what is the source of the waves

Answer:

[See Below]

Explanation:

Your average speed would be 204.35 mph.

Answer:

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Explanation:

Some starburst galaxies are much brighter in infrared radiation than they are in visible light because the dust surrounding the galaxies warms up and emits infrared light after absorbing visible light. Because of this, starburst galaxies produce up to 98% of their total energy in the infrared, making them some of the brightest infrared objects in the cosmos.

A sort of radiant energy that we experience as heat but that is invisible to human eyes is infrared radiation (IR), often known as infrared light. The sun and fire are two of the most prominent sources of IR radiation, however all objects in the cosmos release some of it.

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When the low temperature reservoir has its temperature lowered in an ideal heat engine, the engine efficiency increases. The correct answer is (D).

Here's a step-by-step explanation:

1. The efficiency of a heat engine is determined by the temperatures of the high and low temperature reservoirs. The formula for the efficiency of an ideal heat engine, based on the Carnot cycle, is given by:

Efficiency = 1 - (T_low / T_high)

where T_low is the temperature of the low temperature reservoir and T_high is the temperature of the high temperature reservoir.

2. When the temperature of the low temperature reservoir (T_low) is lowered, the ratio (T_low / T_high) becomes smaller.

3. As a result, the value inside the parentheses (1 - ratio) increases, which means the overall efficiency of the heat engine increases.

So, with the temperature of the low temperature reservoir lowered and no other changes made, (D) the efficiency of the ideal heat engine increases.

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Answer:

They get air inside

Explanation:

bananas turn brown when air is inside

Answer:

i think 53 or 56

Explanation:

cause i cross multiplied and got that

Answer :

He had 300 more nickels than dimes in the end

Explanation:

The ratio of dimes and nickels has changed to 6:21; we have known this son that is 540 dimes and nickels together the. We can make a proportion difference/sum=15/27= difference/540. By cross multiplying, difference=15 x 540  divided by  27= 300

Which gives us the answer that he had 300 mor nickels than dimes in the end.

No , frequency of a wave is not distance between waves, it is called wavelength.

Frequency is the number of waves that pass a particular point in a given period of time. It is typically measured in Hertz (Hz), which is the number of waves per second. Wavelength, on the other hand, is the distance between two consecutive crests or troughs of a wave. It is typically measured in meters (m). So frequency and wavelength are related, but they are not the same thing. Frequency is a measure of the number of waves, while wavelength is a measure of the distance between waves.

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Answer:

C. to apply lasers to precision measurements of the nucleus

Explanation:

Magnetic resonance imaging (MRI) is based on the principles of nuclear magnetic resonance (NMR), a spectroscopic technique used to obtain microscopic chemical and physical information about molecules.

Answer:

\(16 * 10^{-7}\) F

Explanation:

The ability of a capacitor to store an electric charge (Q) per unit of voltage (V) across its plates of a capacitor is called capacitance. SI unit of capacitance is Farad.

It can be measured by using the formula C=Q/V.

Q = 4.0 x 10^-10 C

V = 250.0 V

C = Q / V

   = \(\frac{4.0 * 10^{-10} }{250}\)

   = \(16 * 10^{-7}\) F

Hence, the capacitance is \(16 * 10^{-7}\) F.

Answer:

Explanation:

1.6 X 10^-12 F

Answer:

-8m/s2

Explanation:

it decelerate. initial velocity u=50m/s and final velocity v= 10m/s and the time t= 5s

using this equation v= u+at

a= v-u/t= 10-50/5=-40/5= -8m/s2

Answer:

\( \boxed{\sf Acceleration \ (a) = -8 \ m/s^2} \)

Given:

Initial velocity (u) = 50 m/s

Final velocity (v) = 10 m/s

Time taken (t) = 5 seconds

To Find:

Acceleration (a) of the car

Explanation:

From equation of motion we have:

\( \boxed{ \bold{v = u + at}}\)

By substituting value of v, u & t in the equation we get:

\( \sf \implies 10 = 50 + 5a \\ \\ \sf \implies 5a + 50 = 10 \\ \\ \sf \implies 5a = 10 - 50 \\ \\ \sf \implies 5a = - 40 \\ \\ \sf \implies a = - \frac{40}{5} \\ \\ \sf \implies a = - 8 \: m {s}^{ - 2} \)

\( \therefore\)

Acceleration (a) of the car = -8 m/s²

A) water medium is usually used for determining the refractive index.

