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irina1246 [14]
3 years ago
8

Which of the following is not a function of PACs?

Physics
2 answers:
Katena32 [7]3 years ago
5 0

Answer:

i think D

hope this helps

let me know if i'm wrong i will change the answer

Explanation:

Natasha_Volkova [10]3 years ago
3 0
It is definitely D.
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My question is about pressure. Atmospheric pressure on the surface of Venus is 90 times larger than on Earth. On Mars it is 100
Brrunno [24]
It's high because Venus atmospheric mass is about 93 times that of Earth.
8 0
3 years ago
I think these two are simple questions.. but I need help asap..... TT
frosja888 [35]

1) The average velocity is 56 m/min

2) The average velocity is -83 m/min

Explanation:

1)

The average velocity of an object is given by

v=\frac{d}{t}

where

d is the displacement (change in position)

t is the time elapsed

In the graph in the problem, the displacement corresponds to the distance, therefore to the change in the y-variable (\Delta y), while the time elapsed is the change in the x-variable (\Delta x), so the average velocity can be written as

v=\frac{\Delta y}{\Delta x}

At point A, we have:

y_A = 5 m\\x_A = 0.1 min

At point B, we have:

y_E = 55 m\\x_A = 1 min

So, we have

\Delta y= 55 -5 = 50 m\\\Delta x = 1.0-0.1 = 0.9 min

So the average velocity is

v=\frac{50 m}{0.9 min}=56 m/min

2)

In this part instead, we have the following:

At point F, we have:

y_F = 55 m\\x_A = 1.3 min

At point H, we have:

y_H = 30 m\\x_A = 1.6 min

So, we have

\Delta y= 30 -55 = -25 m\\\Delta x = 1.6-1.3 = 0.3 min

So the average velocity is

v=\frac{-25 m}{0.3 min}=-83 m/min

Learn more about velocity:

brainly.com/question/8893949

brainly.com/question/5063905

#LearnwithBrainly

4 0
2 years ago
Between a piece of paper and a rock, which will fall the fastest and why?
AysviL [449]

Answer:

The Rock

Explanation:

The paper is very thin and light so it has more air reisistance which will cause it to fall slower than the rock that has a larger density.

7 0
3 years ago
8. An ant on a picnic table travels 30 cm eastward, then 25 cm northward, and finally 15 cm westward. What is the ant's displace
wel

Answer:

The displacement of the ant, R = 29.15 cm

The angle of the resultant displacement with its original position is, θ = 30° 57'

The direction of the displacement is towards the northeast.  

Explanation:

Given data,

The displacement towards east, d₁ = 30 cm

The displacement towards north, d₂ = 25 cm

The displacement towards  west, d₃ = 15 cm

The total displacement towards east,

                                       d₄ = d₁ - d₃

                                           = 30 - 15

                                           = 15 cm

The total displacement of ant is given by the resultant displacement,

                            R = √(d₂² + d₄² + 2· d₂ d₄ CosФ)

Where Ф is the angle between the vectors, d₂ & d₄

                                                Ф = 90°

Therefore,

                               R = √(d₂² + d₄²)

Substituting in the above equation,

                               R = √(25² + 15²)

                                  = 29.15 cm

Hence, the displacement of the ant, R = 29.15 cm

The angle of the resultant displacement with its original position is,

                                θ = tan⁻¹ (d₄ / d₂)

                                   = tan⁻¹ (15 / 25)

                                   = tan⁻¹ 0.6

                                   = 30° 57'

Hence, the angle of the resultant displacement the its original position is, θ = 30° 57'

The direction of the displacement is towards the northeast.                                            

5 0
3 years ago
Who is the scientist that gave us the photon as a way of describing light as a particle?
Montano1993 [528]

Answer: Albert Einstein

Explanation:

Light can be considered as a wave or as particles, in this context Einstein proposed that light behaves like a stream of particles called <u>photons</u> with an energy, in order to correctly explain the photoelectric effect (in fact he won the 1921 Nobel Prize in Physics because of this explanation).

To uderstand it better:

The photoelectric effect is a fenomenom that consists in the emission of electrons that occurs when light falls on a metal surface under certain conditions.

This  can only be explained based on the corpuscular model of light, that is, light is quantized.

So, Einstein theorized light as a stream of energy packets called photons, this energy is able to pull an electron out of the crystalline lattice of the metal and communicate, in addition, a kinetic energy.

4 0
3 years ago
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