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Dvinal [7]
2 years ago
13

A rocket is traveling toward the earth at 12c when it ejects a missile forward at 12c relative to the rocket.

Physics
1 answer:
Ahat [919]2 years ago
4 0

The correct value for the rocket speed measured by an observer on earth would be = 14c

<h3>Calculation and of the rocket speed</h3>

To calculate the speed of the rocket we should observe that the rocket and the missile are in a relative motion which are moving on the same direction.

The speed of the rocket = 12c

The speed of the missile = 12c

The individual speed of earth =0c

But, the relative speed of the missile and the Earth is the sum of individual speeds.

Thus, the speed of rocket as measured by an observer on the Earth would be 0 + 14c = 14c.

Therefore, the correct value for the rocket speed measured by an observer on earth would be =14c

Learn more about relative motion here:

brainly.com/question/17228388

#SPJ1

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blsea [12.9K]

Answer:

120,000

Explanation:

Millimeters to meters calculation-

Multiply by 1,000.

120 x 1,000 = 120,000.

This is the correct answer and formula.

Hope this helps!

8 0
3 years ago
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When a sinusoidal wave with speed 20 m/s , wavelength 35 cm and amplitude of 1.0 cm passes, what is the maximum speed of a point
vova2212 [387]

To solve this problem it is necessary to apply the concepts related to frequency as a function of speed and wavelength as well as the kinematic equations of simple harmonic motion

From the definition we know that the frequency can be expressed as

f = \frac{v}{\lambda}

Where,

v = Velocity \rightarrow 20m/s

\lambda = Wavelength \rightarrow 35*10^{-2}m

Therefore the frequency would be given as

f = \frac{20}{35*10^{-2}}

f = 57.14Hz

The frequency is directly proportional to the angular velocity therefore

\omega = 2\pi f

\omega = 2\pi *57.14

\omega = 359.03rad/s

Now the maximum speed from the simple harmonic movement is given by

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Then replacing,

V_{max} = (1*10^{-2})(359.03)

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8 0
4 years ago
Acceleration and Force
olga55 [171]

Answer:

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Explanation:

15m/s - 0m/s divided by 5 s = 3m/s

I'm no expert or anything so I could be wrong but this is the best I can give you. Sorry

6 0
2 years ago
Tooth fillings are often made of gold or porcelain because these materials are ______.
garri49 [273]
Tooth fillings are often made of gold or porcelain because these materials are nonreactive.

b. nonreactive.
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4 years ago
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B is the answer i pretty sure...

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