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1 year ago

Select the option that best summarizes the reason for the use of position-time graphs when studying physical science. (1 point)

Physics

2 answers:

wlad13 [49]1 year ago

5 0

<h2>====================================</h2><h2>Position, Distance, and Displacement</h2>

========================================================

Hello! Lets begin!

1. Which answer best describes displacement?

A) Displacement is a vector quality showing total length of an area traveled by a particular object.

2. Kelley is playing pool and hits the cue into the nine ball, which is directly in the center of the pool table. The nine ball travels a total of 7 meters before stopping, 1 meter to the left of the initial starting point of the nine ball. Which sentence reflects the correct statement regarding distance and displacement when considering the motion of the nine ball?

D) The nine ball traveled a distance of 7 meters and was displaced by 1 meter.

3. What is velocity?

B) Velocity is a vector quantity that tells the distance an object has traveled over a period of time.

4. Imagine a time-position graph where the velocity of an object is constant. What will be observed on the graph concerning the slope of the line segment as well as the velocity of the object?

C) The slope of the line is equal to zero and the object will be stationary.

5. Select the option that best summarizes the reason for the use of position-time graphs when studying physical science.

B) The position-time graphs show the relationship between the position of an object (shown on the y-axis) and the time (shown on the x-axis) to show velocity.

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Good luck my peeps! ;D

Sedaia [141]1 year ago

4 0

The position-time graphs show the relationship between the position of an object (shown on the y-axis) and the time (shown on the x-axis) to show velocity.

<h3>What is velocity?</h3>

Velocity is a vector quantity that tells the distance an object has traveled over a period of time.

Displacement is a vector quality showing total length of an area traveled by a particular object.

Imagine a time-position graph where the velocity of an object is constant. What will be observed on the graph concerning the slope of the line segment as well as the velocity of the object?

The slope of the line is equal to zero and the object will be stationary.

The position-time graphs show the relationship between the position of an object (shown on the y-axis) and the time (shown on the x-axis) to show velocity.

To learn more about velocity refer to the link

brainly.com/question/18084516

#SPJ2

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What is the energy of light that must be absorbed by a hydrogen atom to transition an electron from n = 3 to n = 5?

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Answer:

The energy absorbed by a hydrogen atom is 1.549 X10⁻¹⁹ J

Explanation:

Using Bohr's equation; the energy absorbed by the hydrogen atom can be calculated as follows:

$\delta E = (\frac{1}{n_2{^2}} -\frac{1}{n_1^{2}})13.6eV$

When an electron moves from a lower energy level to a higher energy level, energy is absorbed by the atom.

Lower energy level (n₂) = 3

Higher energy level (n₁) = 5

1 eV = 1.602X10⁻¹⁹ C

$\delta E = (\frac{1}{3{^2}} -\frac{1}{5^{2}})13.6X1.602X10^{-19}$

ΔE = 1.549 X10⁻¹⁹J

The energy absorbed by a hydrogen atom to transition an electron from n = 3 to n = 5 is 1.549 X10⁻¹⁹ J

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3 years ago

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Answer:

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4 years ago

Two men are standing on a frictionless ice surface holding opposite ends of a rope. One man (mass = 80 kg) pulls on the rope wit

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Answer:

The acceleration of man 1 and 2 is $3.125\ m/s^2$ and $4.167\ m/s^2$ .

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Mass of man 1, m₁ = 80 kg

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Let a₁ is acceleration of man 1,

F = m₁a₁

$a_1=\dfrac{F}{m_1}\\\\a_1=\dfrac{250}{80}\\\\a_1=3.125\ m/s^2$

Let a₂ is acceleration of man 1,

F = m₂a₂

$a_2=\dfrac{F}{m_2}\\\\a_2=\dfrac{250}{60}\\\\a_2=4.167\ m/s^2$

So, the acceleration of man 1 and 2 is $3.125\ m/s^2$ and $4.167\ m/s^2$ .

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