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2 years ago

Which statement describes the chemical property of gold that results in its

Physics

1 answer:

makvit [3.9K]2 years ago

6 0

Answer:

Explanation:

Inert means it does not react with other things like oxygen ( to make oxide) or tarnish etc

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In 1996, astronomers discovered an icy object beyond pluto that was given the designation 1996 tl 66. it has a semimajor axis of

antoniya [11.8K]

Answer : 2446 years.

Explanation :

Length of semi major axis is, $a=84\ au= 1.496\times 10^{11}\ m$

According to Kepler's third law, square of time period of an orbit is directly proportional to the cube of the semi major axis.

i.e $T^2=\dfrac{4\pi^2}{GM}a^3$

where G is gravitational constant

M is mass of sun, $M=1.98\times 10^{30}\ Kg$

So, $T^2=\dfrac{4\times (3.14)^2}{6.6\times 10^{-11}Nm^2/Kg\times 1.98\times 10^{30}\Kg}$

$T^2=3\times 10^{-19}\times(84\times 1.496\times 10^{11})^3$

$T^2=3\times 10^{-19}\times 1984415.6\times 10^{33}$

$T^2=59532469.8\times 10^{14}\ s$

$T=7715.7\times 10^7\ s$

since, $1\ sec=3.17\times 10^{-8}\ years$

So, orbital period is approximately 2446 years.

7 0

4 years ago

The hydraulic lift in a car repair shop has an output diameter of 30 cm and is to lift cars up to 2000 kg. determine the fluid g

leonid [27]

Given Data: Diameter 'd' = 30 cm = 0.3 m Lifting Weight 'W' = mg = 2000*9.81 N = 19,620 N Calculations: Area of the lift 'A' = <span>pi\over4*d^2=pi\over4*0.3^2=0.07 m^2

Thank you for posting your question here at brainly. I hope the answer helps. </span>

4 0

3 years ago

Read 2 more answers

A roller coaster car is traveling on a track without any friction or added energy. The people, car, and track of the roller coas

Harlamova29_29 [7]

Answer:

This might not be right but i think it is "Speedway Coasters, Inc., reserves the right to exact a $50.00 fine"

Explanation:

3 0

4 years ago

Read 2 more answers

How producer gas is formed? write down its one use

alisha [4.7K]

Produce gas is a fuel gas that is used in industries for heating or boiling. It is produced by passing a stream of air or steam through burning coal. The major composition of the fuel gas is carbon monoxide due to incomplete combustion or the presence of water.

4 0

4 years ago

You push a cart with mass 15 kg forward, giving it an acceleration of 3 m/s2

NARA [144]

Answer:

45 N

Explanation:

F= ma (ie force is found by multiplying the mass of the object by its accerelation)

thus, F = 15 X 3 = 45 N

8 0

3 years ago