If a FM radio station broadcasts at 80. 3 MHz (megahertz), what is its wavelength in m (speed of light 3. 0 x 108 m/s)

Answers

Answer 1

Answer:

Wavelength = 3.74 m

Explanation:

In order to find wavelength in "metres", we must first convert megahertz to hertz.

1 MHz = 1 × 10⁶ Hz

80.3 Mhz = x

x = 80.3 × 1 × 10⁶ = 8.03 × 10⁷ Hz

The formula between wave speed, frequency and wavelength is:

v = fλ  [where v is wave speed, f is frequency and λ is wavelength]

Reorganise the equation and make λ the subject.

λ = v ÷ f

λ = (3 × 10⁸) ÷ (8.03 × 10⁷)

λ = 3.74 m [rounded to 3 significant figures]


Related Questions

a girl walks 2 meters north 4 meters west and 2 meters south her final displacement is:

Answers

the girls distance aquired should be North by 344 degrees

After a massive-star supernova, what is left behind?.

Answers

Answer: A Nebula is left behind. A spectacular explosion in which a star ejects most of its mass in a violently expanding cloud of debris.

Hope this helps!

Activity 1. Circuit Designer

DIRECTIONS: Draw the corresponding circuit diagram and symbols using the given
number of components. If the diagram is given identify its components.
Please answer this correctly thank you.

Answers

The circuit diagram is a representation of an electric system. It represents the components of the system with symbols. Drawings in the attached file.

What is a circuit diagram?

The circuit diagram is an electrical circuit representation, including the sequence of electrical components or devices.

These diagrams make use of different symbols to represent the elements in the electrical circuit and make clear the connections to one another.

Some of the components composing the electrical circuits are

Single electric cell ⇒  It is represented with two perpendicular lines. The larger line indicates the positive terminal, and a shorter line represents the negative terminal.

The battery ⇒ combination of cells. Two or more cells together

NOTE: Some authors represent the battery as a single cell. You should draw your diagrams considering this. In my representations, I will consider a battery as two cells.      

Switch ⇒ plug key that allows or stops the current flow. It is represented as two circles and a line between them. If it is open, it is a perpendicular line. If it is closed, it is a horizontal line.

Wireconnection between devices. It is represented as a continuous line.

Bulb ⇒ devise that glows when connected to electricity. It might be represented as a cross in a circle.

The resistor regulates the amount of energy provided by the source. It is represented as a zig-zag line or a rectangle.

The ammeter ⇒ measures the current. Represented with an A.

Voltmeter ⇒ It measures the voltage. Represented with a V.

In the attached files, you will find the representations and the components. Please remember that a single battery is represented as two single cells. Make changes in your drawings if necessary.

 

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Where in their life cycle are stars on the main sequence?.

Answers

Answer ,,a main sequence stars burns through the hydrogen in it's core

Explanation:

When the stars go out

Eventually,reaching the end of its life cycle. At this point, it leaves the main sequence. Stars smaller than a quarter the mass of the sun collapse directly into white dwarfs

A thermoacoustic generator transforms thermal energy into electrical energy. Thermal energy is transferred to a gas by a heat exchanger. The thermal energy causes the gas particles to vibrate rapidly and generate a sound wave. These vibrating gas particles are then used by an alternator to generate electrical energy. The gas used in this kind of generator must be nonreactive to avoid the danger of fire. Using heavier gases increases the amount of electrical energy generated.Which two elements on the table are most likely to be good choices for use as the gas in a thermoacoustic generator?

Answers

Answer:

Co2

Explanation:

When does sound become damaging to the human ear?

Answers

when someone yells in it

What best describes the motion of the medium particles in a longitudinal wave? The medium does not move. The medium moves in all directions. The medium vibrates as it moves in a circular path around the wave. The medium vibrates parallel to the direction of the wave.

Answers

In the motion of the medium particles in a longitudinal wave, the medium vibrates parallel to the direction of the wave.

What is a longitudinal wave?

A longitudinal wave is a wave that is transversing along the length. When the displacement of medium and travel of wave is the same in that condition wave is known as the longitudinal wave.

It requires some medium to travel. A mechanical and sound wave is an example of a longitudinal wave.

Hence in the motion of the medium particles in a longitudinal wave, the medium vibrates parallel to the direction of the wave.

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Answer:

d the medium vibrates parallel to the direction of the wave.

Explanation:

A 2.0-kilogram ball rolls down a ramp. if the ball accelerates at a rate of 12 m/s2, the net force causing the acceleration is:
a:6 newtons
b:10 newtons
c:12 newtons
d:24 newtons

Answers

Answer:

D

Explanation:

f = ma

2 x 12 = 24

answer could differ since it's rolling down a ramp. if an angle is given our approach differs.

