Which of the following equations best represents y is directly related to square of x

Answer:

i want the answer

Explanation:i want the answer

a. The power consumed by this appliance is 931.7W

b. The electrical energy is consumed by this food processor monthly (30 days) if it is used on average of 10.0 min every day is 4.65kWh

c. The  monthly cost of using this food processor is 32.55 $

The rate of consumption of energy is power. it is given by the product of potential difference(V) and current(I)

a. P = VI  

here V  = 110V . I = 8.47 A

P = 110 x 8.47 = 931.7W

hence power consumed is 931.7 W

b. electrical energy  consumed by this food processor monthly (30 days) if it is used on average of 10.0 min every day is

E = P/t

Here, P = 931.7 W = 0.93kW

t = 10 x 30 = 300 min = 5 h

So, E =0.93 x 5 =  4.65 kWh

hence electrical energy consumed is 4.65kWh

c. The monthly cost of using the food processor is

given ,

Cost of one unit is 7.00$

Cost of 4.65 unit will be  7.0 x 4.65 =  32.55$

monthly cost of using the food processor  is  32.55$

2.

a.  Power consumption of refrigerator is  416 W

P = E/t  

Here, E = 70 kwh . t = 1 week = 168 h

So, P=  70/168 = 0.416 kW = 416 W

b. Current drawn by the refrigerator  is 3.46A

P = VI

Here, V = 120V, P = 416 W

So, I = P/V = 416/120 = 3.46 A

3.

a. The resistance of the element is 5.14 Ω

b. Current drawn by the boiler is 23,33A

Resistance is the hindrance caused in the flow of current

a. The resistance is given by \(R = v^{2} / P\)

here V = 120V , P = 2.8kW = 2800W

R = (120 x 120)/ 2800 = 5.14Ω

Hence Resistance of the boiler is 51.4Ω

b.   V = IR so, I = V /R

Here, V = 120V , R = 5.14Ω

So, I = 120/51.4 = 23.33 A

Hence current drawn by the boiler is 23.33A

The alternate way to find the current is by using formula

P = VI  

I = P/V

Since, P = 2800W,   V = 120V

So, I = 2800/120 =23.33 A

Hence Current comes out to be the same from both the method which verifies the answer .

To know more about power here

brainly.com/question/12584580

The Big Bang theory is the prevailing cosmological model that explains the origins of the universe. According to the theory, the universe began as a singularity, a hot and infinitely dense point, approximately 13.8 billion years ago. From this singularity, the universe expanded and cooled, eventually leading to the formation of subatomic particles, atoms, stars, and galaxies. The theory also states that the universe is still expanding and it's getting cooler and larger.

The theory was first proposed by Belgian priest and physicist Georges Lemaître in 1927 and later developed by Edwin Hubble's observations of the redshifts of distant galaxies in the 1920s and 1930s. The theory has been extensively tested and supported by a wide range of observational evidence, including cosmic microwave background radiation and the large-scale structure of the universe.

To learn more about the big-bang theory:

brainly.com/question/15421576

Answer:

The Big-Bang Theory is the prevailing cosmological model for the universe from the earliest known periods through its subsequent large-scale evolution. The model describes how the universe expanded from an initial state of high density and high temperature, and offers a comprehensive explanation for a broad range of phenomena, including the abundance of light elements, the cosmic microwave background, large scale structure and Hubble's law. According to the Big-Bang Theory, the universe was once in an extremely hot and dense state which expanded rapidly. As it cooled, the first subatomic particles formed and then simple atoms, eventually leading to the formation of stars and galaxies. The Big-Bang Theory is supported by a wide range of scientific observations and provides a comprehensive explanation for the structure and evolution of the universe.

Explanation:

Potential energy is a scalar quantity because it has only magnitude and no direction. Its ability to be negative does not affect its scalar nature.

Please mark brainliest

Answer:

The actual speed of the rain is 5 m/s and its direction is -53.13°

Explanation:

The actual speed of the rain V = speed of man, v + speed of rain relative to man, v'.

V = v + v'

We add these vectorially.

