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NISA [10]
3 years ago
10

A space traveller weighs herself on Earth at a location where the acceleration due to gravity is 9.81 m / s 2 9.81 m/s2 and find

s a value of 557 N . 557 N. What is her mass?
Mathematics
1 answer:
Ivenika [448]3 years ago
4 0

Answer:

Therefore the mass of the object is 56.78 kg.

Step-by-step explanation:

Mass: Mass of an object is physical property.Mass of an object can't change with respect to place.

The S.I unit of mass is Kg

But the weight of an object changes with respect to place.

Weight= mass× gravity

The gravitational force varies  place to place.

For this reason the weight of an object is not constant.

The value of g is 9.8 m/s².

Unit of weight:

Weight = mass × gravity

           =Kg×m×s⁻²

           =N

Given, weight= 557 N , g= 9.81 m/s² and mass=?

Weight = mass × gravity

⇒557= mass× 9.81

\Rightarrow mass=\frac{557}{9.81}

⇒mass= 56.7787≈56.78

Therefore the mass of the object is 56.78 kg.

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Step-by-step explanation:

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Time  = T = 5 years

Now, as we know:

SIMPLE INTEREST  = \frac{P \times R \times T}{100}

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The lengths of lumber a machine cuts are normally distributed with a mean of 100 inches and a standard deviation of 0.3 inch. ​(
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Answer:

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Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 100

Standard Deviation, σ = 0.3

We are given that the distribution of lengths of lumber is a bell shaped distribution that is a normal distribution.

Formula:

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P(x > 100.12)

P( x > 100.12) = P( z > \displaystyle\frac{100.12 - 100}{0.3}) = P(z > 0.4)

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Calculation the value from standard normal z table, we have,  

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b) Standard error due to sampling:

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P( x > 100.12) = P( z > \displaystyle\frac{100.12 - 100}{0.0468}) = P(z > 2.564)

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Calculation the value from standard normal z table, we have,  

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