3>

a. Note that velocity ratio is defined as the ratio of a distance through which any part of a machine moves to the distance moved by its parts

Velocity ratio = distance moved by the effort/distance moved by the body

Where velocity ratio = 5

vertical distance = 20cm

Distance moved by effort = 5 × 0. 20 = 1 meter

b. Formula for work done is given as ;

Work done = Effort × distance moved by effort

Work done = 80 × 1

Work done = 80 Newtons

c. First, let's find the work output

Work output = m g h

Work output = 50 × 9.8 × 0. 20

Work output = 98 Joules

Losses in energy = Work output - work done

Losses in energy = 98 - 80

Losses in energy = 18 Joules

Learn more about work done here:

brainly.com/question/25573309

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7 0
2 years ago
621/87 can anybody help me
Ilia_Sergeevich [38]

Answer:

621/87=7.13793103448

Step-by-step explanation:

I divided it and got this answer

5 0
3 years ago
Read 2 more answers
What is the multiplicative inverse of 1/2
GuDViN [60]

   Multiplicative inverse of 1/2 = 2/1 = 2


Thus, the multiplicative inverse of 1/2 is 2.

4 0
3 years ago
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A sweatshirt is $67.50, if
lesya692 [45]

Answer:

a. $3.36

b. $70.86

Step-by-step explanation:

5% of $67.50 is $3.36

$67.50 + $3.36 = $70.86

4 0
3 years ago
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Lucas took his bike to a local park to ride on some bike trail.Trail A is 6 3/4 miles long.Trail B is 8 1/2 miles long. How many
Eddi Din [679]

Answer: Trial B is 1\dfrac{3}{4} miles longer then Trail A.

Step-by-step explanation:

Length of Trail A = 6\dfrac34 miles

= \dfrac{24+3}{4}  miles = \dfrac{27}{4} miles.

Length of Trail B = 8\dfrac12 miles

= \dfrac{16+1}{2} miles = \dfrac{17}{2} miles.

Trial B is longer then Trail A by \dfrac{17}{2}-\dfrac{27}{4} miles

=\dfrac{17\times2}{2\times2}-\dfrac{27}{4} miles

=\dfrac{34}{4}-\dfrac{27}{4} miles

=\dfrac{7}{4} miles

=1\dfrac{3}{4} miles

Hence, Trial B is 1\dfrac{3}{4} miles longer then Trail A.

4 0
2 years ago
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