What is the outgoing voltage on a transformer if the primary voltage is 20 V and the primary coil has 100 coils if the secondary coil has 50 coils?Select one:a.25 Vb.20 Vc.10 Vd.100 V

A cell phone more likely to break when dropped from a higher height than a lower one because it has more potential energy at high height.

Potential energy is the energy stored by an object as a result of its position relative to other objects, internal tensions, electric charge, or other reasons.

Potential energy is commonly defined as an object's gravitational potential energy, the elastic potential energy of an extended spring, and the electric potential energy of an electric charge in an electric field. The joule is the SI unit of energy.

Although it has connections to the Greek philosopher Aristotle's concept of potentiality, the word potential energy was coined by the 19th-century Scottish engineer and physicist William Rankine.

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Hi there!

To solve, we must begin by calculating the total WORK done on the object.

W = F · d (Force · displacement)

Plug in the given values. Remember to convert km to m:

1 km = 1000 m

0.6 km = 600 m

W = 60 · 600 = 36000 J

Now, we can solve for power:

P = W/t

Convert minutes to seconds:

1 min = 60 sec

20 min = 1200 sec

P = 36000/1200 = 30 W ⇒ Choice D.

The magnitude of the force P provided that the stress in the part AB is two times that of BC part is 0.8 kN.

The magnitude of the force P provided that the stress in the part AB is two times that of BC part is calculated as follows;

Take moment about the joint to determine the magnitude of the force along part BC.

120 kN x 750 mm  =  F x 1000 mm

F = ( 120 kN x 750 mm ) / ( 1000 mm )

F = 90 kN

Stress is given as force divided by area. The following equation can be used to determine the magnitude of force P.

Stress in AB = 2 times stress in BC

P/A₁  = 2F/A₂

where;

A₁ =  πd²/4  =  π(50 x 10⁻³)²/4

A₁ = 1.96 x 10⁻⁵ m²

A₂ = πd²/4  =  π(75 x 10⁻³)²/4

A₂ = 4.42 x 10⁻³ m²

P/A₁ = 2F/A₂

P = (2F x A₁) / (A₂)

P = (2 x 90 kN x 1.96 x 10⁻⁵ m² ) / ( 4.42 x 10⁻³ m² )

P = (2 x 90,000 N x 1.96 x 10⁻⁵ m² ) / ( 4.42 x 10⁻³ m² )

P = 798.2 N

P = 0.798 kN

P ≈ 0.8 kN

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Time period of a wave is the inverse of its frequency. The period of the wave with a frequency of 2.09 Hz is 0.47 seconds.

Frequency of a wave is the number of wave cycles per unit time. Frequency is the inverse of the time period of the wave. Hence, it has the unit of s⁻¹ which is equivalent to Hz.

The higher frequency of a wave indicates more number of wave cycles in a short time. Frequency is directly proportional to the energy and inversely proportional to the  wavelength.

Given the time period of the wave = 2.09 Hz

then frequency = 1/2.09 Hz = 0.47 s.

Therefore, the time period  of the wave is 0.47 seconds.

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Answer:

(a) The angular frequency ($\omega$) of a spring/mass system with a force constant ($k$) and a mass ($m$) can be found using the formula:

\omega = \sqrt{\frac{k}{m}}

Plugging in the values given, we get:

\omega = \sqrt{\frac{90 N/m}{8.15 kg}} \approx 3.18 \text{ rad/s}

Therefore, the angular frequency of the spring/mass system is approximately 3.18 rad/s.

(b) The period ($T$) of a spring/mass system can be found using the formula:

T = \frac{2\pi}{\omega}

Plugging in the value of $\omega$ we found in part (a), we get:

T = \frac{2\pi}{3.18\text{ rad/s}} \approx 1.98 \text{ s}

Therefore, the period of the spring/mass system is approximately 1.98 s.

According to the information we can infer that the forces are PULLING forces, OPPOSITE FORCES, EQUAL, forces DO balance each other, the resultant force is ZERO, and there IS NO motion.

