3 years ago

3. What is the frequency of a wave that has a wave speed of 20 m/s and a wavelength of 0.50 m?

1 answer:

3 0

Explanation:

everything can be found in the picture

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kupik [55]

<span>b. becomes weaker
try this </span>

3 0

3 years ago

barxatty [35]

Answer: You could dissolve it by heating it back up, then just cooling it down again.

Hope that helps!

6 0

3 years ago

Butoxors [25]

Answer:

The value is $v = 2.999 *10^{8} \ m/s$

Explanation:

From the question we are told that

The time taken to travel to the planet from earth is $t = 189 \ light-years$

The time to be spent on the ship is $t_{s} = 12 \ years$

Generally speed can be obtained using the mathematical relation represented below

$t_s = 2 * t * \sqrt{1 - \frac{v^2}{c^2 } }$

The 2 in the equation show that the trip is a round trip i.e going and coming back

=> $12 = 2 * 189 * \sqrt{1 - \frac{v^2}{(3.0*10^{8})^2 } }$

=> $v = 2.999 *10^{8} \ m/s$

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3 years ago

Shkiper50 [21]

Answer:

The answer is the kinetic energy of sled B after it crash is 6439j.

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2 years ago

-Dominant- [34]

Answer:

800m/s

Explanation:

6 0

2 years ago