what bo you nmean by ABC rule ?​

Answer:

P = I^2 R = V I

V = P / I = 6.0E13 J/s / 8.0E6 C/s = 7.5E6 J/C = 7.5E6 volts

Answer:

785 N

Explanation:

To solve this problem, we can use the principle of conservation of mechanical energy, which states that the total mechanical energy of a system is constant if there are no external forces doing work on the system. In this case, the only force acting on the cyclist is the normal force, which is perpendicular to the surface of the hill and does not do any work. Therefore, the total mechanical energy of the system (cyclist + bicycle) is constant.

The initial total mechanical energy of the system is:

Ei = mgh + (1/2)mv^2

where m is the total mass of the system, g is the acceleration due to gravity, h is the height of the hill, and v is the initial speed of the cyclist.

In this case, the hill has a slope of y = 0.2e^x, so we can use calculus to find the height of the hill:

h = ∫y dx from x = 0 to x = 5

h = ∫(0.2e^x) dx from x = 0 to x = 5

h = 0.2(e^5 - 1)

h ≈ 35.3 m

Substituting the given values, we get:

Ei = (80 kg)(9.81 m/s^2)(35.3 m) + (1/2)(80 kg)(15 m/s)^2

Ei ≈ 30,736 J

The final total mechanical energy of the system is:

Ef = mgh + (1/2)mv^2

where v is the final speed of the cyclist.

Since the cyclist is coasting freely, there is no external force doing work on the system, so the total mechanical energy is conserved:

Ei = Ef

Solving for v, we get:

v = sqrt((2/m)(Ei - mgh))

v = sqrt((2/80 kg)(30,736 J - (80 kg)(9.81 m/s^2)(35.3 m)))

v ≈ 28.5 m/s

The rate of increase in speed is:

v' = (v - 15 m/s)/t

where t is the time interval shown in the problem (not given).

We cannot solve for v' without knowing the value of t.

To find the normal force N, we can use Newton's second law, which states that the net force on an object is equal to its mass times its acceleration:

N - mg = 0

where g is the acceleration due to gravity.

Solving for N, we get:

N = mg

N = (80 kg)(9.81 m/s^2)

N ≈ 785 N

Therefore, the resultant normal force on the bicycle is approximately 785 N.

The aspect of the US justice system that has its roots in Jewish scripture is:

the idea that all people are subject to the same rules and laws.

It is the doctrine of "equality before the law."  Equality before the law means that every individual is equal in the eyes of the law, whether the individual is a lawmaker, a judge, a law enforcement officer, etc.  Equality before the law is also known as equality under the law, equality in the eyes of the law, legal equality, or legal egalitarianism.  It is a legal principle that treats each independent being equally and subjects each to the same laws of justice and due process.

Answer:

answer is C

the idea that all people are subject to the same rules and laws

Explanation:

hope this helps!

Answer:

Holes are formed when electrons in atoms move out of the valence band (the outermost shell of the atom that is completely filled with electrons) into the conduction band. (the area in an atom where electrons can escape easily) which happens everywhere in a semiconductor. When an electron and a hole interact and recombine the energy is not transferred into heat energy or thermal vibrations. instead the energy is transferred into an electron within the conduction band which is then promoted to an energy higher in condition band.

Explanation:

So considering that information, electrons and holes make a semiconductor when moving.

Answer:

The answer is B.

Explanation:

مافيني اشرح

Answer:

The equation of momentum for a linear system is simply P = mv where P = momentum (kg·m/sec or lb·ft/sec); m = mass (kg or lb); and v = velocity (m/s or ft/sec). ... By reducing her inertia (I = mr2 where r has been decreased) her angular velocity, ω, must increase in order for the angular momentum to remain constant.

https://www.gstatic.com/education/formulas2/355397047/en/moment_of_inertia.svg

hope this helps?

Explanation:

Answer: Short Answer: NO ( In Most Cases)

Explanation:

If that were true then planes couldn't get off the ground to fly. The front of the wing is cutting/pushing the air. On the top of the wing the air moves faster and on the bottom it moves slower making a upward draft giving the object the ability to fly or glide.

