If the coil has a cross-sectional area of 20. 0 cm2 and has 1000 turns, what is the amplitude in v of the emf in the coil?.

Answer; lol im taking that physics exam as well, a m f confused i cant find the answers on the internet

Explanation: #ripaldinepride

Answer:

During photosynthesis the following energy are transformed:

1:Light energy

2:gas

3:water

Answer:

(a) k = 80 N/m   (b) x = 75 cm

Explanation:

The question says that, "A spring is elongated 30 centimeters when we exert a force of 24 N on it a) calculate the value of the spring constant b) calculate the elongation of the spring when applying a force of 60 N"

Given that,

Force exerted on the spring, F = 24 N

Elongation in the spring, k = 30 cm =0.3 m

(a) We know that, the force on the spring is given by :

F = kx

Where

k is spring constant

So,

\(k=\dfrac{F}{x}\\\\k=\dfrac{24}{0.3}\\\\k=80\ N/m\)

(b) When F = 60 N,

\(x=\dfrac{F}{k}\\\\x=\dfrac{60}{80}\\\\x=0.75\ m\\\\x=75\ cm\)

Hence, this is the required solution.

The magnetic field at the center of each turn of the toroid is 1.86 * 10^-7 T/turn, given that the current is 29 mA and the solenoid has 21 turns per centimeter of its length. This is assuming that the radius of the toroid is small compared to the length of the solenoid.

To calculate the magnetic field at the center of each turn of the toroid, we need to use the formula for the magnetic field inside a solenoid, which is given by B = u0 * n * I, where B is the magnetic field, u0 is the permeability of free space, n is the number of turns per unit length, and I is the current flowing through the solenoid.
In this case, we have a solenoid with 21 turns per centimeter of its length, which means that n = 21 turns/cm. However, the solenoid is twisted into a circle to form a toroid, so the length of the toroid is the same as the circumference of the circle, which is 2 * pi * r, where r is the radius of the circle.
Assuming that the radius of the toroid is small compared to the length of the solenoid, we can approximate the length of the toroid as L = 2 * pi * r * (21 turns/cm). Therefore, the number of turns in the toroid is N = 21 * L = 42 * pi * r turns.
The current flowing through the solenoid is given as 29 mA. Substituting these values into the formula for the magnetic field inside a solenoid, we get:
B = u0 * n * I = 4 * pi * 10^-7 * 21 turns/cm * (29 * 10^-3 A) = 2.46 * 10^-5 T
Since the magnetic field inside a toroid is constant and equal to the magnetic field at the center of each turn of the toroid, the magnetic field at the center of each turn of the toroid is:
B' = B / N = (2.46 * 10^-5 T) / (42 * pi * r turns) = 1.86 * 10^-7 T/turn

To know more about magnetic field visit :

https://brainly.com/question/32099073

#SPJ11

Answer:

C. There is a difference in air pressure.

Explanation:

Answer:

what's your problem. How may I help you Buddy

Answer:

I Believe the Correct Answer is respiratory system; obtains oxygen so the energy in nutrients can be extracted.

Explanation:

Respiratory System is made for oxygen and involves the Lungs Diaphragm etc.

Please give me Brainliest!

The ratio of the newly allowed intensity to the previously allowed intensity is 3.1623 x 10⁻³.

Banks says a leaf blower makes 64 to 78 decibels at 50 feet. To the operator's ear, the noise is 95-115 decibels. According to Dangerous Decibels, a public-private partnership aimed at reducing hearing loss, typical speech is around 60 decibels, washing machines 75 decibels, and chainsaws 115 decibels.

Performance that fits your needs. Setting the motor to a low speed makes less noise. According to the American Green Zone Alliance, an organization dedicated to zero-emission landscaping, the average fan produces about 65 dB of noise. Compare this to the average noise level of a traditional gas backpack blower.

Learn more about The ratio here:- https://brainly.com/question/2328454

#SPJ4

The final speed of object A will be twice the final speed of object B since both objects have the same acceleration, but object A accelerates for a longer duration.

