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
Kazeer [188]
3 years ago
14

Two children use a homemade "telephone" consisting of two paper cups attached by an aluminum wire which is 8.4 m long. Determine

the time for the "sound" to travel from one cup to the other. How does this compare with the time for sound to travel the same distance through air? (speed of sound in aluminum is 5100 m/s, in air is 343 m/s)
Physics
1 answer:
lina2011 [118]3 years ago
8 0

Answer:

Explanation:

Distance over wire of aluminium d = 8.4 m

velocity of sound in aluminium = 5100 m /s

time required = distance / velocity

= 8.4 / 5100 s

= .001647 s

velocity of sound in air = 343 m /s

time required = distance / velocity

= 8.4 / 343 s

= .024489 s

Difference of time

= .024489 - .001647

= .022842 s

= 22.842 ms .

You might be interested in
Suppose you lived in the crater Copernicus on the side of the Moon facing Earth.
Wittaler [7]

Answer and Explanation:

In case, I lived in the Crater Copernicus on Moon's side facing the Earth then:

  • On moon, as it orbits the Earth, it takes 29 and a half days to complete one cycle of sunrise and sunset. So, the would rise once in 29 and a half day.
  • The moon orbits the Earth in such a way that the its same side faces the Earth always which concludes that the Earth is overhead every time resulting in no Earth rise or Earth set on Moon.
  • Due to the thin atmosphere, it can't impart any specific color to the sky on the moon as a result of which the moon's sky is always black and hence, stars can be seen every time.

5 0
3 years ago
Hahahahaha how do you give ppl brainliest
sergeinik [125]

Answer:

When you ask a question, only two people can answer. When there are two answers, a little crown should appear at the bottom right hand corner. All you have to do is click the crown and it gives Brainliest. But you can only give it to one person per question

Explanation:

8 0
3 years ago
Assume a satellite shines an unpolarized light on a telescope. The intensity of the light as it reaches the telescope is 1.1*10-
n200080 [17]

Answer:

4.125\times 10^{-11}\ W/m^2

Explanation:

I_0 = Intensity of unpolarized light = 1.1\times 10^{-10}\ W/m^2

\theta = Angle of the filter = 30^{\circ}

Intensity of light is given by

I=\dfrac{I_0}{2}cos^2\theta\\\Rightarrow I=\dfrac{1.1\times 10^{-10}}{2}cos^230\\\Rightarrow I=4.125\times 10^{-11}\ W/m^2

The intensity of light detected by the camera is 4.125\times 10^{-11}\ W/m^2

7 0
3 years ago
Sound will travel slowest through which medium?
xxMikexx [17]
Ice at -25
Hope this helps
May God bless you and your family
8 0
3 years ago
The density of lead is 11.3 g/cm3. what mass of lead is required to make a 1.00 cm3 fishing sinker?
Elza [17]

The mass of lead required to make a 1.00 cm3 fishing sinker is 11.3g.

What is mass?

Mass is a metric used in physics to express inertia, a fundamental characteristic of all matter. A mass of matter's resistance to altering its direction or speed in response to the application of a force is what it essentially is. The change that an applied force produces is smaller the more mass a body has.

Given :

Density of lead = 11.3 g/cm3

Volume of  sinker  =  1.00 cm3

One of a substance's attributes is density, which is calculated by dividing the mass by the volume. Mathematically:

Density : Mass / volume

therefore after putting the values,

mass= 11.3g

To learn more about density click on the link below:

brainly.com/question/18939565

#SPJ4

8 0
1 year ago
Other questions:
  • Two wheels, each with the same radius R and the same total mass M, are rotating about their fixed axles. Wheel A is a hoop with
    12·1 answer
  • T or F science is a continually evolving discipline
    15·2 answers
  • A wooden box is pushed with 100 N towards North
    8·1 answer
  • Is the
    15·1 answer
  • How to solve for average speed
    5·1 answer
  • How do tornadoes form from thunderstorms when ____.
    7·1 answer
  • A 12 cm radius air duct is used to replenish the air of a room 9.2 m x 5.5 m x 4.5 m every 10 min. how fast does the air flow in
    13·1 answer
  • The front end of the car is crushing and absorbing ___ which slows down the rest of the car
    9·1 answer
  • How can you reduce the percentage uncertainty in measurements that you make?​
    6·1 answer
  • Three of the forces in nature attract particles together, with varying strengths, to build the universe. Which is the only one t
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!