What is the wave velocity if the wave length is 100 cm and the frequency is 2 Hz?​

Answers

Answer 1

Answer:

velocity = 2m/s

using v=fΠ

convert 100 CM to m

Answer 2

Answer:

200 cm per second

Explanation:

The equation for wave velocity=wavelength x frequency, since the wavelength is 100 and the frequency is two, the equation would be 100 x 2, which equals 200. Therefore, the correct answer is 200 cm per second.


Related Questions

PLEASE HELP ASAP!! IF YOU CAN

Answers

As current increases, the magnetic field strength increases.

what is v^2=0.05-4.9 please i need this asap​

Answers

Answer:

v =2.02

Explanation:

v^2=0.05-4.9

v^2=-4.85

square root both side

v=2.02

^^^^this is a not a perfect square  

why displacement has a fixed direction and change in position​

Answers

The position of an object is where it sits on the number line. When the object moves to another position, its displacement is the second position minus the first position.

Δ x = x2 − x1

The word displacement implies we keep track of which way the movement occurs. In one dimension the direction is indicated by the sign: negative if to the left and positive if to the right. The word distance means how far the object moves regardless of direction. It is always positive and is equal to the absolute value, or magnitude, of the displacement.

If one follows the rule of always subtracting the first position from the second, the sign always works out to be positive if the displacement is to the right and negative if the displacement is to the left.

Two persons A and B are walking with the speed of 5km/h and 6km/h respectively in the same direction. Find how far will B be from A after 2 hours??

Answers

Answer:2 km

Explanation:

what are the main components of circulatory system and what is the function?

Answers

Answer:

Explanation:

The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.

What is the mass of a 7 kg bowling ball on the moon?

Answers

Answer:

7 kg

Explanation:

Mass remains the same, regardless of gravity. If the mass of the bowling ball is 7kg on Earth, the mass on the moon will be 7kg as well.

Find the potential energy of the bowling ball from the exercise above that is sitting on a shelf 2 meters high. Remember that g = 9.8m/s. Write equation, substitute values and units into equation, and show final answer.

Answers

Answer:

Explanation:

bv

In the lab, a student is investigating the effects of texting and driving on reaction time. A
student determines his/her reaction time by having a friend release a meter stick at
random intervals while the driver sends text messages. The student, on average,
catches the meter stick after it has traveled 0.64 m.
How far will the student
travel in a car moving at 25 m/s horizontally before reacting?

9.0 m
0.64 m
69 m

Answers

We know that we can write the speed of something as the quotient between the distance it moves and the time it takes to move that distance.

speed = distance/time

Using this, we will find that the correct option is the first one, 9.0 m

The information we know is:

The student, on average, catches the meter stick after it has traveled 0.64m

We need to transform this into time.

Assuming that the meter stick is just released, the only acceleration it will have is the gravitational one, so we have:

a(t) = -9.8m/s^2

To get the velocity of the stick we need to integrate over time, as the it is just released, it will not have initial velocity, thus the constant of integration is zero:

v(t) = (-9.8m/s^2)*t

To get the position equation we need to integrate again, and as the initial position is relative, we can define it as zero, so again the constant of integration is zero:

p(t) = (1/2)(-9.8m/s^2)*t^2

p(t) = (-4.9 m/s^2)*t

We know that the student catches the stick after it traveled (downwards) 0.64m

Then we need to solve:

-0.64m =  (-4.9 m/s^2)*t

√[(-0.64m)/(-4.9m/s^2)] = t = 0.36s

So the reaction time of the student is 0.36 seconds.

Now we can use the first equation:

speed = distance/time

And rewrite it as:

distance = speed*time

So if the car moves at 25m/s and the student needs 0.36 s to react, the distance that he/she will move in that time frame is:

d = (25m/s)*0.36s = 9.0m

So the correct option is the first one.

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physical egicatinal facts

Answers

Answer:

???????? please give for info

if your having a bad day I LOVE YOU YOUR WORTH IT YOU MEAN THE WORD TO MEEYOU GET KISSES MWHAAAAA
THANK YOU FOR LIVING ILYYY

Answers

Answer:

O: girl- aww your so sweeet thanks for that!!!!! like fr ive

been feeling so sad):

Using the formula for kinetic energy of a moving particle k=12mv2, find the kinetic energy ka of particle a and the kinetic energy kb of particle



b. remember that both particles rotate about the y axis. express your answers in terms of m, ω, and r separated by a comma.