Since objects A and B start at rest and accelerate at the same rate, the end speed is simply proportional to acceleration duration.

Let B accelerate for "t" units. Object A accelerates for "2t" units.

The final speed of an item can be calculated using the equations of motion: v = u + at, where "v" is the final velocity, "u" is the initial velocity (zero in this case), "a" is the acceleration, and "t" is the acceleration time.

A and B have identical accelerations. Thus, object A's final velocity, vA, is 2at = (0) + a(2t).

Object B's final velocity, vB, is (0) + a(t) = at.

The final speed of item A (2at) is twice that of object B (at). Thus, A's final speed is twice B's.

Learn more about acceleration, here:

https://brainly.com/question/2303856

#SPJ4

The magnitude of the total acceleration is 16.045m/s2

A platform is rotating with an angular speed of 3.00 rad/s and an angular acceleration of 11.0 rad/s2. at a point on the platform that is 1.25 m from the axis of rotation,

Initial angular speed is given as 0 = 2 rad/s, angular acceleration is given as = 3 rad/s 1.25, and time is given as 11.0 s.

From the angular displacement equation, we may deduce that = 0 t+ 1/ 2 t 2 =1.25 * 11.00+ 1/ 2 *3*(1.25) ^2.

Radians: =16.045

The magnitude of the total acceleration is 16.045m/s2

To learn more about total acceleration refer to:

https://brainly.com/question/14508449

#SPJ4

Answer:

200,000 and 20,000,000

Explanation:

Substituting the values into the equation of momentum, we get that the momentum is p = mv = 20,000*10 = 200,000. Using the equation provided to solve for the force the truck experienced, we find: 20,000*10/0.01 = 20,000,000.

I hope this helps!

Answer:

D  

Explanation:

The work done to the cart by the pulling force is 16950 J.

Work is the transfer of energy that happens when a force makes an object move. To calculate the work done to an object, we multiply the force applied by the distance moved in the direction of the force

Given a force of 120 N applied at an angle of 50° with respect to the horizontal surface.

We can resolve the force into its horizontal and vertical components as follows:

Horizontal force, Fx = F cos θ = 120 cos 50° = 91.76 N

Vertical force, Fy = F sin θ = 120 sin 50° = 91.67 N

Ignoring friction, the net force acting on the cart is the horizontal force, Fx.

The acceleration produced by the force is given by:

F = ma => a = F / m => a = 91.76 / 150 = 0.611 m/s²

The displacement of the cart in the direction of the force is the same as the distance covered, which is given as 15 meters.

Therefore, the work done to the cart by the pulling force is given by: W = Fd cos θW = 91.76 × 15 × cos 50°W = 16950 J.

To know more about Work please visit :

https://brainly.com/question/2472293

#SPJ11

Answer:

8.0 I mean for 10,  10 is wrong

Explanation:

Multiplying the force on the object by the time over which the force acts, multiplying the mass of the object by the velocity change of the object

Answer:

\(10\; {\rm kg \cdot m\cdot s^{-1}}\).

(Assume that there are no other unbalanced force on this object.)

Explanation:

When an object of mass \(m\) travels at a velocity of \(v\), the momentum \(p\) of that object would be \(p = m\, v\).

In this question, the \(m = 6.0\; {\rm kg}\) object was initially at a velocity of \(v = 3.0\; {\rm m\cdot s^{-1}}\). The initial momentum of this object would be:

\(\begin{aligned} p &= m\, v \\ &= (6.0\; {\rm kg})\, (3.0\; {\rm m\cdot s^{-1}}) = 18\; {\rm kg\cdot m\cdot s^{-1}}\end{aligned}\)

The question states that the external force is "resistive". In other words, this force opposes the motion of this object. Hence, while the magnitude of this force is \(40\; {\rm N}\), the vector value of this force would be \((-40)\; {\rm N}\).

To find the impulse \(P\) that a force \(F\) has exerted, multiply the force vector by the duration \(\Delta t\) over which this force was applied.

