A loose spiral spring carrying no current is hung from a ceiling. When a switch is thrown so that a current exists in the spring, do the coils move closer together move farther apart not move at all

Answer:

120

Explanation:

KE = (mv^2)/2

= ((0.15)(40)^2)/2

= ((0.15)(1600))/2

= 240/2

The term that is formed from two pieces of different metals stuck together lengthwise is bimetallic coil.

What is a bimetallic coil-A bimetallic coil is an essential component of many temperature control devices. Bimetallic coils are also known as bimetallic strips, and they are made up of two different types of metal bonded together and wound into a coil shape.Bimetallic coils are used to create a temperature-sensitive sensor that can open and close a circuit as temperatures rise or fall. This capability allows bimetallic coils to be used in a variety of devices, including thermostats, heat pumps, and furnace limit switches.The structure of bimetallic coils : A bimetallic strip is made up of two separate metals that are bonded together. These metals have different coefficients of thermal expansion, which means that they expand and contract at different rates as the temperature changes.When the bimetallic coil is exposed to heat, the metal with the lower coefficient of thermal expansion will expand more than the metal with the higher coefficient of thermal expansion.

This causes the bimetallic strip to bend, which can be used to open or close a circuit.In summary, bimetallic coils are temperature-sensitive sensors used to regulate the temperature of devices. The bimetallic coil is formed by bonding two different metals together and winding them into a coil shape.

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We can determine whether a change is physical or chemical by analyzing the what type of change is occurred. The change in color or formation of new product is a chemical change.

A chemical change is a type of change which include the breaking or making of chemical bonds and the formation of new products which has properties different from the initial substances.

Phase changes, change in size, shape, dissolving, conductivity etc. are  physical changes. They do not involve any change in chemical bonds or the formation of new product.

The change in color indicates the formation of a new product. All the chemical reactions like the corrosion of metals reaction of metals with acids or water etc . are all chemical changes.

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Answer:

80.08 km/h

Explanation:

Given that Black Panther ran 567.6 km to the east in 23 hours

Velocity = distance covered/time

Substitute the distance covered and time into the formula

Velocity = 567.6/23

Velocity = 24.68 km/h

then turned around and ran 221.8 km to the west in 1.2 hours.

Velocity = 221.8/1.2

Velocity = 184.83 km/h

What was his average velocity during the trip in km/h ?

Average velocity = (V + U)/2

Since the two velocity are opposite to each other, the average velocity will be:

Average velocity = (-24.68 + 184.83)/2

Average velocity = 160.15/2

Average velocity = 80.08 km/h

Therefore, his average velocity during the trip is 80.08 km/h

Answer:

stars #3

Explanation:

they didn't know it was stars

Answer:

Because each color is refracted differently, each bends at a different angle, resulting in a fanning out and separation of white light into the colors of the spectrum.

Answer:

Im not sure who you are talking about, but if you are talking about Dominic Raab, well, he failed to make a crucial phone call to seek urgent help airlifting translators out of Afghanistan.          if you are not talking about this Dominic, then please add more information to your question.

Answer:

Explanation:

When two magnets are brought together, the opposite poles will attract one another, but the like poles will repel one another. This is similar to electric charges. Like charges repel, and unlike charges attract. Since a free hanging magnet will always face north, magnets have long been used for finding direction.

Both skydivers will experience the same acceleration due to gravity. This is because the gravitational force acting on the skydivers is proportional to their mass

When skydiving, the fall experience is heavily influenced by gravity, air resistance, and mass. The differences in mass result in a change in terminal velocity and same acceleration due to gravity. The more massive skydiver will have a higher terminal velocity than the less massive one. A higher terminal velocity means that the more massive skydiver will fall faster than the less massive skydiver. However, they will both experience the same acceleration due to gravity of 9.81 m/s2. The reason for this is that the force of gravity acting on the skydivers is proportional to their mass. The more massive the skydiver, the more force they will experience. Therefore, both skydivers will experience the same acceleration due to gravity. The mass of an object determines its gravitational force. An object with more mass will have a greater gravitational force than an object with less mass. Air resistance is the force that opposes the motion of an object through the air. It is proportional to the velocity of the object. Therefore, the faster an object moves through the air, the greater the air resistance it experiences. A skydiver with a greater mass will have a higher terminal velocity and will fall faster than a skydiver with a smaller mass. .