In physics, refraction is the direction change brought on by a wave's speed change as it travels through a medium. For instance, waves move more quickly in deep water than they do in shallow.

The most often investigated characteristic in the forensic analysis of glass pieces is refractive index since it is easily evaluated on the minuscule shards typically found in casework.

Glass is the ideal real-world illustration of light refraction. A glass jar will make an object appear smaller and a little elevated when viewed through it. The text on a piece of paper or a document will appear closer to the surface if a slab of glass is placed over it due to the different angle the light is bending at.

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The complete question is:

Forensic scientists immerse glass evidence into a medium to determine its refractive index. Which medium is usually used for determining the

refractive index?

A. water

B. Air

C. Gel

D. Oil

a) The isocost curve equation is G = (20000 - 100C)/500. b) The isocost curve equation is G = (30000 - 100c)/500. c) The isocost curve equation is G = (20000 - 100C)/375. d)  The isocost curve equation is G = (20000 - 120C)/500.

To draw the isocost curve showing the different combinations of gas and coal, we need to use the cost per unit values for coal and gas, as well as the given expenditure (TC) and the changes in expenditure or prices.

Let's denote the quantity of coal as C and the quantity of gas as G. The cost per unit of coal is 100, and the cost per unit of gas is 500.

(a) Initial expenditure (TC) of 20000:

To find the combinations of gas and coal that can be purchased with an initial expenditure of 20000, we can use the following isocost equation

TC = 100C + 500G

We can rearrange the equation to solve for G in terms of C

G = (TC - 100C) / 500

Now we can plot the isocost curve with TC = 20000 using the equation above.

(b) Expenditure (TC) increases by 50%

If the expenditure increases by 50%, the new expenditure (TC_new) becomes 1.5 × TC = 1.5 × 20000 = 30000.

We can use the same isocost equation as before, but with the new expenditure value:

TC_new = 100C + 500G

Rearranging the equation to solve for G

G = (TC_new - 100C) / 500

Now we can plot the isocost curve with TC_new = 30000.

(c) Gas price reduced by 25%:

If the gas price is reduced by 25%, the new cost per unit of gas (Gas_new) becomes 0.75 × 500 = 375.

We can use the original isocost equation, but with the new cost per unit value:

TC = 100C + 375G

Rearranging the equation to solve for G

G = (TC - 100C) / 375

Now we can plot the isocost curve with the reduced gas price.

(d) Coal price rises by 20%

If the coal price rises by 20%, the new cost per unit of coal (Coal_new) becomes 1.2 × 100 = 120.

We can use the original isocost equation, but with the new cost per unit value:

TC = 120C + 500G

Rearranging the equation to solve for G:

G = (TC - 120C) / 500

Now we can plot the isocost curve with the increased coal price.

By plotting these isocost curves on a graph with G on the y-axis and C on the x-axis, we can visualize the different combinations of gas and coal that can be purchased at the given expenditures or price changes.

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Answer:

Travels through solid materials, and air.... but it can also travel through the vacuum of space

Explanation:

The macro scale look of the lake is determined by water molecules.

The macro scale refers to the broad scale motion of the gas, while the micro scale refers to individual molecule movements.

The macroscale is defined as geometry on the order of millimeters and beyond, whereas the microscale is concerned with length scales down to the micrometer range.

The biggest circulation patterns in the earth's lower atmosphere are represented by macroscale winds. These wind patterns can endure from days to months and span distances of hundreds to thousands of kilometers.

The jet stream and trade winds are two examples of planetary scale wind patterns.

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Full Question:

Although part of your question is missing, you might be referring to this full question:

How can the change that the molecular scale affect the Lakes Macro scale appearance

Answer:

v = 0.0251 km/h

Explanation:

Given that,

The average distance from its center of mass of 1000 meters.

