1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
svet-max [94.6K]
2 years ago
14

A sound wave passes from air into water and then into steel. With each change in medium, what happens to the speed of the wave?.

Physics
1 answer:
Crank2 years ago
5 0

Answer:

Explanation:

You need to consider the index of refraction.

index of refraction of air: 1.00

index of refraction of water: 1.33

Index of refraction of steel: 2.75681

If the sound wave passed from air into water, it passes from a lower index to a higher index of refraction.

As the wave travels into the more dense medium (higher n), it slows down. Therefore from air to water (lower to higher) it slows down, and from water to steel (n of steel is higher that n of water) therefore it slows down even more.

You might be interested in
A racing car can complete an 800 m long lap in 14 s. What is the speed of the<br> car?
nasty-shy [4]

Answer:

57.1 m/s

Explanation:

Speed = Distance/Time

Speed = 800/14

Speed = 57.1 m/s (3sf)

7 0
3 years ago
Newton’s second law relates an object’s acceleration to its mass and the net force acting on it. Does newton’s second law apply
alexgriva [62]

No, newton’s second law does not apply to a situation in which there is no net force.

<h3>What is force?</h3>

A force is a push or pull upon an object which stops or tends to stop the object and move or tends to move an object.

No, newton’s second law apply to a situation in which there is no net force because force compels the object to move in the direction in which force is applied so we can conclude that force is compulsory to move an object.

Learn more about force here: brainly.com/question/12970081

3 0
3 years ago
The power of a machine mesures
strojnjashka [21]

A power meter is a device fitted to a bike that measures the power output of the rider.

Most commonly, power meters use strain gauges that deflect slightly when a force is applied. By measuring this torque and combining it with angular velocity, power (measured in watts) can be calculated.

7 0
3 years ago
An antiproton is identical to a proton except it has the opposite charge, −e. To study antiprotons, they must be confined in a
Zigmanuir [339]

Answer:

Explanation:

We know that, the force responsible for circulating in circular path is the centripetal force given by the force on charged particle due to magnetic field.

Here the charge is antiproton is

p = -1.6 * 10⁻¹⁹C

the speed of proton is given by 1.5 * 10 ⁴ m/s

the magnetic field is B = 4.5 * 10⁻³T

we have force due to magnetic field is equal to centripetal force

Bqv = mv² / r

Bq = mv / r

r = \frac{mv}{Bq} \\\\r=\frac{mv}{Bq} \\\\r=\frac{1.67 \times 10^-^2^7\times 1.5 \times 10^4}{4.5 \times 10^-^3\times 11.6\times 10^-^1^9} \\\\r=347.9\times 10^-^4\\\\r=3.479cm

The diameter d of the vacuum chamber have to allow these antiprotons to circulate without touching the walls is

d = 2r

d = 2 * 3.479

d = 6.958

d ≅ 7cm

7 0
3 years ago
A 4.0-kilogram block, initially at rest, is acted upon by an 8.0 newtons force for 10 seconds. How far, in meters, will the mass
Shtirlitz [24]

Answer:

4

Explanation:

5 0
3 years ago
Other questions:
  • A charge of -6.50 nC is spread uniformly over the surface of one face of a nonconducting disk of radius 1.25 cm.(a) Find the mag
    6·1 answer
  • If an engine operates on an input temperature of 800k and an exhaust temperature of 600k, calculate the efficiency of the engine
    14·1 answer
  • The main purpose of a service panel in a house is to A. keep the meter working correctly. B. connect the service drop to the hou
    5·2 answers
  • An old-fashioned LP record rotates at 33 1/3 RPM
    13·1 answer
  • A satellite orbits a planet of unknown mass in a circular orbit of radius 2.3 x 104 km. The gravitational force on the satellite
    12·1 answer
  • 4. What is malleability?
    13·2 answers
  • A rear window defroster consists of a long, flat wire bonded to the inside surface of the window. When current passes through th
    7·1 answer
  • Which of the following most represents, for everyday purposes, a noninertial frame of reference?
    13·1 answer
  • PLZ SOMEONEE HELPP I’LL MARK BRANLIESTTTT
    10·1 answer
  • Please answer help me
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!