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Lilit [14]
3 years ago
5

One way to describe a wave crest is the amount of ___________ applied over an area.

Physics
2 answers:
Pani-rosa [81]3 years ago
8 0
I believe it’s force but i’m not really sure.
notsponge [240]3 years ago
8 0

Answer: The answer is force

Explanation:

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A+B A=3i+4j-k B=5i+6j+2k​
OlgaM077 [116]

\text{Given that,}\\\\\vec A =3 \hat i + 4 \hat j - \hat k ~ \text{and}~ \vec B = 5\hat i + 6 \hat j +2 \hat k \\ \\\text{Now,}\\\\\vec A + \vec B = 3 \hat i  +4 \hat j - \hat k + 5 \hat i + 6 \hat j + 2 \hat k\\\\~~~~~~~~~~=8 \hat i +10 \hat i + \hat k

7 0
2 years ago
The displacement x with respect to time t of a particle moving in simple harmonic motion is given by x = 5cos(16pi*t). where x i
Kitty [74]

Answer:

A that's is the answer

letter A is the answer

5 0
2 years ago
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An electrician is creating a wiring plan for a small house. He needs to create a plan that will allow the homeowners to turn off
Naily [24]
So the answer is B) he should wire each room in parallel. This is because when the bulbs are in parallel if one part of the parallel circuit is broken (eg when you switch a light off) then the current can still flow to all the other bulbs, meaning they stay turned on. Hope this helps :)
8 0
3 years ago
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Explain how a parachute works
Shtirlitz [24]
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4 0
3 years ago
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Sarah, who has a mass of 55 kg, is riding in a car at 20 m/s. She sees a cat crossing the street and slams on the brakes! Her se
avanturin [10]

Answer:

-2200 N

Explanation:

The change in momentum of Sarah is equal to the impulse, which is the product between the force exerted by the seatbelt on Sarah and the time during which the force is applied:

\Delta p=I\\m \Delta v = F \Delta t

where

m is the mass

\Delta v is the change in velocity

F is the average force

\Delta t is the duration of the collision

In this problem:, we have:

m = 55 kg is Sarah's mass

\Delta v = 0-20 = -20 m/s  is the change in velocity

\Delta t = 0.5 s  is the duration of the collision

Solving for F, we find the force exerted by the seatbelt on Sarah:

F=\frac{m\Delta v}{\Delta t}=\frac{(55)(-20)}{0.5}=-2200 N

Where the negative sign indicates that the direction of the force is opposite to that of Sarah's initial velocity.

5 0
3 years ago
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