If the body temperature of a person is recorded as 37°C, what is the person’s body temperature in K? Round your answer to the nearest whole number.If the body temperature of a person is recorded as 37°C, what is the person’s body temperature in K? Round your answer to the nearest whole number.

Answers

K= 37°C+273.15
K= 310.15
Round to the nearest whole number
310K

If two forces act on an object, what is the relationship between the two forces? (pls explain)

A. The larger force causes the same acceleration as the smaller.
B. The larger force causes more acceleration than the smaller.
C. The larger force causes less acceleration than the smaller.
D. The smaller force and the larger force are balanced and therefore causes no acceleration.

Answers

Answer:

B. The larger force causes more acceleration than the smaller.

Explanation:

For example, let me use a child and a grown up. The child represents the smaller force while the grown up represents the larger force. If they are pushing the same object of different sides, obviously the side with the grown up will push and move to the side of the child because it is stronger.

What is the period of a wave traveling with a speed of 20 m/s and the wavelength is 4.0 m?​

Answers

Answer:

0.2s

Explanation:

wave formula

v=(lambda)f

20=(4)f

20÷4

=5Hz

1÷5

T=0.2s

The period of a wave travelling with a speed of 20 m/s and the wavelength is 4.0 m is 0.2 sec.

What is time period?

The length of time it takes a wave to complete one cycle is known as the wave's period. The frequency of the wave must be known in order to compute the wave period. The number of cycles a wave may complete in a period of time—typically one second—is its frequency.

wave formula

v = (lambda)f

20 = (4)f

20÷4

f = 5 Hz

T = 1/f

T = 1÷5

T = 0.2 sec

The period of a wave travelling with a speed of 20 m/s and the wavelength is 4.0 m is 0.2 sec.

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Rectangular plate has a voltage of +180V and plate to the first plate) has a 'voltage of -5V. Determie another rectangular plate (parallel to between these two plates? The distance of the field strength at any point separation of the plates is finite, say 8.6mm.​

Answers

For a Rectangular plate has a voltage of +180V and a 'voltage of -5V. , the second plate has the Electric field mathematically given as

E=21.5*10^3v/m

What is the field strength?

Generally, the equation for the Electric field   is mathematically given as

E=v/d

Where

v={180-(-5)}v

v=185v

Therefore

E=185/8.6*10^{-3}

E=21.5*10^3v/m

In conclusion, Electric field

E=21.5*10^3v/m

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The Earth's biosphere is consists of
A(only the water on Earth that is in its solid form.
B(all of the Earth's water, including surface water, groundwater, snowcover, ice, and water in the atmosphere.
C(the part of the earth and its atmosphere in which living organisms exist or that is capable of supporting life.
D(the solid part of the earth consisting of the crust and outer mantle.

Answers

Answer:

The part of the earth and its atmosphere in which living organisms exist or that is capable of supporting life.

Explanation:

It’s in the definition of biosphere. “Bio” means “life,” so “biosphere” is that portion of the Earth capable of supporting life.


Melissa's hair stands up on end after she takes her wool hat off in the winter but not in the summer

Answers

Answer:

Static electricity

Explanation:

A static reaction is transpiring with the surrounding air as well as her hair.

A circuit has a resistance of 2.5 N and is powered by a 12.0 V battery.
The current in the circuit, to the nearest tenth, is what ?

Answers


Current = (voltage) / (resistance)

= (12 V) / (2.5 ohms)

= 4.8 Amperes

The velocity of a car increases by 40 m/s in 80 seconds. What is the
acceleration of the car?
A. 40 m/s2
B. 0.5 m/s2
C. 120 m/s2
D. 0.25 m/s2

Answers

Answer:

B

Explanation:

a=v/t

a=(40m/s)÷(80s)

a=0.5m/s

Why a surface that always have a perpendicular is an equipotential

Answers

Answer:

An equipotential surface is circular in the two-dimensional. Since the electric field lines are directed radially away from the charge, hence they are opposite to the equipotential lines. Therefore, the electric field is perpendicular to the equipotential surface.

When energy is added to a wave, how can the wave change?.

Answers

Answer:

When waves overlap in-phase (crest meets crest or trough meets trough) the waves energy is additive and the amplitude increases.

Explanation:

When waves overlap out-of-phase (crest meets trough) the waves cancel and the amplitude (energy) decreases. When two interfering waves cancel each other out.

List the elements mentioned from hydrogen to iron in the order of their fusing temperature.

