a magnetic field of 0.080 t is in the y-direction. the velocity of wire segment s has a magnitude of 78 m>s and components of 18 m>s in the x-direction, 24 m>s in the y-direction, and 72 m>s in the z-direction. the segment has length 0.50 m and is parallel to the z-axis as it moves. (a) find the motional emf induced between the ends of the segment. (b) what would the motional emf be if the wire segment was parallel to the y-axis?

Answer: A

Explanation: because it is

A Bone yanked on the kid against his will. Newton's third law states that every action has an equal and opposite reaction.

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The Cartesian coordinates of the center of the osculating circle at time t = 2 are approximately (3.885, 4, 5.077).

Given the position vector \(r(t) = (2t, t^2, 3t - 1)\), we can calculate the velocity vector by taking the derivative with respect to time:

\(v(t) = (2, 2t, 3).\)

Next, we find the acceleration vector by taking the derivative of the velocity vector:

a(t) = (0, 2, 0).

At time t = 2, we have:

\(r(2) = (4, 4, 5) \\v(2) = (2, 4, 3)\\a(2) = (0, 2, 0)\)

To determine the center of the osculating circle, we use the formula:

Center = \(r + (v * a) / |v * a|^2,\)

Calculating the cross-product:

v × a = (-6, 0, 4),

and its magnitude:

\(|v * a| = \sqrt{((-6)^2 + 0^2 + 4^2) }= \sqrt{52} = 2\sqrt{13}.\)

Finally, plugging the values into the formula, we have:

\(Center = (4, 4, 5) + (-6, 0, 4) / (2\sqrt{13})^2,\)

Center = \((4, 4, 5) + (-6, 0, 4) / 52,\)

Center =\((4, 4, 5) + (-0.115, 0, 0.077),\)

Center ≈ (3.885, 4, 5.077).

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--The complete Question is, A particle is moving in three-dimensional space, and its position vector is given by r(t) = (3t², 4t, 5t³). At time t = 2, calculate the Cartesian coordinates of the center of the osculating circle. The particle's velocity vector at t = 2 is v(t) = (6t, 4, 15t²), and the acceleration vector is a(t) = (0, 2, 30t). Determine the center of the osculating circle at t = 2 using the position, velocity, and acceleration vectors.--

The value of each individual mass is 1.15 Kg. A physical body's mass is a measurement of how much matter it contains or makes up.

Mass is used in physics to express inertia, a fundamental characteristic of all matter. A mass of matter's resistance to altering its direction or speed in response to the application of a force is what it essentially is. The change that an applied force produces is smaller the more mass a body has.

m₁ = 4.65 Kg, m₂ = 1.15 Kg, heavier mass be equal to m₁, lighter mass be equal to m₂, distance between the two objects = 20.5 cm = 0.205 m, force of attraction = 8.50 x 10⁻⁹ N, combine value of mass = 5.80

m₁ + m₂ = 5.80 Kg

using formula

F= Gm₁m₂/r²

8.5×10⁻⁹ = ( (6.67×10⁻¹¹m₁/(5.8-m₁))/(0.205)²)

5.35 = m₁ (5.8 - m₁)

m₁² - m₁(5.8) + 5.35 = 0

on solving the above equation

m₁ = 4.65 Kg

now, m₂ = 5.80 - 4.65

m₂ = 1.15 Kg

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Answer:

So 55 Newtons are needed.

Answer:

80 N

Explanation:

mass (m) = 20kg

acceleration (a) = 4m/s^2

Force (F) = ?

.°. F = ma

= 20 × 4 = 80

.°. F = 80 N

Thus, The Force is needed to accelerate a 20 kg mass at a rate of 4 m/s^2 is 80 N

-TheUnknownScientist

The intrinsic property that we can estimate with unaided eye, when looking at brightest stars, is temperature .

The intrinsic properties of stars are those which does not depend upon the distance of star from the earth e.g. temperature, mass, diameter, etc.

The temperature can be estimated by an unaided eye as the red stars are known to be cooler than the blue ones. The other intrinsic properties can't be predicted by unaided eye and require special optical instruments to make the observations. By the beginning of the 20th century, astronomers understood how to measure these intrinsic properties. Other than the temperature , the other important intrinsic property is the luminosity which can be determined by measuring the distance of star and its apparent brightness.

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Answer:

B. where tectonic plates meet

Explanation:

Most volcanoes occur near tectonic plate boundaries. For example, a large amount are found on the Ring of Firez connecting several plates.