Answer:

como  ías

Explanation:

Answer:

British East India Company

The battle was fought at Buxar, a "small fortified town" within the territory of Bihar, located on the banks of the Ganga river about 130 kilometres (81 mi) west of Patna; it was a decisive victory for the British East India Company.

The angular speed of the long-play (LP) in rad/s is 3.49rads/s and its period in seconds is 1.80 seconds.

To convert the angular speed from revolution per minutes (rpm) to seconds the following formula is used:

ω = (k revolution/60 seconds) x (2π/1 revolution)

ω = 2πk/60seconds (k x 2π/T in seconds)

where, k = constant in rpm, 33 1/3rpm = 33.3333rpm

ω  = 2π33.3333/60 = 209.4374/60

ω  = 3.49rad/s

For period in seconds, ω = 2π/T

where, T = period and ω = angular speed, 3.49rad/s

To find T, T = 2π/ω

T = 2π/3.49rad/s

T = 1.80s

Using the formula, ω = 2πk/60seconds, the angular speed in rad/s of the LP is 3.49rad/s and the time period for the records using T = 2π/ω is 1.80s.

The full question is:

The once-popular LP (long-play) records were 12 inches in diameter and turned at a constant 33(1/3) rpm. Find the angular speed of the LP in rad/s and its period in seconds.

Learn more on angular speed here: https://brainly.com/question/6860269

#SPJ1

Answer:

a = 2 m/s²

Explanation:

If we rearrange the circuit so that the inductor and capacitor were connected in series,the impedance would be  Decreased and the resonant frequency would be unchanged.

Frequency is the rate at which something occurs over a particular period of time or in a given sample.

Sol-An LC circuit is made up of an inductor (L) and a capacitor (C). At the resonance condition of the LC circuit, the inductive reactance XL. becomes equal to the capacitive reactance Xc.

It is defined as-

XL= 2πfL

Xc= 1/2πfC

So when reactances are equal we have-

XL=Xc

2πfL= 1/2πfC

f^2=1/4π^2LC

f=1/2π√LC

The resonance condition is the same for both the parallel and series LC circuit, so the resonance frequency will not change.

The impedance of a parallel LC circuit is:

Z(w)= jL w^2-w^2•/w

In a series LC circuit, when w

, the impedance becomes equal to 0.

Therefore the impedance of a series LC circuit will decrease and the resonant frequency will remain the same.

To know more about frequency click-

https://brainly.com/question/254161

#SPJ1

Answer:

A,B,C,D, and F are correct

Explanation:

Answer:

Explanation:

A,B,C,D, and F

Given:

The student lifts her body with a force F = 400 N

The distance is d = 0.25 N

The time is t = 2 s

To find: The power delivered by student's biceps.

Explanation:

The formula to calculate power is

Substituting the values, the power will be

Final Answer: The power delivered by student's biceps is 50 W.

Answer:

Explanation:

The period of the wave will be 2 minutes

frequency = 1 / period

= 1 / 2

= .5 per minute

Based on the information, it should be noted that the resistance R is 0.5 Ω.

When S1 and S2 are open, i leads e by 30°. In this case, the circuit consists of only the inductor (L) and the capacitor (C) in series. Therefore, the impedance of the circuit can be written as:

Z = jωL - 1/(jωC)

Since i leads e by 30°, we can express the phasor relationship as:

I = k * e^(j(ωt + θ))

Z = jωL - 1/(jωC) = j(120π)L - 1/(j(120π)C)

Re(Z) = 0

By equating the real parts, we get:

0 = 0 - 1/(120πC)

Let's assume that there is a resistance (R) in series with the inductor and capacitor. The impedance equation becomes:

Z = R + jωL - 1/(jωC)

Z = R + jωL

Im(Z) = ωL > 0

Substituting the angular frequency and rearranging the inequality, we have:

120πL > 0

L > 0

This condition implies that the inductance L must be greater than zero.

When S1 and S2 are closed, i has an amplitude of 0.5 A. In this case, the impedance is:

Z = R + jωL - 1/(jωC)

Since the amplitude of i is given as 0.5 A, we can express the phasor relationship as:

I = 0.5 * e^(j(ωt + θ))

By substituting this phasor relationship into the impedance equation, we can determine the value of R. The real part of the impedance must be equal to R:

Re(Z) = R

Since the amplitude of i is 0.5 A, the real part of the impedance must be equal to 0.5 A: 0.5 = R

Therefore, the resistance R is 0.5 Ω.

