Which labels belong in the regions marked X and Y?
OX: Uses turbines to turn generators
Y: Boils water to form steam
OX: Boils water to form steam
Y: Uses turbines to turn generators
OX: Uses uranium
Y: Uses falling water to turn turbines
OX: Uses generators to produce electrical energy
Y: Burns fuel to form steam

Answer:

they protect public safety and market fairness. For example, food safety regulations help protect consumers from pathogens that could cause widespread illness

Answer:

Government regulations are necessary because they protect public safety and market fairness. For example, food safety regulations help protect consumers from pathogens that could cause widespread illness. By creating regulations, the government can make food-borne illness less likely. However, even though these regulations are necessary, they must still meet constitutional requirements. Producers and consumers have the right to own and use property, among other constitutional rights.

Explanation:

EDGE 2023

Answer:

108680.6 days

Explanation:

1 day = 24 hours there is 3600 seconds in 1 hour

so 24 * 3600 = 86400 so there is 86400 second in a day

so the take t = time s = seconds

t = 9.39 * 10^9s * 86400

t = 108680.6 days

Hope This Helped

The following statement best describes how gravity helps protoplanets create layers in that gravity pulls materials and generates compaction, which produces heat and causes materials to melt, sink, and rise. Option A is correct.

Gravitation is a natural law by which all things with all matter are attracted towards one another. gravity causes weight to all matter and the gravity of the moon causes the ocean tides.

The force that draws massed bodies toward one another is known as gravity. Gravitatithus

According to the alternatives, gravity pulls things together and causes compaction, which generates heat and causes things to melt,

Thus, we may draw the conclusion that gravity draws materials and creates compaction, which generates heat and causes materials to melt, sink, and rise.

Hence option A is correct,

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Answer:

its A

Explanation:

Answer:

False

Explanation:

It is actually I = V/R and V = I × R

Answer:

Explanation:

We know the frequency and the velocity, both of which have good units. All we have to do is rearrange the equation and solve for

λ

:

λ

=

v

f

Let's plug in our given values and see what we get!

λ

=

340

m

s

440

s

−

1

λ

=

0.773

m

The cross-sectional area of the tape is determined as 3.9 x 10⁻⁵ ft².

The volume of the tape is calculated as follows;

volume = mass/density

volume = (1.95 lb)/(490 lb/ft³)

volume = 3.98 x 10⁻³ ft³

V  = AL

A = V/L

A = 3.98 x 10⁻³ ft³/102 ft

A = 3.9 x 10⁻⁵ ft²

Thus, the cross-sectional area of the tape is determined as 3.9 x 10⁻⁵ ft².

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Answer: it's c. ← 63 N and → 73 N

Explanation:

Answer:

c. Light energy to thermal energy

Explanation:

The energy from the sun comes in the form of light energy but is converted to thermal energy.

The statement best describes deena's error is: Find acceleration by finding the area of the rectangle above the line.

Acceleration is given by the ratio of Resultant or total force acting on any object and the its mass.

Deena made a chart to summarize features of a velocity vs. time graph for objects with constant acceleration and objects with constant velocity.

In the  velocity time graph, the area under the curve shows the displacement of the object and the slope represents the acceleration.

Thus, the deena's error is  Find acceleration by finding the area of the rectangle above the line.

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Answer:

What the other dude said

Explanation:

Given data in the problem :-

From Newton's Laws of Motion we know that ,

v = u + at  [t = Time taken by aircraft to cover the distance]

⇒ 34 = 0 + 4t

⇒ t = 34/4 s

∴  t = 8.5 s

From Newton's Laws of Motion we also know that ,

S = u.t + 1/2a.t^2

⇒ S = 0×8.5 + 1/2 × 4 × (8.5)^2 m

∴  S = 144.50 m

Thus the distance travelled by the aircraft while accelerating is 144.50 meter .

Answer:

Explanation:

Remark

Though you  do not know what height the previous drone reached, I would think reading 8000 m would be quite an accomplishment. Answer 1: A

B: I wouldn't pick B. Increased cost isn't going to contribute to design success.

C. If the efficiency is low to start with, increasing it some won't matter. On the other hand if the efficiency is moderate or good increasing it by 35% is a good thing. Let's hold on to this answer.

D: It has to work at low altitudes in order to work at high altitudes. I wouldn't pick D

E: Popularity is something you never know will happen. I think C is your best second answer.

Answer: A and C

Answer:

pound of bricks

meh wrong ? XD

Answer:

neither is heavier.both are equal

Explanation:

since 1 pound equals 16 oz.(1 pound=16 oz.).,both are equal too!

