how can light travel from a source to another location?

Answers

Answer 1

Answer:

directly from the source through empty space


Related Questions

what piece of equipment on a boat is most important in preventing propeller

Answers

ignition safety switch
The ignition safety switch, often known as the engine cut-off switch, is the most critical piece of equipment for preventing propeller strike injuries. The purpose of this device is to turn off the boat engine immediately so the propeller will be halted and an accident can be avoided.

A mango fruit drop from a branch 10m above the ground. Just before hitting the ground the velocity is ?​

Answers

Answer:

Below

Explanation:

Here are all the values we are given :

dy = 10m

We know that :

a = 9.8 m/s^2 because it is a free falling object

vi = 0 m/s

Here is the formula to find the final velocity :

     vf^2 = vi^2 + 2ad

     vf^2 = (0)^2 + 2(9.8)(10)

     vf^2 = 196

         vf = 14 m/s

Therefore the mango's velocity before hitting the ground is 14 m/s

Hope this helps!

Which 2 points are unbalanced??

Answers

Answer: section 2 and 4

Explanation:

I had this problem before and that was the answer.

Describe all the ways that Newton’s Laws can apply in the game of football?

Answers

Answer:

Newton's Second Law of Motion states that a force on an object is equal to the mass of the object multiplied by its acceleration (F=ma). ... When the punter kicks the ball, his foot exerts a force on the ball. The football then exerts an equal amount of force in the opposite direction on the kicker's foot.

In football, the foot of a kicker applies force to the ball when he kicks it, as the force acting on a ball is equal to that ball's mass times its acceleration, so Newton's second law is applied here.

What is Newton's Second Law?

The precise explanation of how a force can change a body's motion is given by Newton's second law. A body's momentum is said to vary at a rate equal to the force acting on it over time, both in magnitude and direction. A body's momentum is determined by its mass and velocity together.

According to Newton's Second Law of Motion, a force acting on an object is equal to that object's mass times its acceleration (F=ma). The punter's foot applies force to the ball when he kicks it. The kicker's foot is then subjected to an equivalent force from the football acting in the opposite direction.

Therefore, In football, the foot applies force to the ball when he kicks it, so Newton's second law is applied here.

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A box is being pushed at constant speed up an inclined

Answers

Answer:

ok what is the question

Explanation:

I don't know what the question is

Encontrar la distancia y desplazamiento de las dos trayectorias si se mueve el móvil Desde A hasta B

Answers

Answer:

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Explanation:

need an answer asap



if u know physics pls answer the rest of my question!!

i will give brainliest

Answers

a] negative charge it's e-

Quinn accelerates her skateboard along a straight path from 0 m/s to 4.0 m/s
in 2.5 seconds. Calculate the acceleration of the skateboard

Answers

initial velocity=u=0m/sFinal velocity=v=4m/sTime=t=2.5s

[tex]\\ \sf\longmapsto Acceleration=\dfrac{v-u}{t}[/tex]

[tex]\\ \sf\longmapsto Acceleration=\dfrac{4-0}{2.5}[/tex]

[tex]\\ \sf\longmapsto Acceleration=\dfrac{4}{2.5}[/tex]

[tex]\\ \sf\longmapsto Acceleration=1.6m/s^2[/tex]

Select all that apply.

The spectrum of Star S is compared to a reference hydrogen spectrum. What can be concluded about Star S?

Star S is moving away from Earth.
Star S is moving toward Earth.
Star S has transverse motion.
Star S has radial motion.

Answers

Answer:

Star S has radial motion

Explanation:

Because the radial motion stracture is kinda similar to hydrogen spectrum(I'm guessing,only lol)

The spectrum of Star S is compared to a reference hydrogen spectrum. It is concluded that Star S has transverse motion.

What is hydrogen spectrum?

Hydrogen spectrum is used to show the quantized electronic structure of an atom.

If Star S is not showing radial motion. So, it is not moving away or towards the Earth.

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Calculate the pressure increase at the bottom of a pool of depth 2m. Density of water=1000kg/m^3 g=10N/kg

Answers

Please check the attached picture
Pa = atmospheric pressure (look it up in units of N/m^2)
D = density of water (given as 1000 kg/m^3)
h = depth of water = 3m
g = acceleration of gravity = 9.8 m/s^2

At a depth of h (meters), the static pressure is

P(h) = Pa + Dgh

Plug in the numbers and get P(h) in units of N/m^2.

Answer this question i will mark you brainliest​

Answers

Answer:

all of the above OR LETTER B

Explanation:

THAT'S WHAT I KNOW:))

Answer:

la c)

Explanation:

HELP!
Electronic signals can travel very long distances in _______ fibers, due to total internal reflection.

Answers

optical fibre

[tex] \huge \mathfrak \blue{hope \: it \: helps}[/tex]

What is the physical dimension for moment​

Answers

The dimensional formula for the moment of force is [M1L2T−2].

