Answer:
The frequency, 'f', of a wave is given by the speed, 'v' of the wave and the wavelength, λ, of the wave
f = v/λ
The frequency, 'f', of a wave is also given by the inverse of the period, 'T', of the wave which is the time it takes the wave to complete an oscillation or a cycle
f 1/T
Therefore, the variables to be known to determine the frequency of a wave includes either, the velocity and the wavelength of the wave or the period of oscillation (the wave cycle) of the wave
Explanation:
Ill give brainliest! 1. Which item below describes a quick change to
Earth's landscape?
A. a stone becoming smooth
B. dirt moving down a steep hill
C. flat land becoming a canyon
D. a glacier flattening the land below it
Answer:
hmmmmm
Explanation:
I am gonna say D.
if I am right plz give me a brainliest
1.
If a force of 40N is applied for 0.2 sec
to change the momentum of a
volleyball, what is the impulse?
Answer:
J = 8 kg-s
Explanation:
Given that,
Force, F = 40 N
Time, t = 0.2 s
We need to find the impulse. We know that,
Impulse, J = F×t
So,
J = 40 × 0.2
J = 8 kg-s
So, the impulse is 8 kg-s.
Why does our sun appear larger than any other star in our galaxy
PLS HELP & use your own words thanks
Answer:
The closer and bigger the star, the larger the star appears.
Explanation:
Since the sun is closer to us it shows up way larger than other stars in our galaxy.
Have a great day.
Answer:
It is the closest star to us. other bigger stars may seem small, but that is because they are far away. The more closer an object is, the smaller it seems to be.
Explanation:
Hope this helps!
in each of the following divide the second number by the first number and find the quotient:3/4,-3/8
Answer:
[tex]\dfrac{-1}{2}[/tex]
Explanation:
We need to divide the second number by the first number and the numbers are 3/4,-3/8.
First number = 3/4
Second number = -3/8
Dividing the second number by the first number.
So,
[tex]\dfrac{\dfrac{-3}{8}}{\dfrac{3}{4}}[/tex]
We know that,
[tex]\dfrac{\dfrac{a}{b}}{\dfrac{c}{d}}=\dfrac{a}{b}\times \dfrac{d}{c}[/tex]
So,
[tex]\dfrac{\dfrac{-3}{8}}{\dfrac{3}{4}}=\dfrac{-3}{8}\times \dfrac{4}{3}\\\\=\dfrac{-1}{2}[/tex]
So, the answer is (-1/2)
Using your strategy to overcome your obstacle.
Finally, now that you have both your obstacle and your success strategy in mind, take some time to write how you would actually use this strategy to help you overcome your obstacle. Be specific! The more specific you are, the more likely you will be to actually implement this success strategy. Write how you would use this strategy in the box below:
I would use this strategy in the following ways:
Observing the resources around me and finding ways to cope with the situation.Observing my environment or what is there around me that can help me Asking for help from othersThinking outside the boxWhat is strategy?Strategy is described as a general plan to achieve one or more long-term or overall goals under conditions of uncertainty.
We have three levels of strategy and they include:
Corporate level strategyBusiness unit level strategyMarket level strategyBy Observing my environment or what is there around me that can help me, it will help me overcome any obstacle that may come my way.
Learn more about levels of strategy at:
https://brainly.com/question/24845876
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What is the direction of the magnetic force on a positive charge if:
1. V= downward; B= out of the page
2. V=upward; B=right
3. V=right; B=into the page
4. V=into the page; B=upward
5. V=out of the page; B=left
Explanation:
1) left ⬅️
2) into the page
3) upward ⬆️
4) right ➡️
5) downward ⬇️
What happens when waves slow down and change direction?
Answer:
Refraction
Explanation:
Refraction is the change in direction of a wave as it slows down. ... Tsunamis also refract around land masses
distinguish between speed and velocity
Speed has no direction.
Velocity has one.
Water raises a boat once every 3.0 seconds. What is the frequency (f) of the waves passing the boat?
3.0 Hz
0.33 Hz
0.1 Hz
334 Hz
Answer:
I think its A
Explanation:
if its every 3 seconds wouldnt it be 3.0 Hz
Look up how much power a typical light bulb uses/produces. Then look up how much power a typical microwave uses/produces. How do these appliances compare to your physical activities?
The current drawn by a microwave is greater than the amount of current used by an electric bulb, hence the microwave consumes more power.