Answers

Explanation:

H

Hydrogen

-259.14 -252.87 0.00008988 (gas, 273K)

2

He

Helium

-272.20 (under pressure) -268.934 0.0001785 (gas, 273K)

3

Li

Lithium

180.54 1347 0.534

4

Be

Beryllium

1278 2970 1.8477

5

B

Boron

2300 3658 2.34

6

C

Carbon

3527 4827

(sublimes) 2.260 (graphite)

3.513 (diamond)

7

N

Nitrogen

-209.86 -195.8 0.0012506 (gas, 273K)

8

O

Oxygen

-218.4 -182.96 0.001429 (gas, 273K)

9

F

Fluorine

-219.62 -188.14 0.001696 (gas, 273K)

10

Ne

Neon

-248.67 -246.05 0.00089994 (gas, 273K)

11

Na

Sodium

97.81 882.9 0.971

12

Mg

Magnesium

648.8 1090 1.738

13

Al

Aluminum

660.37 2467 2.698

14

Si

Silicon

1410 2355 2.329

15

P

Phosphorus

44.1 (white)

410 (red, under pressure) 280 (white) 1.82 (white)

16

S

Sulfur

113 (α)

119 (b)

106.8 (g) 444.67 2.070 (α)

1.957 (b)

17

Cl

Chlorine

-100.98 -33.97 0.003214 (gas, 273K)

18

Ar

Argon

-189.37 -185.86 0.001784 (gas, 273K)

19

K

Potassium

63.65 774 0.862

20

Ca

Calcium

839 1484 1.55

21

Sc

Scandium

1541 2831 2.989

22

Ti

Titanium

1660 3287 4.54

23

V

Vanadium

1887 3377 6.11 (292 K)

24

Cr

Chromium

1857 2672 7.19

25

Mn

Manganese

1244 1962 7.44

26

Fe

Iron

1535 2750 7.874

27

Co

Cobalt

1495 2870 8.90

28

Ni

Nickel

1453 2732 8.902 (298 K)

29

Cu

Copper

1083.4 2567 8.96

30

Zn

Zinc

419.58 907 7.133

31

Ga

Gallium

easy one here pls help thanks so much

Answers

The answer is B. Nutrients.
the answer is B. Nutrients

Enter an expression, in terms of defined quantities and g, for the force that the scale under left pillar shows

Answers

The expression, in terms of defined quantities and g is therefore Fu =((mg/2) +2 mp) g

What is a Scale?

This can be defined as a balance or any of various other instruments or devices for weighing.

The expression in terms of defined quantities and g, for the force that the scale under left pillar shows that Fu =((mg/2) +2 mp) g .

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The expression, in terms of defined quantities and g, for the force that the scale under left pillar is (m(b)/2+2m(d))g.

What is the equilibrium state of a system?

Equilibrium is the location of the system, in which the system be static does not change its position with respect to time.

The image of the uniform beam which has two pillar is attached below. In this pillar,

The length of the pillar is L and the mass is m(b)Pillars located at L/3 from either end.The system is in equilibrium.A duck is shown has the mass m(d).

The expression, in terms of defined quantities and g, for the force that the scale under left pillar has to be find out.

In the equilibrium position torque in left pillar is zero,

[tex]\tau_{right} =0[/tex]

It can be written as,

[tex]F_L\dfrac{L}{3}=m_bg\dfrac{L}{6}+m_dg\dfrac{2L}{3}[/tex]

[tex]F_L=\left(\dfrac{m_b}{2}+2m_d\right)g[/tex]

Thus, the expression, in terms of defined quantities and g, for the force that the scale under left pillar is (m(b)/2+2m(d))g.

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A car initially travels west with a kinetic energy of 10 J. Then it travels east at three times its original speed. What is its kinetic energy when it is traveling east

Answers

KE₁ = 1/2mv²

10 J = 1/2mv²

KE₂ = 1/2m(3v)²

KE₂ = 1/2mv².9

KE₂ = 10 . 9 = 90 J

which thermometer one containing mercury or one containing alcohol, could be used in a polar region where the temperature reaches below -40 degrees?

Answers

Answer. Alcohol thermometer is much more suitable to be used in polar regions. This is because alcohol thermometer has a low

What is the effect of increase in heat on:
1. Plastic
2. Iron

Answers

Explanation:

1.Plastic

Thermal Degradation – Plastic materials subjected to prolonged exposure to high temperatures will lose strength and toughness, becoming more prone to cracking, chipping, and breaking, at a rate in proportion to the temperature and time of exposure.

2.Iron

At room temperature, the iron atoms are in an unusual loosely packed open arrangement; as iron is heated past 912 degrees Celsius, the atoms become more closely packed before loosening again at 1,394 degrees Celsius and ultimately melting at 1,538 degrees Celsius

What happens to the water vapor in the air when the air temperature cools?

Answers

Answer:

it becomes a liquid. it becomes water

If an ocean wave passes a stationary point every 5 s and has a velocity of 10 m/s, what is the wavelength of the wave

Answers

Answer:

As Per Provided Information

Velocity of wave v is 10m/s

These ocean wave passes a stationary point every 5 s ( It's time period)

First we calculate the frequency of ocean wave .

