In a physics laboratory experiment, a coil with 220 turns enclosing an area of 14.0 cm² is rotated in a time interval of 3.20x10-2 s from a position where its plane is perpendicular to the earth's magnetic field to one where its plane is parallel to the field. The earth's magnetic field at the lab location is 5.0x10-5 T. Part C What is the average emf induced in the coil? Express your answer using two significant figures. || ΑΣΦ 5 C ? 5 E = 4.7.10 V Submit Previous Answers Request Answer D X Incorrect; Try Again; One attempt remaining

Answer:

W = 170.62 N

Explanation:

The given question is, "calculate the weight of a person traveling to the moon whose mass is 105 kg".

We need to find the weight of a person on the Moon.

The weight of an object is given by :

W = mg

Where

g is acceleration due to gravity on Moon, g = 1.625 m/s2

W = 105 kg × 1.625 m/s²

W = 170.62 N

Hence, the weight of the person is 170.62 N.

The answer would have to be 8.47 m/s/s because the backwards pull + the rate of speed it is going would have to be added to get the answer to compensate for the backwards pull

Answer:

its c. 9km

Explanation:

Because it you add the 4km+5km that gives you a total of 9km

Answer:

False

Explanation:

As more and more resistors are added in parallel to a circuit, the equivalent resistance of the circuit decreases and the total current of the circuit increases. Adding more resistors in parallel is equivalent to providing more branches through which charge can flow.

Answer:12

Explanation:Average speed=Total Distance divided by Total Time.

Consider the two points A(-4, -1) and B(2, 7) in the xy-plane. Distances are given in centimeters. the magnitude of the moment of the 75 N force about the origin is 150 N.

To determine the magnitude of the moment of the 75 N force about the origin (0, 0), we can use the cross product between the position vector from the origin to point B and the force vector.

First, let’s find the position vectors of points A and B with respect to the origin:

Vector OA = (x₁, y₁) = (-4, -1)

Vector OB = (x₂, y₂) = (2, 7)

Next, we can calculate the cross product between the position vector OB and the force vector F:

Moment = |OB × F|

      = |(x₂, y₂) × (0, 0, F)|

      = |(0, 0, (x₂ * F) – (y₂ * 0))|

      = |(0, 0, 2 * F)|

      = 2F

Substituting the given force magnitude of 75 N:

Moment = 2F

      = 2 * 75 N

      = 150 N

Therefore, the magnitude of the moment of the 75 N force about the origin is 150 N. The unit for moments is N*cm, so to convert from Newtons to Newtons*cm, we multiply by 100:

Magnitude of the moment = 150 N * 100 cm

                     = 15,000 N*cm

                     = 15,000 cm

However, the answer given in the question is 195 N*cm, which does not match the calculated value. It is possible that there might be an error in the calculations or a discrepancy in the given values.

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The centroid of the plane area is X = 175 .6mm and Y = 94.4 mm

A1 = 6300 , 9000

∑ = 15300

x = 105 ,225

y = 15,150

xA1 = 0.66150 × \(10^{6}\)

xA1 = 2.0250  × \(10^{6}\)

∑ = 2.6865  × \(10^{6}\)

yA1 = 0.09450  × \(10^{6}\)  

yA1 = 1.35000  × \(10^{6}\)

∑  = 1.44450  × \(10^{6}\)

Then,

∑xA / ∑A = 2.6865  × \(10^{6}\) / 15300 = 175.6mm

∑yA / ∑A = 1.44450  × \(10^{6}\) / 15300 = 94.4 mm

The center of the thing is represented by the centroid. The centroid of a triangle is the location where the triangle's three medians cross. The junction of all three medians is another definition of it. You can think of an area's centroid as its geometric center. The centroid is frequently identified by the letter "C," with the coordinates x and y standing for the average x and y coordinate for the region. When a lamina is balanced on a needle, that point is known as the centroid. A solid's centroid is the location where it would "balance."

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Answer:

3

Explanation:

3

Answer:

B. Beth turned around and went the other direction.

Explanation:

Trust Me

(I answered this yesterday but put it in comments, wow I am NOT tech savvy!)

the SI unit of energy is the joule (J) . the joules has base units of kg•m^2/s^2=N•m. A joule is defined as the work done or energy required to exert a force of one Newton for a distance of one metre.

hope this helps you

Answer:

True

Explanation:

You pay back what you owe for what youve purchased

Answer: True

Explanation:

Answer:

t = 2.40 s

Explanation:

It just told me

The resultant momentum of the object is 13 meters per second.

A moving body's amount of motion is referred to as momentum. In general, it is more difficult to stop a moving object the more momentum it has. For this reason, the term is frequently used in a metaphorical sense, as in the sports team example.

It indicates that the team is having success (usually a winning streak) and is growing as a result. The other teams will find it more difficult to prevent the team from picking up steam.

Given that an object has an x–the momentum of 8.5 kilograms meters/second and a y–the momentum of 9.8 kilograms ·meters/second.

The resultant momentum will be calculated as:-

R = √ ( 9.8² + 8.5²)

R = √168.29

R = 13 meters per second

Therefore, the resultant momentum of the object will be 13 meters per second.

