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3 years ago

Explain how the planets in the solar system formed

1 answer:

6 0

So we want to know how did the planets form in the Solar system. So the current most accepted explanation is accretion. First the Sun formed, and what has left was a disk made out of gas and dust which later formed the planets trough attractive gravitational force.

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In an experiment the mass of a calorimeter is 36.35 g . Express in micrometer ,millimetre and kg.

Andru [333]

Answer:

1. 36.35 g = 36.35E15 micrometer.

II. 36.35 g = 363.5 millimetre.

III. 36.35 g = 0.03635 kilogram.

Explanation:

Given the following data;

Mass of calorimeter = 36.35 grams

To convert the mass in grams (g) to;

I. Micrometer

Conversion:

1 g = 1 exp 15 um

36.35 g = X um

Cross-multiplying, we have;

X = 36.35 * 1 exp 15 = 36.35 exp 15 um

36.35 g = 36.35E15 micrometer

II. Millimetre

Conversion:

1 g = 1 milliliter

36.35 g = X milliliter

Cross-multiplying, we have;

X = 36.35 * 1 = 36.35 milliliter

Next, we would convert milliliter to millimetre;

1 milliliter = 10 millimetre

36.35 milliliter = X millimetre

Cross-multiplying, we have;

X = 36.35 * 10 = 363.5 millimetre

36.35 g = 363.5 millimetre

III. Kilogram

Conversion:

1000 grams = 1 kilogram

36.35 g = X kilogram

Cross-multiplying, we have;

X * 1000 = 36.35 * 1

Dividing both sides by 1000, we have;

X = 36.35/1000 = 0.03635 kilogram

36.35 g = 0.03635 kilogram

Note:

g is the symbol for grams.
Exp (E) means exponential = 10
um is the symbol for micrometer.

4 0

3 years ago

How much force is required to move a tractor 60m, when using 250J of work?

lianna [129]

Answer:

Work done,W= 250J

Displacement , s = 60

We know that, Work done = Force x displacement

i.e , W = Fxs

250 J = F x 60m

F = 250/60

=4.16 N

Hence , 4.16 N of Force is applied on the body.

5 0

2 years ago

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As the earth rotates through one revolution, a person standing on the equator traces out a circular path whose radius is equal t

mrs_skeptik [129]

Answer:

The average speed will be "1038 mph".

Explanation:

Period for one revolution is:

T = 24 hours

= 86,400 sec

x = c = 2πr

The given values is:

r = 6.38×10⁶ m

Now,

⇒ $T=\frac{2 \pi r}{v}$

Or,

⇒ $v=\frac{2 \pi r}{T}$

On substituting the values, we get

$=\frac{2 \pi (6.38\times 10^6)}{86,400}$

$=464 \ min/sec$

$=(464 \frac{min}{sec}) (\frac{3600 \ sec}{1 \ hour} )(\frac{1 \ mi}{1609 \ m} )$

$=1038 \ mph$

6 0

3 years ago

Which equation describes the cousins function for a right triangle ?

loris [4]

cos 30° = x/15

i believe is the answer

3 0

3 years ago

When hot and cold air meet, the hot air rises to the top. Which process causes the hot air to rise?

sweet-ann [11.9K]

I took this test before, aren't there answer choices? :)

5 0

3 years ago

Read 2 more answers