Energy dissipated by electrical applianceThe amount of energy dissipated by an electrical appliance is the calculated using the following formulas;
P = I²R
where;
P is powerI is currentR is resistanceThe current drawn by a microwave is greater than the amount of current used by an electric bulb, hence the microwave consumes more power.
Learn more about power here: https://brainly.com/question/13881533
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Series problem
What type of circuit is this?
What does the circle and the v represent?
When a charge moves between
two points that have a potential
difference of +12.0 V, its electric
potential energy increases by
0.418 J. What is the amount
of the charge?
Include the correct sign, + or -
(Unit = C)
Answer:
+ 0.07 C
Explanation:
From the question given above, the following data were obtained:
Potential difference (V) = 12 V
Energy (E) = 0.418 J
Charge (Q) =?
The energy (E) , potential difference (V) and charge (Q) are related by the following equation:
E = ½QV
With the above formula, we can obtain the charge as follow:
Potential difference (V) = 12 V
Energy (E) = 0.418 J
Charge (Q) =?
E = ½QV
0.418 = ½ × Q × 12
0.418 = Q × 6
Divide both side by 6
Q = 0.418 / 6
Q = + 0.07 C
Answer:
.0348
Explanation:
right on Acellus
Please I need help in this now
Answer:
a
Explanation:
worng worng
: where are you likely to find a cooling plant located in the duckwork? A. single family home B. A large apartment C. large factory D. A medium sized offices
Answer:
Option C
Explanation:
In a large sized factory, it is essential to create cooling system based on duct work because it can then be able to regulate cooling of any section of the factory from one place. Also, ductwork cooling is preferred in large spaces such as big offices building, towers, factories etc.
Hence, option C is correct
A day on a distant planet observed orbiting a nearby star is 21.5 hr. Also, a year on the planet lasts 69.3 Earth days. In other words, for the purposes of unit conversion, there are 24 hr in a day, 60 min in an hour, and 60 s in a minute, as it would for astronomers on Earth observing the planet. Calculate the average angular speed of the planet about its own axis of rotation in radians per second, with the second as measured on Earth. what is the speed of rotation? Calculate the average angular speed of the planet as it travels around its neighboring star, with the second as measured on Earth. what is the speed of orbit?
Answer:
Part A
The angular speed of rotation of the plane is 8.11781 × 10⁻⁵ rad/s
Part B
The angular speed of orbit of the planet is 1.04938 × 10⁻⁶ rad/s
Explanation:
The parameters of the planet are;
The duration of a day on the distant planet = 21.5 hr.
The duration of a year on the distant planet = 69.3 Earth days
Part A
The duration of a day = The time to make one complete revolution of 2·π radians
∴ The average angular speed about its axis, [tex]\omega_{rotation}[/tex] = Angle turned/Time
∴ [tex]\omega_{rotation}[/tex] = 2·π/(21.5 × 60 × 60) s ≈ 8.11781 × 10⁻⁵ rad/s
The average angular speed of the planet about its own axis, [tex]\omega_{rotation}[/tex] = 8.11781 × 10⁻⁵ rad/s
The angular speed of rotation of the plane [tex]\omega_{rotation}[/tex] = 8.11781 × 10⁻⁵ rad/s
Part B
The time it takes the planet to revolve round the neighboring star once = 69.3 Earth days
Therefore, the average angular speed of the planet around its neighboring star, [tex]\omega _{Star}[/tex], is given as follows;
[tex]\omega _{Orbit}[/tex] = 2·π/((69.3 × 24 × 60 × 60) s) = 1.04938 × 10⁻⁶ rad/s
The average angular speed of orbit, [tex]\omega _{Orbit}[/tex] = 1.04938 × 10⁻⁶ rad/s
The angular speed of orbit of the planet, [tex]\omega _{Orbit}[/tex] = 1.04938 × 10⁻⁶ rad/s.
Read the map key. Predict which location would expect to have the most extremes in average annual temperatures.
A.
B.
C.
D.
Answer:
D is the answer
Explanation:
How does a resistor affect an electrical circuit?
Answer:
D
Explanation:
Answer:
D.
It reduces the rate at which electrons flow.
can someone awnser this
Answer:
The force of gravity exerts a downward force. The floor exerts an upward force. Since these two forces are of equal magnitude and in opposite directions, they balance each other.
anyone know the answer ?