Answer:

1.54 = sin 35/sin r

sin r = 0.57/1.54 =0.37

r = sin^-1( 0.37)

=21.7°

Answer:

Newton's Second Law tells us that the more mass an object has, the more force is needed to move it. A larger rocket will need stronger forces (eg. more fuel) to make it accelerate. The space shuttles required seven pounds of fuel for every pound of payload they carry.

Explanation:

(a) When the swimmer steps off the diving board, his initial PE is 5800 J and his initial KE is zero.

(b) At the instant he is half way to the water just before he hits the water, half of his initial PE has been converted into KE, so his PE and KE are both equal to half of his initial PE: PE = KE = 0.5 * 5800 J = 2900 J.

(c) PE and KE just before he hits the water are 0 and 5800J.

(d) Height of the diving board above the water is 4.7 meters.

(e) Velocity of the swimmer just before he hits the water is 10.5 m/s.

The conservation of energy principle states that the initial potential energy (PE) plus the initial kinetic energy (KE) is equal to the final PE plus the final KE. When the swimmer steps off the diving board, his initial PE is 5800 J and his initial KE is zero.

As he falls towards the water, some of his potential energy is converted into kinetic energy (KE = 1/2 mv^2). At the instant he is half way to the water just before he hits the water, half of his initial PE has been converted into KE, so his PE and KE are both equal to half of his initial PE:

PE = KE = 0.5 * 5800 J = 2900 J

Since the mass of the swimmer is 62 kg, the velocity v can be calculated from the equation:

PE = mgh

h = PE / (m * g) = 2900 J / (62 kg * 9.8 m/s^2) = 4.7 m

So the height of the diving board above the water is 4.7 meters.

Finally, the velocity of the swimmer just before he hits the water can be calculated from the equation:

KE = 1/2 mv^2

v = √(2KE/m) = √(2 * 2900 J / 62 kg) = 10.5 m/s

So the velocity of the swimmer just before he hits the water is 10.5 m/s.

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The complete question is:

When a swimmer stands on a high diving board, he has 5800 J of PE relative to the surface of the water. (a) What is his PE and KE the instant he steps off the board (b) when he is half way to the water (c) just before he hits the water. If the swimmer's mass is 62 kg (d) what is the height of the board above the water (e)the swimmer's velocity just before he hits the water?

Size exclusion chromatography is the method by which scientists determine the molecular size (not the weight), of a particular substance.

Size-exclusion chromatography (SEC), also known as molecular sieve chromatography, is a chromatographic method in which molecules in solution are separated by their size, and in some cases molecular weight. It is usually applied to large molecules or macromolecular complexes such as proteins and industrial polymers.

Typically, when an aqueous solution is used to transport the sample through the column, the technique is known as gel-filtration chromatography, versus the name gel permeation chromatography, which is used when an organic solvent is used as a mobile phase. The chromatography column is packed with fine, porous beads which are commonly composed of dextran, agarose, or polyacrylamide polymers. The pore sizes of these beads are used to estimate the dimensions of macromolecules.

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Answer:

λ = 610.6 nm

Explanation:

We are given;

Separation distance; d = 0.195 mm = 0.195 × 10^(-3) m

Interference pattern distance; D = 4.95 m

Width of the two adjacent bright interference; β = 1.55 cm = 1.55 × 10^(-2) m

Formula for the Fringe width is;

β = Dλ/d

Where;

λ is laser's wavelength

Thus;

λ = (d × β)/(D)

λ = (0.195 × 10^(-3) × 1.55 × 10^(-2))/4.95

λ = 610.6 × 10^(-9) m

λ = 610.6 nm

Josh pushes a table with a force of 80. N at an angle of 30° to the table. If he pushes the table 5 meters then Josh has done 346.41 Joules of work on the table.

To calculate the work done by Josh on the table, we can use the formula:

\(W = F \times d \times cos(\theta)\)

where W is the work done, F is the force applied, d is the distance moved, and theta is the angle between the force and the direction of motion.

Substituting the given values, we get:

\(W = 80 N \times 5 m \times cos(30^{\circ})\)

W = 346.41 J

Therefore, Josh has done 346.41 Joules of work on the table. To understand the concept of work, it is important to note that work is done when a force is applied to an object and it causes it to move.

In this case, Josh applies a force of 80 N at an angle of 30° to the table, causing it to move 5 meters. The work done is calculated by multiplying the force, distance, and cosine of the angle between them.

