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il63 [147K]
2 years ago
15

Imagine that you are going to visit your friend. Before you get there, you decide to stop at the variety store. If you walk 200

m (N) from your home to the store, and then travel 600 m [S] to your friend's house, what is your total displacement?​
Physics
1 answer:
SashulF [63]2 years ago
6 0

Answer:

400m

Explanation:

Brainliest? :))

Let your initial displacement from your home to the store be

Dd

>

1 and your displacement from the store to your friend’s house

be Dd

>

2.

Given: Dd

>

1 = 200 m [N]; Dd

>

2 = 600 m [S]

Required: Dd

>

T

Analysis: Dd

>

T 5 Dd

>

1 1 Dd

>

2

Solution: Figure 6 shows the given vectors, with the tip of Dd

>

1

joined to the tail of Dd

>

2. The resultant vector Dd

>

T is drawn in red,

from the tail of Dd

>

1 to the tip of Dd

>

2. The direction of Dd

>

T is [S].

Dd

>

T measures 4 cm in length in Figure 6, so using the scale of

1 cm : 100 m, the actual magnitude of Dd

>

T is 400 m.

Statement: Relative to your starting point at your home, your

total displacement is 400 m [S].

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- direction of oscillation of magnetic field --> perpendicular to both, so it must be z-axis

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The time-averaged rate of energy flow of an electromagnetic wave is given by:

I=\frac{E^2}{2\mu_0 c}

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E = 310 V/m is the amplitude of the electric field

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