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Naddika [18.5K]
4 years ago
11

#15

Physics
2 answers:
irakobra [83]4 years ago
8 0
It’s 5 kg because the formula is m=F/a, which is 20/4, and you’ll end up with 5 kg.
jonny [76]4 years ago
8 0
The correct answer is 5 kg
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A rectangular block weighs 240 N. the area of the block in contact with the floor is 20 cm2.calculate the pressure on the floor(
maks197457 [2]

Answer:

12 N/cm²

Explanation:

From the question given above, the following data were obtained:

Weight (W) of block = 240 N

Area (A) = 20 cm²

Pressure (P) =?

Next, we shall determine the force exerted by the block. This can be obtained as follow:

Weight (W) of block = 240 N

Force (F) =.?

Weight and force has the same unit of measurement. Thus, we force applied is equivalent to the weight of the block. Thus,

Force (F) = Weight (W) of block = 240 N

Force (F) = 240 N

Finally, we shall determine the pressure on the floor as follow:

Force (F) = 240 N

Area (A) = 20 cm²

Pressure (P) =?

P = F/A

P = 240 / 20

P = 12 N/cm²

Therefore, the pressure on the floor is 12 N/cm².

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3 years ago
Would it be correct to say the Doppler Effect is the apparent change in the speed of a wave due to the motion of the source?
tatiyna
Yes that would be correct. But if its an essay I'd be a bit more elaborate and give examples.
6 0
3 years ago
Read 2 more answers
Convert 89 degrees Fahrenheit to Celsius
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89 degrees Fahrenheit would be 31.7 degrees Celsius!
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Which of the following experiments could be used to determine the inertial mass of a block? A. Place the block on a rough horizo
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Answer:

D, using a spring scale to exert a force on the block. Measure the acceleration of the block and the applied force

Explanation:

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-> 112000 m/h

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7 0
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