Base your answer to this question on the information below and on your knowledge of physics.
A wave traveling through a uniform medium has an amplitude of 0.20 meter, a wavelength of 0.40 meter, and a frequency of 10 hertz.
Determine the period of this wave.
What’s the period of this wave ?
Answers
Answer:
T=1/f
= 1/10
= 0.1 s
v = wavelength × frequency
= 0.40m × 10 Hz
= 4ms^-1
T = wavelength / velocity
= 0.04m / 4 ms^-1
= 0.1 m
Explanation:
so first i used the formula T=1/f and i found that the period, T is 0.1s
and secondly , to check whether i got the correct answer , i used a different formula
i used the formula T = wavelength / velocity
but there's an unknown in it , that's the velocity
so to find the velocity , i used the formula v = wavelength × frequency
when i've done the calculation , the second value of T is same as the first value of T
so , the value of the period, T is 0.1s
Related Questions
a charge is placed 33 cm away from another charge. the charges are both 1.2 x 10^-5 coulombs. what is the force on each other
Answers
1.44*10^-3N is the force on each other. when 33 centimeters separates one charge from another charge. They both have charges of 1.2 x 10-5 coulombs.
Charge on the first sphere, q 1 =1.2 x 10^-5 C
Charge on the second sphere, q 2 =1.2 x 10^-5 C
Distance between the spheres, r=30cm=0.3m
F= 4πε
q 1 q 2/ r2
Where, ε 0
= Permittivity of free space 4πε 0
=9×10^9Nm2
F= (0.33) 2
1.2 x 10^-5 * 1.2 x 10^-5 C = 1.44*10^-3N
Hence, force between the two small charged spheres is 1.44*10^-3N.
The charges are of same nature. Hence, force between them will be repulsive.
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An air-track cart with mass m 1 =0.34 kg and initial speed v 0 =0.80 m/s collides with and sticks to a second cart that is at rest initially. Part A If the mass of the second cart is m 2 =0.45 kg, how much kinetic energy is lost as a result of the collision? Express your answer to two significant figures and include appropriate units.
Answers
The kinetic energy lost as a result of collision is approximately 0.066 J.
The problem involves two carts on an air track. The first cart, with a mass of 0.34 kg and an initial speed of 0.80 m/s, collides with and sticks to the second cart, which is initially at rest and has a mass of 0.45 kg. We need to determine how much kinetic energy is lost as a result of the collision.
To solve this, we can use the principle of conservation of momentum. According to this principle, the total momentum before the collision is equal to the total momentum after the collision.
The momentum of an object is given by the product of its mass and velocity. So, before the collision, the momentum of the first cart is (0.34 kg) * (0.80 m/s) = 0.272 kg·m/s. Since the second cart is at rest, its momentum before the collision is zero.
After the collision, the two carts stick together and move as a single object. Let's call their final velocity \(v_f\).
Using the conservation of momentum, we have:
\((0.34 kg + 0.45 kg) * v_f = 0.272 kg.m/s\)
Simplifying, we get:
\(v_f = 0.272 kg.m/s / (0.34 kg + 0.45 kg)\)
\(v_f = 0.272 kg.m/s / 0.79 kg\)
\(v_f = 0.344 m/s\)
The kinetic energy before the collision is given by \((1/2) * (0.34 kg) * (0.80 m/s)^2 = 0.1088 J.\)
The kinetic energy after the collision is given by \((1/2) * (0.34 kg + 0.45 kg) * (0.344 m/s)^2 = 0.0424 J.\)
The kinetic energy lost as a result of the collision is the difference between the initial and final kinetic energies:
\(0.1088 J - 0.0424 J = 0.0664 J\)
Rounded to two significant figures, the energy lost is 0.066 J
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A certain superconducting magnet in the form of a solenoid of length 0.28 m can generate a magnetic field of 7.0 T in its core when its coils carry a current of 80 A. The windings, made of a niobium-titanium alloy, must be cooled to 4.2 K. Find the number of turns in the solenoid.
