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Aleksandr [31]
3 years ago
7

A standing wave is a wave that travels through space indefinitely. True or false

Physics
1 answer:
Step2247 [10]3 years ago
4 0
A standing wave is a wave that travels through space indefinitely.: 
<span>False.
</span>
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A force acts on a body of mass 13 kg initially at rest. The force
PtichkaEL [24]

Answer:

Force that acted on the body was F = 13 N

Explanation:

If once accelerated, the body covers 60 meters in 6 seconds, then its velocity is 60/6 m/s = 10 m/s

When the force was acting (for 10 seconds) the object accelerated from rest (initial velocity vi = 0) to 10 m/s (its final velocity). therefore we can use the kinematic equation for the velocity in an accelerated motion given by:

v_f=v_i+a*t

which in our case becomes;

10\,m/s=0+a*(10\,s)

and we can solve for the acceleration as:

a = 10/10  m/s^2 = 1 m/s^2

Therefore the force acting on the body, based on Newton's 2nd Law expression: F = m * a is:

F = 13 kg * 1 m/s^2 = 13 N

4 0
3 years ago
What is the distance to a star whose parallex is 0.1 sec?
Arte-miy333 [17]

Answer:

30.86\times 10^{13} km

Explanation:

Given the parallex of the star is 0.1 sec.

The distance is inversely related with the parallex of the star. Mathematically,

d=\frac{1}{P}

Here, d is the distance to a star which is measured in parsecs, and P is the parallex which is measured in arc seconds.

Now,

d=\frac{1}{0.1}\\d=10 parsec

And also know that,

1 parsec=3.086\times 10^{13} km

Therefore the distance of the star  is 30.86\times 10^{13} km away.

6 0
3 years ago
Which part of the eye controls whether or not your pupil dilates or restricts?
valentinak56 [21]
The answer would be, the iris. Hope this helps:)
5 0
4 years ago
Can the momentum of an object change
OlgaM077 [116]
The answer for this is yes.
8 0
4 years ago
Read 2 more answers
Armatures are wound to provide high voltage, high current, or some specific combination of voltage and current. Which type of wi
Lena [83]

Answer:

<em><u>Wave Winding</u></em>

Explanation:

Wave type of winding is mostly used for a circuit with a very high voltage and a comparable low magnitude of current. The winding can be Progressive (Right slot after first round turn) or Retrogressive (Left slot after first round turn).

7 0
3 years ago
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