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Force on the particle is defined as the application of the force field of one particle on another particle. The magnitude and direction of the electrical force will be 4.05×10⁴N towards the north.

Force on the particle is defined as the application of the force field of one particle on another particle. It is a type of virtual force.

The given data in the problem is

q₁ is the negative charge = 6 µC=6×10⁻⁶ C

q₂ is the positive charge = 3 µC=3×10⁻⁶ C

r is the distance between the charges=0.002 m

\(F_E\) is the electric force =?

The value of electric force will be;

\(\rm F_E= \frac{Kq_1q_2}{r^2} \\\\ F_E= \frac{9\times 10^9\times 6\times 10^{-6}\times3\times10^{-6}}{(0.002)^2}\\\\ \rm F_E=4.05\times10^4\;N\)

Hence the magnitude and direction of the electrical force will be 4.05×10⁴N towards the north.

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Answer:

DDDD

Explanation:

In flow separation, wake is defined as the region of flow trailing the body where the effects of the body on velocity are felt. The given statement is true. In flow separation, the wake is the region behind the body where the effects of the body on velocity are felt.

A pitot tube is used to measure only pressure head in a pipe flow. The given statement is false. Pitot tubes are used to measure both the stagnation pressure and the static pressure in a pipe flow.

The depth for nonuniform flow conditions is called normal depth. The given statement is false. Non-uniform flow is a type of fluid flow that is not constant throughout the flow's depth. The water depth in non-uniform flow is referred to as critical depth, not normal depth. The critical depth is the depth of flow at which the specific energy of a channel is a minimum for a given discharge.

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Answer:

you need kinetic energy because it is the energy that is used when In motion

The type of energy that one acquire when you eat a bowl of hot vegetable soup is chemical energy.

Chemical power the bonds of chemical molecules contain energy. Exothermic reactions are those in which chemical energy is released during the reaction, frequently in the form of heat.

Some of the heat energy needed for a reaction to continue can be stored as chemical energy in newly created bonds.

Food particles go through a chemical reaction that releases chemical energy when we eat it. The body then uses this energy to carry out its regular tasks.

As a result, when you eat a cup of vegetable soup, you also consume the chemical energy it contains.

Thus, the answer is chemical energy.

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Answer:

At the end points of motion (either side) the velocity must be zero because the velocity is changing from - to + (it can't turn around around without passing thru zero,

The velocity will then increase to the midpoint of the motion.

m g h = 1/2 m v^2    where h is the vertical distance thru which the pendulum travels

Therefore, the voltage in the secondary coil of transformer is 1200 V. Therefore, the current in the secondary coil is 0.006 A.

According to the transformer equation, the ratio of turns in the primary coil to turns in the secondary coil is equal to the ratio of the voltage in the primary coil to the voltage in the secondary coil:

Np/Ns = Vp/Vs

Where Np is the number of turns in the primary coil, Ns is the number of turns in the secondary coil, Vp is the voltage in the primary coil, and Vs is the voltage in the secondary coil.

Using the given values, we can solve for the voltage in the secondary coil:

Np/Ns = Vp/Vs

1500/150 = 120/Vs

Vs = (150*1200)/150

Vs = 1200 V

To find the current in the secondary coil, we can use the equation:

Ip/Is = Vs/Vp

Where Ip is the current in the primary coil, Is is the current in the secondary coil, Vs is the voltage in the secondary coil, and Vp is the voltage in the primary coil.

Substituting the known values, we get:

0.060/Is = 1200/120

Is = (0.060*120)/1200

Is = 0.006 A

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Answer:

calculate the free fall distance and velocity without air resistance from, the free fall. i hope that helps

Explanation:

Answer:

a, b, a, c, that should be the order from top to bottom

Answer:

Force down = 4.35*9.81

Force up = T

T - 4.35 * 9.81 = 4.35 * 1.78

T = 4.35 (9.81+1.78)

result:3.68

mark as brainliest :)

sya

Answer:

3.68 works for acellus

Explanation:

The tropical rainforests of Southeast Asia have over 6,000 species of plants and 450 species of birds.

These are the forests that get the most of the year. They are the most diverse forest on the earth such as the amazon.

These are the forests with very large grasses and occasional trees. They are found in Brazil and India.

These are the temperate forests in which trees shed all their leaves in one seson.

Therefore, the tropical rainforests of Southeast Asia have over 6,000 species of plants and 450 species of birds.

