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denis-greek [22]
3 years ago
10

Do you guys know how to find out the Wave Speed using frequency and wavelength?

Physics
1 answer:
Eduardwww [97]3 years ago
6 0
Given the relationship: v = wavelength times frequency

this should be as simple as multiplying it out :)

for any other variable just rearrange

velocity = lambda x frequency

where lambda is the wavelength

units:

m/s = m x Hz (1/s)
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What are somethings about the Heliocentric model?
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Answer:

Heliocentrism, a cosmological model in which the Sun is assumed to lie at or near a central point (e.g., of the solar system or of the universe) while the Earth and other bodies revolve around it.

Explanation:

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3 years ago
Frank stands still while throwing a dart toward a target with a speed of 25 m/s.
fgiga [73]

ANSWER IS A)

THE SPEED IS 25 M/S FOR BOTH PEOPLE

9 0
3 years ago
You are in charge of designing a movie stunt for a new Fast and Furious film. In this scene a stunt person has to jump from a br
blondinia [14]

Answer:

103.5 meters

Explanation:

Given that a stunt person has to jump from a bridge and land on a boat in the water 22.5 m below. The boat is cruising at a constant velocity of 48.3 m/s towards the bridge. The stunt person will jump up at 6.45 m/s as they leave the bridge.

The time the person will jump to a certain spot under the bridge can be calculated by using the formula below:

h = Ut + 1/2gt^2

since the person will fall under gravity, g = 9.8 m/s^2

Also, let assume that the person jump from rest, then, U = 0

Substitute h, U and g into the formula above

22.5 = 1/2 * 9.8 * t^2

22.5 = 4.9t^2

22.5 = 4.9t^2

t^2 = 22.5/4.9

t^2 = 4.59

t = \sqrt{4.592}

t = 2.143 seconds

From definition of speed,

speed = distance /time

Given that the boat is cruising at a constant velocity of 48.3 m/s towards the bridge, substitute the speed and the time to get the distance.

48.3 = distance / 2.143

distance = 48.3 * 2.143

distance = 103.5 m

Therefore,  the boat should be 103.5m away from the bridge at the moment the stunt person jumps?

3 0
3 years ago
The magnetic field produced by a current in a long straight wire varies with respect to the radial distance r from the wire as G
Katarina [22]

Answer:

1/r

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The magnetic field produced by a current in a wire decreases with distance from the wire, this means the magnetic field produced by a currents is inversely proportional to it's distance from the wire.

Let E be magnetic field and r distance of wire

We have that,

E is inversely proportional to r

(E)×(1/r)

8 0
3 years ago
I’m done with Brainly so I’m giving out my points #5
pshichka [43]

Answer:

okay, thanks again

Explanation:

6 0
3 years ago
Read 2 more answers
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