Answers
Answer:
The number of turns in the solenoid is 19506.
Explanation:
Length of solenoid, L = 0.28 m
Magnetic field, B = 7 T
Current, I = 80 A
Let the number of turns is N.
The formula used to find the magnetic field is
\(B = \frac{\mu 0N I}{L}\\\\7 = \frac{4 \times 3.14\times 10^{-7}\times N\times 80}{0.28}\\\\N = 19506\)
how many atoms of bromine (br) are present in this molecule 4pbr3
Answers
There are 7 atoms of bromine (br) are present in this molecule, 4pbr₃.4pbr3 is divided into 4 pb atoms and 7 bromine atoms.
What is an atom?
The atom consists of matter that may be split without releasing electrical charges.
It's also the smallest unit of matter with chemical element features. As a result, the atom is the fundamental unit of science.
In the nucleus, proton and the neutron is existing. The condition of the atom to be electrically neutral is that the number of the proton and electron should be the same.
4pbr₃, consists 4 atoms of pb and 7 atoms of bromine.
Hence.there are 7 atoms of bromine (br) are present in this molecule, 4pbr₃.
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If mass of an empty 7.0 mL pycnometer is 10.2g and the mass of the same pycnometer with an unknown liquid is 21.8g. Determine the density of the unknown liquid to ONE DECIMAL PLACE in g/mL.
Answers
The formula for calculating density is expressed as
Density = mass/volume
From the information given,
mass of empty pycnometer = 10.2
mass of the same pycnometer with an unknown liquid is 21.8.
Mass of unkown liquid = 21.8 - 10.2 = 11.6
volume of unknown liquid = 7
Thus,
Density = 11.6/7
Density = 1.7 g/ml
At what rate would the current in a 100-H inductor have to change to induce an emf of 1000 V in the inductor
Answers
To produce an EMF of 1000 V in the inductor, the current in the inductor must fluctuate at a rate of 10 A/s.
How to find induced emf?According to Faraday's law of electromagnetic induction, the magnitude of the induced EMF (electromotive force) in a coil is proportional to the rate of change of magnetic flux through the coil. The formula for this law is:
EMF = -N(dΦ/dt)
where EMF is the induced electromotive force, N is the number of turns in the coil, and dΦ/dt is the rate of change of magnetic flux.
In the case of a 100-H inductor, the induced EMF is 1000 V. Therefore, rearrange the above formula to solve for the rate of change of current, which gives:
dI/dt = -EMF/L
where L is the inductance of the coil (100 H).
Substituting the given values:
dI/dt = -(1000 V) / (100 H) = -10 A/s
Therefore, the current in the inductor would have to change at a rate of 10 A/s to induce an EMF of 1000 V in the inductor.
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What separates the two sections of the solar system?.
Answers
Answer:
These two groups of planets are separated by the asteroid belt, a disk of small rocky bodies orbiting the sun between Mars and Jupiter.
Explanation:
Your welcome!
How is the answer D?
Answers
The graph that corresponds to 0.1 s in one complete cycle is graph D.
option D is the correct answer.
What is the period of a wave?The period of a wave is the time for a particle on a medium to make one complete vibrational cycle. Period, being a time, is measured in units of time such as seconds, hours, days or years.
Also, the period of a wave is the amount of time it takes for a wave to complete one wave cycle or wavelength.
From the given parameter, the coil rotates 10 times in one second. The period of the coil is calculated as;
Period = 1 s / 10
Period = 0.1 s
From the graphs, the only option that has one complete cycle in one second is option D.
Check option D, half cycle is 0.05 s and one full cycle is 0.1 s.
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Define potential difference in a uniform electric field?
Answers
Explanation:
For example, a uniform electric field E is produced by placing a potential difference (or voltage) ΔV across two parallel metal plates, labeled A and B. ... The relationship between ΔV and E is revealed by calculating the work done by the force in moving a charge from point A to point B.
