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anyanavicka [17]
3 years ago
13

An engine raises 120kg of water through a height of 40m in 30s what is the power of the engine?(g=10m/s2​

Mathematics
2 answers:
oee [108]3 years ago
7 0

Answer:

4800J/s

Step-by-step explanation:

m = 120kg

H = 40m

t = 30sec

Input energy = 120 × g × H = mgn

Ei  = 120 × 40 × 30 = 144000J

Energy per sec, E1  = 144000  ÷ 30 = 4800J/s

Power input = 4800J/s  

lutik1710 [3]3 years ago
3 0

Answer:

4800J/s

Step-by-step explanation:

good luck have a nice day

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Which transformations could have occurred to map triangle ABC triangle A^ * B^ n C^ prime
zloy xaker [14]

Reflection and dilation is the transformation which will occur to map triangle ABC triangle to A^ * B^ n C^ prime.

<h3>What is a Triangle?</h3>

This refers to a plane figure which has features such as three angles and three sides.

Reflection and dilation involves flipping and enlargement/reduction respectively which gives rise to the sides being changed.

Read more about Triangle here brainly.com/question/1058720

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3 0
2 years ago
Matter is in a liquid state when its temperature is between its melting point and its boiling point. Suppose that some substance
ANTONII [103]

Answer:

  -35.626 < temperature < 733.928 . . . . degrees F

  (-35.626, 733.928)

Step-by-step explanation:

It is convenient to let a calculator evaluate the expression for converting °C to °F.

  -35.626 < temperature < 733.928 . . . . degrees F

  (-35.626, 733.928) . . . . . . . . . . . . . . . . . in interval notation

_____

The given relation is C = 5/9(F -32). The inverse relation is F = 9/5C +32. That is the relation we need to use to answer this question.

4 0
4 years ago
In the diagram, the measure of angle 6 is 98°. A transversal intersects 2 lines to form 8 angles. Clockwise from top left, the a
ser-zykov [4K]

Answer: 82°

Step-by-step explanation:

6 = 98°

180° - 98° = <em><u>82°</u></em>

3 0
3 years ago
Read 2 more answers
you bought 5 chocolate bars and 8 blow pops for $23.25 your sister bought 2 chocolate bars and 13 blow pops for 21.55 how much d
kirza4 [7]

Answer:

  • $2.65

Step-by-step explanation:

Let chocolate bar = c and blow pops = b

<u>As per given we have equations below:</u>

  • 5c + 8b = 23.25
  • 2c + 13b = 21.55

<u>13 times the first equation minus 8 times the second to eliminate b and find c:</u>

  • 13(5c + 8b) - 8(2c + 13b) = 13(23.25) - 8(21.55)
  • 65c - 16c = 129.85
  • 49c = 129.85
  • c = 129.85/49
  • c = 2.65

Each chocolate bar costs $2.65

7 0
3 years ago
A charity gala is held in a hotel ballroom each year. The cost is $150 for the ballroom and an
Serga [27]

Answer: x=100$

Step-by-step explanation:

use the slope formula

y=mx+b

plug in what you have

y=2400, m=22.50x, b=150

solve for x

2400=22.50x+150

subtract 150 from both sides

2250=22.50x

divide 22.50 x from both sides

x=100 people

don't forget your units :)

5 0
3 years ago
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