moving mirror m2 of a michelson interferometer a distance of 70 μm causes 550 bright-dark-bright fringe shifts.

Answer:

The time taken before the axe hits the ground is 0.385 s.

Explanation:

Given;

initial velocity, u = 50 m/s

height above ground, h = 20 m

To determine the time taken before the axe hits the ground, apply the following kinematic equation;

h = ut + ¹/₂gt²

20 = 50t + ¹/₂(9.8)t²

20 = 50t + 4.9t²

4.9t² + 50t - 20 = 0

Solve this quadratic equation;

a = 4.9, b = 50, c = -20

t = 0.385 s

Therefore, the time taken before the axe hits the ground is 0.385 s.

Answer:

C. The distance traveled by an object at a certain velocity.

Explanation:

YW!

Answer:

third option is the most accurate

The voltage of the circuit is 13 - 8j volts.

The circuit has a current of 5 + j^3 amps, which can be written as 5 + 3j + j^2.

The resistance is 3 - j^2 ohms, which can be written as 3 - 2j + j^2. The voltage of the circuit is calculated by multiplying the current by the resistance.

In this case, the voltage is 5 * 3 - 5j + 3j^2 - 2j^3 + j^4.

The imaginary unit j is defined as the square root of -1.

This means that j^2 = -1 and j^3 = -j.

Substituting these values into the expression for the voltage, we get 15 - 7j + j^2 - j^3 + j^4.

Simplifying the expression, we get 15 - 7j + 1 - j - 1 = 13 - 8j.

Therefore, the voltage of the circuit is 13 - 8j volts.

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With the given information on Marcia who is an electrical engineer who is testing the voltage of a circuit, the voltage of the circuit is 12 - 7j volts.

The voltage of the circuit is given as

voltage = (current) x (resistance)

First, multiply the complex current and resistance values together using the distributive law and the fact that the square of the imaginary unit j is -1.

(current) x (resistance) = (5+j3) x (3-j2)

= 5 x 3 + 5 x (-j2) + j3 x 3 + j3 x (-j2)

= 15 - j10 + 3j - 3

Simplify this expression, we get:

(5+j3) x (3-j2) = 12 - 7j

Plug this value into the voltage formula

voltage = (current) x (resistance) = (12 - 7j) volts

Therefore, the voltage of the circuit is 12 - 7j volts.

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Question is incomplete, find the complete question below

Marcia is an electrical engineer who is testing the voltage of a circuit given a certain current and resistance. She uses the following formula to calculate voltage: voltage = (current) (resistance) The circuit she tests has a current of5+j3 amps and a resistance of3-j2 ohms. What is the voltage of the circuit? 0 1 1 +Jl volts 0 21 +.l volts 0 21 'Jl volts 0 11—.lvolts

when giving a rescue breath, you should blow in for about 1 second and make the chest clearly rise (option-b).

Give two rescue breaths for each round of 30 chest compressions. Gently tilt the person's head, then with two fingers, raise the chin. Grab the individual by the nose. You should place your mouth over theirs and blow into their mouth for about a second while being steady and forceful.

emergency breathing The head-tilt, chin-lift technique should be used to open the airway. To create a seal, cover the person's mouth with yours and pinch their noses shut so they can breathe through their mouths. First, rescue the victim with a one-second breath, and then check to see whether the chest rises.

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Because it is close enough to us that the distance to the cluster stars can be determined by stellar parallax, the hyades cluster is crucial for compiling a catalogue of the true luminosities of main-sequence stars.

Few stars in the Hyades cluster have unusually high or low masses, and its main sequence turn-off is roughly 2.3 solar masses. This suggests that the Hyades cluster's heavier stars have transformed into giants, subgiants, and white dwarfs.

The apparent movement of any close star (or other object) in relation to more distant ones is known as stellar parallax. The very little change that has been noticed is caused by Earth's various orbital positions, and it is most pronounced at intervals of roughly six months when Earth arrives at the exact opposite end of the spectrum. Is called stellar parallax.