Answers

Complete Question

The complete question is shown on the first uploaded image

Answer:

The kinetic energy for particle a is  [tex]K_a  =  \frac{9}{2}  mr^2 w^2[/tex]

The kinetic energy for particle b is   [tex]K_b  =  m w^2r^2 [/tex]

Explanation:

From the question we are told that

   The mass of particle a  is  [tex]m[/tex]  

   The mass of particle b is  [tex]2 m[/tex]  

Generally the kinetic energy for  particle a is mathematically represented as  

       [tex]K_a  =  \frac{1}{2} m v^2[/tex]

Here [tex]v_a[/tex] is the linear velocity of particle a which is mathematically represented as

         [tex]v_b  =  w *  3r[/tex]

So

      [tex]K  =  \frac{1}{2} m {w *  3r}^2[/tex]

=>   [tex]K_a  =  \frac{9}{2}  mr^2 w^2[/tex]

Generally the kinetic energy for  particle a is mathematically represented as  

    [tex]K_b  =  \frac{1}{2} 2m v_b^2[/tex]

Here [tex]v_b[/tex] is the linear velocity of particle a which is mathematically represented as

         [tex]v_b  =  w *  r[/tex]

So

      [tex]K_b  =  m (wr)^2[/tex]

=>    [tex]K_b  =  m w^2r^2[/tex]

The kinetic energy of the particle in terms of angular speed (ω), mass of the object (m) and the radius of the path is [tex]\frac{1}{2} m \omega ^2 r^2[/tex].

The given parameters;

kinetic energy of the particle, K.E = ¹/₂mv²

The kinetic energy of the of the particle in terms of the angular velocity is calculated as follows;

[tex]K_b = \frac{1}{2} m (\omega r)^2\\\\K_b = \frac{1}{2} m \omega ^2 r^2[/tex]

where;

m is the mass of the objectω is the angular speed of the objectr is the radius of the circular path

Thus, the kinetic energy of the particle in terms of angular speed (ω), mass of the object (m) and the radius of the path is [tex]\frac{1}{2} m \omega ^2 r^2[/tex].

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HELP FAST PLEASE. NEWTON'S LAWS.

Answers

I think it is a Anursa or momentum

An oil drop (m = 1.6 x 10-16 kg) is suspended between plates separated by 1.8 cm. The voltage
across the plates is 125 V. Is this possible?

Answers

Answer:

E = V / d       125 V / .018 m = 6940 V/m     electric field

F = E Q       force on Q due to E

F = E n e     where n is the number of electrons in Q

m g = E n e

n = m g / E e     where n is the number of electrons e needed to support drop

n = 1.6 * 10E-16 * 9.8 / (6940 * 1.6 * 10E-19)

n = 1.41

Since n needs to be an integral number of charges, the drop would

not be suspended (motionless under these conditions).

my little cousin wanted me to ask this so, How does thermal energy travel to Earth?

Answers

Heat moves in three ways: Radiation, conduction, and convection. Radiation happens when heat moves as energy waves, called infrared waves, directly from its source to something else. This is how the heat from the Sun gets to Earth. In fact, all hot things radiate heat to cooler things.

The magnitude of vector A is 10. Which of the following could be the components of A?
a) Ax= 5 , Ay= 5
b) Ax= 6 , Ay= 8
c) Ax= 7 , Ay= 9
d) Ax= 10 , Ay= 10​

Answers

Answer: B. Ax = 6, Ay=8

Explanation:

Chanel has some cotton candy that came in a cloudy shape. She wants to make it more dense. Which describes the candy before and after Chanel manipulated it? The candy before was a cube, and the candy after was a ball. The candy before was compacted, and the candy after was fluffy. The candy before was fluffy, and the candy after was compacted. The candy before was a ball, and the candy after was a cube.

Answers

Answer:

The candy before was fluffy, and the candy after was compacted.

Explanation:

By definition, something that is fluffy is something very soft, and when you talk about fluffy food (e.g. cakes, cotton candy) it is food that has a lot of air in it. In this case, the cotton candy originally had the shape of a cloud and was not dense, therefore, it was fluffy.

Something that is compact, it something that is dense, solid and generally small. Since Chanel wanted her cotton candy to be more dense, she compacted it .

Answer:

c

Explanation:

Consider any ocean wave, what is the relationship between an ocean wave and the energy of that wave?
A) Wave energy decreases as the wave moves closer to the shore
B) The greater the wavelength, the more kinetic energy the wave has
C) Wave energy is directly proportional to the amplitude of the wave
D) Wave energy increases with frequency and decreases with wavelength

Answers

Answer:

C.