A battery-powered lawn mower has a mass of 48.0 kg. If the net external force on
the lawn mower, including both your push and any resistance, is 40.5 N, then what
is the mower's acceleration?

Answers

F= mass*acceleration
_40.5=48.0*a
a=40.5/48.0
a=0.84m/s

The lawnmower's acceleration is 0.844 meters/sec².

Given to us:

Mass of the lawnmower, m = 48.0 kgs. ,

Net external force, F = 40.5 N,

As we know, a force can change the motion of an object. A force causes an object with mass to change its velocity.

Therefore, when we calculate force, we take force as a net force.

[tex]\bold{ Force= Mass\times (change\ in\ velocity)=Mass\times acceleration}[/tex]

[tex]F = m\times a\\40.5 = 48 \times a\\\\a= \dfrac{40.5}{48} \\\\a= 0.844\ m/sec^2[/tex]

Hence,  the lawnmower's acceleration is 0.844 meters/sec².

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which type of wave has rarefactions and compressions

Answers

Longitudinal waves. Hope this helps

A cup of tea with a temp. of 80°C is put on a table in a 20°C room. What happens to thermal energy and molecular motion of the tea when it is left on the table? *

Answers

Answer:

The thermal energy increases and the molecules move faster.

A possible answer to a scientific problem is called a

Answers

Answer:

A hypothesis is a possible explanation for a set of observations or an answer to a scientific question. A hypothesis must be testable and measurable.

Explanation:

Answer:

hypothesis is likely tobe the answer, im indian

Explain the Kinetic Theory of Matter
and use an example from everyday life

Answers

Answer:

The Kinetic Theory of Matter or KTM as i will call it, states that every object is made of many many small particles (humans are made of sextillions of atoms), and that they are constantly moving and bumping each other. The degree to which the particles move is determined by the amount of energy they have and their relationship to other particles.

An example would be Brownian Motion- the random movement of dust particles because of collisions with "air" molecules and how gases behave i.e. Boyle's, Charles', and Gay-Lussac's Laws.

in figure Car’s weight = 16,000 N. What is the external input force?

Answers

The answer is 200 Newton

Answer:

The answer is 200 Newtok

Sound wave is an example of ……………………………………. wave.
1.Energy
2.Medium
3.Transverse
4.Longitudinal

Answers

Answer:

4

Explanation:

longitudinal

have a beautiful day ahead

which type of energy does a ball falling through the air have?

Answers

Answer:

the answer would be kinetic energy

in longitudinal waves in a spring, the parts where the coils are close together are called

Answers

Answer:

compression

Explanation:

compression

Pls answer it ASAP I need it today

Activity 6: Write the uses of each cleaning compound.

1. Detergent-

2. Solvent cleaners-

3. Avid cleaners-

4. Abrasives-

Answers

Detergents are special, powerful cleansers that can break up dirt, oils, and grease in clothing or on dishes.

Cleaning solvents are used to remove oil, grease, solder flux, and other contaminants.

Acid cleaners are generally used to remove mineral deposits and are useful for descaling dishwashers or removing rust from restroom facilities.

Abrasive uses
* Buffing.
* Honing.
* Drilling.
* Grinding.
* Sanding.
* Polishing.
* Cutting.
* Sharpening.

fraction that occurs in gases and liquids is called what
plzz help meeeee

Answers

Answer:

it is called fluid friction.

How much work is done by a man if he moves a distance of 15m by applying the force of 20N? Find his power if he does the work in 2 seconds. (answer - 300 joule,150w)​

Answers

Work= Distance × Force

15 metre × 20 N

300 Joule

Now ,

Power,

2 seconds = 300/2

150 watt

We know that

Unit of Work is Joule

Unit of Power is watt

So,

Work - 300 joule

Power= 150 watt

The air is 80% Nitrogen, in what form do organisms use nitrogen?

Answers

Answer:

Nitrogen in the air

Explanation:

The Earth's atmosphere contains almost 80 % nitrogen gas. It cannot be used in this form by most living organisms until it has been fixed, that is reduced (combined with hydrogen), to ammonia.

Which city has the lowest temperature and slowest speed of sound?
a. Baguio
b. Manila
c. Lipa
d. Cagayan
e. Cebu
f. Tagaytay​​

Answers

ITS A a AAA A A  a A A  A A A A A

what is deltoids muscle?

Answers

Answer:

The deltoid muscle is a large triangular shaped muscle associated with the human shoulder girdle, explicitly located in the proximal upper extremity.

Explanation:

what process is a form of mechanical weathering ?

Answers

Answer: abrasion-is the physical process by which rocks and clasts are reduced in  size  

Explanation: but i didn't see any answer chooses

Erosion would be the correct answer

What is it about a black hole that makes it powerful?

Answers

Answer:

A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying. Because no light can get out, people can't see black holes.

Explanation:

Hope this helps :)  

Pls make brainliest :3  

And have an amazing day <3

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