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Answer:

mechanical energy

Explanation:

Sound energy is the result when a force, either sound or pressure, makes an object or substance vibrate. That energy moves through the substance in waves. Those sound waves are called kinetic mechanical energy.

Answer:

Total momentum = 16 Kgm/s

Explanation:

Let the momentum of the two balls be A and B respectively.

Momentum A = 16 kgm/s

Momentum B = 0 kgm/s (since the ball is at rest).

Total momentum = A + B

Total momentum = 16 + 0

Total momentum = 16 Kgm/s

Momentum can be defined as the multiplication (product) of the mass possessed by an object and its velocity. Momentum is considered to be a vector quantity because it has both magnitude and direction.

Mathematically, momentum is given by the formula;

\( Momentum = mass * velocity \)

Total momentum of both the balls after the collision is 16 Kg.m/s

Given:

Momentum= 16 kg.m/s

To find:

Total momentum of both the balls after the collision.

What is momentum?

 Consider the momentum of the two balls be A and B respectively.

Momentum A = 16 kg.m/s

Momentum B = 0 kg.m/s (since the ball is at rest).

Total momentum = A + B

⇒ 16 + 0

Total momentum= 16 kg.m/s

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Given that the inner conductor's radius is 5 cm and the outer conductor's inner radius is 10 cm, a 3 m long, air-filled section of a coaxial transmission line contains 208I²of magnetic energy in the insulating medium.

Moving the charge of the electrons in various particles is what creates magnetic energy. The behavior of the electron, which is similar to that of a small magnet, is caused by the movement that creates the current. The earth also has a magnetic field that produces magnetic energy there.

Equation describes the magnetic energy stored in the air-filled insulating medium of a 3 m long coaxial cable.

\(W_{m}\) = LI²/2 J.

Equation describes the longitudinal inductance of a coaxial transmission line, and we must now write an expression for it.

L' = µ₀/2π ln (b/a)(H/m),

The longitudinal inductance of a coaxial cable is obtained by dividing the unit inductance by the transmission line's length (3 m).

L = 3L' = 3 µ₀/2π ln (b/a)(H)

L = 3 4π ×10⁻⁷/2π.ln(0.1/0.05)

L = 415.8×10⁻⁹ (H)

Hence

\(W_{m}\) = 415.8×10⁻⁹I²/2

\(W_{m}\) = 208 I²

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Answer:

Hiệu điện thế U=10 V được đặc vào giữ hai đầu một điện trở có giá trị R=25 Q cường độ dòng điện trở bằng bao nhiêu

Answer:

I'm sorry I can't help you...

Answer:

how long she can run how fast she can run

Answer:

multiply 65kg and 3m/s^2

to get 195kgm/s

or 195N

wait is that 3m/s or 3m/s^2?

Answer:

(1) - v(t) = 9.18t - 1.12

(2) - a(t) = 9.18 m/s²

Explanation:

We are given the position function, y(t) = 4.59t² - 1.12t + 0.03. We are asked to determine the following:

\(\hrulefill\)

To find the velocity function simply take the derivative of the position function.

y'(t) = v(t) = 9.18t - 1.12

Using the graph we can find the object's initial velocity by pugging in t=0.220 s.

=>  v(0.220) = 9.18(0.220) - 1.12

=>  v(0.220) = 0.8996 m/s \(\hrulefill\)

To find the acceleration function either take two derivatives of the position function or one of the velocity function.

y''(t) = v'(t) = a(t) = 9.18 m/s²

Thus, the object is speeding up with constant acceleration.

Answer: If i'm not mistaken I think it A) potential

Answer:

\(\fbox {3.6kW}\)

Explanation:

Formula used :

\(\boxed {P = F \times v} \leftarrow \rightarrow \boxed {P = \frac{F \times S}{t}}\)

Given :

⇒ F = 6 × 10³ N

⇒ S = 18 m

⇒ t = 30 s

Solving :

⇒ P = 6 × 10³ × 18 / 30

⇒ P = 2 × 100 × 18

⇒ P = 3600 W

⇒ P = 3.6kW

The coordination of the rocket relative to its firing point is 688.32m and 277.44m.