The time taken is  24 hours and 57 minutes to complete one orbit

We need to find the orbital velocity of the spacecraft OSIRIS-REx.Let it is v. SO,

\(v=\dfrac{2\pi r}{t}\)

Putting all the values,

\(v=\dfrac{2\pi \times 100}{24\ hours\ and\ 57\ minutes}\\\\v=\dfrac{2\pi \times 100}{(86400+3420)}\\\\v=0.00699\ m/s\)

or

v = 0.0251 km/h

So, the average orbital velocity is 0.0251 km/h.

Answer:

What is c and v

Explanation:

Answer:

96.2

Explanation:

I got it right on Acellus

The scientist that described an atom made a solid positively charged substance with electrons dispersed throughout it was Ernest Rutherford.

In 1911 Ernest Rutherford proposed his atomic model in which he considered the atom as a positively, densely charged center called a nucleus in which the electrons circulate around the core with a negative charge.

The atom is the smallest part of the composition of matter, it is indivisible and is composed of a nucleus that has protons and neutrons, and around the nucleus there are the electrons.

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Answer:

20W

Explanation:

As P = W/t

P = FS/

P = 20x5/5

= 100/5

=20J/s or W

therefore, P = 20W

The maximum torque that can act on the circular loop is 0.0126 Nm.

Length of wire, L = 150.0 cm

Current, I = 2.20 A

Magnetic Field, B = 0.30 T

We know that torque (T) acting on a circular loop carrying current is given as;

T = NIABSinθ

Where, N = Number of turns of the loop

I = Current flowing in the wire

A = Area of the loop

Sinθ = Angle between the normal to the plane of the loop and the direction of the magnetic field

Here, we have only 1 circular loop so, N = 1

Also, sin 90° = 1

Area of the loop = πr²

Now, L = 2πr

So, r = L/2π= 150.0/2π cm= 23.82 cm= 0.2382 m

Area, A = πr²= π(0.2382)²= 0.177 m²

Putting the values in the above formula,

T = NIABSinθT = (1)(2.20)(0.177)(0.30)(1)T = 0.0126 Nm

Thus, the maximum torque that can act on the loop is 0.0126 Nm.

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The answers are- (a) 2 soft drinks. (b) Uncertain. (c) Not necessarily.

(d) No bliss point. and, (e) Steeper indifference curves.

(a) If Elmo has 4 quarters and 2 dimes in his pockets, he can buy 2 soft drinks. Since each soft drink requires two quarters and a dime, having double the amount of each coin allows him to make two purchases.

(b) Elmo's preferences between dimes and quarters may or may not be convex. Convex preferences imply that as Elmo increases the quantity of one type of money (quarters or dimes), the marginal utility he derives from each additional unit of that money diminishes. If Elmo's preference for soft drinks is based solely on the ability to purchase them and not on any diminishing marginal utility of the coins themselves, then his preferences may not exhibit convexity.

(c) Elmo does not necessarily always prefer more of both kinds of money to less. Given the specific context of the Coke machine, Elmo's only concern is to have the exact change required to obtain a soft drink. As long as he has the necessary combination of two quarters and a dime, having additional coins does not increase his utility further.

(d) Elmo does not have a bliss point in this scenario. A bliss point refers to the combination of goods or factors that maximizes an individual's utility or satisfaction. Since Elmo's sole objective is to purchase soft drinks from the Coke machine, his utility is maximized when he has the exact change required (two quarters and a dime). Having more coins does not enhance his utility beyond being able to buy a single soft drink.

(e) If Elmo had arrived at the Coke machine on a Saturday, with the drugstore across the street open, his preferences would change. Instead of being limited to the specific combination of two quarters and a dime, he could now use any combination of quarters and dimes to purchase as much Coke as he wants at a price of 4 cents per ounce.

In this case, Elmo's indifference curves between quarters and dimes would exhibit a downward slope, indicating that he is willing to trade off some quantity of one coin for a corresponding increase in the other, while still maintaining the same level of utility. The indifference curves would be steeper than the ones in the previous scenario, as Elmo can now acquire more soft drinks by having a larger combination of quarters and dimes.

