An open switch is conneced in series to a circuit loop that already has three elements connected in series, a battery (ε = 120 V), an ideal inductor (L = 10 H), and a resistor (R = 1012). The switch stays open for a long time until at time t = 0 s, the it is suddenly closed. How long after closing the switch will the potential difference across the inductor be 12 V?

Answer:

The pressure of the air molecules inside the pen cap increases and the volume occupied by the air decreases such that the combined volume occupied by the pen cap and the air volume reduces while the combined mass of the pen cap and the air molecules remain the same

Given that density = The mass/Volume, we have that the density varies inversely as the volume, and as the volume reduces, the density increases

Upon squeezing, therefore, as the new combined density of the pen cap and the air molecules rises to more than the density of the water in the bottle, then, the pen cap air molecule is relatively more denser than the water, which will result in the pen cap sinking to the bottom of the bottle

Explanation:

Answer:

E......1,800 meters

Explanation:

distance = speed × time

convert 1 min to seconds because speed is give in meters per seconds so it's which is 60 seconds

Then...60 ×30 = 1,800

When you change the thickness of the wire in a circuit, option B. the resistance (R) and current (I) will also change, but the voltage (V) will remain constant.

The resistance of a wire is directly proportional to its length and inversely proportional to its cross-sectional area (thickness). As the thickness of the wire changes, the cross-sectional area changes, which in turn affects the resistance. Thicker wires have a larger cross-sectional area, resulting in lower resistance, while thinner wires have a smaller cross-sectional area, resulting in higher resistance. Therefore, changing the thickness of the wire will cause a change in resistance.

According to Ohm's Law (V = IR), the voltage (V) in a circuit is equal to the product of the current (I) and the resistance (R). If the voltage is kept constant, and the resistance changes due to the thickness of the wire, the current will also change to maintain the relationship defined by Ohm's Law. When the resistance increases, the current decreases, and vice versa.

However, it's important to note that changing the thickness of the wire will not directly affect the voltage. The voltage in a circuit is determined by the power source or the potential difference applied across the circuit and is independent of the wire thickness. As long as the voltage source remains constant, the voltage across the circuit will remain constant regardless of the wire thickness. Therefore, the correct answer is option B.

know more about current here:

https://brainly.com/question/1100341

#SPJ8

Answer:

1. It is good to be vulnerable and open to your friends and family.

2.Spending quality is another way of maintaining social harmony.

3.Connect with neighbours.

4.Also participating in social events, like football, church events, social gatherings, small groups.

5.Hang out with friends once in awhile.

I= V/R

R= V/I these are the other two quantities

Answer:

A gravitational force exerted by an object on another is a force.

Explanation:

hope it helps

Answer:

Ptolemy proposed a model, he reference system is centered on the Earth

Copernicus, proposed a deferent system,  this system is centered on the Sun, where it is at the origin of the system

Explanation:

Thousands of years ago, Ptolemy proposed a model to explain the movement of the planets and stars in the sky, in this model the reference system is centered on the Earth, so each body is orbiting in different spheres around the Earth as its center, this system had very complicated calculations and curves to be able to explain the orbits of the planets.

More recently Copernicus, proposed a deferent system, this system is centered on the Sun, where it is at the origin of the system, in this system the movement of the planets are ellipses, which is a much simpler explanation and has been widely accepted, in current systems the reference system is fixed in the bodies more massive, since this simplifies the explanation of the movements.

Answer:

C: Smoke rises out of very hot substances

Explanation:

Edge

Answer:

It's D.

Explanation:

The period of a simple pendulum of length 1m on a massive planet is 1 sec. The acceleration due to gravity on that planet is 39.48 m/s^2.

A simple pendulum's period is given by:

T = 2π √(L/g)

Where T is the pendulum's period, L is its length, and g is the acceleration due to gravity.

In this scenario, the pendulum's period is one second and its length is one metre.

So, from above equation, we have:

1 = 2π √(1/g)

Squaring both sides, we get:

1^2 = (2π)^2 (1/g)

Simplifying, we get:

g = (4π^2)/1 = 39.48 m/s^2

Therefore, the acceleration due to gravity on the massive planet is 39.48 m/s^2.

For more such questions on simple pendulum, click on:

https://brainly.com/question/26449711

#SPJ11

Answer:

the answer is the last option

Answer:

the answer is in the last

(i) The location of the electron after traveling a distance L in the x direction is x = v0L, y = B0L²/2v0, and z = 0.

