3 years ago

Five different forces act on an object. Is it possible for the net force on the object to be zero?

Physics

1 answer:

bazaltina [42]3 years ago

4 0

No because there must be an even # if their is an even amount one of the forces isn’t being cancelled

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Harry and Sally are sitting on opposite sides of a circus tent when an elephant trumpets a loud blast. If Harry experiences a so

FromTheMoon [43]

To solve this problem we will start from the definition of the decibels which refers to the log relationship of the intensities, mathematically each decibel of the people can be described as follows

$dB_1 = 10log(\frac{I_1}{I_o})$

$dB_2 = 10log(\frac{I_2}{I_o})$

$dB_1 - dB_2 = 10log(\frac{I_1}{I_2})$

$\frac{67-45}{10} = log(\frac{I_1}{I_2})$

$log(\frac{I_1}{I_2}) = \frac{11}{5}$

For properties of the logarithm then we have that,

$\frac{I_1}{I_2} = 10^{11/5}$

$\frac{I_1}{I_2} = 158.48$

We have the relation

$\frac{r_2^2}{r_1^2} = 158.48$

$\frac{r_2}{r_1} = \sqrt{158.48}$

$\frac{r_2}{r_1} = 12.58$

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3 years ago

What is unit? write down the unit of mass temperature power and density

emmainna [20.7K]

Answer:

The SI unit for length is meters(m), for mass is kilograms(kg), for volume is cubic meter(m^3), for density kilogram per cubic meter(kg/m^3), for time is seconds(s), and for temperature is kelvins(K).

Explanation:

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3 years ago

What are 3 facts you learned about the periodic table:

d1i1m1o1n [39]

Answer: the rarest element is Francium. J is not on the periodic table. also Dmitri Mendeleev proposed the periodic table.

Explanation: Kinda looked the last one up.

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3 years ago

What is the difference between mechanical digestion and chemical digestion in the mouth

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