Question 1 of 10

A toy car that is 0.5 ft long is used to model the actions of an actual car that

is 15 ft long. Which ratio shows the relationship between the sizes of the

model and the actual car?

When you increase the voltage of an electron beam, the radius of the beam will decrease. This is because the increased voltage causes the electrons in the beam to gain more energy, which increases their speed and therefore their momentum. As a result, the beam becomes more focused and the radius decreases.

On the other hand, when you increase the current of an electron beam, the radius of the beam will generally increase. This is because an increase in current means there are more electrons in the beam, which can lead to a more diffuse and spread-out beam. However, this effect can be mitigated by using magnetic fields to focus and shape the beam.

Learn more about electron here:

https://brainly.com/question/1255220

#SPJ11

Inelastic collision, the momentum before and after the collision and the total energy of the system remains conserved.

Answer:750

Explanation:

50 times 15

Answer:

750 j

Explanation:

I took the test in k12

Answer:

2.61

Explanation:

91.44/35=2.61257142857  or 2.61

Answer:

b

Explanation:

trust me

Answer:

Its B

Explanation:

The size of a wind system can be related to its duration or lifespan through the amount of energy it produces, the height of the turbines, and the location of the wind system. A wind system is an energy system that uses wind turbines to generate electricity.

These turbines are installed in specific areas that have consistent, strong winds, when the wind blows, it spins the blades of the turbines, which then generate electricity. The size of a wind system can be related to its lifespan in several ways:

Learn more about wind systems: https://brainly.com/question/32789561

#SPJ11

"Liouville's theorem predicts that the decrease in the spread of transverse momentum p₁ will be accompanied by a decrease in the beam radius R, as the particles become more tightly focused."

According to Liouville's theorem, if there is no external force operating on the system, the phase space density of the system is conserved as it changes over time. The phase space density, which is the density of particles in phase space, is the six-dimensional space spanned by the position and momentum coordinates of each particle in the instance of a beam of particles moving along an accelerator pipe.

The particles' spatial density rises when the beam is concentrated by electric and magnetic fields, and its radius decreases from R₀ to R. Given that the total number of particles is conserved and that the phase space density must stay constant, it follows that the spread in transverse momentum p₁ will decline.

Therefore, Liouville's theorem predicts that as the particles become more closely focused, the decrease in the spread of transverse momentum p₁ will be accompanied by a decrease in the beam radius R.

To know more about beam of particles:

https://brainly.com/question/18484480

#SPJ4

Answer:

A form of punctuation that marks the end of a sentence, statement, etc.

Explanation:

. is a period.

It can be used in a sentence, such as this one.

not sure what period you mean, but if you mean in history n stuff: it means a certain era/time something happened. like the "golden age" it's called that because it didn't last forever/ it was just a phase yknow?

The chemical formula for dinitrogen tetroxide is C) N204.

Nitrogen that exists in its diatomic form, which is also known as molecular nitrogen or nitrogen gas, is referred to as dinitrogen. This form of nitrogen has two nitrogen atoms joined by a triple covalent bond, which satisfies the Lewis electron rules by having two lone, nonbonding electron pairs, one on each Nitrogen atom.

Whereas Dinitrogen tetroxide is colourless, Nitrogen dioxide is brown. As the temperature drops, the brown color's intensity falls. As a result, a drop in temperature results in a rise in Dinitrogen tetroxide. As temperature drops, equilibrium is pushed to the Dinitrogen tetroxide side.

To know more about formula visit:-

https://brainly.com/question/29792091

#SPJ1

Answer:

Gravitational force can be seen as the pull that the earth has on an piece of matter. Everything on earth has a force acting on it which is gravity. It tries to pull two object closer to each other but never apart. The numerical value for gravitational force is 9.8 m/s^2 for free falling objects

Answer:

See below

Explanation:

A ) distance = 1/2 a t^2    <==== when starting from rest

          20    = 1/2 (a) (3.5^2)      shows a = 3.27 m/s^2

B)   Velocity(at 3.5 s)   =   a t   = 3.27 * 3.5 = 11.42 m/s

C)    3.5 seconds      +    80 m / 11.42 m/s = 10.5 s

Answer:

A force is a push or pull on an object. Forces usually cannot be seen but their effects can.