(ii) The minimum kinetic energy of the fast electron required to create an electron-positron pair is 6mec².

(i) The expression for the location (x, y, z) of the electron after traveling a distance L in the x direction is x = v0L, y = B0L²/2v0, and z = 0. This accounts for the deviation caused by the weak magnetic field.

When a magnetic field is applied perpendicular to the initial velocity of the electron, it experiences a Lorentz force that causes it to deviate from its original path. In this case, the magnetic field is in the y-direction, so the electron will experience a force in the y-direction. By integrating the equation of motion, the expressions for x, y, and z can be derived.

(ii) The minimum amount of kinetic energy of the fast electron required to create an electron-positron pair is 6mec², where me is the mass of the electron.

In order for an energetic collision between a fast electron and an electron at rest to create an electron-positron pair, the total energy must be conserved. The rest mass energy of an electron-positron pair is 2mec². Since the fast electron has initial kinetic energy, a minimum kinetic energy of 6mec² is required to ensure that the total energy is sufficient to produce the electron-positron pair. This minimum energy accounts for the creation of two particles with rest mass energy.

To learn more about magnetic field, here

https://brainly.com/question/14848188

#SPJ4

(i) The location of the electron after traveling a distance L in the x direction is given by the expression:

r = (L, 0, 0) + (0, v0, 0)t + (1/2)(q/m)(v0B0t^2)y

(ii) The minimum amount of kinetic energy required for the creation of an electron-positron pair in an energetic collision between a fast electron and an electron at rest is 6mec^2.

(i) The location of the electron after traveling a distance L in the x direction can be determined using the expression:

r = (L, 0, 0) + (0, v0, 0)t + (1/2)(q/m)(v0B0t^2)y. This equation takes into account the initial position, the velocity, the time of travel, and the magnetic field applied. The force acting on the electron due to the magnetic field is given by the Lorentz force equation, which can be used to calculate the acceleration and subsequent position of the electron.

(ii) To create an electron-positron pair in an energetic collision, the minimum amount of kinetic energy required for the fast electron is 6mec^2. This is obtained by calculating the difference between the total energy of the electron-positron pair and their rest mass energy. The Lorentz factor, γ, is used to express the total energy, and it is dependent on the velocity of the fast electron. By deriving and simplifying the inequality E - E0 ≥ mec^2(γ - 2) ≥ 0, the minimum kinetic energy requirement is determined to be 6mec^2.

Learn more about electron motion and collision:

https://brainly.com/question/29162468

#SPJ11

Answer:

The name carbohydrate means "watered carbon" or carbon with attached water molecules. Many carbohydrates have empirical formuli which would imply about equal numbers of carbon and water molecules. For example, the glucose formula C6H12O6 suggests six carbon atoms and six water molecules.

Answer:

232 N

Explanation:

By Hooke's law, the force applied to a spring is proportional to the stretch of the spring, so

F = kx

Where F is the force, k is the spring constant and x is how much it is stretched.

So, replacing k by 58N/cm and x by 4 cm, we get

F = (58 N/cm)(4 cm)

F = 232 N

Therefore, the force applied is 232 N

Answer:intensity of an electric field (E)

charge (q)

Force (F)

E=F/q

E=20N/.5C

E=40N/C

Explanation:

The Electric field intensity will be  40 N/C

The electric field intensity at a point is the force experienced by a unit positive charge placed at that point.

Electric field intensity(E) = force (F)/ charge(q)

given

charge = 0.50 C

Force = 20 N

Electric field intensity = ?

E = 20 N / 0.50 C

E = 40 N/C

The Electric field intensity will be  40 N/C

learn more about Electric field intensity :

https://brainly.com/question/26446532?referrer=searchResults

#SPJ3

Answer:

\(0.361\ \text{m}\)

Explanation:

\(f_s\) = Frequency of source = 375 Hz

\(\Delta f\) = Difference between the maximum and minimum sound frequencies = 2.75 Hz

v = Speed of sound in air = 343 m/s

T = Time period = 1.8 s

\(v_m\) = Maximum speed of the microphone

We have the relation

\(\Delta f=2f_s\dfrac{v_m}{v}\\\Rightarrow v_m=\dfrac{\Delta fv}{2f_s}\\\Rightarrow v_m=\dfrac{2.75\times 343}{2\times 375}\\\Rightarrow v_m=1.26\ \text{m/s}\)

Amplitude is given by

\(A=\dfrac{v_mT}{2\pi}\\\Rightarrow A=\dfrac{1.26\times 1.8}{2\pi}\\\Rightarrow A=0.361\ \text{m}\)

The amplitude of the simple harmonic motion is \(0.361\ \text{m}\).