What is coordination?

The purpose of organizing people or groups so they work together properly.

Sol-

The X and Y coordinates of the rocket relative of firing

As per the given question

Velocity (vi)=100ms-1

Angle=55.0

Time (t)=12

The horizontal range of projectile at X is

X=vxi×t

x=vi×cos×t

Now substituting the required value we get

X=300×cos 55×12

X=100×0.5756×12

X=688.32 m

Now substituting the recauird value

We get

Y= 983.04-705.6

Y=277.44m

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The average random error in V that is needed to enable your data to be consistent with the theory is 4%.

When answering questions as a question-answering bot on the Brainly platform, one should always be factually accurate, professional, and friendly. Moreover, one should be concise and not provide extraneous amounts of detail.

In this article, we are going to answer the questions based on the experiment of finding e/m for the electron by utilizing a cathode-ray tube. We will also discuss systematic errors and the effect of these errors on e/m expressed as a percent.

Is there evidence of systematic errors? If so, what is the effect on e/m expressed as a percent?There are some evidence of systematic errors which can affect the accuracy of our results. One of the most common systematic errors is the errors due to zero error. Due to these errors, the e/m value can be lower than the true value.

The effect of systematic errors on e/m can be expressed as a percent by using the formula:| (e/m - e/m true value) / (e/m true value) | * 100For example, if the true value of e/m is 1.76 x 10^11 Coulomb/kg and we measure it as 1.67 x 10^11 Coulomb/kg,

then the percent error will be:| (1.67 x 10^11 - 1.76 x 10^11) / 1.76 x 10^11 | * 100= 5.11%After you subtract out any systematic error, what is the average random error in V that is needed to enable your data to be consistent with the theory? Express as a percent.

The average random error in V can be determined by finding the standard deviation of the mean.

The formula for standard deviation is:σ = √((Σ(x - µ)^2) / N)Where x is the measured value, µ is the mean, and N is the number of measurements. The percent error can be calculated by using the formula:(σ / µ) * 100For example,

if the standard deviation of the mean is 2 volts and the average voltage is 50 volts, then the percent error will be:(2 / 50) * 100= 4%

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Answer:Shape

I took the quiz

Answer:shape

Explanation:

I took the quiz

Answer:

considering that a space shuttle travels 7,850 m/s and it traveled 40 seconds it would be 314,000 I think this is the right answer

Explanation:

When you are working on a magnetic levitation experiment in a lab and beta radiation is emitted directly at you, passing through the magnets first, you are not safe because it was beta radiation and very dangerous.

The correct answer is option a.

Beta radation is a form of ionizing radiation that is made up of high-energy beta particles. Beta particles are high-energy, high-speed electrons or positrons that are emitted by certain radioactive isotopes. The emission of beta radiation from radioactive materials is referred to as beta decay.

Beta particles, unlike alpha particles, have a longer range and can penetrate through paper, skin, and other low-density materials but can be blocked by high-density materials.

Therefore, option a is correct.

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A given convex lens has a focal length that varies slightly with the wavelength of the light passing through it. when the a lens is used as the objective of a telescope, this results in chromatic aberration.

Chromatic aberration is a phenomenon in which light rays passing through a focus of lens at different points, depending on their wavelength. It is a failure of a lens to focus all colors to the same point. It is also called chromatic distortion and spherochromatism. The focal length of the lens varies directly with the wavelength of the light so focal length increases with wavelength but decreases with refractive index as wavelength is inversely related to it. This is the principal cause of chromatic aberration phenomena.

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The momentum of block A is calculated by multiplying its mass (2 kg) with its velocity (50 m/s). Therefore, the momentum of block A is 100 kg·m/s.

Momentum is a fundamental concept in physics that quantifies the motion of an object. It is defined as the product of an object's mass and its velocity. In this case, block A has a mass of 2 kg and is moving along the positive x-axis with a speed of 50 m/s. To find the momentum, we multiply the mass and velocity: 2 kg * 50 m/s = 100 kg·m/s.

