The velocity of the wave having a frequency of 458 Hz and a wavelength of 0.74 m is 338.92 m/s
Velocity of a waveThe velocity of a wave is related to its frequency and wavelength according to the following equation:
Velocity (v) = wavelength (λ) × frequency (f)
v = λf
How to determine the velocity of the waveFrequency (f) = 458 HzWavelength (λ) = 0.74 mVelocity (v) =?v = λf
v = 0.74 × 458
v = 338.92 m/s
Thus, the velocity of the wave is 338.92 m/s
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During what moon phase is a lunar eclipse possible.
During a race, a horse's speed increases from 65 m/s to 73 m/s during the last 5.0 seconds of that race What was the rate of acceleration during this time?
Answer:
1.6m/s²
Explanation:
It was difficult to type the answer here
During a race, a horse's speed increases from 65 m/s to 73 m/s during the last 5.0 seconds of that race, 1.60 m/s² was the rate of acceleration during this time.
What do you mean by an acceleration ?The rate of change of velocity is defined as acceleration. Acceleration usually indicates that the speed is changing, but this is not always the case. When an object moves in a circular path at a constant speed, it is still accelerating because its velocity direction changes.
Acceleration occurs when the speed of an object increases or decreases, or when it changes direction. Acceleration, like velocity, has two types: average and instantaneous.
a = v - v₀ / t
Then, a = 73 × 65 / 5
a = 1.60 m/s²
Thus, 1.60 m/s² was the rate of acceleration during this time.
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Water flowing from a waterfall before it hits the pond below?
Answer:
Kinetic Energy
Explanation:
Ang prinsipyo ay nagsasaad na ang enerhiya ay hindi maaaring malikha o masira, ngunit maaari lamang ma-convert mula sa isang anyo patungo sa isa pa. Ang tubig sa tuktok ng napakataas na talon ay nagtataglay ng gravitational potential energy. Habang bumabagsak ang tubig, ang enerhiya na ito ay na-convert sa kinetic energy, na nagreresulta sa isang daloy sa isang mataas na bilis.
Two bulldozers are pushing on a large tree trunk as shown. (last photo)
Click on the diagram until it correctly represents the expected movement and force.
The tree will fall in the south eastern side of the area due to two bulldozer.
Direction of tree fallingThe tree falls in the sloppy direction due to both bulldozer which apply force from two directions. One bulldozer apply force on the tree from western side whereas the other bulldozer apply force on the tree from north side so that's why we can say that the tree will fall in the south eastern side of the area.
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Answer:
Maybe it; the 4th image
Explanation:
The upper bulldozer have more force than the lower bulldozer. Therefore making the down force longer than the right force
can someone please answer this ill give you brainliest and your getting 100 points.
Answer: i think its b
Explanation:
Answer:
All of the above
Explanation:
Extraction of fuel will affect fuel price so there will be social and economic costs. Extraction from the environment will have environment cost. It is also a political decision with political cost.
So the answer is all of the above.
A bus wheel has a diameter of 0.80 m and an angular velocity of 20 rad/s. What is the linear velocity of the wheel?
The linear velocity of the wheel is 16 m/s.
What is linear velocity?Linear velocity is the rate of change of displacement with regard to time when the object is moving in a straight line
To calculate the linear velocity of the wheel, we use the formula below.
Formula:
v = ωr............. Equation 1Where:
v = Linear velocityω = Angular velocityr = Radius of the wheel.From the question,
Given:
ω = 20 rad/sr = 0.80 mSubstitute these values into equation 1
v = 20(0.8)v = 16 m/s.Hence, The linear velocity of the wheel is 16 m/s.
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Which of the following is NOT an example of good static flexibility?
A.
doing and holding a split
B.
running a mile in six minutes
C.
holding a ballet position for six minutes
D.
crossing your ankles behind your head
Answer:
running a mile in six minutes
Explanation:
Answer:
Not example is B: Running a mile in six minutes
At 40 degrees is 25g of NaNO3 saturated or unsaturated?
I think unsaturated
because -
At 55°C, a saturated solution would contain 120 g of solute, NaNO3. (Notice, this point is exactly on the solute's curve). If, for example we mixed in 140 g of NaNO3 instead of 110 g of solute at 55°C, we would create a SUPER saturated solution, because we would be at a point ABOVE the solute's solubility curve.
