The wavelength of the wave is 5.0 x 10^-11 m which is option D.
Wavelength calculation.
To get the wavelength (λ) of the electromagnetic wave given we will first link it up with its relationship to its frequency (f) and also to the speed of light (c) given by the formula below.
λ = c/f
Where,
c is 3.0 x 10^8 m/s
f is 6.0 x 10^18 Hz
C/f= 3.0 x 10^8 m/s 6.0 x 10^18 Hz
wavelength = 5.0 x 10^-11 m
so, the wavelength is 5.0 x 10^-11 m.
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Answer:
The last one
Explanation:
Answer:
The dotted line from the earth to the moon represents your line of sight when looking at the moon. ... So the basic explanation is that the lunar phases are created by changing angles (relative positions) of the earth, the moon and the sun, as the moon orbits the earth
Explanation:
Which of the following actions may help to prevent a rear-end collision?
rolling forward if there is room
pumping the brake to make the brake lights flash
rolling forward if the front zone is clear
all of the above
An electron has a mass of 9.1x10-31 kg. What is
its momentum if it is travelling at a speed of
3.5x10 m/s?
Answer:
3.185×10^-29 kgm/s
Explanation:
Momentum(p)=mass×velocity
=9.1×10^-31×3.5×10
=3.185×10^-29 kgm/s
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Answer:
First answer.
Explanation:
There may be a 5N force, but if the frictional force also equals 5N, than they cancel eachother out, resulting in the brick still staying still, as it is resting on a (perfectly) level surface, but any amount of force would make the brick move.
In which stars will you likely find fusion of heaveir elements such as helium and oxygen
What is the total kinetic energy of a hoop of radius 1 m and mass 2 kg that rolls at an
angular velocity of 1 rad/s?
Answer:
12
Explanation:
What is the total kinetic energy of a hoop of radius 1 m and mass 2 kg that rolls at an
angular velocity of 1 rad/s?
For a total of 8 hours, Erica rode her motorcycle down a freeway at 80 kilometers per hour.
There was a car behind her for one-quarter of that time. How far did Erica ride while the car
was behind her?
If two vectors are 7 cm and 5 cm .then what's the addition of these two?
Answer:
7 + 5 = 12
7 + 5 = 12
Explanation:
Since it asks for 2 vectors, you have to add 2 times.
How does the intensity of light change for a location depending on the season?
Answer:
The intensity of light can change with the time of the day, season, geographic location, distance from the equator, and weather. It gradually increases from sunrise to the middle of the day and then gradually decreases toward sunset; it is high during summer, moderate in spring and fall, and low during winter time.
Explanation:
translational movement with the tilt of the earth's axis we can explain the change in intensity that an area receives determined with the weather station.
In summer the axis points to the sun, which is why more intensity per unit area arrives. In winter the axis moves away from the sun intensity per unit area is less
The intensity of the radiation is defined by the relationship between the power on the irradiated surface
I = P / A
where I is the intensity, P is the power emitted by the sun and A is the area.
The intensity of the radiation that reaches it is around 1400 W / m² in the upper part of the Earth's atmosphere, this amount varies slightly when the planet passes from its furthest point from the sun to its closest point, that is, perihelion to aphelion.
The most important variation of this intensity is due to the fact that it has its axis inclined and the normal to the area changes in relation to the incident radiation during the translational movement around the sun.
In the summer the axis of the earth is inclined towards the sun, so the rays fall more perpendicularly, therefore their absorption over the area is maximum and the temperature rises.
In winter, the earth's axis is tilted away from the sun, so the rays they carry are distributed over a larger surface area and therefore less energy is absorbed per unit area and the temperature decreases.
In the spring and autumn seasons, the Earth's axis is almost vertical, so the absorption is intermediate and the temperature of the Earth is between the two maximums.
Using an analysis of the translational movement with the inclination of the earth's axis, we can explain the change in intensity received by an area determined with the weather station.
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B. Direction: In each of the following situations, identify the method of heat transfer that takes place
(conduction, convection, or radiation).
1. Hot milk is stirred with a spoon, later the spoon gets hot
2. The air near the ceiling of a closed room is warmer, because the warm air rises.
3. You are doing artwork at your table near a lamp, you start to feel hotter.
4. During nighttime, the cool air from the land moves toward the sea to replace the rising warm air.
5. In a pool, the water near the surface is slightly warmer.
6. The washed clothes under the sun dries up.
7. The scouts stand near a bonfire during their camping-
8. Fish is cooked over a hot pan.
9. Iron nail being heated in a candle.
10. A boy playing outside starts to feel hotter.
Answer:
1) Conduction
2)Covection
3)Radiation
4)Convection (Land breeze one of the application of convection of heat)
5) Convection
6)Radiation
7) Radiation
8)Conduction
9) Conduction
10) Radiation
Hope it helps
If the voltage of your circuit is 36 volts and the current is 9 amps what is the resistance?
Aswer:
To find the resistance of a circuit, Ohm's law is used:
[tex]\boxed{\mathbf{R= V \ / \ i }}[/tex]
Taking as data:
Volts(v) = 36
Current(I) = 9 amps
Resistance(r) = ¿?
