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
photoshop1234 [79]
4 years ago
13

Pls helpwill give the brainliest!​

Physics
1 answer:
Serga [27]4 years ago
8 0

Explanation:

longitudinal wave .

they are composed of rarefaction and compression

there is change of pressure variations through medium

there is change in density throughout the medium

they can be propagated in liquid soild and gasses

example sound wave

transverse wave

they are composed of troughs and Crest

there is no pressure variations throughout the medium

there is no change in density

they can propagated in liquid soild but not gases

example light wave

You might be interested in
Energy is observed in two basic forms: potential and kinetic. Which of the following correctly matches these forms with a source
Travka [436]

Answer:

option C

Explanation:

The correct answer is option C

Kinetic energy is the energy which is due to the motion of body.

Potential energy is the energy due to virtue of position of the object.

option A is not true because potential energy is due the position of the body

Option B should be the potential energy not kinetic energy.;

Option D is motion of individual molecule leads to kinetic energy not potential energy.

So, the correct answer is option is the covalent bonds of a sugar molecule is potential energy because of the position of bond.

4 0
3 years ago
What is the final temperature of a block if it’s thermal energy increases by 2,130 that has a mass of 50kg, a specific heat of 7
BartSMP [9]

Answer:

I dont know

Explanation:

4 0
4 years ago
Does the galvanometer deflect to the left or the right when:________
igomit [66]

Complete question is;

Does the galvanometer deflect to the left or the right when

a) the magnet is being pushed in

b) the magnet is being pulled out

c) the magnet is being held steady?

Answer:

Option A - when the magnet is being pulled out

Explanation:

Faraday’s law of electromagnetic induction states that: “Voltage is induced in a circuit whenever relative motion exists between the conductor and the magnetic field, and the magnitude of the voltage will be proportional to the rate of change of the flux”.

Now, applying it to the question, When the magnet is moved towards the sensitive center of the galvanometer and then pulled out, the needle of the galvanometer will deflect away from its center position in one direction only but when it is held steady, the needle of the galvanometer will return back to zero.

7 0
3 years ago
#26: Why is spear fishing much more successful for scuba divers than someone spear fishing from above the water? Explain your re
frozen [14]
The water has an irregular surface so if the light rays fall on top then it will reflect oppositely or in some cases may refract, so the fish will seem a bit smaller or further or closer in anyway, example if u put a straw in water it looks bent but is it ? nope. So the main reason is that it refracts which makes the accuracy lesser which make it difficult.
6 0
3 years ago
In part one of this experiment, a 0.20 kg mass hangs vertically from a spring and an elongation below the support point of the s
statuscvo [17]

To solve this problem it is necessary to apply the concepts related to Hooke's Law as well as Newton's second law.

By definition we know that Newton's second law is defined as

F = ma

m = mass

a = Acceleration

By Hooke's law force is described as

F = k\Delta x

Here,

k = Gravitational constant

x = Displacement

To develop this problem it is necessary to consider the two cases that give us concerning the elongation of the body.

The force to keep in balance must be preserved, so the force by the weight stipulated in Newton's second law and the force by Hooke's elongation are equal, so

k\Delta x = mg

So for state 1 we have that with 0.2kg there is an elongation of 9.5cm

k (9.5-l)=0.2*g

k (9.5-l)=0.2*9.8

For state 2 we have that with 1Kg there is an elongation of 12cm

k (12-l)= 1*g

k (12-l)= 1*9.8

We have two equations with two unknowns therefore solving for both,

k = 3.136N/cm

l = 8.877cm

In this way converting the units,

k = 3.136N/cm(\frac{100cm}{1m})

k = 313.6N/m

Therefore the spring constant is 313.6N/m

3 0
3 years ago
Other questions:
  • What shape is the orbit of the planets
    6·2 answers
  • Why do atoms have relatively the same size even though they may have widely different masses?
    11·1 answer
  • I need to know the answer to the question
    8·1 answer
  • How many ohms of resistance must be present in a circuit that has 240 volts and a current of 15 amps?
    6·2 answers
  • Please help and explain please thank youu
    7·1 answer
  • What does dimension means/how to calculate dimension?
    11·1 answer
  • A solid uniform disk of diameter 3.20 m and mass 42 kg rolls without slipping to the bottom of a hill, starting from rest. if th
    10·1 answer
  • Two students are watching a person riding a skate board up and down a ramp. each student shares what they think about the energy
    12·1 answer
  • Darwin believed that emotional expressions began as ________ that came to have evolutionary value because they ________. Select
    6·1 answer
  • What two factors determine the amount of friction there will be between objects?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!