Answer:

0.1 mm

Explanation:

60 sheets = 6 mm

We want 1 sheet so we divide both sides by 60 :

1 sheet = 6/60 mm

1 sheet = 1/10 mm

1 sheet is 0.1 mm

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The key difference between a bomb calorimeter and a coffee cup calorimeter is high temperature.

A bomb calorimeter is an apparatus that can measure heats of combustion, used in various applications such as calculating the calorific value of foods and fuels.

A coffee cup calorimeter is a cup used to provide insulation when materials are mixed inside of it.

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The average acceleration between t = 5.6 s and t = 8.5 s is 2.31  m/s²

Acceleration is defined as the rate change of velocity with time.

acceleration a = (Δv) / (Δt)

An object is moving with initial velocity u =5.7 m/s and its final velocity v= -1.0 m/s.

Time taken for the change in speed, t= 8.5 - 5.6 = 2.9 seconds

The acceleration is given by

a = (-1 - 5.7)/ 2.9

a = -  2.31 m/s²

|a | = 2.31 m/s²

Thus, the object's acceleration is 2.31 m/s²

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The statements true concerning the strips with a positive versus a negative hall voltage are a and d.

The hall voltage is the potential created across a current-carrying metal-strip when the strip is placed in a magnetic field perpendicular to the current flow in the strip. it is used as a research tool to probe the movement of charges in materials, as well as determining the blood flow rate.

The top strip possess positive charge carriers, and the electric field points are in the same direction as the electric force.

The bottom strip has negative charge carriers, and the magnetic force points upward along the plate.

This will create an equilibrium of the magnetic force and electrostatic force.

Thus, the correct option are a and d.

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[tex]\text{Power,}~ P = \dfrac{\text{Work done}}{\text{Time}}\\\\\\~~~~~~~~~~~~~=\dfrac{8 \times 1000~J}{4 \times 3600~ s}\\\\\\~~~~~~~~~~~~~~=\dfrac{80}{144}\\\\\\~~~~~~~~~~~~~~=0.56~ W[/tex]

Answer:

Explanation:

Energy used is power multiplied by time.

Power is energy used divided by time

8 kj is 8000 j

4 hours is 240 minutes

240 minutes is 14400 seconds

8000j divided by 14400 is 0.55 recurring, measured in watts

The height of the chairlift above the snow when the ski falls off is determined as 20.4 m.

The height of the chairlift is calculated from the principle of conservation of mechanical energy as shown below;

P.E = K.E

mgh = ¹/₂mv²

gh = ¹/₂v²

h = v²/2g

where;

h = (20)²/(2 x 9.8)

h = 20.4 m

Thus, the height of the chairlift above the snow when the ski falls off is determined as 20.4 m.

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The government are involved in a child or young person’s upbringing in my country by providing the right amenities and ensure the justice system is fair.

This is defined as the way an individual treated at a young age by older adults such as parents.

Providing amenities will ensure the upbringing of the child is easier and a fair justice system will help to control crime.

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The density of the metal sphere is 2 times the density of the liquid as proved.

The net upward force acting on the sphere as it is dropped into the liquid is calculated as follows;

F =  σVg - ρVg

ma =  σVg - ρVg  

where;

σV(a) =  σVg  - ρVg

σ(a) = σg  - ρg

σ(g/2) = σg -  ρg  

g(σ/2) = g(σ -  ρ)

σ/2 = σ -  ρ

σ/2 - σ = -  ρ

-σ/2 = -  ρ

σ = 2ρ

Thus, the density of the metal sphere is 2 times the density of the liquid as proved.

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Considering the definition of weight, on Earth's surface at sea level, the weight of an object with a mass of 180 kg is 1764 N.

Mass is the amount of matter that a body contains and weight is the action exerted by the force of gravity on the body.

The mass of an object will always be the same, no matter where it is located. Instead, the weight of the object will vary according to the force of gravity acting on it.

The weight is calculated as the product of the mass of the object and the value of the gravitational acceleration or gravity:

Weight= mass× gravity

The value of the acceleration constant on Earth is 9.8 m/s². The weight is proportional to the mass of the object. The unit of weight is expressed in Newton (N).

In this case, you know:

Replacing on the definition of weight:

Weight= 180 kg× 9.8 m/s²

Solving:

Weight= 1764 N

Finally, on Earth's surface at sea level, the weight of an object with a mass of 180 kg is 1764 N.

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A truck is moving with less velocity in the direction in which the truck is moving earlier because the truck has more momentum.