In summary, to calculate the work done by Josh on the table, we use the formula \(W = F \times d \times cos(\theta)\) , where W is the work done, F is the force applied, d is the distance moved, and theta is the angle between the force and the direction of motion.

By substituting the given values, we find that Josh has done 346.41 Joules of work on the table.

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The direction of the velocity of the other part in the instant after the explosion is:  up and to the left.

When a particle is hurled obliquely near the surface of the earth, it travels along a curved path while accelerating continuously in the direction of the planet's center. Such a particle's motion is known as projectile motion.

As one part falls straight down with no horizontal motion, the total component of horizontal momentum will be in the another part and due to law of conservation of momentum, a upward momentum will be introduced after the collision. the direction of the velocity of it will be  up and to the left.

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In 3 seconds, the bolt descends to the elevator shaft's base. The elevator is 32.7 m up when the bolt falls loose.

To determine the height of the elevator when the bolt comes loose, we need to use the equation of motion for vertical motion under constant acceleration (assuming the acceleration due to gravity is the only acceleration acting on the bolt):

= y

= vit + 1/2a x t^2

Where t is the passage of time, y is the height, vi is the initial velocity, and an is the acceleration. Since the elevator is moving upward, the initial velocity is 6 m/s. The acceleration is the acceleration due to gravity, which is 9.8 m/s^2 (downwards).

We know that the bolt reaches the bottom of the elevator shaft in 3 seconds, so we can use that time to calculate the height of the elevator.

= y

= 63 + 1/29.8 x 3^2

= 18 + 14.7

= 32.7 m

Therefore, the elevator is 32.7 m high when the bolt comes loose.

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The van der Waals equation of state can be written as (P + a/v²)(v - b) = RT, where P is the pressure, v is the molar volume, T is the temperature, R is the gas constant, and a and b are constants that account for intermolecular forces and finite molecular size, respectively.

Differentiating this equation with respect to pressure at constant temperature gives ∂v/∂P = R(v - b)/(P + a/v²)². Substituting this expression into the definition of isothermal compressibility κ = −1/v(∂v/∂P)t yields κ = (RT/(P + a/v²) - b)/(vRT). Simplifying this expression and noting that a/v² is small compared to P for a van der Waals gas, we can write κ = (1/v - b)/(RT). This expression shows that the isothermal compressibility of a van der Waals gas is influenced by both its molar volume and the constant b that accounts for molecular size.

The isothermal compressibility (κ) of a Van der Waals gas can be obtained using the given expression: κ = -1/v(∂v/∂p)t. Here, v represents the molar volume, p is the pressure, and t is the temperature. For a Van der Waals gas, the equation of state is given by (p+a/v²)(v-b)=RT, where a and b are constants, and R is the gas constant. By differentiating this equation with respect to pressure and holding temperature constant, we can obtain the required expression for isothermal compressibility. After differentiation and some simplification, we arrive at the expression: κ = (1/(RT - a/v²)).

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The person who invented the telescope and discovered the four largest satellites of Jupiter was Galileo Galilei.

Galileo Galilei (1564-1642) was an Italian physicist, mathematician, astronomer, and philosopher who is widely regarded as the father of modern physics. He made numerous contributions to the field of physics, including the development of the scientific method, the use of mathematics to describe natural phenomena, and the laws of motion.

Galileo was the first to propose the concept of inertia, which states that an object will remain at rest or in uniform motion unless acted upon by a force. He also made significant contributions to the study of dynamics, including the laws of falling bodies and the law of parabolic trajectories. Galileo is perhaps best known for his work in astronomy, where he used his invention of the telescope to make groundbreaking observations of the moon, planets, and stars.

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Answer:

Pressure, temperature and humidity all affect air density. And you can think of air density as the mass of air molecules in a given volume.

Explanation:

The total weight of screws and nails that Henry bought to build the skate board ramp is 13/20 pounds.

To find the total weight of screws and nails, we need to add the weight of the screws and the weight of the nails.

Henry bought 1/4 pound of screws and 2/5 pounds of nails, so

Total weight = 1/4 + 2/5 pounds

Total weight = (1 x 5)/(4 x 5) + (2 x 4)/(5 x 4) pounds

Total weight = (5/20) + (8/20) pounds

Now that both fractions have the same denominator, we can add them together,

Total weight = 13/20 pounds

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--The complete question is, henry bought 1/4 pound of screws and 2/5 pounds of nails to build a skate board ramp what is the total weight of the screws and nails?--

Answer:

A) 1.79ohms

Explanation:

Total resistance of resistors in parallel is given by ;

1/R = 1/R1 + 1/R2 +1/R3

Put in the values and make R the subject

Answer= 1 oz 29.6ml !!!!!!