Explanation:

Wave energy is directly proportional to the amplitude of the wave.  It is a square function.. double the amplitude (wind/solar power picks up) the energy in the ocean wave is quadrupled.

Wave energy is directly proportional to the amplitude of the wave. Therefore, option C is correct.

What is wave energy?

Waves of heat, light, sound, and water carry a variety of energies. All types of energy can be converted into work because energy is defined as the capacity to perform work. The movement of an object in the direction of the force acting on it is referred to as work in science. When they move items, waves do really work. This process is evident when sand is carried or large logs are moved across ocean basins.

Work can also be transformed into the acoustic energy produced when waves crash on the coast. The potent force of waves can also be used to move generator components and generate electricity.

A wave's energy content is influenced by its height, wavelength, and breaking point in addition to other factors. When waves of identical wavelengths fall back to sea level, the wave with the greater amplitude will release more energy than the wave with the lesser amplitude. Therefore, option C is correct.

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#SPJ5

10- The voltage across the generator of
the circuit of figure 13 is 12V and
the voltmeter V2 indicates 8V:
А
ס
N.
V
L1
L2
B
L
Fig.13
a- What would the voltmeter V3 indicate?
Justify the answer
b- What would the voltmeter Vi indicate?
Justify the answer

Answers

hey! i just wanted to ask if you found the answer because i’m looking for it

force
(smaller)
large piston
small piston
distance
moved
distance
moved
A
force (greate
liquid that cannot
be compressed
The weight of the car is 5000N. The area of the piston (B) that lifts the car is 0.
(a) What is the pressure needed in the liquid to lift the car?​

Answers

Answer:

Answer is a force liquid that cannot be compresed

on edgenuity

Explanation:

What does normal force have to do with gravity?

Answers

Answer:

grav times mass equals force

Explanation:

Which two options are forms of kinetic energy?
A. Nuclear energy
B. Thermal energy
C. Chemical energy
D. Gravitational energy
E. Sound energy

Answers

Answer:

B. Thermal energy

E. Sound energy

Explanation:

Thermal and sound energy is kinetic energy.

Kinetic energy is the energy that results as a function of the motion of a body or the particles of the medium.

Sound energy is transmitted by the vibration of the particles in the air. The vibration leads to movement of the particles and hence, kinetic energy is produced.

Thermal energy originates as a result of the temperature differences in a body. This temperature difference leads to the increase in the kinetic energy of some particles which also causes vibration and motion of the particles.

The two options which are forms of kinetic energy include:

Thermal energySound energy

What is Kinetic energy?

Kinetic energy is the form of energy possessed by a body by virtue of its

motion.

Thermal energy possesses kinetic energy as a result of the high

temperature bringing about an increase in the collision of the particles.

Sound energy also possesses kinetic energy as a result of the vibrations

through the movement of energy in a medium.

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What happens to the structure of an atom when the atom is ionised?​

Answers

Answer: Explanation:

If the number of electrons is equal to the number of protons then the atom is uncharged and is electrically neutral. However, atoms can gain or lose electrons: increasing or decreasing the negative charge. Ionisation is the addition or removal of an electron to create an ion. ..Gaining an electron creates a negative ion.

An observer recorded the following data for the motion of a car undergoing constant acceleration.
Time (s)
3.0
5.0
6.0
Speed (m/s)
4.0
7.0
8.5
What was the magnitude of the acceleration of the car?
4.5 m/s2
O 2.0 m/s2
3.0 m/s2
1.5 m/s2

Answers

Option D) 1.5 m/s² is the correct answer.

The magnitude of the acceleration of the car is 1.5 m/s².

given the data in the question;

record of the observation;

Time(s)      Speed(m/s)

3.0                4.0

5.0                7.0

6.0                8.5

Since its undergoing constant acceleration, we can make use any two from the three data recorded.

So, lets consider motion between t₁ = 3.0s and t₂ = 5.0s

Initial velocity at t₁ ; u = 4.0 m/s

final velocity at t₂; v = 7.0 m/s

Now, Time Elapsed; [tex]t = t_2 - t_1 = 7.0s - 5.0s = 2.0s[/tex]

To determine the magnitude of acceleration "a", we use the first equation of motion which says;

[tex]v = u + at[/tex]

we make "a" the subject of the formula

[tex]a =\frac{v - u}{t}[/tex]

so we substitute in our values;

[tex]a = \frac{(7.0m/s) - (4.0m/s)}{2.0s}[/tex]

[tex]a = \frac{3.0m/s}{2.0s}[/tex]

[tex]a = 1.5 m/s^2[/tex]

Therefore, the magnitude of the acceleration of the car is 1.5 m/s².

