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storchak [24]
3 years ago
11

What does a notational analyst do

Physics
1 answer:
Mars2501 [29]3 years ago
6 0

Analyzes sports games in order to help coaches plan out strategy.

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A 3.00-m rod is pivoted about its left end. A force of 7.80 N is applied perpendicular to the rod at a distance of 1.60 m from t
dalvyx [7]

Answer:

The net torque about the pivot is and the answer is 'c'

c. T_{net}=8.58

Explanation:

T=F*d

The torque is the force apply in a distance so it is the moment so depends on the way to be put it the signs so:

T_1=F_1*d_1

T_1=7.8N*1.6m=12.48N*m

T_2=F_2*d_2

T_2=2.60N**cos(30)*3.0m

T_2= - 3.9 N*m

Now to find the net Torque is the summation of both torques

T_{net}=T_1+T_2

T_{net}=12.48N-3.9N=8.58N

8 0
3 years ago
A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30° relative to the normal. If the index of
son4ous [18]

Answer:

<h2>35</h2>

Explanation:

According to snell's law which states that the ratio of the sin of incidence (i) to the angle of refraction(n) is a constant for a given pair of media.

sini/sinr = n

n is the constant = refractive index

Since the diver shines light up to the surface of a flat glass-bottomed boat, the refractive index n = nw/ng

nw is the refractive index of water and ng is that of glass

sini/sinr = nw/ng

given i = 30°, nw = 1.33, ng = 1.5, r = angle the light leave the glass

On substitution;

sin 30/sinr = 1.33/1.5

1.5sin30 = 1.33sinr

sinr = 1.5sin30/1.33

sinr = 0.75/1.33

sinr = 0.5639

r = arcsin0.5639

r ≈35°

angle the light leave the glass is 35°

7 0
2 years ago
20 points please answer
Anna [14]
Another way to test your question is to build your own miniature buildings. Depending on how in-depth you go, building could get a little pricey, but if you keep it basic there shouldn't be a problem. Decide on a certain number of foundations to test [maybe 3 or so] and try simulating an earthquake. 
<span>Hope this helps! </span>
6 0
2 years ago
Having a stronger negative or positive change on one side is called what ?
maxonik [38]
Do you have choices?

5 0
2 years ago
Which of the following is the correct SI unit to measure of rope?
sergij07 [2.7K]

Hello!

The answer should be the third option.

Explanation: Because the meters is the correct SI unit to measure of rope. And thank you for posting at here on Brainly. And have a great day! -Charlie

7 0
2 years ago
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