According to the information of the image, we can conclude that the forces shown above are PULLING forces because they involve pulling a rope on each side. Also, the forces shown above are OPPOSITE FORCES because they act in opposite directions, pulling the rope towards different sides.

On the other hand, the forces are EQUAL in magnitude because each side exerts a force of 1000 Newtons. Additionally, the forces DO balance each other because they have the same magnitude and act in opposite directions. The individuals on each side are exerting equal forces, resulting in a balanced system.

Finally, the resultant force is ZERO because the forces are equal in magnitude and act in opposite directions. The combined effect of the forces is no net force or resultant force and there IS NO motion because the forces are balanced, resulting in a net force of zero. In a balanced system, the objects will remain at rest or in a state of uniform motion.

Note: This question is incomplete. Here is the complete information:
Attached image

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Answer:

There will be no tides

Explanation:

Explanation:

w= mg

weight on earth= 50 * 9.8= 490 Newtons

weight on mars,= 50 * 3.7= 185 Newtons

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Answer:

4 bobux

Explanation:

one bobux

two bobux

three bobux

four bobux

The total distance traveled by the car at the given velocity and time is 900 m.

The given parameters:

The final time of motion of car before coming to rest is calculated as follows;

\(v_f = v_0 -at\\\\0 = 20 - 2t\\\\t = 10 \ s\)

The graph of the car's motion is in the image uploaded.

The total distance traveled by the car is calculated as follows;

\(total \ distance = A \ + B \ + C\\\\total \ distance = (\frac{1 }{2} \times 20 \times 20) \ + (20 \times 30) \ + (\frac{1}{2}\times 10 \times 20)\\\\total \ distance = 900 \ m\)

Thus, the total distance traveled by the car at the given velocity and time is 900 m.

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Answer:

Here you go, hope this helps! :)

Explanation:

Opportunity cost is the value of the next best thing you give up whenever you make a decision. It is "the loss of potential gain from other alternatives when one alternative is chosen". ... For example, opportunity cost is how much leisure time we give up to work.

Given that mass of the car, m= 1300 kg and displacement,x = 638.4 m and time taken to reach the top of the mountain, t = 3.362 minutes = 3.362 X 60 = 201.72 s

The velocity will be,

The acceleration will be

As initial velocity is zero.

Also, the force will be

Thus Power will be,

Power value should be converted from W to hp as mentioned in the question.

Environmentally responsible involves more than just avoiding plastic bags; it also means making daily decisions that, quite literally, will determine whether or not we succeed as a species.

We can slow the pace of climate change by becoming more aware of how we can reduce pollution, safeguard species, conserve natural resources, and take other steps.

Everyone can make a difference, especially when wise environmental decisions become routine and perhaps even start inspiring others to follow suit.

Even immediate personal advantages can result from acting morally in favor of the future of life on Earth. It can help you express your creativity, become more involved in your community and the wider world, and lead to a healthier living.

Therefore, Environmentally responsible involves more than just avoiding plastic bags; it also means making daily decisions that, quite literally, will determine whether or not we succeed as a species.

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Given :

How to calculate average speed?

Average speed is calculated by Distance travelled / time taken.

Here, we know distance is 140 m and time is 5 seconds. Substituting the values,

=) Distance / Time

=) 140 m / 5 s

=) 28 m/s.

Therefore, the average speed (in m/s) of a cheetah that runs 140 meters in 5 seconds is 28m/s.

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Answer:

Explanation:

Electric power is given by the formula

P = VI

as current is given by

I = V/R

P = V²/R is also a valid formula

This means that for a constant voltage V, the maximum power will occur when the Resistance is at a minimum.

for the circuit, the equivalent resistance is

Re = 2 + 1/(1/8 + 1/R₁)

For minimum Re, we need the right hand term to be as small as possible.

For the right hand term to be small, we want the denominator (1/8 + 1/R₁) to be very large. This will approach the largest value when R₁ approaches zero Ω to make 1/R₁ approach infinity.