Option D) 1.5 m/s² is the correct answer.

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The force between two charged balls is 6.0 x 10-6 N. If we
double the distance and the charges on one ball, what's the
new force between the two charged balls? k= 9.0 x 10°

Answers

If you double the distance the force drops to a quarter so 6/4 x 10 ^-6 N. If you then double the charge on one ball, the force would double to 12/4 x 10^-6 = 3 x 10 ^-6 N

A ball is shot horizontally at 17.3m/s from the roof of a building 55.2 m tall, (use g = 9.8 m/s ^ 2) How far from the base of the building does the ball land?

Answers

Given that,

The initial speed of a ball, u = 17.3 m/s

It is shot from the roof of a 52 m tall building, h = 52 m

It is required to find the distance from the base of the building the ball land. Let the distance be d.

Final velocity of the ball, v = 0 (when it lands)

We can use third equation of motion to find it.

[tex]v^2-u^2=2ad[/tex]

a = -g

[tex]-u^2=-2gd\\\\d=\dfrac{u^2}{2g}\\\\d=\dfrac{(17.3)^2}{2\times 9.8}\\\\d=15.26\ m[/tex]

So, it will land at a distance of 15.26 m.

How is spring force different in a compressed spring versus a stretched spring?

Answers

Answer:

if you pull on a spring and stretch it, then you do work. that's bc you're applying a force over a displacement. your pull is the force and the amount that you stretch the spring is the displacement. a spring can be stretched or compressed.

A force of 6.0 Newton’s gives a 2.0kg block an acceleration of 3.0m/s to the right. The force of friction acting on the block is?

Answers

The force of friction is zero.
Using F = m a = the force needed is 6 N which means no friction can be acting.

on Mars, the acceleration due to gravity is 3.8 m/s². what would a book weigh on the surface of Mars?​

Answers

Answer: 5.5

Explanation: its simply different from the others

How long does it take a cyclist to increase his velocity from 4.0m/s to 10m/s if he accelerates at 3.0m/s2

Answers

It will take four seconds because you have to increase the speed by 6 m/s, and if you accelerate at 3m/2s, it will take four seconds to accelerate

which of the following is most likely to happen when energy is transferred to an object?

Answers

Answer:

B. the object will begin to move

Explanation:

If energy is transferred the object will definitely change so it CANNOT be "A". If you add energy the object will have more force so it CANNOT be "C". The mass of an object can't increase just by giving an object energy so it CANNOT be "D"