Using Formulae

[tex] \blue{\boxed{\bf \: \nu = \cfrac{1}{v}}}[/tex]

here

v is the velocity of wave .

[tex]\sf\longrightarrow \nu \: = \cfrac{1}{10} \\ \\ \\ \sf\longrightarrow \nu \: = 0.1Hz[/tex]

Now calculating the wavelength of the wave .

Using Formulae

[tex] \boxed{ \bf \lambda = \cfrac{v}{ \nu}}[/tex]

Substituting the value and we obtain

[tex] \sf \longrightarrow \lambda \: = \cfrac{10}{0.1} \\ \\ \\ \sf \longrightarrow \lambda \: = \cancel\cfrac{10}{0.1} \\ \\ \\ \sf \longrightarrow \lambda \: =100m[/tex]

Therefore,

Wavelength of the wave is 100 metres.

The term group polarization refers to the tendency for.

Answers

Polarization refers to the tendency for acquiring specific orientation by the oscillation.

What is polarization?

Polarization is a property that specifies the geometrical orientation of the oscillations. In a transverse wave, the direction of the oscillation is perpendicular as compared to other that have parallel.

So we can conclude that Polarization refers to the tendency for acquiring specific orientation by the oscillation.

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name one type of energy the washing machine wastes when spinning the clothes

Answers

Answer:

Electrical Energy

The Electricity Rotates the spinning part of Washing machine and It spinns clothes.

meters/second?
A car accelerates from 4 meters/second to 16 meters/second in 4 seconds. The car's acceleration is what meters/second squared

Answers

Answer:

the acceleration of the car is 3 m/s².

Explanation:


Extension Question
If the scale used to measure the mass of the unknown material maxes out at a
lower value than the actual mass of the material, then...
o the measured specific heat will be greater than the actual specific heat.
o the measured specific heat will be less than the actual specific heat.

Answers

The measured specific heat will be less than the actual specific heat if a lower value is gotten than the actual mass.

What is Specific heat capacity?

This is defined as the quantity of heat needed to raise a substance's temperature by 1 degree Celsius.

If a substance has a low specific heat capacity , it loses water easily which makes the mass when measured to be smaller than the actual value.

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Compare and contrast dominant and subordinate objects in artwork. What is one thing that makes them different from each other?A. The dominant generally captures our eyes; the subordinate is given the least amount of emphasis.B. The dominant is always found in the negative space; the subordinate is always found in the positive space.C. The dominant is always found in the negative space; the subordinate is always found in the positive space.D. The dominant is the background of the image; the subordinate is in the middle ground of the composition. Which is the solution to the inequality?y + 15 less-than 3 The European Economic Community aimed to improve post-war European economies recover byMaking it easier for workers living in one country to work in another.To eliminate trade restrictions among member states.To make it easier for businesses from different countries to conduct businessAll the above Identify the species of horse fossils that would be found in the uppermost layer of rock. A Orohippus B Mesohippus C Hyracotherium D Miohippus How long a cardiorespiratory endurance workout session lasts is called. The price of general admission Twins tickets increased from $7 to $18 when they moved to Target Field. What is the percent increase in the ticket price? Explain how you know What are the different 4 hardwood groups according to their classification? which of the statements accurately describes how water moves through earth and its atmosphere 10. Which author wrote Leaves of Grass?A. Emily DickinsonB. Herman MelvilleC. Ralph Waldo EmersonD. Walt Whitman 4 sentences about ester bunny Which of the following is the best definition of central idea?A.) the most important thought in the textB.) the attitude held by the author towards the subject or audience of their textC.) the specific reason for or intent in writingD.) information that clarifies, proves, or explains the main idea of the text WORTH 30 POINTS !!!!!Which statement is true ? Technical advancements in weaponry and updated tactics made the Civil War very bloody. Technical advancements in weaponry and outdated tactics would make this an extremely bloody war. Technical advancements in weaponry and outdated tactics would result in very few casualties during this war. 4/5 and -4/5 are same or not A block of mass m is suspended from two identical springs of negligible mass, spring constant k, and unstretched length l How did trade play a role in the development of early civilizations? Call your best friend and invite him to go to the amusement park with you today. Tell him/her about the weather forecast and how it'll be a great day to go to the park. (answer in Spanish) Find the value of x that makes m || n x= What are the main constituents of the jovian planets?. Why are drugs like depressants described as the opposite of amphetamines? a. depressants can induce feelings of euphoria while stimulants can cause severe pain. b. depressants can result in death while stimulants cannot. c. stimulants slow breathing and heart rate while depressants increase those functions. d. stimulants increase breathing and heart rate while depressants slow these functions. please select the best answer from the choices provided. a b c d Pls help me! 19 and 20.