A police officer on a mountain bike is cruising at a speed of 3.50m/s, when he sees a wanted
criminal, standing on a corner, 75m ahead of him. If the police officer accelerates at a rate of
2.00m/s^2, how much time will he take to reach the corner?
Answer:
7 seconds
Explanation:
please see paper!
vf² = vo²+2ad
vf=vo+at
vf²=3.5²+2.2.75
vf²=312.25
vf=17.67 m/s
vf=vo+at
17.67 = 3.5 +2t
t=7.085 s
Based on fossil evidence, about how long ago did the
first single-celled life form appear on Earth?O 130 million years ago
O 1.5 billion years ago
O
2.5 billion years ago
O
4.1 billion years ago
Answer:
4.1 billion
Explanation:
Which of the following is not an example of an electromagnetic wave.
A. microwaves
B. sonar
C. visible light
D. ultraviolet
Answer:
microwaves
Explanation:
Among the following, the wave which is not an example of the electromagnetic wave is water wave. Thus, the correct option is B. Explanation: Electromagnetic waves are produced as a result of the vibrations between the electric and magnetic fields. Examples of electromagnetic waves are X-ray, lightwave, radio wave, microwave, etc.
help me with this pls
Answer:
8000J,100J,20
Explanation:
Wi =E×SE =400N × 20cm =8000J
Wo=L×SL=20N×5.0 m=100J
MA =L/E =400N/20N =20
what is the difference between serious and parallel circuit
The right back player hits the ball over the net to start play. EIVERCS
___ ___ ___ ___ ___ ___ ___
2. The score is 15-15. EDECU
___ ___ ___ ___ ___
3. Stopping the game for a rest period. MIET TOU
___ ___ ___ ___ ___ ___ ___
4. The serving team fails to score. ODISTEU
___ ___ ___ ___ ___ ___ ___
5. Two out of three games. TCAMH
___ ___ ___ ___ ___
6. A high pass near the net for a player to spike it. ETS
___ ___ ___
7. A hard driven ball from above the net. PKEIS
___ ___ ___ ___ ___
8. Service lands in the opponent’s court without being touched. CAE
___ ___ ___
9. Clockwise movement of players following a side-out. OINTOTAR
___ ___ ___ ___ ___ ___ ___ ___
10. Scoring when a point is awarded on every serve regardless of which team is serving. ALYRL
The right back player hits the ball over the net to start play. EIVERCS
(((service)))
2. The score is 15-15. EDECU
(((deuce)))
3. Stopping the game for a rest period. MIET TOU
(((time out)))
4. The serving team fails to score. ODISTEU
(((outside)))
5. Two out of three games. TCAMH
(((match)))
6. A high pass near the net for a player to spike it. ETS
(((set)))
7. A hard driven ball from above the net. PKEIS
(((spike)))
8. Service lands in the opponent’s court without being touched. CAE
(((ace)))
9. Clockwise movement of players following a side-out. OINTOTAR
(((rotation)))
10. Scoring when a point is awarded on every serve regardless of which team is serving. ALYRL
(((rally)))
The right back player hits the ball over the net to start play. - SERVE
S E R V E _ _ _
The score is 15-15. - DEUCE
D E U C E _
Stopping the game for a rest period. - TIME OUT
T I M E _ O U T
The serving team fails to score. - SIDEOUT
S I D E O U T _
Two out of three games. - MATCH
M A T C H _
A high pass near the net for a player to spike it. - SET
S E T _
A hard driven ball from above the net. - SPIKE
S P I K E _ _
Service lands in the opponent’s court without being touched. - ACE
A C E _
Clockwise movement of players following a side-out. - ROTATION
R O T A T I O N _
Scoring when a point is awarded on every serve regardless of which team is serving. - RALLY
What is game ?A game is a systematic kind of play that is often done for enjoyment or amusement, however it may also be used as a teaching tool. A lot of games are also regarded as works of art. Sometimes people play games only for fun, while other times they play for recognition or reward.
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9) How much kinetic energy does a person have riding a bike is going 12 m/s? Let's assume that the
bike and person have a mass of 70kg.
