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
ankoles [38]
3 years ago
9

A hair dryer required 12 V to operate properly. When plugged into a 120 V outlet, a transformer must change voltage. If the prim

ary has 57 turns, how many turns does the secondary have?
Physics
1 answer:
grigory [225]3 years ago
5 0

Answer:

5.7 turns

Explanation:

You might be interested in
A newspaper and a metal lunchbox are sitting in sun. Why does metal lunchbox feel hotter to touch than a newspaper?
Thepotemich [5.8K]

Answer:

A

Explanation:

the metal lunchbox has a higher conductivity

<h2 />
3 0
3 years ago
Student C said, “I don’t agree with either model you drew. I think the Sun goes around Earth. The evidence is that you can see t
xxTIMURxx [149]

Answer:

See the explanation below

Explanation:

Student c's belief is fulfilled only for the movement of the earth with respect to the sun. But it has no validity or does not exist when it is necessary to explain other physical phenomena with respect to other satellites. For example, how would you explain the phases of the moon, if the Earth is located in the center of the Galaxy?, another serious question regarding the observations made by scientists millions of years ago, where they observed that the distances of the Earth from other planets were changing, with respect to time. If the Earth was in the center, all the planets and the sun would revolve around it preserving a constant distance (radius), at all times.

Other phenomena to explain would be the seasons on Earth, these are due to the axis of inclination of the Earth and the rotation of it around the sun.

5 0
3 years ago
The sound produced by the loudspeaker in the drawing has a frequency of 11999 Hz and arrives at the microphone via two different
const2013 [10]

The speed at which sound travels through the gas in the tube is 719.94m/s

<u>Explanation:</u>

Given:

Frequency, f = 11999Hz

Wavelength, λ = 0.03m

Velocity, v = ?

Sound speed in the tube is calculated by multiplying the frequency v by the wavelength λ.

As the sound loudness changed from a maximum to a minimum, then we know the sound interference in the case changed from constructive interference (the two sound waves are in phase, i.e. peaks are in a line with peaks and so the troughs), to a destructive interference (peaks coinciding with troughs). The least distance change required to cause such a change is a half wavelength distance, so:

λ/2 = 0.03/2

 λ  = 0.06m

We know,

v = λf

v = 0.06 X 11999Hz

v = 719.94m/s

Therefore, the speed at which sound travels through the gas in the tube is 719.94m/s

3 0
3 years ago
Describe the temperature changes that occur as u move upward through the troposphere.
rjkz [21]
The temperature decreases as you go up. 
4 0
3 years ago
Read 2 more answers
Which statements best describe x-rays? check all that apply. x-rays are electromagnetic waves. x-rays are longitudinal waves. x-
igor_vitrenko [27]

X ray is one of the electromagnetic waves.

As per Clark Maxwell's electromagnetic theory, all the electromagnetic waves move with the velocity of light i.e c= 3×10^8 m/s

In case of electromagnetic waves,the electric field and magnetic field are perpendicular to each other as well as perpendicular to the direction of propagation.The electromagnetic waves exhibit the property of polarisation. Hence they are transverse in nature.

Hence the best statements about X- ray will be-

1- X -rays are electromagnetic waves

2-X-rays are transverse transverse waves

3- X- rays travel at the speed of light.


3 0
3 years ago
Read 2 more answers
Other questions:
  • Which two factors does the power of a machine depend on
    8·2 answers
  • WILL GIVE YOU A MEDAL!!<br><br> To increase the current in a circuit, the _____ can be increased
    8·2 answers
  • An athlete rotates a 1.00-kg discus along a circular path of radius 1.09 m. The maximum speed of the discus is 17.0 m/s. Determi
    7·1 answer
  • If your heart is not strong enough or efficient enough, it is difficult to (3 points)
    13·2 answers
  • A double-slit experiment is set up using red light (λ = 706 nm). A first order bright fringe is seen at a given location on a sc
    9·1 answer
  • What is mass number
    6·2 answers
  • _________ refers to the process whereby at low pressures a solid changes directly into the vapor phase without passing through t
    10·1 answer
  • A body of mass 10 kg is pulled by a force 8 N. calculate the acceleration and the the final velocity of the body after 5 second.
    5·1 answer
  • Can yall Please fill out them blanks i need help it's due Today.
    8·1 answer
  • A flat coil is in a uniform magnetic field. What angle between the magnetic field and the plane of the coil produces the maximum
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!