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2 years ago

After striking both mirrors, at what angle relative to the incoming ray does the outgoing ray emerge?

1 answer:

4 0

The appropriate response is Zero degrees. The beam will leave the two mirrors along a way parallel to the one it came in on. This is the guideline of the corner reflector, which is frequently utilized as a radar target. Take note of that the corner reflector utilizes three reflecting surfaces (that are set up at 90o from each other) rather than the two like are being utilized here. Wikipedia has a truly awesome drawing that shows this two-dimentional issue pleasantly. A moment connection is given to the article on the corner reflector and the 3-D angles.

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An open rectangular tank 1 m wide and 2 m long contains gasoline to a depth of 1 m. If the height of the tank sides is 1.5 m, wh

lara [203]

Answer:

$a_y = 4.9\ m/s^2$

Explanation:

Given,

Width of rectangular tank, b = 1 m

Length of the tank, l = 2 m

height of the tank, d = 1.5 m

Depth of gasoline on the tank, h = 1 m

$\dfrac{dz}{dy}=-\dfrac{1.5-1}{1}$

$\dfrac{dz}{dy}=-0.5$

The differential form with the acceleration

$\dfrac{dz}{dy}=\dfrac{-a_y}{a_z + g}$

$-0.5=-\dfrac{a_y}{a_z + g}$

acceleration in z-direction = 0 m/s²

g = 9.8 m/s²

a_y is the horizontal acceleration of the gasoline.

$0.5=\dfrac{a_y}{0 + 9.8}$

$a_y = 9.8\times 0.5$

$a_y = 4.9\ m/s^2$

Hence, Horizontal acceleration of the gasoline before gasoline would spill is equal to 4.9 m/s²

3 0

2 years ago

Anybody know how to get minimum wind velocity?

IRISSAK [1]

Try looking at it like this and I'll bet you'll get it:

You're running through the boxcar on the train at 112 meters per second, but you notice that you're moving along the tracks at 210 meters per second. What must be the speed of the train along the tracks ?

8 0

2 years ago

A _________ is a graphical representation of association between variables.

tino4ka555 [31]

A. scatter plot (100% positive, btw quizzes is a good tool for answers)

3 0

2 years ago

Read 2 more answers

The amount of gravitational force exerted on each other between two objects depends on their

bogdanovich [222]

The gravitational force applies depends on the mass of both of the objects.

3 0

2 years ago

A spring whose spring constant is 850 N/m is compressed 0.40 m. What is the maximum speed it can give to a 0.5 kg box? Assume th

OverLord2011 [107]

The maximum speed, the box can attain is 16.5 m/s.

<u>Explanation:</u>

According to law of conservation of energy, energy can be transferred from one form to another. So here the spring force is converted to kinetic energy experienced by the box due to the spring.

As we know, that spring force is directly proportional to the square of the displacement and spring constant, the conservation of energy will be give

$\frac{kx^{2} }{2} =\frac{mv^{2} }{2}$

So, we know that spring constant k = 850 N/m, the displacement experienced by the spring due to compression is given as x = 0.4 m. The mass of the box is given as m = 0.5 kg and the velocity we have to find.

$v^{2} = \frac{kx^{2} }{m}$

$v^{2} = \frac{850 \times 0.4 \times 0.4}{0.5} =272 \\ \\v=\sqrt{272} =16.5\ m/s$

Thus, the maximum speed, the box can attain is 16.5 m/s.

5 0

2 years ago