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ANTONII [103]
2 years ago
9

If a mason can make 12 hollow blocks in 3 h, how many hollow blocks can he make in 10 h?

Mathematics
1 answer:
antoniya [11.8K]2 years ago
7 0

Answer:

40 hollow blocks

Step-by-step explanation:

12/3= 4 hollow blocks per hour

10x4=40 hollow blocks in 10 hours

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a 1 kg ball has 10 joules of kinetic energy and starts to roll up a hill how far up the hill will it be when it stops
AURORKA [14]

Answer:

<em>The ball will roll upto </em><em>1 m.</em>

Step-by-step explanation:

A 1 kg ball has 10 joules of kinetic energy and starts to roll up a hill.

As along the hill the ball rises up, it loses its kinetic energy. The kinetic energy is converted to potential energy.

According to the law of conservation of energy, the kinetic energy plus the potential energy equals a constant.

Here given kinetic energy as 10 J, so this energy will get converted to potential energy.

We know that, potential energy is

P.E=m\cdot g\cdot h

where,

m is the mass, g is the acceleration due to gravity and h is the height.

Putting the values,

\Rightarrow 10=1\times 10\times h

\Rightarrow 10=10 h

\Rightarrow h=1\ m

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Complementary angles sum upto 90°
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Read 2 more answers
The ratio of the measures of the sides of a triangle is 5:7:8 and has a perimeter of 320 inches. What is the measure of each sid
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<span>The ratio of the measures of the sides of a triangle is 5:7:8, and its perimeter is 40 inches. what is the measures of each side of the triangle 
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