Since the man's speed is 3 m/s east, in the positive x - direction, we have v = 3i  and the rain's speed is falling vertically at 4 m/s, in the negative y- direction, we have v' = -4j

So, V = v + v'

V = 3i + (-4j)

V = 3i - 4j

So, the magnitude of V which is its speed is V = √(3² + (-4)²) = √(9 + 16) = √25 = 5 m/s

The direction of V, Ф = tan⁻¹(vertical component/horizontal component) = tan⁻¹(-4/3) = tan⁻¹(-4/3) = tan⁻¹(-1.333) = -53.13°

So, the actual speed of the rain is 5 m/s and its direction is -53.13°

Answer:

250 m

Explanation:

Refer to the attachment for the graph. Here, we are asked to calculate the distance travelled.

⇒ Area under the graph = Distance travelled by the body

Area of trapezium = ½ × Sum of parallel sides × Height

\( \twoheadrightarrow \quad \sf {S = \dfrac{1}{2}\times (AD + BC) \times OC} \\ \)

\( \twoheadrightarrow \quad \sf {S = \dfrac{1}{\cancel{2}}\times (10+30) \times \cancel{10}} \\ \)

\( \twoheadrightarrow \quad \sf {S = 1\times 50 \times 5} \\ \)

\(\twoheadrightarrow \quad \boxed{\red{\sf{ S = 250 \; m}}}\\\)

❝ Therefore, distance travelled by the body is 250 m. ❞

ItItItIt  is carried out by using secondary cells .

It is made up of by aluminium, nickel ,zinc, titanium,copper ,steal , stainless steel. There are two different types of chrome plating hard chromium and decorative chromium plating.

Chrome plating is used to prevent corrosion . Helps to minimize the wear and tear ,as well as increase the  lifespan of the material. By adding the layer on another material it can remove the corrosion, reduce friction, enhance its appearance.

to learn more about Chrome plating click here https://brainly.com/question/28024912

#SPJ9

Option A) 3.9 km is the correct answer. the magnitude of Rhea's displacement vector is approximately 3.92 km.

In order to find out the magnitude of Rhea's displacement vector, we have to add up all of the displacement vectors.

Then we can use the Pythagorean theorem to calculate the magnitude of the resultant vector.

Since Rhea is first driving north for 2.4 km and then west for 3.1 km, we can represent her displacement vectors as follows: Δx = 0 km and Δy = 2.4 km for the first vector, and Δx = -3.1 km and Δy = 0 km for the second vector.

We can then add these vectors together by adding their components: Δx = 0 km + (-3.1 km) = -3.1 km and Δy = 2.4 km + 0 km = 2.4 km.

This gives us a resultant vector of -3.1 km east and 2.4 km north.

Using the Pythagorean theorem, we can find the magnitude of this vector: \(\sqrt{(\(-3.1 km)^{2} + (2.4 km)^{2} ) } = \sqrt{(9.61 + 5.76) km^{2} } = \sqrt{15.37 km^{2} } \approx 3.92 km.\)

Therefore, the magnitude of Rhea's displacement vector is approximately 3.92 km.

Therefore, option A) 3.9 km is the correct answer.

For more questions on displacement vector

https://brainly.com/question/28952425

Answer: In contrast to the 21st century, which is a period of enormous technological advancement and globalization, ancient civilizations were agrarian communities with a high degree of social stratification.

Explanation: the differences between ancient civilizations and the 21st century, in two paragraphs of five lines each:

A)

Ancient civilizations:

Paragraph 1: Ancient societies were agrarian, focusing on commerce and agriculture, with a small elite ruling a large population of farmers, artisans, and laborers.

Paragraph 2:Ancient civilizations advanced art, architecture, mathematics, science, and social systems, creating religious beliefs and intricate social systems like Egyptian, Greek, Roman, and Chinese.

21st century:

Paragraph 1: Globalization and technological advancements in the 21st century have made us connected to the world, enabling us to stay connected through information and communication tools.

Paragraph 2: The 21st century faces challenges like economic inequality, political instability, and climate change, yet it also represents a hopeful generation dedicated to improving the world and overcoming these challenges.

Learn more about 21st century and ancient civilizations:

https://brainly.com/question/870459

In ancient civilizations, major developments in human history took place, such as the invention of writing systems and the rise of empires. In the 21st century, advancements in technology and globalization have transformed the world. Ancient civilizations have exerted a lasting influence on our modern world, from written communication to political systems and architectural wonders.

