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Agata [3.3K]
3 years ago
7

I’m a wave , the medium moves parallel to the direction that the wave travels

Physics
2 answers:
Furkat [3]3 years ago
5 0

8. a) Four different-coloured pennants are

going to be hung in a row to decorate a

gymnasium wall. In how many different

orders can the pennants be hung?

b) Repeat part (a) for five differentcoloured pennants.

c) Repeat part (a) for 10

IRINA_888 [86]3 years ago
5 0

Answer:

I agree up there

Explanation:

I take physics on odyssey ware too

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Init. A
Gekata [30.6K]

Answer:

v = 1/3 m / s = 0.333 m / s

in the direction of the truck

Explanation:

The average speed is defined by the variation of the position between the time spent

           v = Δx / Δt

since the position is a vector we must add using vectors, we will assume that the displacement to the right is positive, the total displacement is

           Δx = 20 - 15 +20

           Δx = 25 m

therefore we calculate

         v = 25/75

         v = 1/3 m / s = 0.333 m / s

in the direction of the truck

7 0
3 years ago
Why there is tides in sea and ocean
AleksandrR [38]

Answer:

<em>    Tides are the rise and fall of sea levels. Tides occur due to the gravitational forces exerted on the Earth by moon, and to a lesser extent, the sun. That's why tides occur in ocean or sea.</em>

Hope this helps

:)

7 0
4 years ago
3. The circuit below shows two outdoor lights, run by a battery. Four amps of
miv72 [106K]

Answer:

The answer to your question is given below.

Explanation:

From the diagram given in the question, we can see that the bulbs are in parallel connection. This implies that different current will go through the bulb but the same voltage. But the resistance of each bulb is the same, therefore the same current current will go through them.

This can further be understood if we determine the current flowing through each bulb. This is illustrated below:

Voltage (V) = 30V

Resistant 1 (R1) = 15Ω

Current 1 (I1) =..?

V = I1R1

30 = I1 x 15

Divide both side by 15

I1 = 30/15

I1 = 2A.

Voltage (V) = 30V

Resistant 2 (R2) = 15Ω

Current 2 (I2) =..?

V = I2R2

30 = I2 x 15

Divide both side by 15

I2 = 30/15

I2 = 2A.

The overall current(I) in the circuit:

I = I1 + I2

I = 2 + 2 = 4A.

From the illustrations above, we can see that the same current will flow through each bulb as the will current split into two equal parts

4 0
4 years ago
What are tissues made up of?
ELEN [110]

Answer:

tissue are made of cells .

5 0
3 years ago
Read 2 more answers
Work is done on an object when
liubo4ka [24]

Answer:

Incomplete question but the closest ans is

A) The displacement is not zero

Explanation:

For work to be done, the direction of force has to be parallel to or in the same direction as the displacement, this can then be calculated by

W=Fs   \ cosθ

Where θ is the angle between direction of force and direction of displacement

By this equation,

if Force is zero, W is zero

if displacement is zero, W is zero

if force and displacement are perpendicular θ=90, cosθ = 0

So A is the cloest choices

6 0
3 years ago
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