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4 years ago

Which statements describe what is occurring at t=5 seconds? Check all that apply

Physics

1 answer:

Alex73 [517]4 years ago

7 0

Answer: The object changed directions

The object sped up

Explanation:

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Planets orbit the Sun because _____.

amm1812

This is a poorly written question.

<span>Out of the choices listed, the first one is the only one that includes
a true statement ... the greater the mass of two objects, the greater
the gravitational attraction is between them.</span>

-- Newton's law of universal gravitation doesn't "suggest" that. It states it ...
boldly and unequivocally.

-- The law doesn't refer to the "greatness" of the mass of the two objects.
It refers to the product of their masses.

-- It's true that the law of universal gravitation can be massaged and
manipulated to reveal the existence of gravitational planetary orbits.
But there's a lot more to it than simply the masses.

For example ... the gravitational force between two objects is inversely
proportional to
(the distance between the objects)² .

It turns out that IF that exponent were not precisely, exactly 2.000000... ,
then gravitational orbits could not exist.

8 0

3 years ago

Where in a river would you find fish that are adapted to low light and low oxygen levels?

JulijaS [17]

No place in the river is characterized like this

7 0

4 years ago

Read 2 more answers

Yuliya22 [10]

As wavelength increase, frequency decrease

8 0

3 years ago

What is the value of the angle of refraction of light from a crown glass slab when the angle of incidence is 50°? The slab has a

Artemon [7]

The angle of refraction is $30.3^{\circ}$

Explanation:

Refraction is a wave phenomenon that occurs when a light wave passes through the interface between two mediums. When this occurs, the speed and the direction of the light wave change.

We can find the final direction of the refracted light in this problem by applying Snell's law:

$n_i sin \theta_i = n_r sin \theta_r$

where

$n_i, n_r$ are the index of refraction in the first and second medium, respectively

$\theta_i, \theta_r$ are the angle of incidence and refraction, respectively

In this problem, we have:

$n_i = 1.00$ (the first medium is air, which has a refractive index of 1.00)

$n_r = 1.52$ (index of refraction of crown glass)

$\theta=50^{\circ}$ is the angle of incidence

Solving for $\theta_r$ , we find the angle of refraction

$\theta_r = sin^{-1}(\frac{n_i sin \theta_i}{n_r})=sin^{-1}(\frac{(1.00)(sin 50^{\circ})}{1.52})=30.3^{\circ}$

Learn more about refraction and other wave phenomena:

brainly.com/question/3183125

brainly.com/question/12370040

#LearnwithBrainly

7 0

3 years ago

Explain how longitudinal waves and transverse waves are similar to each other and different from each other.

VashaNatasha [74]

Similar:
-
For transverse waves, the waves move in perpendicular direction to the source of vibration.
For longitudinal waves, the waves move in parallel direction to the source of vibration .
They are similar in the sense that energy is transferred in the form of waves.
-
Difference:
-
Transverse Waves: Displacement of the medium is perpendicular to the direction of propagation of the wave.
Longitudinal Waves: Displacement of the medium is parallel to the direction of propagation of the wave.

3 0

3 years ago