For example, the \((-40)\; {\rm N}\) force in this question was applied over a period of \(\Delta t = 0.20\; {\rm s}\). This force would have exerted an impulse \(J\) of:

\(\begin{aligned}J &= F\, \Delta t \\ &= (-40\; {\rm N})\, (0.20\; {\rm s}) = (-8.0)\; {\rm N\cdot s}\end{aligned}\).

Note that \(1\; {\rm N}\) is equivalent to \(1\; {\rm kg\cdot m\cdot s^{-2}}\). Therefore, the unit of impulse \({\rm N\cdot s}\) would be equivalent to \({\rm (kg\cdot m\cdot s^{-2})\cdot s}\), which simplifies to \({\rm (kg\cdot m\cdot s^{-1})}\).

Thus, the impulse on this object \((-8.0)\; {\rm N\cdot s}\) would be equivalent to \((-8.0)\; {\rm kg\cdot m\cdot s^{-1}}\).

The total impulse on an object is also equal to the change in the momentum of the object. Assuming that there are no other unbalanced force on this object, the total impulse on this object would be \((-8.0)\; {\rm kg\cdot m\cdot s^{-1}}\). The momentum of this object would become:

\(\begin{aligned}& 18.0\; {\rm kg \cdot m\cdot s^{-1} + (-8.0)\; {\rm kg\cdot m\cdot s^{-1}} \\ =\; & 10\; {\rm kg\cdot m\cdot s^{-1}} \end{aligned}\).

Answer:

a magnet is a material with a North and South pole

Answer:

The mass number of this carbon atom is 12.

Explanation:

Mass number = Number of protons + Number of neutrons  =  6 + 6  = 12

Brainlist pls!

Answer:

6

Explanation:

Answer:

It will go on forever and won’t stop moving

Explanation:

I think it will travel forever and will be slow in the process it won’t stop is what I think

The ball is hurled upward into space, it climbs steadily until it collides with an obstruction in its path.

All mass-bearing objects are attracted by gravitational force. Because it consistently attempts to bring masses together rather than push them apart, the gravitational force is referred to as attractive.

As we know, the gravitational force is given by:

\(\rm F = \dfrac{Gm_1m_2}{r^2}\)

Where G is the gravitational constant.

m1 and m2 are masses.

r is the distance between the masses.

As we know,

There is no gravity in space, the ball is not subject to the effects of gravity. When a ball is hurled upward into space.

It climbs steadily until it collides with an obstruction in its path.

Thus, the ball is hurled upward into space, it climbs steadily until it collides with an obstruction in its path.

Learn more about the gravitational force here:

brainly.com/question/12528243

#SPJ2

The direction of this current's magnetic force on an electron that is moving perpendicular to the page and outward from it on the left side of the wire is downward.

What is Magnetic force?

The force exerted by a magnetic field on a moving charged particle is known as a magnetic force. It is described by the formula F = q(v x B), where F is the magnetic force, q is the particle's charge, v is the particle's velocity, and B is the magnetic field.

The right-hand rule states that when a wire-carrying current is held in the right hand with the thumb pointing in the direction of the current, the fingers will curl in the direction of the magnetic field lines created by the current.

The magnetic field lines will create clockwise circles around the wire because, in this instance, the current flows from the top of the page downward.

Now imagine an electron on the left side of the wire traveling perpendicular to the page. The electron will experience a magnetic force since it travels in a direction perpendicular to both the magnetic field and the current.

We can use the left-hand rule for a negative charge to determine the direction of this force. If the left hand is held with the fingers pointing toward the magnetic field and the thumb pointing toward the electron's velocity, the palm will face the order of the force on the electron.

The thumb points to the left because the electron leaves to the left. The fingers curl because the magnetic field lines go clockwise around the wire. Therefore, the magnetic force acting on the electron is directed downward because the palm is facing downward.

Therefore, the magnetic pull exerted by this current on an electron traveling outward and perpendicular to the page on the wire's left side is directed downward.

Learn more about Magnetic force from the given link.

https://brainly.com/question/29213676

#SPJ1

The radius of curvature of the mirror is 40 cm.