A)
B)
C)
Kinetic Energy = [tex]\frac{1}{2} m*v^2[/tex]
m: mass -->70 kgv: velocity --> 12 m/sKinetic energy = [tex]\frac{1}{2}*70*(12^{2} ) = 5040[/tex] Joules
Hope that helps!
Consider a resistor (R=1000 kΩ) and a capacitor (C=1μF) connected in series. This configuration is connected in series to a battery with an emf of 10 V.
After the capacitor is charged to its maximum value, the capacitor and resistor are disconnected from the battery and from each other. Then they are connected in parallel, so that the capacitor discharges through the resistor. How long will it take for the voltage across the capacitor to drop to 2.50 V?
Answer:
The maximum pressure is 10 V from across condenser.The highest charge mostly on condenser.
Vc = 10 x 1mf
= 10 ^ - 5C
The time it takes for the condenser to be 5 V different.
Thus we have, 0.69 x 10 ^ - 3 seconds.
A 60w bulb has a higher resistance than a 100w bulb, since the power rating is given assuming that the bulb is connected to a 120v source by itself. If you connect a 60w bulb and a 100w bulb in series to an outlet, which will shine brighter?.
Voltage drop across any components in series is proportional to its resistance. 60W bulb has higher resistance than 100W bulb if both the bulbs were rated for same voltage. So higher voltage drop will be across a 60W bulb.
In parallel voltage drops will be same across both the bulbs but current through it will be inversely proportional to the resistance. So 100W bulb draws more current than 60W bulbs.
60W dissipates more energy than 100W bulbs when in series and 100W bulbs dissipates more energy when in parallel.
An arch carries the thrust of weight to its _____(1)______. With a _____(2)______, the horizontal part of the structure supports all the weight above it. A. (1) center; (2) post-and-bearing b. (1) base; (2) springing line c. (1) keystone; (2) groin vault d. (1) sides; (2) post-and-lintel Please select the best answer from the choices provided A B C D.
Option D is correct. An arch carries the thrust of weight to its sides with a post-and-lintel.
What is an arch?
An arch is indeed a vertical curving construction that covers an elevated space that may or may not sustain the load above it or the pressure gradient against it
In the case of a horizontally arched, such as an embankment dam. While arches and vaults are often confused, A vault is defined as an ongoing arch forming a roof.
Option D satisfies the fill-in blanks option.
Hence option D is correct. An arch carries the thrust of weight to its sides with a post-and-lintel.
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A baseball player uses a bat to hit a 0.145-kilogram stationary baseball with a force of 18,436 newtons. What is the force, in newtons, on the player's bat?
Answer:
18,436 newtons
Explanation:
hope it helps you
A Force of 940N does a Work of 3760 Joule in displacing a given object. Find the displacement.
Question :-
A Force of 940 N does a Work of 3760 J in Displacing a given object . Find the Displacement .Answer :-
Displacement is 4 meter .[tex] \rule {180pt} {2pt} [/tex]
Given :-
Force = 940 NewtonWork = 3760 JouleTo Find :-
Displacement = ?Solution :-
As per the provided information in the given question, Force is given 940 Newton . Work is given 3760 Joule . And, we have been asked to calculate the Displacement .
For calculating the Displacement , we will use the Formula :-
Displacement = Work / ForceTherefore , by Substituting the given values in the above Formula :-
⇒ Displacement = Work / Force
⇒ Displacement = 3769 / 940
⇒ Displacement = 4
Hence :-
Displacement = 4 meter .[tex] \underline {\rule {180pt} {4pt}} [/tex]
A sound wave has a frequency of 695 Hz in air
and a wavelength of 0.49 m.
What is the temperature of the air?
Relate the speed of sound in air to temperature in units of Kelvin, but answer in units
of Celsius.
Assume the velocity of sound at 0 ◦C is
332 m/s.
Answer in units of degC
This question involves the concepts of the speed of sound, frequency, and temperature.
The temperature of the air is "14.24 °C".