In ancient civilizations, major developments in human history took place, such as the invention of writing systems, the rise of empires, and the development of complex societies. For example, in ancient Egypt, pharaohs ruled over a hierarchical society and constructed impressive monuments like the pyramids. In the 21st century, advancements in technology and globalization have transformed the world. This period is characterized by rapid communication, scientific and technological breakthroughs, and interconnectedness through the internet and social media.

Locating ancient civilizations in our own context, we can observe their influence in our modern world. The writing systems developed by ancient civilizations laid the foundation for written communication, which is still vital today. The concept of empires and nation-states, which began in ancient times, is significant in understanding modern political systems. Additionally, the architectural wonders of ancient civilizations, like the Great Wall of China and the Colosseum, continue to be celebrated and preserved as cultural heritage.

https://brainly.com/question/17306873

#SPJ2

Answer:

48N

Explanation:

because as the distance is halfed. the force on the two objects are quadrupled.

Answer:

Explanation:

Power of defective eye = (1 / near point )+ (1 / lens-retina distance )

1 / .0198 m  =  (1 / near point )+ (1 / .02 m  )

= 50.50 = (1 / near point )+ 50

0.50 = 1 / near point

near point = 1 / .5 = 2m

= 200 cm .

for near point at 25 cm , convex lens will be required.

u = - 25 cm , v = - 200 cm ,

1 / v - 1 / u = 1 /f for lens

- 1 / 200 +  1 / 25 = 1 / f

= .04 - .005 = 1 /f

.035 = 1 / f

f = 28.57 cm = 0.2857 m

power = 1 /f

= 1 / 0.2857

= 3.5 D .

i v ) option is correct .

In a scenario where an egg is free-falling from a nest in a tree and neglecting air resistance, there is one force acting on the egg and the force is unbalanced which is denoted as option B.

This is referred to as an external agent which is capable of influencing the motion of an object or body. It is also capable of changing the state of rest of a body and the unit in Newton.

When an object is falling from a height and there is no air resistance then the only force acting on it is gravitational force which is unbalanced as there is no equal and opposite force to make it stable.

Read more about Force here https://brainly.com/question/388851

#SPJ1

Answer:

83.168 Nm

Explanation:

I=mass of bat* ( length )^2 /3

Moment of inertia from one end = 2.2 * (0.96)^2 / 3.

Ang. acc. = 2.2×2 pi / 0.2 = 22pi

Torque =  2.3 * (0.96)^2 / 3 * 22 pi = 83.168 Nm SI units

Answer:

True im pretty sure

Explanation:

Answer:

False

Explanation:

The answer is false, I tested it on IXL

Please i have asked a.question please help.me

Explanation:

Please i have asked a question in math please help me

The final amount of pressure caused by the force is 90 N/m².

Initial amount of force, F₁ = 22 x 10³ N

Initial amount of pressure produced, P₁ = 110 N/m²

Final amount of force exerted, F₂ = 18 x 10³ N

Pressure is defined as the amount of force acting on an object per unit area of the object.

So, we can say that the force and pressure are directly proportional.

F ∝ P

So, F₁/P₁ = F₂/P₂

Therefore, the final amount of pressure caused by the force is,

P₂ = F₂P₁/F₁

P₂ = 18 x 10³x 110/22 x 10³

P₂ = 18/0.2

P₂ = 90 N/m²

To learn more about pressure, click:

https://brainly.com/question/8033367

#SPJ1

The coefficient of static friction places a limit of approximately 3.42 seconds on the minimum time required for the car to accelerate from rest to 60.0 mph (26.8 m/s).

To find the limit that the coefficient of static friction places on the minimum time required for a car to accelerate from rest to 60.0 mph (26.8 m/s), we need to consider the maximum acceleration the car can achieve due to the friction between the rear tires and the pavement.

The maximum acceleration can be determined using the formula:

a_max = μs * g

where μs is the coefficient of static friction and g is the acceleration due to gravity (approximately 9.8 m/s²).

In this case, since the car's engine only turns the two rear wheels, the maximum acceleration is limited by the friction force between the rear tires and the pavement.

Now, to calculate the minimum time required to accelerate to 60.0 mph (26.8 m/s), we can use the following kinematic equation:

v = u + a * t

where v is the final velocity (26.8 m/s), u is the initial velocity (0 m/s), a is the acceleration, and t is the time.

