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Greeley [361]
3 years ago
14

How did the temperature structure of the solar nebula determine planetary composition?

Physics
1 answer:
STALIN [3.7K]3 years ago
3 0

Explanation:

The temperature of the solar nebula was decreasing as it moved away from its center. Therefore, only heavy elements could condense in the inner solar system and terrestrial planets could not form with light elements, such as gases. In the outer solar system, the Jovian planets formed mostly with gases, since temperatures were too low to allow rocky compositions.

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While you are looking at the image of your feet in a plane mirror, you see a scratch in the glass. What is the approximate heigh
Montano1993 [528]

Answer:

1.75 / 2 = 0.875 m

Explanation:

Provided the mirror is vertical and you are standing upright.

It could be most any altitude if the mirror is allowed any orientation.

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3 years ago
Which is an example of a physical change?
Lilit [14]
Answer :
b - cake baking

explanation :
because the rest of the options are changing due to chemical reactions , when you bake a cake your developing it’s actions by touching it physically
6 0
3 years ago
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As wavelength increase, frequency decrease
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A horizontal force of 40N is needed to pull a 60kg box across the horizontal floor at which coefficient of friction between floo
Mazyrski [523]

Answer:

Coefficient of friction is 0.068.

Work done is 320~J.

Explanation:

Given:

Mass of the box (m): 60 kg

Force needed (F): 40 N

The formula to calculate the coefficient of friction between the floor and the box is given by

F=\mu mg...................(1)

Here, \mu is the coefficient of friction and g is the acceleration due to gravity.

Substitute 40 N for F, 60 kg for m and 9.80 m/s² for g into equation (1) and solve to calculate the value of the coefficient of friction.

40 N=\mu\times60 kg\times9.80 m/s^{2} \\~~~~~\mu=\frac{40 N}{60 kg\times9.80 m/s^{2}}\\~~~~~~~=0.068

The formula to calculate the work done in overcoming the friction is given by

W=Fd..........................(2)

Here, W is the work done and d is the distance travelled.

Substitute  40 N for F and 8 m for d into equation (2) to calculate the work done.

W=40~N\times8~m\\~~~~= 320~J

8 0
3 years ago
How much time does it take light to travel from the moon to the earth, a distance of 384000 km?
Natali5045456 [20]

Answer:

1.28second

Explanation:

The speed of light is constant everywhere, it is

299,792,458m/s=299,792.458km/s

Therefore it takes

\frac{384000}{299792458}  = 1.28sec

6 0
1 year ago
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