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you have three 1 dollar bills and 2 10 dollar bills in your wallet. you select a bill at random Use the drop-down menu to complete the statement. Increasing the amount of current that flows through a wire________ the strength of an electromagnet. Does anyone know how to do this ???? Or how to find answers :( How can we confirm that a sketch is fully constrained? *( In AutoDesk Inventor) The value of a share of common stock depends on the cash flows it is expected to provide, and those flows consist of the dividends the investor receives each year while holding the stock and the price the investor receives when the stock is sold. The final price includes the original price paid plus an expected capital gain. The actions of the marginal investor determine the equilibrium stock price. Market equilibrium occurs when the stock's price is -Select-less thanequal togreater thanCorrect 1 of Item 1 its intrinsic value. If the stock market is reasonably efficient, differences between the stock price and intrinsic value should not be very large and they should not persist for very long. When investing in common stocks, an investor's goal is to purchase stocks that are undervalued (the price is -Select-abovebelowequivalent toCorrect 2 of Item 1 the stock's intrinsic value) and avoid stocks that are overvalued.The value of a stock today can be calculated as the present value of -Select-a finitean infiniteCorrect 3 of Item 1 stream of dividends:This is the generalized stock valuation model. We will now look at 3 different situations where we can adapt this generalized model to each of these situations to determine a stock's intrinsic value:1. Constant Growth Stocks;2. Zero Growth Stocks;3. Nonconstant Growth Stocks.Constant Growth Stocks:For many companies it is reasonable to predict that dividends will grow at a constant rate, so we can rewrite the generalized model as follows:This is known as the constant growth model or Gordon model, named after Myron J. Gordon who developed and popularized it. There are several conditions that must exist before this equation can be used. First, the required rate of return, rs, must be greater than the long-run growth rate, g. Second, the constant growth model is not appropriate unless a company's growth rate is expected to remain constant in the future. This condition almost never holds for -Select-maturestart-upCorrect 4 of Item 1 firms, but it does exist for many -Select-maturestart-upCorrect 5 of Item 1 companies.Which of the following assumptions would cause the constant growth stock valuation model to be invalid?The growth rate is zero.The growth rate is negative.The required rate of return is greater than the growth rate.The required rate of return is more than 50%.None of the above assumptions would invalidate the model.-Select-Statement aStatement bStatement cStatement dStatement eCorrect 6 of Item 1Quantitative Problem 1: Hubbard Industries just paid a common dividend, D0, of $1.60. It expects to grow at a constant rate of 2% per year. If investors require a 10% return on equity, what is the current price of Hubbard's common stock? Round your answer to the nearest cent. Do not round intermediate calculations.$ per shareZero Growth Stocks:The constant growth model is sufficiently general to handle the case of a zero growth stock, where the dividend is expected to remain constant over time. In this situation, the equation is:Note that this is the same equation developed in Chapter 5 to value a perpetuity, and it is the same equation used to value a perpetual preferred stock that entitles its owners to regular, fixed dividend payments in perpetuity. The valuation equation is simply the current dividend divided by the required rate of return.Quantitative Problem 2: Carlysle Corporation has perpetual preferred stock outstanding that pays a constant annual dividend of $2.00 at the end of each year. If investors require an 10% return on the preferred stock, what is the price of the firm's perpetual preferred stock? Round your answer to the nearest cent. Do not round intermediate calculations.$ per shareNonconstant Growth Stocks:For many companies, it is not appropriate to assume that dividends will grow at a constant rate. Most firms go through life cycles where they experience different growth rates during different parts of the cycle. For valuing these firms, the generalized valuation and the constant growth equations are combined to arrive at the nonconstant growth valuation equation:Basically, this equation calculates the present value of dividends received during the nonconstant growth period and the present value of the stock's horizon value, which is the value at the horizon date of all dividends expected thereafter.Quantitative Problem 3: Assume today is December 31, 2013. Imagine Works Inc. just paid a dividend of $1.15 per share at the end of 2013. The dividend is expected to grow at 15% per year for 3 years, after which time it is expected to grow at a constant rate of 6% annually. 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Both lowered food supplies in Europe. Both were caused by social unrest. Wingate Company, a wholesale distributor of electronic equipment, has been experiencing losses for some time, as shown by its most recent monthly contribution format income statement, which follows:Sales $1,584,000Variable expenses $610,020Contribution margin $973,980Fixed expenses $1.071,000Net operating income (loss) $(97,020)In an effort to isolate the problem, the president has asked for an income statement segmented by division. Accordingly, the Accounting Department has developed the following information:East DivisionSales $434,000Variable expenses as a percentage of sales 53%Traceable fixed expenses $261,000Central DivisionSales $650,000Variable expenses as a percentage of sales 20%Traceable fixed expenses $357,000West DivisionSales $500,000Variable expenses as a percentage of sales 50%Traceable fixed expenses $204,0001. Prepare a contribution format income statement segmented by divisions, as desired by the president.2-a. As a result of a marketing study, the president believes that sales in the West Division could be increased by 14% if monthly advertising in that division were increased by $29,000. Calculate the incremental net operating income.2-b. Would you recommend the increased advertising? what are the colonist's negative aspects? The term internal conflict refers to a struggle between a character andAlbcnature.society.him- or herself.another character. Which historical figure was inspired by Christian teachings and the idea of "theKingdom of God"?A. AkhenatenB. SocratesC. Martin Luther KingD. None of the above The Nile River was important to Egypt and Nubia because it... 1. Jen went scuba diving. She makes the first stop on her descent at 45 meters below thesurface of the water. From that point she dives down further, stopping every 10 meters. Ifshe makes 3 additional stops, at what depth will she be? If the place these marbles in a bag close your eyes and choose a marble what is the probability that it will be pink? Why werent the Indians allowed to vote. Use specific historic details What is the value of (2,820 8) 5? PLEASE HELP! ASAP! BRAINLEST TO PERSON WHO DOES THE BEST!What are some similarities in hierarchy paintings and partial art that originated these art forms? Differences? PLEASE HELP.!! ILL GIVE BRAINLIEST *EXTRA POINTS* DONT SKIP.!! :((