Since monsoons are storms that usually occur during a specific time of year in certain regions, you could not compare them to thunderstorms. please select the best answer from the choices provided t f
Answers
The statement "Since monsoons are storms that usually occur during a specific time of year in certain regions, you could not compare them to thunderstorms" is absolutely false.
What is monsoon?Monsoon may be characterized as a seasonal transformation in the direction of the predominant, most potent, currents of a region. It blows from cold to warmer regions of the geographical locations.
Thunderstorms basically originated identically with monsoons more frequently. Monsoon involves sudden and gradual rainfall, extreme wind, and a drop-down in temperature.
The occurrence of monsoon is fixed at different geographical locations, but the occurrence of thunderstorms will not be definite or predominantly known.
Thus, the statement "Since monsoons are storms that usually occur during a specific time of year in certain regions, you could not compare them to thunderstorms" is absolutely false.
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Answer:
False
Explanation:
What nuclear reaction is shown in the equation below
Answers
Answer:
nuclear fission
Explanation:
nuclear fission
Answer: Nuclear fission
Explanation:
A student is holding a globe to represent the Earth another student shining a flashlight at the globe. The flashlight represents the Sun. How could the student use this model to show the cycle of day and night on Earth?
Answers
To show the cycle of day and night on Earth using this model, the student holding the globe (representing the Earth) can rotate the globe on its axis while the other student shines the flashlight (representing the Sun) at the globe.
What is a day-night cycle?The day-night cycle, also known as the diurnal cycle, is the regular pattern of changes in light and darkness that occur over a 24-hour period on Earth.
To show the cycle of day and night on Earth using this model, the student holding the globe (representing the Earth) can rotate the globe on its axis while the other student shines the flashlight (representing the Sun) at the globe. As the globe rotates, different parts of the surface will be illuminated by the light, while other parts will be in shadow.
To simulate daytime, the student shining the flashlight can direct the light toward the part of the globe facing the light source, while the student holding the globe rotates it so that the illuminated part faces the light. To simulate nighttime, the student can direct the light away from the part of the globe facing the light source, while the student holding the globe rotates it so that the unilluminated part faces the light.
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why is it important to remember that the 100x lens is longer than the lower power lens
Answers
It is important to remember that the 100x lens is longer than the lower power lens because it affects the way we view and analyzes specimens under a microscope.
The higher magnification power of the 100x lens allows us to see more detail and smaller structures that may not be visible with a lower-power lens. However, the trade-off is that the field of view is smaller and the depth of field is shallower. Therefore, it is important to use the appropriate lens for each stage of observation and analysis to ensure accurate and comprehensive results. Additionally, mishandling or improper use of the higher-power lens can damage both the lens and the specimen being viewed.
It is important to remember that the 100x lens is longer than the lower power lens because the higher magnification achieved by the 100x lens requires a longer focal length. A longer focal length allows for greater image detail and resolution, which is essential for observing and analyzing small or intricate specimens under the microscope. Additionally, the increased working distance between the 100x lens and the specimen helps prevent potential damage to both the sample and the lens. Therefore, understanding the differences in lens length is crucial for effectively using a microscope and obtaining accurate, high-quality images of the subject being examined.
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If a ray of light in glass is incident on air surface at an angle greater than the critical angle, the ray will:
Answers
When a ray of light in glass is incident on an air surface at an angle greater than the critical angle, the ray will undergo total internal reflection.
Total internal reflection occurs when a ray of light traveling through a denser medium, such as glass, reaches the boundary with a less dense medium, such as air, at an angle greater than the critical angle. The critical angle is defined as the angle of incidence at which the refracted angle becomes 90 degrees, meaning the light would refract along the boundary.
However, if the incident angle is greater than the critical angle, no refraction occurs and the light ray is completely reflected back into the denser medium. This phenomenon is called total internal reflection. The angle of incidence at which total internal reflection occurs depends on the refractive indices of the two mediums involved.
Total internal reflection has various practical applications. It is used in fiber optics, where light signals are transmitted through optical fibers by bouncing off the fiber walls via total internal reflection. It is also employed in devices like prisms, binoculars, and periscopes to redirect and manipulate light.