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Answer:

Its b. the tropical rainforest

Explanation:

The region A is receiving more sunlight and there are experience  summer because, the northern hemisphere of earth is tilted towards the sun. Hence, option D is correct.

Different seasons on earth are made by the revolution of earth through sun and the tilted axis of earth's rotation make the seasons differ in each region. Earth is not in perfect circular motion, the tilt in the rotational axis of earth make the difference in sunlight radiated in each point of earths surface.

The northern hemisphere of earth is tilted towards sun. Thus, northern hemisphere have more heat radiated than the south. The Atlantic region in the south is far from sun and that's why  there is always cold and winter.

The region A is in the northern hemisphere and it experience summer because of the tilted axis. Thus option D is correct.

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Answer:

because he is trying to break past you and sack your quarterback

Explanation:

Answer:

The energy output of a blender is 1.4 kWh. If the blender is 85% efficient, how much energy is lost to the surroundings?

⇒ 0.25 kWh

Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

\(a = \frac{f}{m} \\ \)

where

f is the force

m is the mass

We have

\(a = \frac{20}{2} \\ \)

We have the final answer as

Hope this helps you

Answer: BUTT

Explanation: Because its a Cheek;)

Answer:

It is (A) Calculate the force needed to stop the vehicle.

Explanation:

The relation v^2=u^2+2as using unit analysis​ can be expressed as  m^2/s^2  = m^2/s^2

The unit of v^2  that is been in the equation can be expressed as m^2/s^2

The unit of u² can as well be expressed as (m/s)^2 = m^2/s^2

Then 2as can be sen as the product of acceleration as well as  displacement which can be expressed as (m/s^2 * m)

= m^2/s^2

The analysis is that we ill bring the two side together as

[(m/s)^2] = [m^2/s^2 + m^2/s^2 ]

[ (m/s)^2]= [m^2/s^2]

[m^2/s^2]  = [m^2/s^2]

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So, after 4.50 s, the voltmeter reads 2.5 V because the capacitor has discharged, and the voltage across it has decreased.

A capacitor is an electronic component that stores electrical energy. In this scenario, the capacitor is initially charged to a potential of 12.0 V. When the capacitor is connected to a voltmeter with an internal resistance of 3.40 mΩ, the voltmeter reads 2.5 V after 4.50 s.
To understand what is happening, we need to consider the discharge of the capacitor. The voltage across the capacitor decreases over time as it discharges. The rate of discharge depends on the capacitance of the capacitor and the resistance of the circuit.
In this case, the voltmeter has an internal resistance of 3.40 mΩ. This resistance affects the rate of discharge. The smaller the resistance, the faster the discharge.
So, after 4.50 s, the voltmeter reads 2.5 V because the capacitor has discharged, and the voltage across it has decreased.
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Answer:

The card stays in place because of the air pressure inside the glass and the weight of the water. When the glass is filled with water and the card is placed on top, there is no air between the water and the card. When the glass is inverted, the weight of the water creates a vacuum, and the air pressure inside the glass decreases. This decrease in air pressure creates a force that presses the card against the mouth of the glass, which keeps the card in place.

When the glass is tilted sideways, the water can leak out and break the vacuum seal, causing the card to fall off. The force of gravity on the water pulls it towards the edge of the glass, creating a gap between the water and the card, which allows air to flow into the glass, breaking the vacuum seal.

When you place a card over the open top of a glass filled to the brim with water and invert it, the card stays in place because of the forces of air pressure and surface tension.

Air pressure is the force of the air pushing down on the top of the card. Surface tension is the force between two particles of water that creates a thin film of the liquid on the surface.

This creates an upward force which helps to keep the card in place. If the card is placed sideways, air pressure is no longer pushing down on the card, but surface tension is still helping to keep the card in place.

The card will stay in place because the water molecules are attracted to each other and form a bond which helps to keep the card in place.

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The precise moment when visible light energy from the sun is captured and converted to chemical energy is called Photosynthesis.

Define Photosynthesis.

The process by which light energy is transformed into chemical energy in the form of sugars is known as photosynthesis. Using light energy, glucose (or other sugars) are created from carbon dioxide and water, with oxygen being released as a byproduct.

When a photochemically activated specific chlorophyll molecule of the photosynthetic reaction center loses an electron through an oxidation reaction, light energy is transformed into chemical energy. Water and carbon dioxide are converted by plants into a sugar called glucose using the power of the sun. Plants use glucose as a source of energy and to create other compounds like cellulose and starch.

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