A scientist analyzes the light from a distant galaxy and finds that it is shifted to the longer wavelength of the electromagnetic spectrum. What does this data help to study?
1) the color of the galaxy
2) the distance of the galaxy from Earth
3) the existence of life on any planet in the galaxy
4) the study of the amount of light scattered by dust in space

Answer:

decomposition

Explanation:

Answer:

B) mass of pendulum bob

The option that is not one of the three forces responsible for different rock fragments sticking together is known as static electricity. Thus, the correct option for this question is D.

Rock fragmentation may be characterized as a type of mechanism through which extremely large rocks can be fragmented into smaller pieces with the help of various forces and mechanisms like weathering.

According to the context of this question, nuclear force, gravity, and frictional force are responsible for facilitating the mechanism of weathering through which large rocks can be fragmented into smaller pieces.

Therefore, the option that is not one of the three forces responsible for different rock fragments sticking together is known as static electricity. Thus, the correct option for this question is D.

To learn more about Rock fragmentation, refer to the link:

https://brainly.com/question/11181970

#SPJ1

Answer:

f = 3.09 Hz

Explanation:

This is a simple harmonic motion exercise where the angular velocity is

         w² = \(\frac{k}{m}\)

to find the constant (k) of the spring, we use Hooke's law with the initial data

         F = - kx

where the force is the weight of the body that is hanging

        F = W = m g

we substitute

        m g = - k x

        k = \(- \frac{m g}{x}\)

we calculate

        k = \(- \frac{9.8 m}{- 2.6 \ 10^{-2}}\)

        k = 3.769 10² m

we substitute in the first equation

       w² = \(\frac{ 3.769 \ 10^2 \ m }{m}\)

       w = 19.415 rad / s

angular velocity and frequency are related

       w = 2πf

        f = \(\frac{w}{2\pi }\)

        f = 19.415 / 2pi

        f = 3.09 Hz

The region with high electric potential  (80 V and 70 V) will have high electric field while the region with low electric potential (20 V) will have low electric field.

Electric field is the field that surrounds electrically charged particles and exerts force on all other charged particles in the field.

E = V/d

where;

Since electric field is directly proportional to electric potential, the region with high electric potential  (80 V and 70 V) will have high electric field while the region with low electric potential (20 V) will have low electric field.

Learn more about electric field and electric potential here: https://brainly.com/question/24317284

Answer:

Explanation:

Sure, I'd be happy to help you with the question!

Let's denote the input as x. According to the function machine, the input is multiplied by 6 and then 80 is subtracted from the result to obtain the output.

So, the function can be written as:

Output = (6 * x) - 80

Now, the problem states that the input is the same as the output. Therefore, we can set up the equation:

x = (6 * x) - 80

Let's solve this equation to find the value of x:

x = 6x - 80

Subtracting 6x from both sides, we get:

x - 6x = -80

Combining like terms, we have:

-5x = -80

Dividing both sides by -5, we find:

x = (-80) / (-5)

Simplifying the expression, we have:

x = 16

Therefore, the input (x) that results in the input being the same as the output is 16.

To work out these types of questions, it's important to carefully read the instructions and understand the operations being performed in the function machine. Then, you can set up an equation with the input and output, and solve for the unknown value. Always double-check your solution to ensure it satisfies the given conditions of the problem.

Answer:

16

Explanation:

(x*6) - 80 = x

Multiply the parentheses

6x - 80 = x
Add 80 to each side to get
6x = x + 80
Subtract x from both sides to get
5x = 80
Divide both sides by 5
x = 16

The element used is of bronze.

Now before we find out how we got the answer as bronze, firstly let us understand about the device we are talking about. That is, spring.

What exactly is a spring?

A spring is defined as a device that changes its shape in response to an external force, returning to its original shape when the force is removed. If we apply force or pressure in this device, it will change its shape but the moment we stop applying force, it will come back to its original state.

This means that this device is made of something flexible. So, the material it is made up of should also be flexible in nature.

How to find out flexibility of spring?

Flexibility of spring can be found as q = f Q, where f is the spring flexibility.

Here, in this question, we are given the mass of element in air and water. This shows a slight comparison between the mass of that particular element in air and water and thus, we get to know it is trying to draw our attention towards density.

Here, we have mass in air and water, thus, we can determine the density.