We replace according to the formula:
v/i = r
[tex]\mathbf{{36 \ / \ 9 = 4}}[/tex]
Result: The resistance of the circuit is 4 Ohms.
You walk 200m south, then 50m east. What is your displacement?
Which weather event is most likely to occur if there are warmer than average ocean waters in the Pacific? Group of answer choices Flooding in the southern United States due to El Niño Wet conditions in the Pacific Northwest due to El Niño Weak trade winds due to La Niña Drought in the southern United States due to La Niña
Answer:
Flooding in the southern United States due to El Nino
Explanation:
An El Nino is said to be taking place during the period of a rise in the temperature of the water at the equatorial Pacific above average combined with a weaker than normal east winds.
The opposite condition is La Nina
The effects of an El Nino includes an higher amount of rainfall and can sometimes cause destructive flooding which is observed in the Southern United States from during the fall through spring
The weather that is most likely to occur if there are warmer than average ocean waters in the pacific is flooding due to El Nino in the southern United States.
Explain what superconductivity is and how it was discovered.
Answer:
Superconductivity is a phenomenon whereby a charge moves through a material without resistance. In theory this allows electrical energy to be transferred between two points with perfect efficiency, losing nothing to heat it was discovered on April 8, 1911 by Heike Kamerlingh Onnes, who was studying the resistance of solid mercury at cryogenic temperatures using the recently produced liquid helium as a refrigerant. At the temperature of 4.2 K, he observed that the resistance abruptly disappeared.
Explanation:
yeah
A clock draws 2.0 watts of power to operate and is in operation 8,600 hours per year. The energy usage of the clock, in kWh per year, is closest to
Answer:
the energy usage of the clock per year is 17.2 kWh
Explanation:
Given;
power drawn by the clock, P = 2 W
duration of the clock's operation, t = 8,600 hours per year
The energy usage of the clock per year is calculated as;
E = Pt
[tex]E = (\frac{2}{1000} )kW \ \times \ 8,600 \ hr\\\\E = 17.2 \ kWh[/tex]
Therefore, the energy usage of the clock per year is 17.2 kWh
what are the effects of atmospheric pressure
Answer:
Cloudiness, Wind, and Precipitation. There's more effects produced because of force is more if the surface of the area is smaller, and less when the surface is larger. It also affects weather, it can be measured with a barometer.
Explanation:
Which of the following descriptions apply to the Milky Way galaxy
When a +0.00235 C charge
moves from point A to point B, its
electric potential energy increases
by 0.418 J. What is the potential
difference between A and B?
Include the correct sign, + or -.
(Unit = V)
Answer:
177.87
Explanation:
acellus
The potential difference between the points A and B is 177.9 V.
What is meant by potential difference ?Potential difference between any two points is the amount of work required to move a unit positive charge along any path from point A to point B without accelerating is referred to as the electric field.
Here,
The charge on the particle, q = +0.00235 C
The change in electric potential energy, ΔU = 0.418 J
The potential difference can be defined as the electric potential energy per unit charge.
Therefore, the potential difference between A and B,
V = ΔU/q
V = 0.418/0.00235
V = 177.9 Volt
Hence,
The potential difference between the points A and B is 177.9 V.
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An incline plane is 12-m long and 4-m high. A block is pulled up the ramp with a spring scale. The reading on the spring scale is 70-N. How many Newtons would the block actually weigh if you had to lift it the 4-m height?
Answer:
W = 210 N
Explanation:
For an ideal machine:
[tex]Work\ In = Work\ Out\\(P)(L)=(W)(H)[/tex]
where,
P = Effort = Spring Scale Reading = 70 N
L = Effort Arm = Length of inclined plane = 12 m
W = Actual Load (Weight) to be lifted = ?
H = Load Arm = Height = 4 m
Therefore,
[tex](70\ N)(12\ m) = (W)(4\ m)\\\\W = \frac{(70\ N)(12\ m)}{4\ m}[/tex]
W = 210 N
Removing an electron from a neutral atom will result in an atom that?
Removing an electron from a neutral atom will result in an atom that is positive.
Answer:
give me brainllest if this is right.
Explanation:
No, the atom will get a positive charge.
When entering an expressway, in the acceleration lane you should: A search for a gap in traffic and adjust your speed to the speed of the traffic. B set the cruise control for highway speed. C make a complete stop and check traffic for a suitable gap. D get as close to the vehicle ahead as possible so you can merge into the same gap.
Answer:A
Explanation: search for a gap in traffic and adjust your speed to the speed of the traffic.
You are pushing a 20 N object for 3 meters. If you have to push
vith 30 N to do this, how efficient is your work?
Answer:
For the first equation, the work done would be 60 J, but if it is done with 30 N, it would have been 90 J.
Explanation:
it's actually pretty easy one you practice it for some time. W ( work done in joules ) = F ( force put onto the object in newtons ) * D ( distance traveled in meters ).