Nothing moves, changes speed, stops or changes direction without force. Heavier objects need more

force to get them to move or change direction.

Explanation:

Answer:

drop of food coloring in a glass of watercolors the water through diffusion. ... At night, however, the stomata simply remain open and CO2 enters the plant through diffusion. Flower Feathers

Explanation:

The big, soft clouds darkening as a storm approaches in the visual scene represent low spatial frequencies.

Spatial frequency refers to the rate of change of intensity or color in an image across space. It is commonly associated with the level of detail or fine-grained texture in a visual scene. In this case, the description of big, soft clouds darkening as a storm approaches suggests a decrease in fine details and a more uniform appearance, indicating a dominance of low spatial frequencies.

Low spatial frequencies correspond to large-scale variations in an image. They represent smooth and slowly changing features such as broad contours, large objects, and overall patterns. In the context of clouds, low spatial frequencies would capture the overall shape, size, and general structure of the cloud masses as they darken before a storm.

The darkening of the clouds may result from increased cloud thickness or the presence of rain or other atmospheric conditions associated with a storm. These factors can reduce the amount of light scattering through the cloud, resulting in decreased brightness and contrast, which further emphasizes the low-frequency content in the visual scene.

Know more about rain here:

https://brainly.com/question/14454151

#SPJ11

The video and the chapter reinforced the importance of listening. which of the following was not included in the text as a factor that complicates the listening process

External Noise: Background noise or distractions in the environment can make it difficult to focus on and comprehend spoken information.

Psychological Factors: Personal biases, preconceptions, and emotional states can influence how well we listen and interpret what is being said.

Lack of Attention: Inattentiveness or a wandering mind can hinder effective listening and comprehension.

Language Barriers: If the listener is not fluent in the language being spoken or if there are differences in accents or dialects, understanding can be challenging.

Cultural Differences: Different cultural norms and communication styles can impact understanding and interpretation of spoken messages.

Information Overload: When presented with a large amount of information or complex concepts, it can be challenging to process and retain all the details.

Physical Barriers: Hearing impairments or other physical limitations can impede the ability to accurately receive and interpret spoken information.

To know more about factor refer here:

https://brainly.com/question/14452738#

#SPJ11

Answer

A. a car coming to a stop at a traffic light

vf² = vi² + 2.a.d

0 = 26 + 2.(-6.7).d

13.4d = 26

d = 1.94 m

Answer:

Output varies

Explanation:

Here the outputs of gallons of gasoline and flight fuel is mentioned of two refineries namely Refinery EM and Refinery CG. The output has been mentioned with respect to one barrel of crude oil. So, one barrel of crude is used by both the refineries.

So, here the output (gallons of gasoline and flight fuel) varies while the input (one barrel of crude oil) remains constant.

Answer:

A chemical change occurred, so even if Cash heats it, the white solid will remain

Explanation:

There are two types of changes that occur in Chemistry viz; physical change and chemical change. Physical changes are those changes do not involve any change in the chemical composition of the substances involved while a chemical change involves a change in chemical composition.

In a chemical change, there are characteristics signs such as formation of gaseous bubbles, solid precipitates etc. as the information in this question depicts. According to this question, Cash mixes two clear liquids together which results in the formation of bubbles and a white solid that settles at the bottom. Hence, THIS REPRESENTS A CHEMICAL CHANGE

Most chemical changes are usually irreversible i.e. they don't return to their original form. Hence, even if Cash heats it, the white solid will remain.

Answer:

A chemical change occurred, so even if Cash heats it, the white solid will remain

Answer:

40,000 meters

Explanation:

We want to find how far the car travels, or the distance. Therefore, we can use the following formula:

\(d= s*t\)

where \(s\) is the speed and \(t\) is the time

The speed of the car is 40 meters per second and the time is 1000 seconds. Therefore,

\(s= 40 m/s*\\t=1000s\)

Substitute the values into the formula.

\(d= 40 m/s * 1000s\)

Multiply. When you multiply, the 2 "s" variables will cancel out.