From these numbers, we can know that the density given is of bronze.

Hence, the element used is Bronze.

To know more spring aggregate, refer : https://brainly.com/question/20215636

#SPJ4

The change in the electrical potential energy is -3.78 × 10⁻¹⁸ J.

The electrical potential energy of a point charge in an electric field is given by:

ΔU = qΔV

where;

The electric potential is defined as the electric potential energy per unit charge, so we can also express this as:

ΔU = q(Vf - Vi)

where;

In this case, we are given the distance moved by an electron in an electric field and the strength of the electric field. We can use the formula for electric potential to find the change in potential energy:

ΔV = Ed

where;

Plugging in the given values, we get:

ΔV = (525 N/C)(0.045 m) = 23.625 Nm/C

To find the change in potential energy, we need to know the charge of the electron. The charge of an electron is -1.6 × 10⁻¹⁹ C.

Therefore, we can calculate the change in potential energy as:

ΔU = qΔV = (-1.6 × 10⁻¹⁹ C)(2362.5 Nm/C)

 = -3.78 × 10⁻¹⁸ J

Note that the negative sign indicates a decrease in potential energy, which makes sense since the electron is moving in the direction of the electric field.

Learn more about electric potential energy here: https://brainly.com/question/14306881

#SPJ1

Answer:

Explanation:

a) The position of the particle at t=2sec

X=12t² -2t³ = 12*2² -2*2³=48-16=32m

b)velocity of particle = dx/dt=24t-6t²

velocity of particle at t=3sec is 24*3-6*3² =72-54=18 m/s

Acceleration = dv/dt = 24-12t

acceleration at t=3sec is 24-12(3)= -12 m/s²

Answer:

velocity and acceleration are zero.​

When a ball is thrown exactly straight up in the air, at its highest point, velocity and acceleration are zero.​

This is because, at the ball's highest point, the ball is not moving in any direction meaning the vector quantity (direction and magnitude) is zero for both velocity and acceleration.

Answer:

it's a reference that relates to the personal experience of her listeners.

Explanation:

A photon is a tiny energy packet of electromagnetic radiation, also referred to as a light quantum.

1) Ultraviolet radiation is commonly used in sanitizing hospitals because, viruses, methicillin-resistant Staphylococcus aureus, and vancomycin-resistant enterococci are all susceptible to the germicidal effects of UV-C.

2) According to the photon theory, electrons that have been stimulated return to the ground state to create atomic emission spectra. Light or the photon is the energy that is released when electrons drop to a lower energy level.

3) To characterise the atomic characteristics of light, Albert Einstein used Planck's quantum theory.

Planck's hypothesis is supported by Einstein's demonstration that electromagnetic radiation, such as light, has both wave-like and particle-like properties.

To learn more about photons, click:

https://brainly.com/question/29038909

#SPJ1

Joule (J). This is the fundamental energy unit of the metric system, or the International System of Units in a later, more thorough version (SI).

The SI unit of energy, the joule (J), was created in honour of James Prescott Joule and his research on the mechanical equivalent of heat since energy is defined through labour. In terms of SI base units, 1 joule is equivalent to 1-newton metre and, in slightly more basic words.

Potential energy, which can be calculated using the formula P.E. = mgh. Unit is the energy that an object has stored due to its position and height. Joules is the SI unit for energy (J).

to know more about unit(s) here:

brainly.com/question/30391716

#SPJ1

Answer:

3.5 m/s

Explanation:

Answer: 529.9 Hz

Explanation:

Here we need to use the Doppler equation, so we have:

f' = f*(v + v0)/(v - vs)

Here, f is the frequency = 500Hz

v is the velocity of the wave, = 334m/s

v0 is the velocity of the observer = 20m/s

vs is the velocity of the source = 0m/s

Then we have:

f' = 500Hz*(334m/s + 20m/s)/(334m/s) = 529.9 Hz

ANSWER:

75.8 miles per hour, 83.3°

STEP-BY-STEP EXPLANATION:

Given:

Plane velocity is 350 mi/hr N70E° (90 - 70 = 20°)

Ground velocity is 390 mi/hr, 30°

The ground velocity is the magnitude V + W, just like this:

We know that for V it would be:

Therefore:

We calculate the magnitude using the norm of the vector, like this:

The speed of wind is 75.8 miles per hour

We calculate the direction of the angle as follows:

The direction angle of the wind is 83.3°

A ray diagram with given information gives an image location of 10.7 cm on the ruler. This method helps determine characteristics of images formed by lenses.

