Answer:
There are no gaps in space between the photons as they travel. If you were to look at a wave then you'd come to a conclusion that indeed that there aren't any gaps unless they are specifically placed.The light from a distance star indeed spreads out and weakens as it travels, but this just reduces the wave strength and does not introduce gaps.
3. If substance A has half the index of refraction of substance B, which is (most likely) more dense
Answer:
The correct answer is A!
Explanation:
a baseball player throws 4 balls every 20 seconds. what is his throw frequency
Answer:
Frequency, f = 0.2 Hz
Explanation:
We have,
A baseball player throws 4 balls every 20 seconds.
It is required to find the frequency of the baseball.
Frequency of an object is defined as the number of times an event occurs. It is given by number of throws per unit time. It can be given by :
[tex]f=\dfrac{4}{20}\\\\f=0.2\ Hz[/tex]
So, the frequency of his throw is 0.2 Hz.
please help me and i’ll give you brainliest if correct :)
Answer:
Accurate Measurements
Explanation:
Always put in accurate measurements when arguing
Answer:
accurately measurements
A bird sitting on a hinged perch takes off from the perch, pushing the perch
in the opposite direction. The momentum of the perch
Answer:
The momentum of the perch is equal to it's own momentum gather to take off
Explanation:
According to the Newton third law of motion which state that: in every action, there will be an equal and opposite reaction.
This is the law that helps us to walk, paddle boats e.t.c.
And momentum is always conserved. Therefore, the momentum of the perch is equal to it's own momentum gather to take off
a charged particle is 2×10^-4C determine the quantum number of the charge
Answer:
wedf
Explanation:
Scientists have discovered fossils of ancient
whalelike animals that had legs instead of
flippers. This evidence most likely indicates
that the ancestors of present-day whales
A lived in the ocean.
B lived on land.
C evolved gradually rather than during
short periods of rapid change.
D never became extinct.
A charge is moving in a magnetic field that points to the
left
What direction can the charge move and experience no
magnetic force? Check all that apply
up
down
left
right
into the screen
out of the screen
Adding a best-fit line to the scatter plot shown below would be an example of _____.
A. making an inference
B. drawing a conclusion
C. checking a prediction
D. correcting a hypothesis
The diagram shows the schematic symbol of a transistor.
Which is the correct label for the part of the transistor
marked with an X?
Х
base
outlet
gate controller
electrical supply
Answer:
base
Explanation:
In the schematic symbol of a transistor, the arrow in the symbol indicates the direction of flow. There are three terminals namely, emitter, collector and base.
When you apply 0.7V from base to emitter you will turn the transistor ON and allow a current to flow from collector to emitter.
With the x in the picture the base must be indicated because all other answers do not make sense.
The correct label for the part of the transistor marked with an X is base.
What is transistor?A transistor is a semiconductor device used to amplify the electrical signals and power. The transistor is one of the important part of modern electronics. It is consist of semiconductor material, have three terminals for connection.
In the place of mark X of a transistor, the arrow in the symbol indicates the direction of flow. There are three terminals called as emitter, collector and base.
The base is indicated by the mark X in the picture.
Learn more about transistor.
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Along with X-Rays, which high frequency EM waves can be used to destroy
cancer cells? *
Radio
Microwave
Infrared
Gamma
Two speakers create identical 240 Hz sound waves. A person is 1.47 m from Speaker 1. What is the MINIMUM distance to Speaker 2 for there to be destructive interference at that spot? (Hint: v= lambda f=343 m/s) (Unit = m)
Answer: 2.90 metres
Explanation:
Distance of speaker 2 =?
Distance of speaker 1 = 1.47m
Velocity = 343
f = 240Hz
For constructive interference to occur:
Difference in distance or path = wavelength
For minimum distance, n = 1
Distance 2 - distance 1 = nλ
Recall λ = v/f
V = Velocity ; f = frequency
Distance 2 - distance 1 = v/f
Distance 2 - 1.47 = (343/240)
Distance 2 = 1.429 + 1.47
Distance 2 = 2.899 meters
Minimum Distance of speaker 2 for their to be constructive interference = 2.90meters
Answer:
The answer would be 0.755415
people are more likely to treat someone kindly if they've you that person's bad behavior as the result of an external attribution
true or false
Answer:
True
Explanation:
Answer:
True
Explanation:
How far would a baseball travel in 0.5 s if it is thrown at a speed of 20 m/s?
40 s
10 m
O 10s
40m
Answer:
10 m
Explanation:
20 ÷ 2 = 10
This is because since it is only half a second, it will only travel half of the distance that is shown in meters per second.
does a atom power a star
Answer: yes
Explanation: All atoms larger than hydrogen and helium have been made within the thermonuclear furnace of a star, powered by nuclear fusion. This is the process in which smaller atoms, i.e., hydrogen and helium, are smashed together to form larger elements, such as carbon.
what is the gain in GPE when a brick of 2.00 kg is lofted up by 11.5 m?
