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vredina [299]
3 years ago
10

URGENT DUE RN i need help plsssss

Physics
1 answer:
VMariaS [17]3 years ago
5 0
I’m pretty sure it’s b
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A sound signal traveling underwater has a frequency of 230 hertz. The speed of sound underwater is 1.45 × 103 meters/second. Wha
Sholpan [36]

Wavelength  =  (wave speed)  /  (frequency)

                     =      (1,450 m/s)  /  (230 / sec)

                    =              6.30 meters        (rounded)

Hope this helped friend! :)

4 0
3 years ago
Read 2 more answers
Which equation represents mass-energy equivalence? E = m2c E = mc2 E = (mc)2 E = mc
motikmotik

Einstein's energy mass equivalence relation say that if the whole given mass is converted to energy then it would be

E = mc^2

where

m = mass in kg

c = speed of light in m/s

this is the origination of quantum physics and by this formula we can relate the dual nature of light and particle

So correct relation above will be

E = mc^2

4 0
4 years ago
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List any similarities between discovered exoplanets and planets in our solar system.
gregori [183]

Answer:

1. Revolve around a point

2. Formed from dust and gas particles

3. Exoplanets and associated star orbit a common center of mass  

4. Composed of gases found in Jupiter and Saturn

3 0
3 years ago
I was playing goalie in a soccer league and made a save. The ball was traveling at 14 m/s and has a mass of 0.45 kg. How muck ki
Zigmanuir [339]

Answer:

Kinetic energy = 44.1 J

Explanation:

Given:

Velocity of ball = 14 m/s

Mass of ball = 0.45 kg

Find:

Kinetic energy

Computation:

An item's kinetic energy is force it has as a result of its motion. It is the amount of work necessary to move a body of a known volume from rest to a specified velocity.

Ke = (1/2)(m)(v²)

Ke = (1/2)(0.45)(14²)

Ke = (1/2)(0.45)(196)

Kinetic energy = 44.1 J

6 0
3 years ago
Marlon is studying a crab population. He has a large batch of crabs that were captured in the ocean. He places a plastic tag on
tatiyna
First time I did it I got 2143658709
7 0
3 years ago
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