In this case, the mirror produces an inverted image, which means it is a concave mirror. We are given the object distance (u), image distance (v), and magnification (M). The magnification is -2, as the image is twice as tall and inverted. The mirror formula for concave mirrors is:
1/f = 1/u + 1/v
We can find the focal length (f) using the magnification formula:
M = -v/u
By solving for v, we get:
v = -2u
Now, we can substitute this value back into the mirror formula:
1/f = 1/u - 1/(2u)
Since the image is 60 cm from the mirror:
1/f = 1/60 - 1/(2 * 60)
1/f = 1/60 - 1/120
1/f = 2/120 - 1/120
1/f = 1/120
Thus, the focal length (f) is 60 cm / 2 = 30 cm
The radius of curvature (R) is twice the focal length:
R = 2 * f = 2 * 30 = 40 cm

Summary: The radius of curvature of the mirror is 40 cm.

Lean more about radius of curvature click here:

https://brainly.com/question/29595940

#SPJ11

The resultant of the two given vectors is 346.4 units.

The resultant of the three vectors is the sum of all the three vectors acting together. The resultant vector is the single vector that will represent all the three vectors in terms of magnitude and direction.

The sum of the vectors in x-direction;

Vx = V cosθ

where;

for 200 units, θ = 0⁰ (above the horizontal)

for 400 units, θ = 60⁰ (above the horizontal)

Vx = 200 cos(0) - 400 cos(60)

Vx = 0

The sum of the vectors in y-direction;

Vy = 200 sin(0) + 400 sin(60)

Vy = 346.4 units

The resultant vector is calculated as;

V = √(Vx² + Vy²)

V = √(0² + 346.4²)

V = 346.4 units

Learn more about resultant vector here: https://brainly.com/question/28047791

#SPJ1

Friction force is what pulls an item to the left while it is travelling to a right on the a rough surface (f). The net force exerted on the rope was equal to a distinction two loads exerted on it operating in opposite directions.

An item is pulled towards the centre of the Earth by gravity. A ball that has been tossed above slows down and returns to the earth. This is as a result of gravity bringing the soccer ball back to the ground. The pull of gravity affects everything on Earth.

When a force propels an object inside the direction of a person pulling it, such action is referred to as pulling. Opening a door, plucking a guitar string, drawing water from a well, or drawing a curtain are all examples of pull-related actions.

To know more about surface visit:

https://brainly.com/question/28267043

#SPJ1

The magnitude of this magnetic field would need to be 15.17 tesla in order to exert a force of magnitude 6.16 newtons on a 0.864 meter length of this wire.

The magnitude of this magnetic field can be found by using the equation F = ILBsinθ, where F is the force, I is the current, L is the length of the wire, B is the magnitude of the magnetic field, and θ is the angle between the wire and the magnetic field. Rearranging the equation to solve for B gives us:

B = F / (ILsinθ)

Plugging in the given values gives us:

B = 6.16 N / (0.504 A × 0.864 m × sin(71.7°))

B = 6.16 N / (0.504 A × 0.864 m × 0.944)

B = 15.17 T

Therefore, the magnitude of this magnetic field would need to be 15.17 tesla in order to exert a force of magnitude 6.16 newtons on a 0.864 meter length of this wire.

To know more about magnetic field, refer here:

https://brainly.com/question/23096032#

#SPJ11

When a grasshopper egg hatches, a baby grasshopper called a pupa comes out of the egg and begins to grow. The nymph grasshopper already looks like a grasshopper, it still needs to molt its exoskeleton many times before becoming a full-grown adult therefore the statement which corrects the error in the passage is that a baby grasshopper is a nymph and is therefore denoted as option B.

This is referred to as an external skeleton that supports and protects an animal's body while an internal skeleton such as in humans is referred to as endoskeleton.

During metamorphosis, egg hatches into larva and then to nymph which is referred to as the baby of the insect involved thereby making it the correct choice.

Read more about Metamorphosis here https://brainly.com/question/24173319

#SPJ1

The full question:

"When a grasshopper egg hatches, a baby grasshopper called a pupa comes out of the egg and begins to grow. Although the nymph grasshopper already looks like a grasshopper, it still needs to molt its exoskeleton many times before becoming a full-grown adult."

