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Sedbober [7]
3 years ago
10

The ancient Egyptians build their pyramids using a ramp to move the heavy blocks up. The length of the ramp was 25m and the heig

ht was 10m the weight of the block was 250kg and the effort weight is 180kg. What is the efficiency of the inclined plane
Physics
1 answer:
hammer [34]3 years ago
5 0

Answer:

Efficiency of the inclined plane is 56%

Explanation:

efficiency = (work output / work input) x 100%

efficiency = ([load force x load distance] x [effort force x effort distance]) x 100%

efficiency = (250 kg x 10 m) / (180 kg x 25 m) x 100%

efficiency = (2500kg/m) / (4500kg/m) x 100%

efficiency = 0.555 = 0.56 x 100%

efficiency = 56%

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Which of the following devices could be used to create a position--time graph for an object? 
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D none of the above

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4 years ago
Match each type of wave to the way it moves.
oee [108]

Answer:

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Explanation:

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3 years ago
A student wishes to record a 7.5-kilogram watermelon colliding with the ground. Calculate how far the watermelon must fall freel
algol [13]

Answer:

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Explanation:

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A body that moves with constant acceleration means that it moves in "a uniformly accelerated motion", which means that if the velocity is plotted with respect to time we will find a line and its slope will be the value of the acceleration, it determines how much it changes the speed with respect to time.

When performing a mathematical demonstration, it is found that the equations that define this movement are as follows.

\frac {Vf^{2}-Vo^2}{2.g} =Y

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Y= distance traveled(m)

solving

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the distance traveled by watermelon is 42.86m

       

5 0
4 years ago
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Explanation:

7 0
3 years ago
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