Learn more about resistance on

https://brainly.com/question/17563681

#SPJ1

Answer:

-20v

Explanation:

Data provided in the question as per the given situation

L = 45 mH

f = 250 Hz

V_o = 20V

Based on the above information, let us assume voltage across inductor be V at t

So,

\(V = 20 sin (2 \pi \times 250\times t + \frac{\pi}{2})\)

t = 2 ms

Now

The voltage at time t = 2.0 ms is

\(V_1 = 20 sin (500\times 2\times 10^{-1} \times \pi + \frac{\pi}{2})\)

\(= 20 sin(\pi + \frac{\pi}{2} )\)

= -20 volt

= -20v

We simply solved the above equation so that the correct voltage could come

The the voltage at time (t) = 2.0 ms is equal to -20 Volts.

Given the following data:

To determine the the voltage at time (t) = 2.0 ms:

In an AC source, the voltage across the inductor is given by the formula:

\(V = Esin(2\pi ft + \frac{\pi}{2} )\)

When time (t) = 2.0 ms:

\(V = 20sin(2\pi \times 250 \times 0.002+ \frac{\pi}{2} )\\\\V = 20sin(\pi + \frac{\pi}{2} )\\\\V = 20sin(270)\\\\V=20 \times -1\)

Voltage = -20 Volts.

Read more: https://brainly.com/question/15121836

In order to calculate the change in volume, we can use the relation below:

If the pressure remains the same and the temperature increases by 2.53x, we have:

Therefore the volume also changes by a factor of 2.53.

the kinetic energies of the particles (atoms,molecule,or ions)that make up up a substance. kinetic energy tends to keep the particles moving apart.

the attractive inter molecular forces between particles that tends to draw the particles together.

9.8 N is the magnitude of the force that maintains circular motion acting on the puck.

32.53 m/sec is the linear speed of the puck.

The term "force" has a specific meaning in science. At this level, it is quite acceptable to refer to a force as a push or a pull. An item does not have a force inside of it or within it. Another item applies a force to another. The concept of a force is not restricted to living or non-living entities. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.

As we know, from free body diagram, when the system is in equillibrium, the force acting on the puck on the table is as follows:

When the air puck of mass is revolving round the circle, then the tension (T) in the top string and the bottom of the string is same.

F = T

F = 9.8 N

Now, calculate the velocity of the puck:

From the given data, the air puck moves in a circular path. Hence, the tension in the top string is equal to the centripetal force acting on the puck.

Thus, the expression for the tension in the top string is as follows:

T = mv² / R

The velocity of the puck is as follows:

Mg = mv² / R

v² = MgR / m

v² = (2.7 × 9.8 × 1.2 ) / 0.030

v² = 1058.4

v = \(\sqrt{1058.4}\)

v = 32.53 m/sec

To know more about force refer to:

https://brainly.com/question/12785175

#SPJ1

Answer:

Angular acceleration of the disk ∝ = K

Explanation:

Given that;

Angular velocity function given by ω = Kt + L

Angular acceleration of the disk at t=T is = ?

Now,

Angular velocity;

ω = Kt + L

Angular acceleration is;

∝ = dω / dt

= \(\frac{d}{dt}\) ( Kt + L )

At t = T

∝ = K

Because  ∝  is not dependent on t

Therefore

Angular acceleration of the disk ∝ = K

Answer:

b

Explanation:

The answer is B. Why is the ocean floor not flat and smooth like the bottom of a bathtub?

Scientists were surprised to find that the ocean floor was not a flat and featureless plain, but rather had mountains, valleys, and other geological features. This discovery raised questions about how these features formed and what processes were involved. Scientists began to investigate the causes of these features, such as plate tectonics and volcanic activity, and how they might have shaped the ocean floor over millions of years. Understanding the complex and dynamic nature of the ocean floor has since become an important area of study in earth science and oceanography.

The tension in the strings are 31.47 and 19.25 N respectively.

