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
Greeley [361]
3 years ago
6

Please Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11

Physics
1 answer:
Svetlanka [38]3 years ago
6 0

Answer:

a)The correct answer is option X

b)The correct answer is option Z

Explanation:

For question 3 -

When the 2 waves interfere , they add up at all the points

Since the 2 waves have 0 phase difference (as seen from the diagram) , the resultant wave also has 0 phase difference.

The amplitude of 2 waves will simply add up -

A_{1} = 1

A_{2} = 0.5

∴A_{net} = A_{1} + A_{2} = 1.5

The resultant wave should also have 0 displacement at origin.

∴The correct answer is option X

For question 35 -

The 2 waves are out of phase by 180°

∴ The amplitude of two waves would simply get subtracted -

A_{1} = 1

A_{2} = 1

∴A_{net} = A_{1} - A_{2} = 0

Since the amplitude is 0 the displacement of wave would be 0 at every point.

∴ The correct answer is option Z

You might be interested in
A car is traveling at 35.8 m/s. What acceleration would it have if it took 2.0 s to come to a complete stop?
nasty-shy [4]

Answer:

\boxed {\boxed {\sf a= -17.9 \ m/s^2}}

Explanation:

Acceleration is equal to the change in velocity over the change in time.

a=\frac{v_f-v_i}{t}

The initial velocity is 35.8 meters per second. The final velocity is 0 meters per second when the car comes to a complete stop. The time is 2.0 seconds.

v_f= 0 \ m/s \\v_i= 35.8 \ m/s \\t= 2  \ s

Substitute the values into the formula.

a=\frac{0 \ m/s - 35.8 \ m/s }{2 \ s}

Solve the numerator.

a= \frac{ -35.8 \ m/s} {2 \ s}

Divide.

a= -17.9 \ m/s/s = -17.9 \ m/s^2

The car's acceleration is <u>-17.9 meters per square second.</u> The acceleration is negative because the car was coming to a stop and slowing down.

4 0
3 years ago
L 9.4.3 Test (CST): Bond. Molecular Bond,
Usimov [2.4K]

Answer:

False

Explanation:

Carbon dioxide is made up of polar molecules, but the dipole moments cancel each other out. Therefore, not a polar molecule.

3 0
2 years ago
Using the rules for significant figures, what do you get when you subtract 15.54 from 508.9538? A. 493 B. 493.4 C. 493.41 D. 493
IceJOKER [234]

You get 493.41 when you subtract 15.54 from 508.953 using the rules for significant figures.

 

For addition and subtraction, look at the decimal portion (i.e., to the right of the decimal point) of the numbers ONLY. Here is what to do:

1) Count the number of significant figures in the decimal portion of each number in the problem. (The digits to the left of the decimal place are not used to determine the number of decimal places in the final answer.)

2) Add or subtract in the normal fashion.

3) Round the answer to the LEAST number of places in the decimal portion of any number in the problem.

 

 

The correct answer between all the choices given is the third choice or letter C. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

5 0
3 years ago
Read 2 more answers
How much energy (in kWh) is produced in one day by a solar panel of surface area A =15
Semenov [28]

Answer:

I am calculating the total area of a solar panel for a particular load demand by ... designing according to energy demand for a day then how will it affect total solar area? ... Total Power Output=Total Area x Solar Irradiance x Conversion Efficiency ... would need is a 1 m2 solar panel to produce 1000 Watts of electrical energy.

Explanation:

5 0
3 years ago
For the meter stick shown in figure 10-4, the force F1 10.0 N acts at 10.0 cm. What is the magnitude of torque due to F1 about a
Phantasy [73]

Torque is equal position vector times (r) times force vector (F).  Since F= 10 N and r = 0.1 m, so the torque is equal to (10 N) x ( 0.1 m) = 1Nm. The direction of the torque would be into the screen, clockwise rotation.

8 0
3 years ago
Other questions:
  • What is mass ?<br> Please help
    10·2 answers
  • According to Charles's Law, if the pressure of a gas stays constant, when the temperature increases, the volume __________.
    15·2 answers
  • Which is not a way to conserve existing energy resources?
    8·2 answers
  • What is the distance between two points (3,4,-5) and (2,1,0,)
    14·1 answer
  • in which activity is no work done? A. pushing a shopping cart B. climbing stairs C. holding a brick D. lifting a book
    7·1 answer
  • A conducting sphere contains positive charge distributed uniformly over its surface. Which statements about the potential due to
    6·1 answer
  • 1.60 kg frictionless block is attached to an ideal spring with force constant 315 N/m . Initially the spring is neither stretche
    5·1 answer
  • In a game of tug of war, Team A pulls with a force 850N, Team B pulls with force of 975N. Calculate the net force on the rope. B
    7·1 answer
  • ASAP PLEASE HELP WITH THIS 1.Mike and tim are outside with a wagon time weight 311 Newtons(70lbs) and gets in the the wagon and
    15·1 answer
  • what current flows through a 2.54cm diameter rod of pure silicon that is 20.0cm long ,when 1.00x10000V is applied to it
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!