Push is defined as a force that moves an object out of its resting position and away from the person exerting the push. When something is pushed, it usually moves away. Examples of push force include kicking a ball, shutting a door, pushing a cart, and plugging something in.
What role of force in push to work?A push or pull that causes something to move is called a force. Every day, whether you're playing soccer, pushing a shopping cart, or pulling mittens onto your hands, you're moving objects!
An example of a push force is the force you use to push up against a wall. The force you use to pull a trolley vehicle is an example of pull force.
Every force is a push or a pull. A push occurs when an object is forced to move away from something. A pull occurs when an object is drawn toward you by force. Energy, friction, and gravity all have an impact on how strong or weak the force is.
Therefore, Once you practice it for some time, it's actually rather simple. Work in joules is equal to force on an object in newtons multiplied by D. (distance traveled in meters).
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Mr. Barcena reached a top speed of 5m/s in 2 seconds from rest, what was his average acceleration including units?
correct answer is not here
.25
OO00
5.2
2.5
Answer:
Explanation:
The equation for acceleration is
[tex]a=\frac{v_f-v_0}{t}[/tex] where vf is the final velocity and v0 is the initial velocity. Filling in:
[tex]a=\frac{5-0}{2}[/tex] so
a = 2.5 m/s/s
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_____________ is the rubbing force that acts against motion between two touching surfaces.
Inertia
Friction
Momentum
Acceleration
Answer:
friction
Explanation:
when 2 plates rub againts each other it makes friction same as in the earth. EXAMPLE just like how you rub your hands together
Answer:
Friction
Explanation:
What is an atom called after it was proven wrong
Answer:
An atom is the smallest unit of ordinary matter that forms a chemical element.
Matter is composed of very tiny or microscopic particles called "Atom".
(According to Dalton atomic theory some of his principles were wrong and later was corrected but the definition of an atom was right in his theory).
Calcula en watts y en caballos de fuerza la potencia mecánica de una grúa que efectúa un trabajo de 60000 joules en 3 segundos
Answer:
I. Potencia mecánica = 20000 Watts.
II. Potencia mecánica = 26 caballos de fuerza.
Explanation:
Dados los siguientes datos;
Trabajo realizado = 60000 julios
Tiempo = 3 segundos
Para encontrar el poder;
I. En vatios:
Potencia mecánica = trabajo realizado / tiempo
Potencia mecánica = 60000/3
Potencia mecánica = 20000 Watts
II. En caballos de fuerza;
1 vatio = 0.0013 caballos de fuerza
20000 Watts = 20000 * 0.0013 = 26 caballos de fuerza.
Potencia mecánica = 26 caballos de fuerza.
Una grua que efectua un trabajo de 60000 J en 3 s, tiene una potencia mecánica de 20000 W o 27 HP.
Una grua efectua un trabajo (W) de 60000 Joule en 3 segundos (t).
La Potencia mecánica (P) se define como la cantidad de trabajo realizado por unidad de tiempo.
[tex]P = \frac{W}{t} = \frac{60000J}{3s} = 20000W[/tex]
Podemos convertir 20000 W a caballos de fuerza usando el factor de conversión 1 HP = 735.5 W.
[tex]20000W \times \frac{1HP}{735.5W} = 27 HP[/tex]
Una grua que efectua un trabajo de 60000 J en 3 s, tiene una potencia mecánica de 20000 W o 27 HP.
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Which of these would be caused by a chemical change?
A)
The formation of lava.
B)
Sedimantary rock layering over time,
C)
Metamorphic rock forming from igneous.
D)
Metamorphic rock eroding to form sedimentary rock.
Answer:
The answer is C!
Metamorphic rock forming from igneous.
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8. What is the total mechanical energy of a penny dropped off of the top of the Empire
State Building if it has a potential energy of 47 J, and a kinetic energy of 23 J?
A.18J
B.24 J
C.70 J
D.667 J
Answer:
C 70 Joules because all of the energy of converted to potential energy.
When a 3.25 A current flows across a resistor, the voltage drops by 212 V. What is the resistance?
Answer: 65 ohm
Explanation:
A scientist told his student assistants that he had sorted groups of mice by their intelligence and asked the assistants to assess the groups’ maze-solving abilities. The scientist had not actually sorted the mice by intelligence. The students rated the “highest intelligence” group of mice as the best maze solvers and the “lowest intelligence” group as the worst maze solvers. What was the scientist trying to demonstrate by doing this experiment?
Experimental subjects should never be put into groups.
Mice should not be judged by their intelligence.
Higher intelligence mice are better maze solvers.
People can introduce their own biases into an experiment.
Answer: People can introduce their own biases into an experiment.
Explanation:
The scientist had not actually sorted the mice in terms of intelligence which means that the rats in all the groups possessed the same intelligence on average yet the students after assessment, still corroborated his false narrative by stating that the more intelligent mice were better at solving mazes.
This means that somehow, they must have altered the assessment to fit the narrative of the scientist and they might have done this either consciously or unconsciously. This therefore shows that people will usually introduce their own biases into an experiment in order for it to turn out a certain way.
Answer:
D
Explanation:
Edge 2020