Momentum represents the quantity of motion possessed by an object and accounts for both its mass and how fast it is moving. The larger the mass or velocity, the greater the momentum. When considering momentum, direction is also crucial, as it is a vector quantity. In this scenario, since the block is moving along the positive x-axis, the momentum is positive.

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H = Pu / P x 100% = 360/750 x 100% = 48%

P/s: Pu is the useful power outlet of the leaf blower

P is the total power input to the leaf blower

ok done. Thank to me :>

Answer:

6

Explanation:

120/30=6

Answer:

It's a non-metal

Explanation:

100%

Answer:

(Question) If only an element’s atomic number and weight are provided, what other atomic information can be determined for a neutral atom?

(Answer) the number of protons, electrons and neutrons

(Question) What quality differentiates hydrogen (H) from the other elements in group 1, the alkali metals?

(Answer) It is a non-metal.

(Question) On which atomic property proposed by Henry Moseley is the current periodic table of the elements based?

(Answer) atomic number

(Question) You plan to pass alpha particles through a field that contains a consistent type of particle. Which configuration will result in the largest deflection of alpha particles?

(Answer) low-energy alpha particles passing through a field of high mass-number-particles

(Question) Which statement about metals and nonmetals is correct?

(Answer) Metals can be hammered into thin sheets, and nonmetals are brittle.

(Question) Based on properties of elements in the periodic table, which element is the best conductor of thermal energy?

(Answer) vanadium (V)

(Question) Which element has four valence electrons?

(Answer) silicon (Si)

(Question) Which statement best explains why hydrogen’s atomic number is equal to its mass?

(Answer) Hydrogen does not have any neutrons.

(Question) Which statement correctly compares the valence electrons for atoms of francium (Fr) and barium (Ba)?

(Answer) Francium has fewer valence electrons, but they are in a higher energy level.

(Question) Why are the noble gases the least reactive elements?

(Answer) They have a full valence electron shell.

(Question) Group 2 elements have two valence electrons. Which kind of bond will they most likely form, and why?

(Answer) An ionic bond is likely because they will want to give away two valence electrons in order to become stable.

(Question) How many electrons can carbon accept from other atoms while bonding?

(Answer) four

(Question) An element has six valence electrons. Which ionic charge will its ion carry?

(Answer) 2-

Questions 14, 15, & 16 are written responses good luck.

Explanation:

UwU

If a motor car is traveling at a steady speed of 30m/s then the work done by the car each second against the force of air resistance is 48,000 J.

To calculate the work done by the car each second against the force of air resistance, we need to use the formula for work, which is:

work = force x distance

In this case, the distance is not given, but we know that the car is traveling at a steady speed of 30m/s. We can use this information to calculate the distance traveled in one second:

distance = speed x time
distance = 30m/s x 1s
distance = 30m

Now we can calculate the work done by the car against the force of air resistance:

work = force x distance
work = 1600N x 30m
work = 48,000 J

Therefore, the work done by the car each second against the force of air resistance is 48,000 J.

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The semi-major axis of the planet's orbit is equal to 4 AU.

Given the following data:

Kepler's third law of planetary motion states that the square of any planetary body's orbital period (T) is directly proportional to the cube of its orbit's semi-major axis (a).

Mathematically, Kepler's third law of planetary motion is given by this formula:

\(T^2 =a^3\)

Where:

Substituting the given parameters into the formula, we have;

\(8^2 =a^3\\\\a^3=64\\\\a=\sqrt[3]{64}\)

a = 4 AU.

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The total travelled distance is • Speed, time and distance is one of the most common and important topics in the Mathematics or Quant section.

Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is travelling along a path. In other words, velocity is a vector, whereas speed is a scalar value.

For instance, 50 km/hr west denotes the velocity of a car whereas 50 km/hr (31 mph) denotes the speed at which it is moving down a route.

The average speed of an object is determined by dividing the distance traveled by the amount of time it takes the object to reach the distance.

Therefore, The total travelled distance is • Speed, time and distance is one of the most common and important topics in the Mathematics or Quant section.

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