A truck is moving with the velocity of 10 m/s in the same direction in which the truck is moving earlier because the truck has more mass so it has more momentum. Due to collision, the velocity of the truck is slow down but can't be stopped because of high momentum in the truck.

So we can conclude that a truck is moving with less velocity in the direction in which the truck is moving earlier because the truck has more momentum.

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Explanation:

displacement, velocity, and acceleration are vector quantities, while speed (the magnitude of velocity), time, and mass are scalars. To qualify as a vector, a quantity having magnitude and direction must also obey certain rules of combination.

Recall the formula of refractive index

[tex]\sf \mu =\dfrac{sini}{sinr}[/tex]

As per the diagram

At AD angle of incidence i is

[tex]\\ \rm\Rrightarrow \gamma=sin^{-1}\left(\dfrac{1}{\dfrac{n_1}{n_2}}\right)[/tex]

[tex]\\ \rm\Rrightarrow \gamma=sin^{-1}\left(\dfrac{n_2}{n_1}\right)[/tex]

At AB's imaginary boundary line

Use snell's law

[tex]\\ \rm\Rrightarrow \dfrac{\mu_1}{\mu_2}=\dfrac{sin\alpha}{sin\beta}[/tex]

[tex]\\ \rm\Rrightarrow \mu_1sin\alpha=\mu_2sin\beta[/tex]

[tex]\\ \rm\Rrightarrow n_2sin\alpha=n_1sin\left(\dfrac{\pi}{2}-\gamma\right)[/tex]

[tex]\\ \rm\Rrightarrow n_2sin\alpha=n_1cos\left(sin^{-1}\left(\dfrac{n_2}{n_1}\right)\right)[/tex]

[tex]\\ \rm\Rrightarrow sin\alpha=\dfrac{n_1}{n_2}cos\left(sin^{-1}\dfrac{n_2}{n_1}\right)[/tex]

[tex]\\ \rm\Rrightarrow \underline{\boxed{\bf{\alpha=sin^{-1}\left[\dfrac{n_1}{n_2}cos\left(sin^{-1}\dfrac{n_2}{n_1}\right)\right]}}}[/tex]

Option A

Explanation:

What is rest ?

( it does not change its position with respect to the table )

What is motion ?

[tex]...[/tex]

Question : What is Rest ?

Example ...

Question : What is Motion ?

Example ....

Answer:

Equation of Special Relativity

[tex]E=mc^2[/tex]

where:

First, convert 4 g into kilograms as mass is measured in kg:

[tex]\implies \sf 4\:g = 0.004\:kg=4 \times 10^{-3}\:kg[/tex]

Substitute the given values into the equation and solve for E:

[tex]\begin{aligned}E & = mc^2\\\implies E & = \sf (4 \times 10^{-3}) \cdot(3 \times 10^8)^2\\& = \sf (4 \times 10^{-3}) \cdot (3^2 \times 10^{8(2)})\\& = \sf (4 \times 10^{-3}) \cdot (9 \times 10^{16})\\& = \sf 4 \cdot9 \times 10^{-3} \cdot10^{16}\\& = \sf 36 \times 10^{(-3+16)}\\& = \sf 36 \times 10^{13}\\& = \sf 3.6 \times 10^{14}\: \sf J \end{aligned}[/tex]

Use Albert Einstein's equation

m=0.004kg

Answer:

D. Energy is converted between kinetic and gravitational potential energy.

Explanation:

Given what we know, we can confirm that amongst the wave types mentioned both X-rays and radio waves are able to transmit energy through a vacuum.

This is due to the fact that unlike sound, water, and seismic waves that transmit energy through air, water, or the earth, the waves mentioned above, those being radio and x-rays, do not need a medium through which to propagate. This allows them to exist and transmit energy even in a vacuum such as outer space, which is corroborated by their existence in space.

Therefore, we can confirm that amongst the wave types mentioned both X-rays and radio waves are able to transmit energy through a vacuum.

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Answer:

we can confirm that amongst the wave types mentioned both X-rays and radio waves are able to transmit energy through a vacuum.

Explanation: Edmentum

The net force needed to lift a full grocery sack uniformly is 32.115 N.

When two or more forces are acting on the system of objects, then the to attain equilibrium, net force must be zero.

Given the weight of sack W = 210N and the acceleration a = 1.5m/s².

The mass of the sack will be

m = Weight / acceleration due to gravity

m = 210 N/9.81 m/s²

m = 21.41 kg

Using Newton's second law, the net force will be

F = mass x acceleration

F= 21.41 x 1.5

F = 32.115 N

Thus, the net force is 32.115 N.

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