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
Deffense [45]
3 years ago
9

A wave has a wave length of 20mm and a frequency of 5 hertz. What is the speed?

Physics
2 answers:
zmey [24]3 years ago
7 0

Speed = (wavelength) x (frequency

Speed = (.020 m) x (5 / sec)

Speed = 0.1 m/s
Verizon [17]3 years ago
5 0
100 mm/s one hundred millimeters per second
You might be interested in
For elevator questions, does the weight of a person increase when the elevator is going up or if it's going down-
TiliK225 [7]

The weight of a person increase when the elevator is going up.

<h3>Weight of the person in the elevator</h3>

The weight of the person in the elevator is calculated as follows;

<h3>When the person is going up</h3>

F = ma + mg

F = m(a + g)

where;

  • a is acceleration of the person
  • g is acceleration due to gravity

<h3>When the person is going down</h3>

F = mg - ma

F = m(g - a)

Thus, the weight of a person increase when the elevator is going up.

Learn more about weight here: brainly.com/question/2337612

#SPJ1

6 0
2 years ago
A transformer has a primary coil with 106 turns and a secondary coil of 340 turns. The AC voltage across the primary coil has a
UkoKoshka [18]

To solve this problem it is necessary to apply the concepts related to transformers, that is to say passive electrical device that transfers electrical energy from one electrical circuit to one or more circuits.

From the mathematical definition we have that the relationship between the voltage of the first coil and the second coil is proportional to the number of loops of the first and second loop, that is:

\frac{V_s}{V_p} = \frac{N_s}{N_p}

Where

V_p =  input voltage on the primary coil.

V_s=input voltage on the secondary coil.

N_p=  number of turns of wire on the primary coil.

N_s = number of turns of wire on the secondary  coil.

Replacing our values we have:

V_p = 128V

N_p = 106

N_s = 340

Replacing,

\frac{V_s}{128} = \frac{340}{106}

V_s = 410.56V

From the same relations of number of turns and the voltage of the first and second coil we also have the relation of electricity and voltage whereby:

V_s I_s = V_p I_p

Where

I_p= Current Primary Coil

I_s = Current secundary Coil

Therefore:

I_s = \frac{V_p I_p}{V_s}

I_s = \frac{(128)(6)}{410.56}

I_s = 1.87 A

Therefore the maximum values for the secondary coil of the voltage is 410.56V and Current is 1.87A

5 0
3 years ago
how long does it take sound to travel the distance between the two microphones? Given.:wave 1 of microphone 1 has T=2 sec and f=
Maksim231197 [3]

Answer:

0.00583 seconds

Explanation:

8 0
3 years ago
What characteristics determine how easily two substances change temperature
ValentinkaMS [17]

Answer;

Amount of time the two substances are in contact

Area in contact between the two substances

Specific heat of the material that makes up the substances

Explanation;

The change in temperature of a substance is caused by heat energy. The change in temperature will depend on factors such as mass of the substance, the type of material it is made from, the time taken , specific heat of the material that makes the substance, and also the area of contact.

The amount of time the two substances are in contact affect the change in temperature such that if the two bodies are in contact for a longer time then a bigger change in temperature will be observed.

Specific heat capacity also determines the change in temperature that will be observed, such that a substance with a bigger specific heat capacity will record a small change in temperature.

7 0
3 years ago
Which statement best defines an electric field?
stich3 [128]

Answer:

D

Explanation:

3 0
2 years ago
Other questions:
  • A student conduct an experiment to determine habitation of salt to water affect the density of the water the student feels three
    10·1 answer
  • Need an answer fast
    11·1 answer
  • The temperature is cold if
    5·1 answer
  • A series circuit has an impedance of 62.0 Ω and a power factor of 0.720 at a frequency of 47.0 Hz . The source voltage lags the
    7·1 answer
  • An old iron battery was discarded in this meadow. The iron in the battery is undergoing a ____ change as it rusts. The rusting i
    13·2 answers
  • Select the statement that correctly completes the description of phase difference.
    5·1 answer
  • An object is dropped from 42m tall building. How long does It take to reach the ground?
    7·1 answer
  • Heeeeeeeeelp please ​
    10·2 answers
  • 5 points
    9·1 answer
  • List the Layers of Earth in order from Thickest to thinnest using the Data table on the Earth’s interior: (Combine numbers for L
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!