Which statement corrects the error in the passage?

Question 3 options:

A baby grasshopper is a larva.

A baby grasshopper is a nymph.

The grasshopper nymph hatches.

The nymph has no exoskeleton

Calculating ΔG°rxn at 25°C using the provided table, we obtain:

A.) -510.0 kJ/mol B.) -138.92 kJ/mol C.) -1915.46 kJ/mol  

To calculate the \(\Delta G^\circ_\text{rxn}\) for the given reactions at 25°C, you can use the following formula:

\(\Delta G_{\text{rxn}}^{\circ} = \sum \Delta G_{\text{f}}^{\circ}(\text{products}) - \sum \Delta G_{\text{f}}^{\circ}(\text{reactants})\)

Let's calculate the \(\Delta G^\circ_\text{rxn}\) for each reaction:

A.) 2Mg(s) + O₂(g) --> 2MgO(s)

\(\Delta G_{\text{rxn}}^{\circ} = (2 \cdot \Delta G_{\text{f}}^{\circ}(\text{MgO})) - (2 \cdot \Delta G_{\text{f}}^{\circ}(\text{Mg}) + \Delta G_{\text{f}}^{\circ}(\text{O}_2))\)

\(= (2 \times (-255.0 \, \text{kJ/mol})) - (2 \times 0 \, \text{kJ/mol} + 0 \, \text{kJ/mol})\)

= -510.0 kJ/mol

B.) 2SO₂(g) + O₂(g) --> 2SO₃(g)

\(\Delta G^\circ_\text{rxn} = (2 \times \Delta G^\circ_\text{f}(SO_3)) - (2 \times \Delta G^\circ_\text{f}(SO_2) + \Delta G^\circ_\text{f}(O_2))\)

\(= (2 \times (-370.53 \, \text{kJ/mol})) - (2 \times (-300.57 \, \text{kJ/mol}) + 0 \, \text{kJ/mol})\)

= -740.06 kJ/mol + 601.14 kJ/mol

= -138.92 kJ/mol

C.) 2C₂H₂(g) + 5O₂(g) --> 4CO₂(g) + 2H₂O(l)

\(\Delta G^\circ_\text{rxn} = (4 \times \Delta G^\circ_\text{f}(CO_2) + 2 \times \Delta G^\circ_\text{f}(H_2O)) - (2 \times \Delta G^\circ_\text{f}(C_2H_2) + 5 \times \Delta G^\circ_\text{f}(O_2))\)

\(= (4 \times (-394.65 \, \text{kJ/mol}) + 2 \times (-237.35 \, \text{kJ/mol})) - (2 \times 168.43 \, \text{kJ/mol} + 5 \times 0 \, \text{kJ/mol})\)

= -1578.6 kJ/mol - 336.86 kJ/mol

= -1915.46 kJ/mol

Therefore, the \(\Delta G^\circ_\text{rxn}\) values for the given reactions at 25°C are:

A.) -510.0 kJ/mol

B.) -138.92 kJ/mol

C.) -1915.46 kJ/mol

To know more about the ΔG°rxn refer here :

https://brainly.com/question/31745388#

#SPJ11

Answer:

formula

Explanation:

Answer:

0.05773 sec

Explanation:

We know that

time = distance/speed = d/V

for air

t1 = 117/355 = 0.3295 sec

for fresh water

t_2 = 117/1480 = 0.07905 sec

for metal

t_3 = 117/5490 = 0.02131 sec

So as we can see sound will reach through metal hand rail 1st, then through fresh water and then through air

1st = metal hand rail

2nd = fresh water

3rd = air

time difference between 1st and 2nd sound = t_2 - t_3 = 0.07905 - 0.02131 = 0.05773 sec

According to the Newton's second law,

where F is the force on the object, m is the mass of the obect and a is the acceleration of the object.

Substituting the known values,

Thus, the mass of the object is,

Hence, the mass of the object is 6 kg.