To build a beam graph to decide the picture area, we first need to draw an outline with the given data. We start by defining an upward boundary to address the focal point, with the ruler and the dark spot on one or the other side of it. We then, at that point, draw a bolt on the left half of the focal point at the 3.0 cm mark.

Then, we draw three beams from the bolt. The primary beam is attracted lined up with the important pivot and goes through the point of convergence on the right half of the focal point.

The subsequent beam goes through the focal point of the focal point and go on in an orderly fashion. The third beam goes through the point of convergence on the left half of the focal point and becomes lined up with the essential pivot subsequent to going from the perspective.

Where these three beams cross on the right half of the focal point is the picture area. For this situation, the beams converge at a point situated at 10.7 cm on the ruler, which is the response to the inquiry. Thusly, the picture is situated at 10.7 cm on the ruler.

This strategy for developing a beam graph is a valuable apparatus in deciding the area and qualities of pictures shaped by focal points, and is a significant idea in the investigation of optics.

To learn more about lens, refer:

https://brainly.com/question/13148383

#SPJ1

Option C. The heat absorbed or lost by a substance while it's changing state  correctly describes latent heat

Latent heat is the heat absorbed or lost by a substance while it is changing state.

The latent heat is a type of heat that is transferred during phase change, i.e., while a substance undergoes a change of state.

For example, when ice melts into liquid water, or when liquid water evaporates into water vapor, heat is absorbed from the surroundings.

Latent heat is not associated with a temperature change; rather, it's associated with a change of state.

For instance, the temperature of water remains at 100°C while boiling.

When water is boiling, the latent heat of vaporization is absorbed and utilized to break the hydrogen bonds holding water molecules together to change water from the liquid phase to the gaseous phase.

When the water is boiling, adding more heat won't increase the water's temperature, instead, the extra heat will be absorbed to change the phase of water molecules.

Therefore, the correct answer to the given question is option C: The heat absorbed or lost by a substance while it is changing state.

For more questions on latent heat

https://brainly.com/question/10765874

#SPJ8

The change in motion, visible effects of the collision, and temperature increase would all serve as evidence that energy was transferred during the collision between the cart and the track after the removal of electrostatic forces.

If the electrostatic forces on the cart and track were suddenly removed and the cart hits the track, there would be several pieces of evidence indicating that energy was transferred during the collision.Firstly, there would be a noticeable change in the motion of the cart. The cart would decelerate as it collides with the track, and its velocity would decrease due to the loss of energy. This change in motion demonstrates that energy has been transferred from the cart to the track.

Secondly, there may be visible effects of the collision, such as deformation or damage to the cart or the track. This deformation or damage occurs because the energy transferred during the collision is transformed into other forms, such as heat or sound energy. These visible effects provide evidence of energy transfer.Additionally, there could be an increase in the temperature of the cart and/or the track due to the conversion of kinetic energy into thermal energy upon impact. This temperature change would be another indication that energy has been transferred.

for such more questions on electrostatic

https://brainly.com/question/17692887

#SPJ8

The energy released when 10 g of steam is spilled on the hand is approximately 25 kJ

The heat required to raise the temperature of 10 g of water from 33 °C to 100 °C is

Q₁ = m x c x ΔT

= 10 g * 4.2 * (100 °C - 33 °C)

= 2772 J

The heat required to vaporize 10 g of water at 100 °C is given by:

Q₂ = m x L

= 10 * 2.2

= 22,000 J

where L is the specific latent heat of vaporization of water

The total energy released

Q = Q1 + Q2

= 2772 J + 22,000 J

= 24,772 J

Learn more about specific heat capacity at

https://brainly.com/question/27991746

#SPJ1

Answer:

Ok I may not be correct but I figured I should practice for physics. Given that a=5 m/s^2, t=5 s, v_0=0, we want to find the final velocity. I would think that the equation v=v_0+a*t would work best, and plugging the numbers in, v=0+(5)(5) your answer for the final velocity would be 25 m/s.

Explanation:

This statement about perception is true.

perceive: the input from our environment, sight, sound, taste, touch, temperature…we perceive the external inputs and process them to the best of our conscious abilities.