Rearranging the equation, we have:

t = (v - u) / a

Plugging in the values, we get:

t = (26.8 m/s - 0 m/s) / a_max

t = 26.8 m/s / (μs * g)

Substituting the given value for the coefficient of static friction (μs ≈ 0.800) and the acceleration due to gravity (g ≈ 9.8 m/s²), we can solve for the minimum time required:

t = 26.8 m/s / (0.800 * 9.8 m/s²)

t ≈ 3.42 seconds

Therefore, the coefficient of static friction places a limit of approximately 3.42 seconds on the minimum time required for the car to accelerate from rest to 60.0 mph (26.8 m/s).

for more questions on friction

https://brainly.com/question/28270202

#SPJ8

The one that is accurate is that when the phosphate is broken down into ADP, ATP releases energy.

The energy that cells need is produced through the breakdown of glucose. More energy cannot be stored by ATP molecules than is released by the cells. In actuality, ATP doesn't retain as much energy as a glucose molecule. See the equation in the question; roughly 38 ATP molecules are produced for every glucose molecule.

The cell stores extra energy by reattaching a free phosphate molecule to ADP, converting it back into ATP. This extra energy can come from the breakdown of food that has been ingested or, in the case of plants, energy produced during photosynthesis.

To know more about ATP  visit:-

https://brainly.com/question/14637256

#SPJ4

The ball's height \(y\) at time \(t\) is given by

\(y = 29.2\,\mathrm m - \left(8.30\dfrac{\rm m}{\rm s}\right) t - \dfrac12 gt^2\)

where \(g=9.80\frac{\rm m}{\mathrm s^2}\).

Solve for \(t\) when \(y=0\). Omitting the units, we have

\(29.2 - 8.30t - \dfrac g2 t^2 = 0\)

I'll solve by completing the square.

\(29.2 - \dfrac g2 \left(t^2 + \dfrac{16.6}g t\right) = 0\)

\(29.2 - \dfrac g2 \left(t^2 + \dfrac{16.6}g t + \dfrac{8.3^2}{g^2}\right) = -\dfracg2 \times \dfrac{8.3^2}{g^2}\)

\(29.2 - \dfrac g2 \left(t + \dfrac{8.3}g\right)^2 = -\dfrac{8.3^2}{2g}\)

\(\dfrac g2 \left(t + \dfrac{8.3}g\right)^2 = 29.2 + \dfrac{8.3^2}{2g}\)

\(\left(t + \dfrac{8.3}g\right)^2 = \dfrac{58.4}g + \dfrac{8.3^2}{g^2}\)

\(t + \dfrac{8.3}g = \pm \sqrt{\dfrac{58.4}g + \dfrac{8.3^2}{g^2}}\)

\(t = -\dfrac{8.3}g \pm \sqrt{\dfrac{58.4}g + \dfrac{8.3^2}{g^2}}\)

\(\implies t \approx -3.43 \text{ or } t \approx 1.74\)

Ignore the negative solution; the ball hits the ground about 1.74 s after being thrown.

Answer:

2.00 A

Explanation:

Total resistance = 10 + 20 + 30 = 60 ohms

Potential difference (V) = 120volts

Current (I) =?

from Ohms law V = IR

==> I = V/R = 120/60 = 2 A

Note: for resistors in series equal amount of electric current flows through the circuit

The thermal conductivity of a material and the temperature differential between two objects affect the rate of thermal energy transfer between them would be an excellent question on the factors that influence thermal energy transfer.

The amount of radiant energy that enters a residence in the winter is maximised by large windows that face south. Tiny windows that face north help keep heat in. Triple-paned windows minimise thermal energy loss.

The surface area, volume, material, and kind of the surface the object is in touch with are all factors that affect how quickly an object transfers energy by heating.

To know more about thermal energy visit:-

https://brainly.com/question/14515276

#SPJ9

Answer:

The Solar System has plants? I assume you meant planets. If so, that is false

Explanation:

The way in which one atom interacts with another atom is mostly influenced by the configuration of the electrons farthest from the nucleus.

Option A.

An atom can be defined as the smallest part of a substance that cannot be broken down chemically. Each atom has a nucleus (center) made up of protons (positive particles) and neutrons (particles with no charge).

The arrangement of electrons in orbitals and shells around the nucleus is referred to as the electronic configuration of the atom.