The moment of inertia of the plate about the z axis is (1/48) * 37 kg * (L^2 + W^2).

The moment of inertia of a thin plate about the z axis can be calculated using the formula I = (1/12) * M * (a^2 + b^2), where M is the mass of the plate and a and b are the dimensions of the plate perpendicular to the z axis. Since the plate is homogeneous and thin, we can assume that its dimensions are much greater than its thickness, and we can use the formula for a rectangular plate.

Assuming the plate has dimensions of length L and width W, we can write:

a = L/2
b = W/2
M = 37 kg

Substituting these values into the formula, we get:

I = (1/12) * M * (a^2 + b^2)
 = (1/12) * 37 kg * [(L/2)^2 + (W/2)^2]
 = (1/12) * 37 kg * [(L^2 + W^2)/4]
 = (1/48) * 37 kg * (L^2 + W^2)

Therefore, the moment of inertia of the plate about the z axis is (1/48) * 37 kg * (L^2 + W^2).

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Answer:

c

Explanation:

Answer:

I am sure the awnser to this is

B. vibrate

Answer:

Bent knees

Explanation:

Depending the height your jumping from, if you were jumping from a high structure it's best if you jump and land on knees so you dont sprang your ankles from jumping and landing on your straight legs, you could even pull a muscle if you land on straight legs.

The spring scale reads more than true weight as body jump because it measures the force exerted on it, which includes both weight and the additional force generated by your upward jump.

When standing motionless on the spring scale, it measured true weight, which is the gravitational force pulling you downward. However, when body jump upward, it generate an additional upward force. This force adds to the force of your weight, causing the spring scale to read more than true weight.

The spring scale works based on Hooke's law, which states that the force exerted on a spring is directly proportional to the displacement of the spring. As you jump, the spring inside the scale compresses or stretches due to the combined force of your weight and the upward force of body jump. Since the spring scale measures the total force exerted on it, it will read a value higher than your true weight.

It's important to note that the spring scale measures the total force, not the actual weight. To calculate true weight while jumping, would need to subtract the additional force generated by your jump from the reading on the scale.

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The speed of the car just before applying the brakes is 24.39 m/s.

Given details in he question are:

Deceleration is 3.50 m/s2

Skid marks by the kid - 85 m

The formula to be used in the question is:

\(V^{2}=u^{2}+2as\\\)

\(v^{2}=0+ 2 (3.50)(85)\\\)

\(v^{2}= 595\\v=24.39 m/s\)

The speed of the car just before applying the brakes is 24.39 m/s.

The average speed can be explained as the displacement of a particle divided into a time in which the displacement occurs. Instantaneous speed is calculated to be the limit of the average speed as the time interval approaches zero. Speed ​​denotes distance traveled divided by time on the contrary instantaneous speed measures how quickly and in which direction does it move.

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Answer:410.022779

Explanation: To figure out force, you use the equation F=MA. Well, in this case, you're trying to find M. The mass. All you have to do is rearrange. F=MA turns into A=F/M.

 The changing the compound inequality x>-3 and x <3 from "and" to "or" change the solution set Yes, if you change the type of compound inequality, the solution set will change. The solution set of the “and” compound inequality contains values for x that satisfy both inequalities, which are values between –3 and 3. The solution set of the “or” compound inequality contains values for x that satisfy either or both inequalities, which includes all real numbers.

An compound  inequality is a statement that has two inequality statements joined by either the word "or" or the word "and." "And" indicates that both statements of the compound sentence are true at the same time. This is the overlap or intersection of the solution sets of the individual sentences.  

There are two types of additive inequality.

These compound inequalities sometimes appear as two simple inequalities separated by the word AND or OR. When solving compound "and/or" inequalities, begin by solving each inequality separately.

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Answer:)

Sample Response: Yes, if you change the type of compound inequality, the solution set will change. The solution set of the “and” compound inequality contains values for x that satisfy both inequalities, which are values between –3 and 3. The solution set of the “or” compound inequality contains values for x that satisfy either or both

Explanation:) hope this helps have a great day !:).

Brainliest would be very very appreciated.