You mention thinking. Let's broaden that out a bit. Call it conceive: the internal abilities we both process perception and create with. Thinking, emotions, imagination, curiosity, learning, organizing, even fear are all conceiving attributes. This is the wonder and the horror of our species. We are homo sapiens. We are aware of ourselves, all that we perceive we and all that we conceive. More than thinking, much more. Be well.

perception involves the senses, whereas thought involves reasoning.

However, these two categories overlap, since they cannot function

apart, but only together. (As Kant quipped, “intuition without concepts

is blind, concepts without intuitions are empty.” By ‘intuition’ he meant

sense-perception, not some mystical insight into the universe.

To know more about perception click-

https://brainly.com/question/27230467

#SPJ9

Answer:

I agree with student 1

Explanation:

This is because, the magnitude of the gravitational force on both Earth and Moon depends on the product of their masses. Also, both Earth and Moon exert the same force but in opposite directions.

Student 2 is wrong because the gravitational force is the only force acting between the Earth and Moon, and from Newton's third law, it follows an action-reaction pair. But, student 2 got it wrong in the sense that the magnitude of the action and reaction forces are the same and are equal to the gravitational force.

So, the gravitational force acting on each object is the same and doesn't vary for each mass.  

We should agree with the student 1.

This is to be done due to the magnitude of the force since earth and moon should be based on the masses' product. Moreover, the earth and moon exert a similar force but that should be in inverse directions. Here student 2 should be wrong because the gravitational force is that force that acted between the earth and moon. Based on this, we can say that it should be acted on each object when it is the same also it should not be changed for every mass.

Learn more about newton here: https://brainly.com/question/14379797

I have not. Have you??

According to the given statement:

I) acceleration a=2m/s²

ii) deceleration a=−1  m/s²

iii) the distance travelled =200  m.

Velocity's rate of change with time, in both terms of speed and direction. A point or object moving straight ahead is accelerated when it increases or decelerates. Even if the speed remains constant, motion on the a circle increases because the orientation is always shifting.

Briefing:

You use the standard formulas for distance as a function of speed, acceleration and time:

st = v0t + 0.10at²  for acceleration ( a >0) and deceleration ( a <0), or at constant speed ( a =0).

Now  a  is not given for acceleration and deceleration, so we need to compute this from

vt=v₀+at

Acceleration:  

20=10a⟹a=2m/s²

Distance travelled:  

0.10∗10∗10²=100  m

Distance travelled while at constant speed:

s=vt=20∗20=400  m

Deceleration:  

0=20+20a⟺a=−1  m/s²

Distance travelled:

20∗20+0.1(−1)20²=400−2∗100

=200  m.

So the total distance travelled is  100+400+200=700m

To know more about acceleration visit:

https://brainly.com/question/12550364

#SPJ9

The student's final position is 74.4 meters at an angle of 14.3° north of east from her initial position.

To find the student's final position, can be broken each of her three walks into its x- and y-components. The x-component of a walk is the distance traveled in the east-west direction, and the y-component is the distance traveled in the north-south direction.

The x-component of the first walk is 70 cos(37°) = 56.3 meters. The y-component of the first walk is 70 sin(37°) = 45.6 meters.

The x-component of the second walk is 82 cos(20°) = 77.2 meters. The y-component of the second walk is 82 sin(20°) = 27.4 meters.

The x-component of the third walk is 28 cos(30°) = 24.2 meters. The y-component of the third walk is 28 sin(30°) = 14.0 meters.

To find the total x-displacement, add the x-components of the three walks: 56.3 + 77.2 + 24.2 = 157.7 meters.

To find the total y-displacement, add the y-components of the three walks: 45.6 + 27.4 + 14.0 = 87.0 meters.

To find the magnitude of the student's final displacement, use the Pythagorean theorem:

d = √((157.7)² + (87.0)²) = 174.4 meters

To find the direction of the student's final displacement, use the inverse tangent function:

θ = arctan 87.0/157.7 = 14.3°

The student's final position is 174.4 meters at an angle of 14.3° north of east from her initial position.

Find out more on direction here: https://brainly.com/question/29248951

#SPJ1

Answer:

The answer is D

Explanation:

The chloroplast absorbs sunlight for energy not the cell wall