Thus, we can conclude that the way in which one atom interacts with another atom is mostly influenced by the configuration of the electrons farthest from the nucleus.

The remaining options do not fit the empty space properly, and they include;

Learn more about electron configuration here: https://brainly.com/question/26084288

#SPJ1

Answer:

1. The electric potential at any point in space, is the work done in moving a unit charge from infinity to that point.

2.The electric potential varies radially by decreasing as the distance from the electric field increases.

Explanation:

1. The electric potential at any point in space, is the work done in moving a unit charge from infinity to that point. It is defined mathematically as, V = W/q where V = electric potential, W = work done in moving charge q into electric field and q = charge. For the work done of moving a charge q into an electric field of charge q' at a distance r between them, W = kqq'/r and work done per unit charge in moving q in electric field is V = W/q = kqq'/r ÷q = kq'/r, Also, for an electric field, E, V = ∫E.dr where r is the direction moved by the charge in the electric field.

2. Since the electric potential V = kq'/r, V ∝ 1/r since k and q' are constant. So, the electric potential varies radially by decreasing as the distance from the electric field increases.

The given velocity is 54km/hr, which, when converted to m/s using 1km = 1000m and 1 hour = 3600 seconds, equals 15m/s.

Now substitute the initial speed u = 15m/s values.

v = 0m/s as the final velocity

Time is 6 seconds.

In the a= -3 m/ s2 equation,

s= ut + 1/2at2 s= 15 6+ 1/2(-3)(6)2 s= 90-45 s = 45m

As a result, after using the brakes, the car will halt for up to 45 meters.

The inverse of acceleration is deceleration. The deceleration will be calculated by dividing the final velocity minus the initial velocity by the time required for the velocity drop.

For more information on deacceleration kindly visit to

https://brainly.com/question/20712457

#SPJ1

Explanation:

Distance and amount of charge are factors that determine which of the

following quantities?

D. All of the above

The force constant of the spring is  866.7 N/m.

In order to fix the question that we have here we have to look at the Hooke's law. From the Hooke's law we have to note that the force that is causing the string to become expanded is proportional to the extension of the spring as long as the elastic limit has not been exceeded.

Now we know that the Hooke's law would refer to the force and the extension and that is what we would need to be able to solve in order to get the force constant as we have been asked in the problem that we have here.

Thus;

F = Ke

F = force

K = force constant

e = extension

Then;

K = F/e

K = 26 N/3 * 10^-2 m

K = 866.7 N/m

From the calculation that we have done in the lines above, we have obtained the force constant to be about  866.7 N/m.

Learn more about force constant:https://brainly.com/question/15170479

#SPJ1

This is the period in a simple harmonic motion which is 2 seconds in this question.

The period of an oscillatory object can be defined as the total time taken  by a vibrating body to make one complete revolution about a reference point.

We are given the below question

2×3.14√(1.0m/(9.8〖ms〗^(2) )= T

This question can as well be expressed as

2π√(L/g) which is equal to period T.

In a nut shell, Period T = 2×3.14√(1.0m/9.8)

T = 6.28√0.102

T = 6.28 × 0.32

T = 2.006 s

Therefore, the period T of the oscillation is 2 seconds approximately.

Learn more about Period here: https://brainly.com/question/12588483

#SPJ1

Answer:

0.1351 m

Explanation:

*my number calculations may be wrong, but the process is correct*

W = Wg - Ws = mgh - \(\frac{1}{2}\)kx^2 = mg(d + x)sinθ - \(\frac{1}{2}\)kx^2

Δk = 0 - \(\frac{1}{2\\}\)mv\(_{i}\)^2

W = Δk

-\(\frac{1}{2}\)mv\(_{i}\)^2 = mg(d + x)sinθ - \(\frac{1}{2}\)kx^2

Now plug in your given values:

m=2.27, g=9.8, d=0.327, θ=20, k=455, v=0.750

Now rearrange the equation so it is in the form ax^2 + bx + c = 0 where x is the unknown distance you are looking for.

~if my math is correct it should be:~

0 = -227.5x^2 + 7.608580108x + 3.126443195

Now plug your numbers into the quadratic formula and the positive x value you get is the answer.

~if my math is correct it should be:~

x = 0.1351376847 m = 0.1351 m