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?
А
It increases
B
It decreases. C
It increases then decreases
D
It decreases then increases

Answers

Answer 1

Answer:

A

Explanation:

if its wronge im so sorry


Related Questions

When you blow across the top of a
soda bottle, it acts like a closed
pipe. If the inside of the bottle is
0.150 m long, what is the
fundamental frequency you hear?
(Speed of sound = 343 m/s)
(Unit = Hz)

Answers

Answer:

572

Explanation:

Got it right on Acellus, you take the velocity and divide it by 4 times the length.

Tarzan is swinging back and forth
on a 6.25 m long vine. What is the
period of his oscillation?
(Unit = s)

Answers

Answer:

5.02s

Explanation:

I got it right in acellus :)

The period of the oscillation when Tarzan is swinging back and forth so it should be 5.01 seconds.

Calculation of the period:

Since

Length L = 6.25 m

g = 9.8 m/s²

So,

T = 2π√(L/g)

T = 2π√(6.25 / 9.8)

T = 5.01 sec

Hence, The period of the oscillation when Tarzan is swinging back and forth so it should be 5.01 seconds.

Learn more about oscillation here: https://brainly.com/question/26044136

3-the-lamps are connected in series. The first-lamp-has-a-current-of2-A and
a resistance of 4 Ohms. The second-lamp has a voltage of 10V. The third-lamp has a
voltage of 6V. Find in this diagram the total voltage, the current for all the lamps, the
total-resistance.

Answers

It’s gonna be 13v is your answer

PLS HELP (50 POINTS) I WILL ALSO MARK BRAINLIEST!!!

Answers

Biceps
Triceps
Traps
Delts
Lats
Pecs
Obliques
Glutes
Quads
Gastro

what force is required to accelerate to 10 kg object to 5.9 m/s/s?

Answers

Force required to accelerate 10 kg object to 5.9 m/s/s ?

Mass = 10 kg

Acceleration = 5.9 m/s^2

Force = Mass * Acceleration

Force = 10 kg * 5.9 m/s^2

Force = 59 kg m /s^2 = 59 N

PLS HURRY THIS IS DUE IN 5 mins
(a) Waves P and Q have the same
but wave P has twice the
of wave Q.
(b) Waves Q and R have the same
but wave R has twice the
of wave Q.
(c) Wave
shows a steady frequency but changing amplitude.
(d) Wave
shows steady amplitude but a changing frequency
Tel Waves
and
have a lowamplitude and a steadvafrecuency

Answers

Answer:

(a) Waves P and Q have the same  wavelength but wave P has twice the  amplitude of wave Q.

(b) Waves Q and R have the same amplitude  but wave R has twice the wavelength  of wave Q.

(c) Wave  T shows a steady frequency but changing amplitude.

(d) Wave  S shows steady amplitude but a changing frequency.

e) Waves  Q and R have a low amplitude and a steady  frequency.

how does the sun rise and set
a.earth orbit around the sun
b.The sun is center of solar system
c.earth rotates on it tilted axis and orbit around the sun at the same time​

Answers

Answer:

c. earth rotates on it tilted axis and orbit around the sun at the same time​

Explanation:

Earth rotation can be defined as the amount of time taken by planet earth to complete its spinning movement on its axis.

This ultimately implies that, the rotation of earth refers to the time taken by earth to rotate once on its axis. One spinning movement of the earth on its axis takes approximately 24 hours to complete with respect to the sun. Thus, this makes us to experience day and night (sun rise and sun set) due to the rotation of planet about its axis.

Hence, the sun rise and set because the earth rotates on it tilted axis and orbit around the sun at the same time​

The magnitude of a force is:

A) How fast an object moves when it is pushed

B) How far an object moves when it is pushed

C) how hard an object is pushed or pulled

D) how long it takes to push or pull an object

Answers

Answer:

c

Explanation:

force is how hard it is pulled or pushed

Comets are typically ?

a.) chunks of ice that begin to vaporize if they pass close to the sun.

b.) slushy mixtures of liquid and ice.

c.) gaseous bodies from which some of the gas is pushed out by the sun to form a long tail.

d.) chunks of rock that are generally a few tens of kilometers in diameter.

??? i appreciate those that help!!! <3

p.s. this subject is astronomy it just doesnt have it as a subject option nor a science option....

Answers

Answer:

the answer is a) chunks of ice that begin to vaporized if they pass close to the sun

what force on a 936kg elevator that is falling freely at 9.8 m/s^2​

Answers

Answer:

9172.8 N

Explanation:

F = ma

F = (936 kg)(9.8 m/s^2)

F = 9172.8 N

What type of friction is it when two students are pushing a box that is at rest

Answers

The type of friction this is are Kinetic friction!

A child pulls on wagon with force of 20 N if the wagon models a total of 10 M in four seconds what is the average power generated by the child in watts

Answers

Answer:

[tex]power = \frac{(force \times distance)}{(time)} \\ power = \frac{(20 \times 10)}{4} \\ power = \frac{200}{4} \\ power = 50 \: watts[/tex]

Some help please :)
At which stage in the life cycle of a star is helium combined to form elements lithium through iron? Explain.

Answers

Answer:

Explanation:

During the formation of the universe some 14 billion years ago in the so-called ‘Big Bang’, only the lightest elements were formed – hydrogen and helium along with trace amounts of lithium and beryllium. As the cloud of cosmic dust and gases from the Big Bang cooled, stars formed, and these then grouped together to form galaxies.

Number of protons are equal to the number of electrons

Answers

Explanation:

the no of proton of an element is found in the inner part of the orbital of an element along with the neutron ,also knowing that this two add up to give mass no an element

where neutron+proton=mass no=nucleon no,where proton= electron, unless it carries charges call ion


The Law of Octaves is a relationship that can be observed when
elements are ordered by atomic mass. Newlands observed that every
____ element exhibited similar properties.

Answers

Answer:

8 elements

Explanation:

It’s right ✌

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