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
Karolina [17]
3 years ago
11

The time for a sound wave to travel between two people is 0.80 s,

Physics
1 answer:
sasho [114]3 years ago
4 0

Answer:

Explanation:

Using the below formula

Speed of sound = ( distance between observers) *2/(total time taken)

Now putt the given values ,

time taken = 0.80 sec

distance = 256 m

hence

V of sound= 256*2/0.80

V of sound = 640 m/sec

You might be interested in
The Magnetic Dipole Moment of a Coil Problem A rectangular coil of dimensions 5.40 cm ✕ 8.50 cm consists of 25 turns of wire and
butalik [34]

Answer:

a

 \mu =  0.0023 \ A\cdot m^2

b

\tau  =    0.00080  \  N \cdot  m

Explanation:

From the question we are told that

  The dimensions of the  rectangular coil is 5.40 cm ✕ 8.50 cm  = 0.054 m X 0.085 m

   The  number of turns is  N  = 25 \ turns

   The current it  is carrying is  I = 20 \ mA  = 0.02 \  A

    The magnetic field is B = 0.350 \   T

Generally the magnitude of the magnetic dipole moment is mathematically represented as

       \mu = N  *  I *  A

Here  A  is the area which is mathematically represented as

     A =  0.054  * 0.085

=>  A =  0.00459 \  m^2

So  

     \mu = 25  * 0.02 *  0.00459

=>  \mu =  0.0023 \ A\cdot m^2

Generally the  magnitude of the torque acting on the loop is mathematically represented as

    \tau  =  \mu * B

=>\tau  =    0.0023  * 0.350

=>\tau  =    0.00080  \  N \cdot  m

8 0
2 years ago
what happens to the specific heat capacity of a material if it changes state? i.e. from solid to liquid
Zigmanuir [339]

Answer:

A solid substance at its melting point has less energy than the same mass of the substance when it is a liquid at the same temperature. ... This heat energy allows the change of state to happen, and the temperature remains constant during the process.

Explanation:

6 0
3 years ago
Which two conditions would result in the weakest electric force between objects?
Novay_Z [31]
The objects are far apart the weakest the result the two conditions
3 0
3 years ago
A hockey player swings her hockey stick and strikes a puck. According to Newtons 3rd law of motion which of the following is a r
Korvikt [17]

<u>Complete Question:</u>

A hockey player swings her hockey stick and strikes a puck. According to Newton’s third law of motion, which of the following is a reaction to the stick pushing on the puck?

A. the puck pushing on the stick .

B. the stick pushing on the player .

C. the player pushing on the stick .

D. the puck pushing on the player.

<u>Correct Option:</u>

According to Newton’s third law of motion the puck pushing on the stick is a reaction to the stick pushing on the puck.

<u>Option: A</u>

<u>Explanation:</u>

As when the hockey exert force on the puck (which is a flat ball basically used in ice hockey) then this action by hockey will receive equal and opposite reaction by puck. Thus when the stick is pushing on the this flat ball, then puck also push the stick. This is understood by newton's third law pf motion, where action and reaction forces are subject of discussion, displaying their is pair of forces applied among the interacting objects. This form is observed more practically in life and very frequent.

3 0
3 years ago
CAN AIR MAKE SHADOWS?
Tems11 [23]

Answer:

No because you cannot see air so therefore it cannot make shadows

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • The amount of water in reservoirs is often measured in acre-ft. one acre-ft is a volume that covers an area of one acre to a dep
    9·2 answers
  • Mikes car can accelerate from 0 mph to 40mph in 5 seconds what is the acceeration of his car in miles per hour per second
    6·2 answers
  • The international space station orbits the earth at a distance of 6,783 km from the center of the earth it travels at 7.66 km/s.
    10·1 answer
  • You are lying on a beach, your eyes 20cm above the sand. Just as the Sun sets, fully disappearing over the horizon, you immediat
    6·1 answer
  • A vector is 9.55 m long and points in a -48.0 degree direction. find the x-component of the vector.
    6·1 answer
  • Explain how a Faraday motor works, please. Help me out
    5·1 answer
  • A mass m1 is hung from a spring oscillates on a spring with spring constant k1. The amplitude of its motion is A1 and it has a m
    6·1 answer
  • Hydroelectric power uses: wind water coal the sun
    13·1 answer
  • In a photoelectric effect experiment, it is observed that violet light does not eject electrons from a particular metal. Next, r
    15·1 answer
  • Lab: Waves and Diffraction<br> Assignment: Lab Report<br> Anyone have this completed
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!