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2 years ago

Why is the speed of the earths plate measured in centimeter per year instead of in meter per second?

1 answer:

Nutka1998 [239]2 years ago

5 0

Just to get a more convenient number.

1 centimeter per year is the same as 0.000000000317 meter per second.

Measured in centimeters per year, you get a number that's much easier
to write down, remember, and tell other people about.

Exactly the same reason that we describe the speed of a snail in
feet per minute, not miles per hour.

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4. Why do you think people in south Louisiana specialize in seafood?

lbvjy [14]

Answer:

gang

Explanation:

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2 years ago

Ahab has been sent to the shops by his mother. The shops are 1200 m from his

Iteru [2.4K]

Answer:

it will take him 200secs to run to the shops

(btw 200 seconds is 3minutes and 20secs)

Explanation:

distance = speed x time

time = distance / speed

1200 ÷ 6 = 200

time = 200seconds

hope this helps

brainliest please?

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2 years ago

A force of 100 newtons was necessary to lift a rock. a total of 150 joules of work was done. how far was the rock lifted

Makovka662 [10]

Answer:

1.5m

Explanation:

150÷100=1.5

Work done ÷force

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3 years ago

The gravitational force law, deduced by Newton in the 1660's, is remarkably similar to Coulomb's law. Recall that the universal

viktelen [127]

Answer:

a. $F=7.83\times 10^{-51} N$

b.Attractive

Explanation:

We are given that

$F=\frac{GM_1M_2}{R^2}$

$G=6.67\times 10^{-11} Nm^2/kg^2$

Mass of an electron, $M_1=9.11\times 10^{-31} kg$

Mass of proton, $M_2=1836\times 9.11\times 10^{-31} kg$

Distance between electron and proton,R= $3.602nm=3.602\times 10^{-9} m$

$1nm=10^{-9} m$

a.Substitute the values then we get

$F=\frac{6.67\times 10^{-11}\times 9.11\times 10^{-31}\times 1836\times 9.11\times 10^{-31}}{(3.602\times 10^{-9})^2}$

$F=7.83\times 10^{-51} N$

b.We know that like charges repel to each other and unlike charges attract to each other.

Proton and electron are unlike charges therefore, the force between proton and electron is attractive.

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2 years ago

The word atom comes from a Greek word that means “able to duplicate”.

Gnoma [55]

<span>The statement, The word atom comes from a Greek word that means “able to duplicate”, is false. The greek word for atom is atomos. The a- in atom means “not” and –tom means “cut”. So it is not ot cut or it cannot be cut. It is common definition is indivisibility. This definition is defined by the philosopher Democritus. He observed that as he cut the sugar cube into smaller fraction, it reduces to nothing that cannot be seen in the eye. And so he proposed that definition.</span>

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2 years ago