\(d= (40 m*1000)\)

\(d= 40,000 m\)

The distance traveled by the car is 40,000 meters.

The term describes the cyclical motion of an object about an equilibrium point is vibration. The correct option is A.

Vibration is a term used to describe the cyclical motion of an object about an equilibrium point. It is the repetitive back-and-forth or up-and-down motion of an object or system about a reference point or position of rest.

The frequency of the vibration determines how many cycles occur per unit of time, while the amplitude describes the extent of the oscillation or the distance from the equilibrium position to the maximum displacement.

Phase refers to the relationship between two waves or oscillations with respect to their timing or displacement at a given point in time, while phase shift refers to a change in the timing or displacement of a wave or oscillation relative to another wave or oscillation.

To know more about vibration follow

https://brainly.com/question/14305080

#SPJ4

Answer:

180 because it's half of a full rotation before they shoot the other person.

Answer:

The speed of individual particle diffusion is influenced by temperature and particle size, not by concentration

Explanation:

Answer:

The value is \(v = 24.5 \ m/s \)

Explanation:

Generally from kinematic equation we have that

\(v = u + at\)

Here u is equal to zero given that the batch was at rest

a is equal to the g which has a value \(g = 9.8\ m/s^2\)

and  t  is  2.5 \  s  

So

          \(v  =  0 + 9.8 *  2.5 \)

\(v = 24.5 \ m/s \)

a)

The distance travelled in the first 3 seconds is 6 meters.

b.)

the total distance travelled is 13 meters.

c.)

the acceleration in the time interval from 4 seconds to 7 seconds is 0.67 m/s^2.

distance = speed × time

distance = 2 m/s × 3 s = 6 meters

b)

The distance travelled in the first 3 seconds=  6 meters.

The distance travelled from 3 seconds to 7 seconds, which can be found by finding the area under the trapezium formed by the line joining (3, 2) and (7, 4), the x-axis and the vertical lines at x=3 and x=7.

The height of the trapezium is (4 - 2) m/s = 2 m/s, and the two bases are 4 s - 3 s = 1 s and 7 s - 3 s = 4 s, respectively.

the area of the trapezium is:

area = (1/2) × (1 + 4) s × 2 m/s = 7 meters

The total distance travelled is therefore:

total distance = distance travelled in the first 3 seconds + distance travelled from 3 seconds to 7 seconds

total distance = 6 meters + 7 meters = 13 meters

c)

change in speed = final speed - initial speed

At t=4 s, t speed is 2 m/s,

and at t=7 s,  speed is 4 m/s.

change in speed = 4 m/s - 2 m/s = 2 m/s

The time interval is:

time interval = 7 s - 4 s = 3 s

acceleration = change in speed / time interval

acceleration = 2 m/s / 3 s = 0.67 m/s^2

Learn more about acceleration at: https://brainly.com/question/460763

#SPJ1

Answer:

30 J

Explanation:

height = 3 m

mass = 1kg

acceleration due to gravity = 10m/s²

Potential Energy = mass× gravity × height

= 1kg ×10m/s²× 3m

= 30 J

To calculate the Taguchi quality cost, we need to multiply the length of each piece by the Taguchi parameter T, and then sum up the costs.

Given:

Length of the first metal rod = 49.19 cm

Length of the second metal rod = 49.93 cm

a) Taguchi parameter T:

Since we don't have the specific value of T, we cannot calculate it.

b) Taguchi Quality Cost of the second metal rod:

Taguchi Quality Cost = Length of the second metal rod * Taguchi parameter T

c) Taguchi Quality Cost of the first metal rod:

Taguchi Quality Cost = Length of the first metal rod * Taguchi parameter T

d) Total Taguchi Quality Cost of the two units:

Total Taguchi Quality Cost = Taguchi Quality Cost of the first metal rod + Taguchi Quality Cost of the second metal rod

Since we don't have the Taguchi parameter T, we cannot calculate the specific values for parts (b), (c), and (d).

To learn about the length, click here:
brainly.com/question/28039799
#SPJ11

Answer:

24k

Explanation:

We multiply by 200V by 24