R₁ = 0 makes Re = 2 Ω

P = 24²/2 = 288 W(atts) which will be the maximum possible power dissipation provided that the 2Ω resistor is capable of handling the heat. It will be carrying 100% of the current. The 8Ω resister will carry 0% of the current.

The magnitude of the initial acceleration of the object is 4.2 m/s².

The tension in the string once the object starts moving is 13.65 N.

The magnitude of the initial acceleration of the object is calculated by applying Newton's second law of motion as follows;

F(net) = ma

m₂g - μm₁g cosθ = a(m₁ + m₂)

where;

(4.75 x 9.8) - (0.535 x 3.25 x 9.8 x cos40) = a(3.25 + 4.75)

33.5 = 8a

a = 33.5/8

a = 4.2 m/s²

The tension in the string once the object starts moving is calculated as;

T = m₁a

T = 3.25 x 4.2

T = 13.65 N

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The force at the axle A is 35,903 N, in the direction 60 degrees counterclockwise from the +x-axis.

Distance is a numerical measurement of how far apart two points are. It is a scalar quantity that represents the length of the path traveled between two points in space, regardless of the direction. Distance is typically measured in units such as meters, kilometers, miles, or feet. It is an important concept in physics, as it is used in many physical calculations, such as those involving speed, velocity, and acceleration. It is also a fundamental concept in everyday life, as it is used to describe the separation between two objects or locations.

To solve this problem, we need to use the principle of moments. The sum of moments about any point is equal to zero when the object is in static equilibrium.

First, let's find the distance from point A to the center of mass of the boom. We can use the fact that the boom is uniform and its center of mass is at the geometric center.

distance from A to center of mass = 12.5 m / 2 = 6.25 m

Let's take point A as the pivot point for calculating the moments. Then, the moment due to the tension T in the cable is:

moment due to T = T * 12.5 m

The moment due to the weight of the boom is:

moment due to boom =\(1400 kg * 9.81 m/s^2 * 6.25 m\)

The moment due to the weight of the load is:

moment due to load = \(3000 kg * 9.81 m/s^2 * 12.5 m\)

Since the system is in static equilibrium, the sum of these moments must be equal to zero:

\(T * 12.5 m - 1400 kg * 9.81 m/s^2 * 6.25 m - 3000 kg * 9.81 m/s^2 * 12.5 m = 0\)

Solving for T, we get:

\(T = (1400 kg * 9.81 m/s^2 * 6.25 m + 3000 kg * 9.81 m/s^2 * 12.5 m) / 12.5 T = 41475 N\)

So the tension in the cable is 41,475 N.

To find the force at the axle A, we can use the fact that the sum of forces in the x and y directions must be equal to zero, since the system is in static equilibrium. Let's take the +x axis to the right and the +y axis upward.

The forces in the x direction are:

\(T * cos(30°) - N = 0The forces in the y direction are:T * sin(30°) + 1400 kg * 9.81 m/s^2 + 3000 kg * 9.81 m/s^2 = 0Solving for N, we get:N = T * cos(30°) = 41475 N * cos(30°) = 35903 N\)

So the force at the axle A is 35,903 N, in the direction 60 degrees counterclockwise from the +x-axis.

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The rolling disk's initial angular momentum is mR√[2(gR + v²)]/2

Using the law of conservation of energy, the initial mechanical energy E of the disk equals its final mechanical energy E' as it climbs the step.

So, E = E'

1/2Iω + 1/2mv² + mgh = 1/2Iω' + 1/2mv'² + mgh'

where I = rotational inertia of disk = 1/2mR² where m = mass of disk and R = radius of disk, ω = initial angular speed of disk, v = initial velocity of disk, h = initial height of disk = 0 m, ω' = final angular speed of disk = 0 rad/s (assumung it stops at the top of the step), v' = final velocity of disk = 0 m/s (assumung it stops at the top of the step), and h' = final height of disk = R/2.