Mass of the block, m = 3 kg

From the figure, consider the vertical components,

T₁ sin45° + T₂ sin30° = mg

(T₁/√2) + (T₂/2) = 3 x 9.8 = 29.4

Also, consider the horizontal components,

T₁ cos45° = T₂ cos30°

T₁/√2 = T₂ x√3/2

T₁ = T₂ x √3/2 x √2

So,

T₁ = 0.612T₂

Applying in the first equation,

(T₁/√2) + (T₂/2) = 29.4

(0.612T₂/1.414) + 0.5T₂ = 29.4

0.434 T₂ + 0.5 T₂ = 29.4

0.934 T₂ = 29.4

Therefore, the tension,

T₂ = 29.4/0.934

T₂ = 31.47 N

So, the tension,

T₁ = 0.612 T₂

T₁ = 0.612 x 31.47

T₁ = 19.25 N

To learn more about tension, click:

https://brainly.com/question/30037765

#SPJ1

Answer:

Find the letter below.

Explanation:

                                                                                   5183 Richmond Avenue,

                                                                                   Houston City,

                                                                                   Texas, U.S.A.

                                                                                   16th November 2020.

Dear Jane,

I received with joy the news of your admission into Texas City High School, my alma mater. This is a big feat and evidence of your hard work and commitment to your academics. To excel in this school, there are certain points which I would like you to note.

First, this is a new phase of your life and it would be important for you to clearly keep your purpose for going to school in mind. Your foremost purpose is to study and gain the needed knowledge that would help you in life.

Secondly, the school is a very sociable environment with lots of interesting activities such as sports, dancing, literary groups, and so many others. Find a group that appeals to you and participate actively in it. Extracurricular activities would help you socialize with your mates and teachers. It would also help you meet interesting people who might later serve some useful purpose in your life after graduation.

The teachers at Texas City High School are very kind and willing to help you excel in your academics and other chosen fields. Be sure to respect them and meet them when you have difficulties in any area of concern. There are also counselors that guide you and help you to remain on the path to excellence.

My dear Jane, life in Texas City High School would not always be rosy as there are bullies in school who would want to intimidate you or get you into fights. Avoid them by all means. Be cordial to all. Report any cases of harassment to the relevant authorities for they are seasoned in handling such matters maturely.

The cafeteria is also an interesting feature of the school. There you can find different kinds of snacks that I know you would love given how much you love snacks. I would only recommend that you make healthier choices so that you do not become overweight or fall ill due to overindulgence in unhealthy meals.

My dear baby girl, be assured of my love and kind wishes as you move on to this next stage of your life. Always know that I am here to give you my advice when you need it. Be a good girl my dear sister. Do have a lovely time at school.

Yours lovingly,

Queen Walters.

The masses of the two objects MA and MB in the binary system are 4 Mo respectively.

The masses of binary systems can be calculated using Kepler's laws of planetary motion and observations of the system.

Let's denote the masses of the two objects as MA and MB, where MA is the mass of object A and MB is the mass of object B. We know that the total mass of the binary system is 8 Mo, so:

MA + MB = 8 Mo

We also know that the ratio of the distances between the two objects is 1/3. Let's denote the distance between the two objects as d, so we have:

d(A to B) / d(Binary System) = 1/3

We can simplify this equation by using the fact that the distances between the objects and the binary system add up to the total distance between the objects:

d(A to B) + d(B to binary system) = d(Binary system)

Since we know the ratio of the distances, we can substitute 1/3d for d(B to binary system):

d(A to B) + 1/3d = d(Binary system)

3d(A to B) + d = 3d(Binary system)

Substituting d(A to B) for d(Binary system) - d(B to binary system), we get:

3d(A to B) + d = 3(d(A to B) + d(B to binary system))

2d(A to B) = 2d(B to binary system)

d(A to B) / d(B to binary system) = 1

So the two objects are at the same distance from the binary system center of mass. This means that the masses of the two objects are equal:

MA = MB

Substituting this into the first equation, we get:

2MA = 8 Mo

MA = MB = 4 Mo

Therefore, the mass of each object is 4 Mo.

Learn more about the mass of binary systems at: https://brainly.com/question/30128089

#SPJ1

Since the  refractive index of the core is higher than that of the cladding, light in the core striking the cladding boundary at an angle steeper than the critical angle is reflected back into the core by total internal reflection.

to learn more about refractive index from the given link:

https://brainly.com/question/23750645

#SPJ1