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is light simply a small segment of the electromagnetic spectrum
Answers
Yes, light is simply a small segment of the electromagnetic spectrum. It is the part that our eyes can detect and perceive as visible light.
Light is a form of electromagnetic radiation, which is a type of energy that travels in waves. The electromagnetic spectrum is a range of all possible frequencies of electromagnetic radiation, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. Each type of electromagnetic radiation has a different wavelength and frequency.
Visible light is the portion of the electromagnetic spectrum that is visible to the human eye. It consists of different colors ranging from red to violet. When we see an object, it is because light reflects off the object and enters our eyes. This reflected light is made up of different colors, and our eyes perceive them as different shades and hues.
So, yes, light is simply a small segment of the electromagnetic spectrum. It is the part that our eyes can detect and perceive as visible light.
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Yes, light is simply a small segment of the electromagnetic spectrum. To get a long answer, let us define electromagnetic spectrum and light.Electromagnetic Spectrum This is the range of all electromagnetic radiation.
Electromagnetic radiation is energy that travels in the form of waves. They include microwaves, X-rays, gamma rays, visible light, radio waves, and others. These waves do not require a medium to travel and can move through a vacuum. They all travel at the speed of light and have different wavelengths and frequencies.LightLight is a form of electromagnetic radiation with a wavelength between 400 and 700 nm. The color of the light depends on the wavelength. Violet light has the shortest wavelength, while red light has the longest wavelength. When light passes through a prism, it splits into different colors due to the different wavelengths of the colors.
Light is a tiny section of the electromagnetic spectrum. It is located between ultraviolet radiation and infrared radiation. Electromagnetic radiation is classified based on its wavelength and frequency. As a result, the electromagnetic spectrum is divided into various areas, each with its own unique properties, ranging from short wavelength and high-frequency radiation to long wavelength and low-frequency radiation. Light is only a tiny portion of the spectrum, as previously mentioned. It falls within the visible spectrum, which ranges from 400 to 700 nm. This region includes all of the colors we can see with our eyes. The other parts of the electromagnetic spectrum are not visible to our eyes and must be detected with specialized equipment.
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a woman stands on a scale in a moving elevator. her mass is 66.0 kg, and the combined mass of the elevator and scale is an additional 784 kg. starting from rest, the elevator accelerates upward. during the acceleration, the hoisting cable applies a force of 9030 n. what does the scale read (in n) during the acceleration?
Answers
The scale will read 8,996 N during the acceleration.
The force applied to the woman by the scale is the sum of her weight and the weight of the elevator and scale (66.0 kg + 784 kg = 850.0 kg). This can be calculated using the equation
Force = Mass x Acceleration (F = ma).
The acceleration is given by the force applied (9030 N) divided by the total mass (850.0 kg), which gives a result of 10.6 m/s2.
We then multiply this acceleration by the mass of the woman (66.0 kg) to get the force applied to the woman by the scale, which is 696 N.
We then add this to the weight of the elevator and scale (784 kg) to get the total force that the scale reads, which is 8,996 N.
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A 40 kg girl is pushing a 40 kg boy in a 20 kg toy wagon. The wagon is moving at a constant speed of 2.0 m/s. Calculate the combined kinetic energy of the boyWhat is the acceleration of a 50 kg object pushed with a force of 500 newtons?
Answers
Answer:
Combined kinetic energy =120 joules
Acceleration= \(10 m/s^2\)
Explanation:
Given that the mass of the girl= 40 kg.
The mass of the boy= 40 kg.
The mass of the wagon = 20 kg.
The combined velocity of the boy and the wagon, v= 2.0 m/s.
The kinetic energy of any object having mass m and moving with the speed of v m/s, is
K.E.= \(\frac 1 2 mv^2\).
Here, the combined mass of the boy and the wagon = 40 + 20 = 60 kg.
So, the combined kinetic energy of the boy and the wagon
\(=\frac 12 60 \times 2^2= 120\) J
When a force is applied on the object having the mass m, then
F=ma,
where a is the acceleration produced in the object.