Answer:
a,c,d I thought these are the true statements about these graph
What is velocity ratio? It is impossible to get a perfect machine in practical life, why?
Explanation:
VELOCITY RATIO :- The ratio of a distance through which any part of a machine moves to that which the driving part moves during the same time.Identifying Obstacles
Since the purpose of these strategies is to help overcome obstacles and set-backs in your exercise routine, take a minute and think about the most obvious obstacle you have. If you do not have any obstacles at the present time, think about a potential obstacle to your exercise that could occur.
Answer:
Thx!
Explanation:
A 12 V battery is connected to a circuit with a 4 resistor. What is the current through the resistor?
О ЗА
8A
16 A
O 48 A
4)What is the mass of an object weighing
3,000N?
Answer:
Explanation:
306.12 Kg,
Answer:
The mass of an object weighing 3000N is 300kg
Explanation:
Here,
Weight (W) = 3000N is given
So,
we will use
W = mg
where,
m = mass of the body
g = acceleration due to gravity
Now,
W = mg
3000 = m × 10
m = 3000 ÷ 10
m = 300kg
Thus, The mass of an object weighing 3000N is 300kg
-TheUnknownScientist
What is the force between a 3 C charge and a 4 C charge separated by a distance of 2 meter
Answer:
[tex]fr = \frac{9 \times 10 {}^{9} \times 3 \times 4}{2 {}^{2} } \\ fr = 27 \times 10 {}^{9} n[/tex]
ANSWER FOR BRAINLEST AND 25 POINTS what is the word for this definition
definition = Unit of energy the amount of heat needed to raise one gram of water one degree Celsius
word?
a horizontal force of 25 newtons eastward causes a 10 kg box to have a displacement of 5m eastward. The total work done by the 25 Newton force is?
Answer:
125 J
Explanation:
Work done = force * distance
work = 25 * 5
work = 125 J
Suppose that the ultrasound source placed on the mother's abdomen produces sound at a frequency 2 MHz (a megahertz is 10^610 6 Hz). Sound travels through tissue at roughly the same speed as in water (v\approx 1500v≈1500m/s). Find the maximum change in frequency between the sound that is emitted by the device and the sound that is observed at the wall of the baby's heart. Treat the heart wall as a moving observer. Hint: you will need to use your answer from part (a). Give your answer as a positive number in Hz.
Answer:
the maximum frequency observed is 2.0044 10⁶ Hz
Explanation:
This is a Doppler effect exercise. Where the emitter is still and the receiver is mobile, therefore the expression that describes the process is
f ’= [tex]f_o \ ( \frac{v \pm v_o}{v} )[/tex]
the + sign is used when the observer approaches the source
typical speeds of a baby's heart stop are around 200 m / min
let's reduce to SI units
v₀ = 200 m / min (1 min / 60 s) = 3.33 m / s
let's calculate
f ’= 2 10⁶ ([tex]\frac{1500 \ \pm 3.33}{1500}[/tex])
f ’= 2.0044 10⁶ Hz
f ’= 1,9956 10⁶ Hz
therefore the maximum frequency observed is 2.0044 10⁶ Hz
AWARDING BRAINLIEST (～￣▽￣)～
The thread around a screw is a lever.
Please select the best answer from the choices provided
T
F
Titan Tommy and the Test Tubes at a nightclub this weekend. The lead instrumentalist uses a test tube (closed-end air column) with a 17.2 cm air column. The speed of sound in the test tube is 340 m/sec. Find the frequency of the first harmonic played by this instrument.
Hello , it' s 5 but i am not sure Explanation:
A mosquito's wings create a buzzing noise with a frequency of 1050 Hz. If you hear a mosquito buzzing with a frequency of 1034 Hz, at what velocity is the mosquito travelling with respect to you (in m/s)?
NO LINKS
Answer:
5.26 m/s
Explanation:
Given that,
The frequency of mosquito's wings, f = 1050 Hz
The observed frequency = 1034 Hz
We need to find the velocity of the mosquito travelling with respect to you. We have a formula to find it such that,
[tex]v=\dfrac{v}{\dfrac{f'}{f}}-v[/tex]
Where
v is the speed of sound
So,
[tex]v=\dfrac{340}{\dfrac{1034}{1050}}-340\\\\v=5.26\ m/s[/tex]
So, the required velocity is equal to 5.26 m/s/