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steposvetlana [31]
3 years ago
11

A piano has a mass of 99 kg. What is the weight of the piano?

Physics
1 answer:
NemiM [27]3 years ago
8 0

Answer:

D.\ 970\ N

Explanation:

Given:

Mass of Piano: 99kg

Required:

Calculate its weight

The weight of an object is calculate as thus;

Weight = Mass\ (m) * Acceleration\ due\ to\ gravity\ (g)

m = 99kg and g = 9.8m/s^2

The formula becomes

Weight = 99kg * 9.8m/s^2

Weight = 970.2\ kgm/s^2

Weight = 970.2\ N

Weight = 970\ N <em>Approximated</em>

<em />

<em>Hence, the weight of the piano is 970N</em>

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If the area of an iron rod is 10 cm by 0.5 cm and length is 35 cm. Find the value of resistance, if 11x10^-8 ohm.m be the resist
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