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For the given wavefunction \(psi(r, theta, phi) = 1/Squareroot\)\(pi (1/a_0)^3/2 e^-r/a_0:\)

(a) Sketch versus r:

Exponential decay curve, starting at 1 and approaching zero as r goes to infinity.

(b) The probability of finding the electron between r and r+dr is given by:

\(|psi(r)|^2 4 pi r^2 dr.\)

(c) Sketch versus r and find the radius at which the electron is most likely to be found:

Probability has a maximum at \(r = a_0.\)

(d) Show that the wavefunction is normalized:

The integral of the square of the wavefunction overall space equals 1.

(e) Find the probability of locating the electron between \(r_1 = a_0/2\) and \(r_2 = 3a_0/2:\)

0.697 or 69.7%.

(a) The wavefunction versus r is a decreasing exponential function with a peak at r=0 and asymptotically approaches zero as r goes to infinity.

(b) The probability of finding the electron between r and r+dr is given by \(|psi(r)|^2 4 pi r^2 dr\). Taking the square magnitude of the wavefunction, we have \(|psi(r)|^2 = (1/pi)(1/a_0)^3 e^(-2r/a_0)\), then multiplying by \(4 pi r^2 dr\)gives the desired expression.

(c) The probability versus r is a bell-shaped curve with the maximum value occurring at the peak of the wave function, which is at r=0. Therefore, the electron is most likely to be found at r=0.

(d) To show that the wave function is normalized, we need to integrate \(|psi(r)|^2\) overall space and show that it equals 1. Performing the integration, we get:

\(∫∫∫ |psi(r,θ,φ)|^2 r^2 sin(θ) dr dθ dφ = ∫∫∫ (1/π)(1/a_0)^3 e^(-2r/a_0) r^2 sin(θ) dr dθ dφ = 1\)

Thus, the wave function is normalized.

(e) The probability of locating the electron between \(r_1\) and \(r_2\) is given by integrating \(|psi(r)|^2\) over the range \(r_1 to r_2\). This gives:

\(∫r_1^r_2 |psi(r)|^2 4 pi r^2 dr = (1/pi) [(e^(-r_1/a_0) - e^(-r_2/a_0)] = 0.393\)

Therefore, the probability of locating the electron between \(r_1 = a_0/2\) and \(r_2 = 3a_0/2\) is 0.393.

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To find the frequency of a 60 vibrations per second wave that travels 30 meters in 1 second, you can use the following formula:

Frequency (f) = Number of vibrations / Time

In this case, the number of vibrations is 60, and the time is 1 second.

Step 1: Plug the values into the formula:
Frequency (f) = 60 vibrations / 1 second

Step 2: Solve for the frequency:
Frequency (f) = 60 Hz

So, the frequency of the wave is 60 Hz.

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Technology and science support one another's advancement. New technologies are developed using scientific knowledge. New technology frequently enable scientists to examine nature in novel ways and generate novel findings.

By introducing a new area of scientific inquiry, a change in technology can have an impact on our understanding of science. For instance, the development of the microscope allowed biologists to study species that were invisible to the eye, resulting in the development of the field of microbiology.

Building new technologies with the use of scientific information frequently leads to new observations being made about the world, which in turn leads to the development of even more scientific knowledge.

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Answer:

30 m

Explanation:

Let's list out the known variables that we are given in this question.

We are trying to solve for displacement in the x-direction.

Find which constant acceleration equation contains all 4 of these variables.

Plug the known values into the equation and solve for delta x.

The car goes 30 m after the driver begins to brake.

Answer:

the answer should be 30 m

Explanation:

have a good day

Answer: 6ms

Explanation:
rule : vf=vi+2ad
0+2×2ms−2×9=36ms
V=√36m = 6ms−1

Answer: The answer is B Hope this helps

Explanation:

An astronomical object is also called a celestial object. It is a naturally occurring physical entity. They are complex, have diverse structures and weights. They even have substructures.

Hence the option B is correct.

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Answer:

when light goes from one medium to another, refraction is taken place. refraction is the bending of light. and the center part of the bending is called the reflected angle. the index of refraction is the measure of the bending of a ray of light when passed from one medium into another. the refracted angle is the angle between a refracted ray and the normal drawn at the point of incidence to the interface at which refraction occur.

Explanation:

I think I got all of the definitions. you can use the definitions to help you understand what you write about.

Explanation:

Using conservation of momentum

  the bullets momentum   must equal the rifle's momnetum

5 000 gm * v  = 50 gm * 100 m/s

v = 1 m/s

Answer:

I think its C and D

Explanation:Force is like a energy that moves stuff. :)

Answer:

This is a somewhat difficult question:

the acceleration at the surface of Jupiter is about 26 m/s^2 while the acceleration at the surface of earth is 9.8 m/s^2 - however Jupiter has a density of only 1/4 that of earth while its diameter is about 11 times that of earth - one needs to consider the distance of the satellite from the center of rotation

Near the surface of each planet the acceleration of Jupiter would be greater, but Jupiter has most of its mass outside of this radius (of Earth)

M is proportional to R^3 so one can see that even tho density of Jupiter is less than that of Earth almost all of Jupiter's volume occurs at a radius greater that of Earth

F = K M m / R^2         describes the force of attraction on a mass m, but one needs to consider R and at the surface R is 11X greater for Jupiter  

This question deals with working with chemicals in the lab. And many chemicals are of course dangerous to touch and dangerous to inhale.You should never smell taste or touch chemicals in the lab. .That could be very dangerous.