Here, F=500 newtons and m= 50 kg.
so, \(500=50\times a\)
\(\Rightarrow a = 500/50=10 m/s^2\).
Hence, the combined energy is 120 joules and the acceleration is 10 \(m/s^2\).
A fast moving car is moving on a straight road with an acceleration of 2m/s2. How much time will it require to change the velocity from 20m/s to 40m/s.
Please quick
Answers
Answer:
10seconds
Explanation:
use the formula a=v final_v inital/time
source of error in pendulum investigation
Answers
3. Since Aspeon is not expected togrow, Emily believes that the following equations can be used in the valuation analysis: (1) S=[EBIT−kd(D)](1−ks)
(2) V=S+D
(3) P=(V−D0)/n0
(4) n1=n0−D/P
(5) VL=VU+TD
Answers
The equations mentioned by Emily in the valuation analysis for Aspeon are as follows:
1) Equation (1): This equation represents the value of equity (S) and calculates it based on the EBIT (earnings before interest and taxes), the tax shield provided by debt (D), and the required return on debt (kd) and equity (ks). It implies that the value of equity is equal to the adjusted EBIT after deducting the tax shield from debt.
2) Equation (2): This equation calculates the total enterprise value (V) by adding the value of equity (S) and debt (D). It represents the total worth of the company, considering both equity and debt.
3) Equation (3): This equation calculates the price per share (P) by dividing the total enterprise value (V) minus the initial debt (D0) by the number of shares (n0). It represents the price per share based on the valuation of the company.
4) Equation (4): This equation calculates the new number of shares (n1) by subtracting the dividend (D) from the initial number of shares (n0) divided by the price per share (P). It represents the adjusted number of shares after the payment of dividends.
5) Equation (5): This equation calculates the levered value (VL) by adding the unlevered value (VU) with the tax shield value (TD). It represents the value of the company after considering the tax advantages of debt.
These equations provide a framework for valuation analysis, considering factors such as earnings, taxes, debt, and equity. They help assess the value and financial implications of Aspeon's growth prospects.
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Which of the following describes a transfer of energy through work?
A student carries a heavy backpack one km
O A laboratory burner is used to heat 250 ml of water to boiling,
O A woman pushes a luggage cart in an airport over a distance of 100 m
O A man pushes on a large piece of furniture for 15 min, but it does not move.
Answers
A red cart has a mass of 4 kg and a velocity of 5 m/s. There is a 2-kg blue cart that is parked and not moving, thus its velocity is 0 m/s.
The red cart hits the blue cart.
The blue cart starts to move forward with a velocity of 6 m/s. The red cart bounces off of the blue cart and moves backwards, at a velocity of 2 m/s.
Name the TYPE of collision that occurred.
Calculate the BEFORE momentum of the red cart. Use correct units.
Calculate the BEFORE momentum of the blue cart. Use correct units.
Calculate the AFTER momentum of the red cart. Use correct units.
Calculate the AFTER momentum of the blue cart. Use correct units.
Calculate the SYSTEM’S TOTAL MOMENTUM before the collision. Use correct units.
Calculate the SYSTEM’S TOTAL MOMENTUM after the collision. Use correct units.
EXPLAIN how this example supports the Law of Conservation of Momentum. Use the evidence to support your answer of how this example supports the Law of Conservation of Momentum. Use correct units. Be specific.
Answers
Answer:dam hold up
Explanation:
What parts are found in an electric generator? select 4 options. an armature a battery a permanent magnet an electromagnet brushes slip rings
Answers
The parts found in an electric generator for the conversion of electric energy into other forms of energy such as mechanical or chemical energy are an armature, a permanent magnet, an electromagnet brushes, and slip rings.
What is electric generator?
An electric generator is a device that converts motive power into electric power for use in an external circuit.
Parts of electric generators include the following;
an armaturea permanent magnetan electromagnet brushesslip ringsThese parts of electric generator helps in the generation of electricity or conversion of electric energy into mechanical energy or light energy or chemical energy.