These new indifference curves reflect Elmo's preference for more quarters and dimes, as they enable him to buy more Coke at the drugstore. The curves demonstrate that Elmo is willing to sacrifice some quantity of quarters to obtain additional dimes or vice versa, as long as the overall combination allows him to maximize the quantity of Coke he can purchase.

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Answer:

Over 60N

Explanation:

If the resultant force is equal, the car will not move. In order for the car to move, Becky needs to apply a force that is stronger than 60N, since her dad is already pushing 240 (240+60=300), so anything over 60 from Becky would move the car.

A wide variety of producers, consumers, & decomposers can coexist in the ecosystem.

The variety of all living creatures on our world, known as biodiversity, has been disappearing at an alarming rate in recent years. This is largely due to human activities such changing land use, pollution, and climate change.

All living creatures and their interactions are represented by the term "biodiversity," which is short for biological diversity. Because of extinctions and the emergence of new species, biodiversity is always changing. Three types of diversity—species, genetic, and ecosystem—are frequently mentioned by scientists.

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The force experienced by a person whose momentum changes by 3kgm/s in 2s is 1.5N.

The force is defined as rate of change in momentum thus,

Force= Change in momentum/ time

Force= 3/2

Force = 1.5N

The relationship between force and momentum is given by

F=dp/dt. The second law of motion gives the following equation given by Newton. This law states that the change in momentum of an object due to its mass is given by its acceleration, or force.

Force (F) is equal to change in momentum (ΔP) with respect to change in time (Δt). Also, the change in momentum (ΔP) is equal to the momentum (J). Impulse has the same units as impulse (kg*m/s or N*s).

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13954 Newtons of the saltwater will be displaced by the boat if it float on the saltwater.

The boat floating in the fresh water displaces 16000N.

We know, the weight of the liquid displaced by the boat is equal to the buoyancy of the boat.

So,

B = 16000N.

When the boat is put into the saltwater, its buoyancy will be,

B = Vpg

Where,

V is the volume of the saltwater displaced,

p is the density of the saltwater,

g is the acceleration due to gravity.

Putting values,

16000 = V(1.17)(9.8)

V = 1395.4 m³.

The weight of the saltwater will be,

Weight = 1395.4 x 10

Weight of the water displaced 13954 Newtons.

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How hard you must push down on the handle is by applying a force of 215.63 N

The moment of a force about a point is the turning effect of the force about that point.

The moment of a force M = Fd where

Now, for you to lift up the car, the moment due to your force about the fulcrum, M equals the moment due to the force on back of car. M'

M = M'

FD = F'd where

Making F subject of the formula,we have

F = F'd/D

Substituting the values of the variables into the equation,we have

F = F'd/D

F = 6900 N × 0.050 m/1.6 m

F = 345 Nm/1.6 m

F = 215.625 N

F ≅ 215.63 N

So, how hard you must push down on the handle is by applying a force of 215.63 N

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Answer:

Earth is shown with a vertical bar magnet inside of it. The south end of the magnet points up, and the north end points down. If the polarity is still flipped, the north end of the magnet points up and the south end points down.

Explanation:

Answer:

Here's my answer that I put in my own words (It's a vertical bar that has South pointing up and North pointing down.

Explanation:

If you wanted the sample answer here it is :)

Earth is shown with a vertical bar magnet inside of it. The south end of the magnet points up, and the north end points down. If the polarity is still flipped, the north end of the magnet points up and the south end points down.

Based on the biodiversity indices given, the ecosystem with a biodiversity index of 0.65 is likely to be healthier compared to the ecosystem with a biodiversity index of 0.23.

Biodiversity is crucial for ecosystem health, as it encompasses species variety and abundance.  Higher biodiversity = healthier ecosystem with more species and  balanced community.

Two ecosystems have biodiversity indices of 0.65 and 0.23. The one with a biodiversity index of 0.65 has a high level of biodiversity. This ecosystem has diverse plant and animal species. The ecosystem's biodiversity index of 0.23 is lower than the previous one. Fewer species means less ecological diversity and interaction in the community. Less biodiversity means weaker ecosystem, vulnerable to harm and less adaptable.

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