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Veseljchak [2.6K]
3 years ago
14

The wave frequency is a measure of

Physics
1 answer:
Grace [21]3 years ago
7 0

Answer:

C. The number of waves that pass a particular point in a unit of time.

Explanation:

The number of waves that pass a fixed point in unit time and the number of cycles or vibrations undergone during one unit of time by a body in periodic motion is called as frequency.

A body in periodic motion is said to have undergone one cycle or one vibration after passing through a series of events or positions and returning to its original state.

The unit of frequency is Hertz.

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HELP FAST CORRECT ANSWERS ONLY
SSSSS [86.1K]

Answer:

D) it explodes as a super nova

Explanation:

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3 years ago
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Thorium^+2
Bad White [126]

Answer:

chemical symbol: Th

atomic number:90

protrons :90

neutrons:142

group#:4

period#: 9

Explanation:

you take the atomic weight (232.038)and subtract the atomic number to get (90) which is your neutrons

6 0
3 years ago
By newton third law of motion, we know that if a rocket ship pushes down on the ground, the ground will push back up on the rock
Furkat [3]

We don't know that at all. The 3rd law says that the REaction is opposite and EQUAL to the action.  We don't know where that "twice as much" comes from.

6 0
4 years ago
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if you throw a rock straight up at a speed of 19m/s. How long goes it take the ball to reach its maximum height?
Scrat [10]

Answer:

It requires <u>1.9 seconds</u> to reach maximum height.

Explanation:

As per given question,  

Initial velocity (U) =19 m/s

Final velocity (V) = 0 m/s

\text { Taking acceleration due to gravity }(a)=10 \mathrm{m} / \mathrm{s}^{2}

Maximum height = S

Time taken is "t"

<u>Calculating time taken to reach maximum height:</u>

We know that time taken to reach the maximum height is calculated by using the formula V = U + at

Substitute the given values in the above equation.

Final velocity is “0” as there is no velocity at the maximum height.

0=19+10 \times t

-19=10 \times t

\frac{-19}{10}=t

t = 1.9 seconds.

The time taken to reach maximum height is <u>1.9</u> seconds.

<u>Calculating maximum height</u>:

\text { Consider the equation } V^{2}-U^{2}=2 a S

Solving the equation we will get the value of S

0-19^{2}=2 \times(-10) \times \mathrm{S} .(-\text { is due to opposite of gravity) }

-361 = -20S

Negative sign cancel both the sides.

\mathrm{S}=\frac{361}{20}

S = 18.05 m

Maximum height is 18.05 m  .

3 0
3 years ago
Does anyone know this? How far does it travel?
erik [133]
U=5.82,a=2.35,t=3.25

s=u*t+ \frac{1}{2}*a* t^{2}

just substitute.
5 0
3 years ago
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