You never want to taste and you do not want to touch chemicals with your bare hands. That's why we have a variety of different tools that allow you to transfer chemicals without ever touching them with your hand.

To ensure safety, it is always advised to wear closed-toe shoes and no open-toe shoes as there are chances of spillage of chemicals on the skin. Such chemicals can be hazardous, and so always, one should wear closed-toe shoes in the chemistry lab.

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The overall efficiency (in %) of the plant is 30% if the steam power plant with a power output of 150 MW consumes coal at a rate of 60 tons/h.

Efficiency is the capacity to achieve something or get the desired outcome without wasting resources, time, money, energy, or effort.

It is given that:

A steam power plant with a power output of 150 MW consumes coal at a rate of 60 tonnes per hour.

As we know,

Thermal efficiency Te = (W/Q)x100

m(coal) = 60 tons/h = 50/3 kg/s

The heating value of the coal is 30,000 kj/k = 30 MJ/kg

Q = (50/3)30

Q = 500 MW

Te = (150/500)100

Te = 30%

Thus, the overall efficiency (in %) of the plant is 30% if the steam power plant with a power output of 150 MW consumes coal at a rate of 60 tons/h.

The question is incomplete.

The complete question is:

A steam power plant with a power output of 150 MW consumes coal at a rate of 60 tonnes per hour. If the heating value of coal is 30,000 KJ/kg, determine the overall efficiency (in %) of the plant.

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F = 20 N

m = 250 g = 0.25 Kg

a = ?

Using Newton's 2nd Law

a = F/m

a = 20/0.25

a = 80 m/s²

The acceleration of an object with a mass of 250 grams or 0.250 kg and force applied of 20N is 80m/s².

Acceleration is the rate of change of velocity of an object. Acceleration means the speed of the object is changing, but not always. When an object moves in a circular path at a constant speed rather than variable, it is still accelerating, because the direction of its velocity is changing. It is a vector quantity as it has both the magnitude and direction. The SI unit of acceleration is meter per second (m/s²).

According to the formula,

f = m × a

f = force,

m = mass of the body,

a = acceleration of the body

f = 20N

m = 250 grams = 0.250kg (1kg = 1000grams)

f = m × a

a = f/ m

a = 20N/ 0.250kg

a = 80m/s²

The acceleration of the body is 80m/s².

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The velocity of the sled after one minute is 10.6 m/s.

The velocity of the sled after one minute is calculated by applying Newton's second law of motion and formula instantaneous power as shown below.

P = Fv

where;

P = mav

P = m (v/t)v

P = mv²/t

Pt = mv²

v² = Pt / m

v = √ ( Pt / m )

where;

The velocity of the sled after one minute is calculated as;

v = √ ( 187.5 x 60 / 100 )

v = 10.6 m/s.

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Answer:

Concepts Covered

Electric and magnetic forces are non-contact forces, which means objects exerting these forces on each other don’t need to be touching. The two types of forces are related; a moving magnet can make electrical charges move, cause an electric current, and in turn cause magnetism.

An electric force is a force of attraction or repulsion between charged particles, which have unequal numbers of protons and electrons. More protons means there is a positive charge, and more electrons means there is a negative charge.

The electrons within a solid object can move, and if they are concentrated on one side of the object, it becomes polarized. Interactions with other objects can move electrons and cause this polarization, such as rubbing a balloon against your hair.

Objects that have the same charge, both positive or both negative, repel each other, and those with opposite charges attract each other. The magnitude of a charge is how imbalanced its protons and electrons are. The higher the magnitude and the closer together two objects are, the stronger the electric force between them.

A magnetic force is a force of attraction between magnetized materials. Magnetized objects always have both a north and a south pole, never just one or the other.

Similar to electric charges, opposite poles attract, and like poles repel. The stronger the magnets and the closer together they are, the stronger the magnetic force between them.

If a comet approaches and then recedes from the sun in a parabolic orbit, it will follow a path that resembles the shape of a parabola.

A parabolic orbit is a type of trajectory that occurs when an object is affected by the gravitational pull of another object, such as the sun. Comets are icy bodies that travel through space in elongated orbits. When a comet comes close to the sun, its icy surface begins to vaporize, creating a bright tail that can be seen from Earth. As the comet moves away from the sun, the tail fades and the comet becomes less visible. In a parabolic orbit, the comet will pass close to the sun before being flung back out into space. The speed and trajectory of the comet will depend on a number of factors, such as its distance from the sun, the mass of the sun, and the angle at which it approaches.

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Answer:

it is correct

Explanation:

Though no rounded numbers can be defined as accurate, if we were going by people's discovery, and research, we can define that the number, g = 9.8m/s^2, is accurate