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

1/2Iω² + 1/2mv² + mgh = 1/2Iω'² + 1/2mv'² + mgh'

1/2(1/2mR² )ω² + 1/2mv² + mg(0) = 1/2I(0)² + 1/2m(0)² + mgR/2

mR²ω²/4 + 1/2mv² + 0 = 0 + 0 + mgR/2

mR²ω²/4 + 1/2mv² = mgR/2

R²ω²/4 = gR/2 + 1/2v²

R²ω²/4 = (gR + v²)/2

ω² = 2(gR + v²)/R²

ω² = √[2(gR + v²)/R²]

ω = √[2(gR + v²)]/R

Since angular momentum L = Iω, the rolling disk's initial angular momentum is

L = 1/2mR² ×√[2(gR + v²)]/R

L = mR√[2(gR + v²)]/2

the rolling disk's initial angular momentum is mR√[2(gR + v²)]/2

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The thing that happens to the speed of light when it passes from a medium of low index of refraction  into a medium of high index of refraction is that it tend to speed up.

Light moves more quickly when it enters a medium with a lower refractive index, as air from water. The light deviates from the straight line. Light will move more slowly and obliquely as it penetrates a substance with a higher refractive index.

The speed of light increases with decreasing refractive index. The lesser refractive index belongs to medium A. When moving at a speed equal to the speed of light divided by the refractive index, light will move more quickly through medium A.

Hence, Light bends in the direction of the normal as it passes through an interface into a medium with a greater index of refraction. On the other hand, light bending away from an interface from higher n to lower n.

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Answer:

i can't man sorry but others will be helpful to you

Total distance=60m+40m=100m

Total Time=6+4=10s

#a

\(\boxed{\sf Speed=\dfrac{Distance}{Time}}\)

\(\\ \sf\longmapsto Speed=\dfrac{100}{10}\)

\(\\ \sf\longmapsto 10m/s\)

#b

Displacement=AC=60m

\(\\ \sf\longmapsto Velocity=\dfrac{Displacement}{Time}\)

\(\\ \sf\longmapsto Velocity=\dfrac{60}{10}\)

\(\\ \sf\longmapsto 6m/s\)

#C

Distance=60m

time=5s

\(\\ \sf\longmapsto Velocity=\dfrac{60}{5}=12m/s\)

#d

The velocity of A to C is greater than Velocity from C to A

The quantity of motion of a moving body, measured as a product of its mass and velocity.

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Answer:

Weight = Mass × Gravity ( = Weight )

Explanation:

I'm not really sure why it says = W two times but anyways:

W is used to represent the weight of something

M is used to represent the mass of something

G is used to represent gravity ( in simple terms )

G more specifically means gravitational acceleration

Note: W can also mean watt but in this case it means weight

:)

\( \underline{\purple{\large \sf Combination \: reaction :-}} \)

Those reaction in which two or more substances combine to form a one new substance are called Combination reaction

In this reaction, We can add :

\( \underline{\green{\large \sf For\: example :}} \)

\( \sf 2H_{2} + O_{2} \: \underrightarrow{Combination} \: 2H_{2}o\)

In this, Hydrogen is an element and Oxygen is another element. Both are combined to form compound 'Hydrogen oxide'. Hydrogen oxide is commonly known as water.

According to Chargaff's rule, the amounts of adenine (A), thymine (T), and guanine (G) in the DNA molecule are equal to each other. The amounts of cytosine (C) and guanine (G) are also equal.

Erwin Chargaff was a biochemist, author, Bucovinian Jew who immigrated to America during the Nazi era, and professor of biochemistry at Columbia University's medical school.

Chargaff found patterns among the four bases, or chemical building blocks, of DNA, which are directly related to DNA's function as the genetic material of living things.

He was born in Austria-Hungary. Heraclitean Fire: Sketches from a Life Before Nature, an autobiography he penned, received positive reviews.