Temperature of AirFirst, we find the speed of sound at the given temperature:
v = fλ
where,
v = speed of sound = ?f = frequency = 695 Hzλ = wavelength = 0.49 mTherefore,
v = (695 Hz)(0.49 m)
v = 340.55 m/s
Now, the relationship between the speed of sound and temperature can be given by the following formula:
[tex]\frac{v}{v_o} = \sqrt{\frac{T}{273\ k}}\\\\T = (273\ k)(\frac{v}{v_o})^2\\\\[/tex]
where,
T = Temperature = ?v = speed of sound in air at given temperature = 340.55 m/sv₀ = speed of sound in air at 0°C = 332 m/sTherefore,
[tex]T = (273\ k)(\frac{340.55\ m/s}{332\ m/s})^2[/tex]
T = 287.24 k = (278.24 k -273) °C
T = 14.24 °C
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Refer to the following series circuit: + R R, = 17.2 V R, = 52 1:11 V = 15V R, 1 I Calculate the total power developed in the circuit. P= Choose... watts Choose... 15 120 98 Submit Answer Skip C Notes
Series connection
R=R1+R2=10+5=15[tex]\Omega[/tex]V=15VNow
[tex]\\ \rm\Rrightarrow P=\dfrac{V^2}{R}[/tex]
[tex]\\ \rm\Rrightarrow P=\dfrac{15^2}{15}[/tex]
[tex]\\ \rm\Rrightarrow P=15W[/tex]
What is the best definition of profit?
Answer:
Excess currency after a series of deals or fees.
Explanation:
Let's put profit in perspective by using an example. For example, let's say you spend 72 dollars to build a certain product, then you sell that same product to your friend for 116 dollars. It costed 72 dollars to build that product and you sold it for 116, after subtracting the costs for building the product the excess currency is what you would call profit. Profit is your overall goal when running a business, you want to sell a product and make profit from it.
Hope this helps.
profit is your gain on any problem,situation or opportunity given to you
Explain that sound is a longitudinal wave that has a frequency, wavelength, and speed.
An elongated drop of blood was found with a width of 4.33 mm and a length of 5.0
mm. At what angle did the blood drop hit the surface?
0°
30°
60°
90°
SinФ = w/l
SinФ = 4.33 / 5.0
Ф = arcsin 4.33/5.0
Ф = 59.99 degrees
Round to 60 degrees
What happens to the air in an air pump when being pumped into a tire? What happens to the air when allowed to escape from a tire?
Does everything in a black hole contain a singularity?
Answer:
All black holes contain singularities, however not all singularities involve black holes. A neutron star may be dense, matter the size of a pinhead can weigh as much as the earth, but there seems to be a mathematical cut-off point beyond which a black hole is formed.
differentiate between loadstone and bar magnet
Answer:
Explanation:
Permanent (Bar) Magnet. —-) Electromagnet
They are permanently magnetized. —-) These are temporarily magnetized.
What is the main difference between cardio and strength-training activities? A. Cardio activities increase your physical strength, while strength-training activities work your heart and lungs. B. Cardio activities work your heart and lungs, while strength-training activities strengthen your muscles. C. Cardio activities require short bursts of energy, while strength-training activities strengthen your body over long durations. D. Cardio activities improve your joints' range of motion, while strength-training activities work your heart and lungs.
Answer:
B: Cardio is really to improve your circulatory and etc while strength that's common sense
Explanation:
Answer:
B
Explanation:
shape of houses built in areas with hot climate and materials used
Answer:
Cement and sand will do
Explanation:
because without it you can't build
Answer:
Shape of houses built in areas with hot climate
Compact house forms, rather than sprawling, multi-wing designs work best in hot locales. Home designs with shaded porches, wrap around porches or plans with courtyards that create a shaded open area within the building are ideal.
How do you build a house in hot climates?
Place courtyards centrally to enhance cooling and ventilation. ...
Choose the right materials. ...
Use waterbodies and landscaping effectively. ...
Shade terraces and outdoor spaces. ...
Create sheltered, barrier-free spaces for air circulation. ...
Extend roofs to protect the walls and windows from direct heat.
Materials used building in areas with hot climate
The most common materials used for building walls in the warm-humid regions are stones, and earth-based bricks.
Concrete, bricks, and tile have a high thermal mass due to the large amount of heat energy needed to change their temperatures. This makes concrete an ideal building material for climates that are hot during the day but cooler at night.