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2 years ago

Read the scenario below and answer the question that follows.

Physics

1 answer:

hoa [83]2 years ago

8 0

The answer you are looking for is D most of those are signs of anxiety

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If the detector readings are proportional to the amplitude of the microwave E field, the data from the first polarization experi

ololo11 [35]

Answer:

Fields and variables are proportional

Explanation:

To solve the problem we must first identify the Vector Intensity,

The intensity is given by:

$I = I_ {0} cos^2 (\theta)$

We also know that the change given by the Intensity is always the square of the amplitude,

This is,

$I = A ^ 2$

The intensity is proportional to the change exerted on $cos ^ 2 (\theta)$

That is to say that in turn the amplitus is proportional to the Intensity.

On the other hand, relating the two variables we have

$A ^ 2 = A ^ 2_ {0} cos ^ 2 \theta$

$A = A_ {0} cos \theta$

In this way we can conclude that the electric field of intensity is also proportional to $cos ^ 2 \theta$

7 0

3 years ago

A particle moves with a velocity    1 v 5j 3j 6k ms      under influence of a contact force  F 10i 10j 20k N.    

katrin2010 [14]

Answer:

P = 200 W

Explanation:

The expression for the power is

P = W / t

the job

W = F d

we substitute

P = F d / t

P = F. v

We apply this equation to our case where the velocity is

v = (5 i + 3j + 6k) m / s

and the force is

F = (10i + 10j +20 k) N

we substitute in the power equation, remember that the scalar product of the unit vectors is

i.i = j.j = k.k = 1 and the other products are zero

P = 10 5 + 10 3 + 20 6

P = 200 W

6 0

3 years ago

2. Another car weighs 2000kg, you can push it .05 m/s?, how much force are you

Vesna [10]

Answer:

$\boxed {\boxed {\sf 100 \ Newtons}}$

Explanation:

We are asked to calculate the force you are applying to a car. According to Newton's Second Law of Motion, force is the product of mass and acceleration. Therefore, we can use the following formula to calculate force.

$F= m \times a$

The mass of the car is 2000 kilograms and the acceleration is 0.5 meters per second squared.

m= 2000 kg
a= 0.05 m/s²

Substitute the values into the formula.

$F= 2000 \ kg \times 0.05 \ m/s^2$

Multiply.

$F= 100 \ kg *m/s^2$

Convert the units. 1 kilogram meter per second squared is equal to 1 Newton. Our answer of 100 kilogram meters per second square is equal to 100 Newtons.

$F= 100 \ N$

You apply 100 Newtons of force to the car.

7 0

3 years ago

What are the spiral arms of the milky way made of?

valentinak56 [21]

In short, those arms are made of "stars, dust and gas". They are visible as spiral arms because they have a higher density of those objects than the space between them.

The arms are an area where the density of stars (and planets and other objects) is unusually high and where the start are young - recently formed- and this also gives those starts their visibility as young starts are also very bright.

8 0

3 years ago

A positive test charge of 8.5 × 10 negative 7 Columbus experiences a force of 4.1 × 10 negative 1 N calculate the electric field

Sophie [7]

Explanation:

direction of electric field is same as that of force experienced by the test charge

8 0

3 years ago