Answer:

Explanation:

A Solid is one of the three main states of matter. By definition a solid is something whose molecules are so densely packed together that it allows it to keep its shape. Therefore if the item has a definite shape that does not change on it's own it is a solid. As opposed to a liquid which will take and fill the shape of it's container.

Answer:

I would say vitamin B-6

Explanation:

it is also known as pyridoxine. it helps ebzymes break down protein and carry the dismantled amino acids to the blood stream

Hope this helps ✌✌

Answer:

The body needs small amount of vitamin B-6 to help enzymes break down protein and carry the dismantled amino acids to the blood stream.

Answer:

This energy, called the heat of fusion or heat of melting, is absorbed by the particles as potential energy as the solid changes to a liquid

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Explanation:

Changing states of matter occur when matter loses or absorbs energy. When a substance absorbs energy, the atoms and molecules move faster and that increases kinetic energy, which causes particles to push even farther, to a point that they change its form. This energy is usually considered heat or thermal energy.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Hope I helped!!!

GL :)

Answer:

counter clockwise

Explanation:

The observer in the Northern Hemisphere will notice that the stars near the NCP to move counter-clockwise

Counter - clockwise : The observer will observe this because the earth movement when viewed from the North pole is in a counterclockwise direction, hence the stars will appear to move in an ant-clockwise direction

Answer:

heat occurs to change into solid

Answer:

It's freezing or solidification

Explanation:

The coldness freezes the water making it a solid, like water to an ice cube. Take Disney's Frozen by example. Elsa has a ice touch, so when she touches water, it becomes a solid.

Answer:

It took around 4 hours and 47 minutes to reach the vacation spot, including the stop for gas and snacks.

Explanation:

To solve this problem, we can use the formula:

time = distance / speed

In this case, the distance is 215 miles and the speed is 45 miles per hour. So,

time = 215 miles / 45 miles per hour = 4.78 hours or approximately 4 hours and 47 minutes.

Answer:

\(\huge\boxed{\sf t = 4.78\ hours}\)

Explanation:

Distance = S = 215 miles

Average speed = v = 45 mph

Time = t = ?

v = s/t

Put the given data in the above formula.

45 = 215/t

t = 215/45

\(\rule[225]{225}{2}\)

Answer:

1 : 2 (30 : 60)

Explanation:

The rate of increase of the Earth's gravity field at latitudes 30° and 60° are in the ratio 1 : 2 because 30 : 60 simplified is 1 : 2.

If the answer does not ask for the ratio to be simplified leave its as 30 : 60.

We can know that galaxy clusters contain a lot of mass in the form of hot gas that fills spaces between individual galaxies with the use of X-ray Telescopes.

An X-ray telescope may focus the light from an X-ray star onto an electronic eye in the same way that an optical telescope improves our capacity to view dim stars. An imaging detector can see several X-ray-generating objects at the same time or make images of diffuse X-ray emission zones.

It has been used to detect intermediate-mass black holes and examine ultraluminous X-ray sources. NuSTAR, the most current X-ray mission launched, is focused to monitoring hard X-rays (higher-energy X-rays than can be observed by other orbiting X-ray telescopes).

X-ray astronomers' stunning findings, such as neutron stars and black holes in binary systems and hot gas filling the space among clusters of galaxies, have transformed our understanding of the Universe.

Learn more about  X-ray Telescopes:
https://brainly.com/question/14683213
#SPJ1

Answer:

Yes, gravitational force is everywhere. Even if you don't move or move, or wherever you are, there is gravitational force.

Answer:

The answer is two meter per second square

Answer:

It is cold at saturn and far away

Explanation:

If one force is proportional to velocity (v) and the other force is proportional to the square of velocity (\(v^2\)), let's analyze their behaviors at high speeds.

The force proportional to v is a linear function of velocity. As velocity increases, the force will also increase linearly.

On the other hand, the force proportional to \(v^2\) is a quadratic function of velocity. As velocity increases, the force will increase at a much faster rate because it is squared.

At high speeds, the force proportional to \(v^2\) will dominate over the force proportional to v. This is because the squared term leads to a more significant increase in force compared to the linear term as velocity increases.

In summary, at high speeds, the force proportional to v^2 dominates, exerting a stronger influence on the object compared to the force proportional to v.

To know more about force is proportional to velocity refer here

https://brainly.com/question/30590457#

#SPJ11