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a) The cost of using the microwave oven for one hour is 6 cents.

b) The cost of using the microwave oven for 20 minutes in a day is 2 cents.

c) The cost of using the microwave oven for 20 minutes a day for a month of 30 days is 59 cents.

a) The microwave oven draws 0.8 kWh of electricity for one hour. The cost of electricity per kWh is 7.5 cents. Therefore, the cost of using the microwave oven for one hour can be calculated as follows:

Cost = 0.8 kWh x $0.075/kWh = $0.06

b) If the microwave oven is used for 20 minutes in a day, the energy consumed can be calculated as follows:

Energy consumed = Power x Time

Power = Energy consumed / Time

We know that the microwave oven draws 0.8 kWh of electricity for one hour. Therefore, the power can be calculated as:

Power = 0.8 kWh / 1 hour = 0.8 kW

The time for which the microwave is used is 20 minutes, or 0.33 hours. Therefore, the energy consumed can be calculated as:

Energy consumed = Power x Time = 0.8 kW x 0.33 hours = 0.264 kWh

The cost of using 0.264 kWh of electricity can be calculated as:

Cost = 0.264 kWh x $0.075/kWh = $0.02

c) If the microwave oven is used for 20 minutes a day for a month of 30 days, the energy consumed can be calculated as:

Energy consumed = Power x Time x Number of days

Power = Energy consumed / Time

Using the same values of power and time as in part b, the energy consumed for 30 days can be calculated as:

Energy consumed = 0.8 kW x 0.33 hours x 30 days = 7.92 kWh

The cost of using 7.92 kWh of electricity can be calculated as:

Cost = 7.92 kWh x $0.075/kWh = $0.59

In summary, the cost of using a microwave oven for electrical energy consumption depends on the power rating of the oven and the cost of electricity per kWh. By calculating the energy consumed and multiplying it by the cost per kWh, one can determine the cost of using the microwave for a particular period of time.

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Answer:

attracting iron and producing a magnetic field

Answer:

Given,

Force = 441 N

mass = ?

Keep in mind that acceleration due to gravity is constant 10m/s.

Force = mass × acceleration due to gravity

mass = Force / acceleration due to gravity

m = 411 N /10m/s

m = 41.1 kg

Therefore her Jenny mass is 41.1 kg.

The distance that automobile travel in 1.5 seconds is (S)= 34.275 m.

Distance is a scaler quantity that refers to "how much ground an object has covered" during its motion of time.

To calculate the distance that automobile travel in 1.5 seconds, we are using the formula,

S= ut+(1/2)at²

Here we are given,

u= The initial velocity of the automobile = 20 m/s

t = The amount of time that the automobile travel = 1.5 Seconds.

a=The amount of acceleration of the automobile = 3.8 m/s².

We have to calculate the distance that automobile travel in 1.5 seconds = S

Now, we put the values in the above equation, we get

S= ut+(1/2)at²

Or, S= 20*1.5+(1/2)*3.8*(1.5)²

Or, S= 30+4.275

Or, S= 34.275m

Thus we can conclude that, the distance that automobile travel in 1.5 seconds is (S)= 34.275 m.

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Answer:

I hope this is correct!

Explanation:

a) work = (force)(displacement)

We know that d = 5m, now we just need to find the force

We need to calculate the acceleration first using a = v^2 - u^2 / 2d

final velocity (v) = 2.1 m/s , initial velocity (u) = 0 m/s , displacement (d) = 5m

a = 2.1^2 - 0^2 / 2(5)

  = 0.441 m/s^2

Now we can find force using f = ma

f = (14kg)(0.441m/s^2)

 = 6.174 newtons

Finally, you can calculate work now that you have force!

work = (6.174n)(5m)

       = 30.87 J (you may need to round sig figs!)

b) Work done by friction = (coefficient of kinetic friction)(mg)(v)

m = 14kg, g = 9.8, coefficient of friction = 0.2

force due to friction = (0.2)(14kg x 9.8)(2.1)

                                 = 57.624 J (again you may need to round to sig figs)

c) Work you perform = total work in direction of motion + work done by friction

total work = 30.87 J, work done by friction = 57.624 J

Work you perform = 30.84 + 57.624

                               = 88.464 J

d) Force you applied = work you performed / distance

work you performed = 88.464 / 5 m

                                   = 17.6929 N (again you may need to round to sig figs)

Hope this helps ya! Best of luck <3

metal and hair I think hope this helps

Answer:

cars and trains

Explanation:

i hope that good