All categories

3 years ago

Light waves from the sun can travel through outer space and reach the earth. This suggests that light is a(n)

Physics

1 answer:

garik1379 [7]3 years ago

8 0

Answer:

D) Electromagnetic waves

Explanation:

This is because with compression waves and longitudinal waves a medium is required such as air. however in a vacuum this will not work

You might be interested in

Which statement is true about an object that sinks in water?

bogdanovich [222]

It is about density. The less dense object will tend to float when put into the water. For example, oil is denser than water so the result of the mixture would make oil float. Sinking objects would only mean that it has an equal or greater mass than water.

7 0

4 years ago

The mass of an object is 5 kg .what does it mean

aivan3 [116]

Answer:

Explanation:

If the mass of an object is 5 kg, it means that it weighs 5 kg

Hope this helps

plz mark as brainliest!!!

4 0

3 years ago

A moon orbits a planet every 42 hours with a mean orbital radius of .002819 AU. The mass of the moon is 8.932 x 1022 kg. Using N

Pepsi [2]

Answer:

The mass of the planet is $1.9407\times10^{27}\ kg$

Explanation:

Given that,

Time period = 42 hours = 151200 sec

Orbital radius = 0.002819 AU = 421716397.5 m

Mass of moon $m=8.932\times10^{22}\ kg$

We need to calculate the mass of the planet

Using Kepler’s third law

$T^2\propto a^3$

$T^2=\dfrac{4\pi^2}{G(M+m)}\times a^3$

Where, a = orbital radius

T = time period

G = gravitational constant

M = mass of moon

m = mass of planet

Put the value into the formula

$(151200)^2=\dfrac{4\pi^2}{6.673\times10^{-11}(8.932\times10^{22}+m)}\times(421716397.5)^3$

$(8.932\times10^{22}+m)=\dfrac{4\pi^2}{6.673\times10^{-11}}\times\dfrac{(421716397.5)^3}{(151200)^2}$

$(8.932\times10^{22}+m)=1.94087\times10^{27}$

$m=1.94087\times10^{27}-8.932\times10^{22}$

$m=1.9407\times10^{27}\ kg$

Hence, The mass of the planet is $1.9407\times10^{27}\ kg$

8 0

4 years ago

Explain why sugar was used in this experiment. How does the experiment relate to a baker adding yeast to bread to make it rise?

tia_tia [17]

Answer:

Yeast can use oxygen to release the energy from sugar (like you can) in the process called "respiration". ... So, the more sugar there is, the more active the yeast will be and the faster its growth (up to a certain point - even yeast cannot grow in very strong sugar - such as honey).

7 0

2 years ago

Color is a result of the absorption and reflection of light. A shirt appears a color because it reflects that color of light. A

Damm [24]

The clothing seems white because the entire light is reflected.

<h2>what is absorption and reflection?</h2><h3>Absorption:</h3>

This occurs when light is transformed into another type of energy. This happens when light vanishes while travelling through another medium.

<h3>reflection:</h3>

It is referred to as light reflection when a light ray hits a polished, smooth surface and bounces back. The incident light rays hit the surface and are reflected off of it. The beam that returns is referred to as the reflected ray.

to know more about absorption and reflection go to - <u>brainly.com/question/3883323</u>

<u />

5 0

2 years ago