Answer:
225.63 j
Explanation:
GPE = MGH
M= 2.00 KG
H= 11.5 m
g = 9.81 m/s2
gpe = ?
2x11.5x9.81 = 225.63
Which is an example of a mixture?
A. water
B. trail mix
C. hydrogen
D. carbon dioxide
Answer:
B. Trail Mix
Explanation:
There are different kinds of nuts, seeds, etc. This is a mixture
When waves meet, and form either a larger or smaller amplitude, it is called _______
a. absorption
b. reflection
c. inference
d. refraction
Answer:
Explanation:
Reflexión
Which term describes the bending of a wave as it travels into a different
medium?
A. Reflection
B. Interference
C. Diffraction
D. Refraction
Answer:
Refraction
Explanation:
Answer:
a
Explanation:
What happens to the liquid propane when it hits the warmer air?
Answer:after -44 degrees it turns into liquid and when it becomes vapor when it gets warmer
Explanation:
What is the mass of a car that hits a deer with a force of 3,000 N if it started traveling at a speed of 50 m/s but slowed down to 25 m/s in 5 s before hitting the deer?
Answer:
Can’t u just google it?
Explanation:
In order for generators to work, this type of
energy must be harvested:
A. chemical energy
B. neuclear energy
C. mechanical energy
D. electrical energy
In order for generators to work, mechanical energy must be harvested. (C)
ANSWER ASAP!! EASY!!
just fill in the blanks
Answer:
the first one is stay in motion and stay at rest
the second one is unbalanced and accelerate
i can't see the third one but i think it is equal because it may say Newton's third law states that...
Explanation:
Answer:
1. Stay in motion
2. Stay at rest
3. Unbalanced
4. Accelerate
Explanation:
Fill in the Blanks in this order and you will get it correct
which force causes a soccer ball to take a curved path when it is kicked?
rotation
acceleration
mass
velocity
Answer:
velocity
Explanation:
velocity is the only option that deals with change in direction, or best put by this website i read about physics; "Velocity measures motion starting in one place and heading toward another place."
Answer: Rotation
Explanation: took quiz :)
6. To which of these abrasive disks can you
apply a water-coolant?
(A) Concrete
(B) Metal
Answer: its B
Explanation:
Metal abrasive disks are used as a water coolant. These are used mostly to slice stones and metals. Grit discs have several advantages over various kinds of discs. They have such a relatively fast cutting speed. The grit disc sander is not a hefty instrument that can be easily held when operating on a scaffold.
Steel cutting fluids are abrasive or peening mediums composed of iron particles. They are typically offered in two sizes (shot and grit) that suit various industrial applications. Since these grains are made from smashed steel shot, they have sharp edges and broken parts.Therefore, the answer is "Option B".
Learn more:
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Plz answer both thanks:)
Answer:
Acceleration.
Explanation:
F = m x a
The 'a' in formula above is acceleration.
Force is simply defined as the product of mass and acceleration. Mathematically, it is expressed as
Force(F) = Mass(m) x acceleration (a)
F = m x a
Bottom 2 questions on the page:
Answer to BOTH is "acceleration'.
Which statement is true about the ideal mechanical advantage of a third-class lever?
A It is always greater than 1.
B It is always equal to 1.
C It is always less than 1.
D It can be less than, greater than or equal to 1.
Answer:
It is always less than one.
Explanation:
Because the load covers more distance than the force when they move in the same direction.
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Which best explains why making a pancake from batter is an example of a chemical change?
The pancake that forms is a different state of matter.
The change from batter to pancake can be reversed.
A new substance forms when the batter is cooked.
The batter changes shape when it is cooked.
Answer:
first one
Explanation:
ANSWER THIS ASAP
Question 2-3
When waves traveling in the same medium meet, a new
wave may be produced. Use the slider to create the resulting
wave with the largest amplitude.
Answer:
if there is any phase between the waves this value is less
if the sine function is ±, the amplitude of the total wave is
A_total = A₁ + A₂ + A₃+ A₄ +A₅
Explanation:
When several waves travel in the same direction, the process of adding them can take place.
y_total = ∑ [tex]y_{i}[/tex]
where
y_{i} = A_{i} sin (k x - w t + Ф)
with fi the phase of each wave
To produce the largest possible result, all waves must come with the same phase
y_total = (A₁ + A₂ + A₃ + A₄ + A₅) sin (k x - wt)
if there is any phase between the waves this value is less
if the sine function is ±, the amplitude of the total wave is
A_total = A₁ + A₂ + A₃+ A₄ +A₅
Answer:
Explanation:
Just got it right
What are physical properties?
Answer:
they are things that can't be turned back the way they were before, like when you mix an egg, you can't get the egg to unmix itself.
Explanation: