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3 years ago

Fill in the blanks

Physics

2 answers:

Inessa05 [86]3 years ago

5 0

Answer:

1. Gravity

2. Matter

Explanation:

According to Giant impact theory, when a Mars sized object collide with the Earth, the debris was held close to Earth due to its gravity. The debris collided frequently forming a planetesimal which grew in size overtime. Thereby, the gravity increased and pulled even more matter. The accretion of this matter eventually formed the Moon.

Nataly_w [17]3 years ago

4 0

Answer:

Word for the first blank: gravity

Word for the second blank: matter

Explanation:

The only way debris from the impact with Earth can be held close to Earth is due to a force. The only force that could be acting from Earth is "the force of gravity".

The gravitational pull of this new object being formed, increases proportional to its mass as more and more "matter" accumulates. And the accretion process is now on its way.

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nataly862011 [7]

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3 years ago

Sara walks part way around a swimming pool. She walks 50 yards north, then

Mekhanik [1.2K]

Answer:

20 Yards

Explanation:

|---20----|

| |

| 50 |50

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3 years ago

A cylindrical, 0.500-m rod has a diameter of 0.02 m. The rod is stretched to a length of 0.501 m by a force of 3000 N. What is t

Salsk061 [2.6K]

Answer:

Y = 4.775 x 10⁹ Pa = 4.775 GPa

Explanation:

First, we calculate the stress on the rod:

$stress = \frac{Force}{Area} = \frac{3000\ N}{\pi r^2} \\\\stress = \frac{3000\ N}{\pi (0.01\ m)^2}\\\\stress = 9.55\ x\ 10^6\ Pa = 9.55 MPa\\$

Now, we calculate the strain:

$strain = \frac{Change\ in Length}{Original\ Length}\\\\strain = \frac{0.501\ m - 0.5\ m}{0.5\ m}\\\\strain = 0.002\\$

Now, we will calculate the Young's Modulus (Y):

$Y = \frac{stress}{strain}\\\\Y = \frac{9.55\ x\ 10^6\ Pa}{0.002} \\$

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3 years ago

A long, straight, horizontal wire carries current toward the east. A proton moves toward the east alongside and just south of th

kondor19780726 [428]

Answer:

north direction.

Explanation:

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velocity = V i

Force F = q( V i x -B k)

= ( BqV) j or + ve j direction or along north direction

So direction of force will be along north direction.

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3 years ago

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1. True
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3 years ago

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