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
Inessa [10]
3 years ago
9

If two waves with identical crests and troughs meet, what is happening? The wave is reflecting. Constructive interference is occ

urring. The wave is breaking. Destructive interference is occurring. Save
Physics
2 answers:
Kazeer [188]3 years ago
7 0
The correct answer would be that destructive interference is happening. In this interference, the crest of a wave meets a trough of another wave resulting to an amplitude that is lower. The opposite is called the constructive interference. Hope this answers the question.
soldi70 [24.7K]3 years ago
7 0

The answer is: A. Constructive interference is occurring.

Hope this helped! :)

You might be interested in
A motor does a total of 480 joules of work in 5.0 seconds to lift a 12-kilogram block to the top of a rampThe average power deve
Flauer [41]

Answer:

there it is fella

we neglect the mass data

3 0
3 years ago
A boy throws a baseball onto a roof and it rolls back down and off the roof with a speed of 3.05 m/s. If the roof is pitched at
vekshin1

1) Time in the air: 0.78 s

The motion of the ball is a projectile motion, which consists of two independent motions:

- A horizontal motion with constant horizontal velocity

- A vertical motion with constant downward acceleration of

g=-9.8 m/s^2 (acceleration of gravity)

The initial vertical velocity is

u_y = u sin \theta = (3.05)(sin(-40^{\circ}))=-1.96 m/s

where the negative sign means the direction is downward.

The vertical position of the ball is given by

y(t) = h + u_y t + \frac{1}{2}gt^2

where

h = 4.50 m is the initial heigth of the ball when it starts falling down

The ball reaches the ground when y = 0, so we have:

0 = 4.50 -1.96t-4.9t^2

This is a second-order equation; solving for t, we get

t = -1.18 s

t = 0.78 s

We discard the negative solution since it has no physical meaning, so we can say that the ball spent 0.78 s in the air.

2) Horizontal distance: 1.83 m

For this second part of the problem, we just have to consider the horizontal motion of the ball.

As we said previously, the motion of the ball along the horizontal direction is a uniform motion with constant velocity, which is given by

v_x = u cos \theta = (3.05)(cos (-40.0^{\circ}))=2.34 m/s

where u = 3.05 m/s is the initial speed and \theta the angle of projection.

For a uniform motion, we can use the following relationship between distance covered and velocity:

d=v_x t

and substituting t = 0.78 s, we find the total distance travelled along the horizontal direction by the ball before reaching the ground:

d=(2.34)(0.78)=1.83 m

7 0
3 years ago
Diffrence between vector and scalar
Rama09 [41]

Answer:

Vector has a direction and a magnitude, scalar only has a magnitude

Explanation:

5 0
3 years ago
Which sentence best explains the law of conservation of mass as applied to
drek231 [11]

Answer:

A. The amount of mass changes only slightly during a chemical

reaction.

3 0
2 years ago
A straight line is drawn on the surface of a 14-cm-radius turntable from the center to the perimeter. A bug crawls along this li
sleet_krkn [62]

Answer:

v = \left[\begin{array}{c}0.66&0\end{array}\right]m/s

Explanation:

The position vector r of the bug with linear velocity v and angular velocity ω in the laboratory frame is given by:

\overrightarrow{r}=vtcos(\omega t)\hat{x}+vtsin(\omega t)\hat{y}

The velocity vector v is the first derivative of the position vector r with respect to time:

\overrightarrow{v}=[vcos(\omega t)-\omega vtsin(\omega t)]\hat{x}+[vsin(\omega t)+\omega vtcos(\omega t)]\hat{y}

The given values are:

t=\frac{x}{v}=\frac{14}{3.8}=3.7 s

\omega=\frac{45\times2\pi}{60s}=4.7\frac{1}{s}

8 0
3 years ago
Other questions:
  • If we decrease the amount of force applied to an object, and all other factors remain the same, the amount of work completed wil
    5·2 answers
  • What detects the original stimulus ?
    5·1 answer
  • Which scale of measurement measures the magnitude or strength of an earthquake based on seismic waves?
    8·2 answers
  • Please help on this one ?
    14·1 answer
  • What is the angular speed of a body vibrating<br>at 50 cycles per second:​
    11·1 answer
  • You are heating two chunks of metal of the same size and shape. One is made of lead and is heated
    7·1 answer
  • A mass of 100 grams of a particular radioactive substance decays according to the function m(t)=100e−t850
    13·1 answer
  • What type of bond is formed when two or more water molecules interact?
    14·1 answer
  • Explain what the ionosphere is and how it interacts with some radio waves.
    13·1 answer
  • That minimum coefficient of static friction between the tyres and the road that will allow the car that will round safely.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!