3 years ago

What we see as "moonlight" is really reflected sunlight. True or False?

1 answer:

6 0

Yes, this is true. The only celestial body in the Milky Way universe that produces light is the Sun. It is the sole source of light for all the other planets and satellites. Our moon only 'borrows' light from the Sun. The surface of the moon acts as the mirror at which the Sun's light is reflected.

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A force that is doing work on a ball when that ball is falling through the air.

Ronch [10]

Answer:

i think the answer is gravity

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2 years ago

What is the direction of a vector with an x component of -12 m and a y component of -15 m?

dusya [7]

Answer:

$51.34^{\circ}$

Explanation:

Given that,

x component of a vector = -12 m

The y component of a vector = -15 m

We need to find the direction of a vector. The direction of a vector is given by :

$\tan\theta=\dfrac{y}{x}$

Put all the values,

$\tan\theta=\dfrac{-15}{-12}\\\\\theta=\tan^{-1}(\dfrac{-15}{-12})\\\\\theta=51.34^{\circ}$

So, the direction of vector is $51.34^{\circ}$ to x component.

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3 years ago

How to find the total displacement of an object ?

OLga [1]

Answer:

it can be calculated by measuring the final distance away from a point, and then subtracting the initial distance

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Cross section of a solid circular rod is subject to a torque of t = 2.7 kn⋅m . if the diameter of the rod is d = 8 cm , what is

polet [3.4K]

Shear Stress= Force along the tangent/ Area
= 2700/π*r^2
=2700/3.14*16
=54

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2 years ago

What is the formula of a compound formed between strontium (Sr) and chlorine (Cl)? (2 points)

Sidana [21]

The chemical formula of the compound of strontium and chlorine would be SrCl2. It is a salt of the strontium ion and chloride ion and a white crystalline compound. When burned, it produces a bright red hue. That is why it found some application in fireworks.
Read more on Brainly - brainly.com/sf/question/4154091

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3 years ago