Thus, the parts found in an electric generator for the conversion of electric energy into other forms of energy such as mechanical or chemical energy are an armature, a permanent magnet, an electromagnet brushes, and slip rings.
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Answer:
armature
permanent magnet
electromagnet
brushes
slip rings
Explanation:
edge 2022-2023
In a catapult,stored energy is to useful kinetic energy stores. what name is given to the stored energy?
Answers
Answer:
I think it's potential energy
Two objects are dropped from rest straight down from two different heights at the same time. It takes object A four times the amount of time as object B to reach the ground. If the initial height for object A is hA and that of object B is hB, how do the two heights compare
Answers
The object drop from heights. So the answer for this problem is that the two heights are proportional to the square of the time it takes for each object to reach the ground.
Let's say that the time it takes for object B to reach the ground is t. Since object A takes four times as long as object B to reach the ground, its time to reach the ground is 4t. We can use the equation h = 1/2gt^2 to find the height of each object.
Formula used= h = 1/2gt^2
For object B,
hB = 1/2gt^2
For object A,
hA = 1/2g(4t)^2 = 8hB.
Therefore, hA is eight times as high as hB.
The two heights are not the same. Object A's initial height is eight times that of object B. The final height of each object depends on the height they are dropped from and the time it takes to reach the ground, which is proportional to the square of the time.
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4. A microchip lets computers process information very quickly,
This statement is true
because???
Answers
Microchips are specifically designed to make computers process information much faster, and make the devices a lot more portable.
Magnetic field lines exit out of the . Magnetic field lines enter into the . Magnetic field lines travel around a bar magnet in
Answers
Answer:
Magnetic field lines exit out of the North pole . Magnetic field lines enter into the South pole. Magnetic field lines travel around a bar magnet in closed loops.
Explanation:
Magnetic field lines shows the direction of a magnetic force and how it acts, it gives the direction of the magnetic field at that point in time.
For a bar magnetic, the magnetic field lines runs from the north pole to the south pole, i.e. it exits the north pole and enters into the south pole. This magnetic field lines also go through the magnet forming closed loops without ends.
Answer:
Magnetic field lines exit out of the
✔ north pole
.
Magnetic field lines enter into the
✔ south pole
.
Magnetic field lines travel around a bar magnet in
✔ a closed loop
.
Explanation:
An aerobatic airplane pilot experiences
weightlessness as she passes over the top of
a loop-the-loop maneuver.
The acceleration of gravity is 9.8 m/s^2
If her speed is 280 m/s at this time, find the
radius of the loop.
Answer in units of km.
Answers
For weightless object, gravity is equal to centripetal acceleration. The radius of the loop is calculated as 8 km.
What is centripetal acceleration?The property of the motion of an object traversing a circular path is known as centripetal acceleration. Any object that is moving in circle and has an acceleration vector pointed towards center of that circle is Centripetal acceleration.
As Centripetal Acceleration formula is;
a = v²/r
Given, V- velocity = 280 m/s
And we know that for weightless object,
Gravity = centripetal acceleration
So, a = g
given, g =9.8 m/s²
So,9.8 = 280²/r
r= 8000 m
Radius of the loop = 8 km
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(c) Another spring has a spring constant of 250 N/m.
Calculate the work done in stretching the spring by 0.30 m.
State the unit.
Use the equation
E = 12 x K x x2
Answers
HURRY PLS IM IN NEED. Question 14 of 16
Which chemical equation represents a synthesis reaction?
O A. 2Na+ MgCl2 - 2NaCl + Mg
B. C+02 - CO2
C. H2CO3 - H2O + CO2
OD. HCI + LiOH
LiCl + H20
Answers
Answer:
B: C + O2 = CO2
Explanation:
In Chemistry,a synthesis reaction is one that occurs when two or more reactants combine in such a manner that they form a single product.
Looking at the options, the only one where 2 reactants combine to form a single product is option C where Carbon reacts with Oxygen to form carbon (IV) oxide.