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drek231 [11]
3 years ago
14

PLEASE HELP ASAP I'LL GIVE BRAINLY!!

Physics
1 answer:
andrew-mc [135]3 years ago
5 0

Answer:   b or c

Explanation:  on khan academy

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A sinusoidal sound wave moves through a medium and is described by the displacement wave function
ZanzabumX [31]

By applying the wave equation we know that the maximum speed of the element's oscillatory motion is 1716 micrometer / s.

We need to know about wave equations to solve this problem. The displacement of the wave on the y-axis can be explained by the wave equation

y = A cos (kx - ωt)

where y is y-axis displacement, A is amplitude, k is wave number, x is x-axis displacement, ω is angular speed and t is time.

the wavenumber and angular speed of the wave equation can be determined respectively by

k = 2π / λ

ω = 2πf

where k is the wavenumber, λ is wavelength and f is frequency.

From the question above, we know that:

y = 2.00cos (15.7x - 858t)

v = dy / dt

v = d(2.00cos (15.7x - 858t)) / dt

v = -858 x (-2.00sin(15.7x - 858t))

v = 1716 sin(15.7x - 858t) micrometer/s

maximum velocity can be reached when (sinθ = 1), hence

v = 1716 sin(15.7x - 858t)

v = 1716 x 1

v = 1716 micrometer / s

For more on wave equation on: brainly.com/question/25699025

#SPJ

4 0
2 years ago
Does distance play a role in the magnetic field ?
OLga [1]
Magnetic force obeys an inverse square law with distance. ... If the distance between two magnets is halved the magnetic force between them will increase to four times the initial value.
8 0
3 years ago
Analyze the effects on a passenger riding in a car traveling at
Mamont248 [21]

Without:

  • The passenger will get seriously injured
  • Colliding with the windshield at 50km/h
  • Could result in death

With safety:

  • The seatbelt holds tge passengers body back so they dont collide with anything
  • Their head is cushioned by the airbag
  • The passenger might get minor injuries but nothing serious will happen
5 0
2 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
aleksklad [387]

Answer:

Option D

Explanation:

Resistors are said to be connected in “Series”, when they are daisy chained together in a single line. Since all the current flowing through the first resistor has no other way to go it must also pass through the second resistor and the third and so on. Then, resistors in series have a Common Current flowing through them as the current that flows through one resistor must also flow through the others as it can only take one path.

Total Resistance = R₁ + R₂ +R₃ +R₄ ohm

Note then that the total or equivalent resistance, R has the same effect on the circuit as the original combination of resistors as it is the algebraic sum of the individual resistances.

Total resistance R = 3 + 3 + 3 +3

                             = 12 ohm

6 0
3 years ago
3. How are fossil fuels used to generate electrical energy?
Katena32 [7]
Um dia eu vou para os Estados Unidos aí nós vamos ser amigos?
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3 years ago
Read 2 more answers
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