Tisa makes a diagram to organize her notes about charging objects.

2 overlapping circles. The left circle is labeled Friction. The right circle is labeled Conduction. An X is in the overlap.
Which statement should she place in the region marked X?

Electrons move between objects.
The objects do not touch.
The objects develop opposite charges.
The objects have the same charge.

Answer:

1.91 × 10⁸ m/s

Explanation:

[tex]n = \frac{c}{v} \\ 1.57 = \frac{3.0 \times {10}^{8} }{v} \\ v = 1.91 \times {10}^{8} \: ms {}^{ - 1} [/tex]

The speed of light in a medium if the index of refraction is 1.57 is 1.91 * 10⁸ m/s

The refractive index of a material is the ratio of speed of light in air to speed of light in the medium. It is given by:

Refractive index(n) = speed of light in air(c) / speed of light in material(v)

Given that n = 1.57, c = 3 * 10⁸ m/s, hence:

n = c/v

1.57 = 3 * 10⁸ / v

v = 1.91 * 10⁸ m/s

The speed of light in a medium if the index of refraction is 1.57 is 1.91 * 10⁸ m/s

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Answer: 60

Explanation: if u hit it it will have impact and the impact added 10n

Answer:

no because it will also affect other people

The frequency of a wave is speed/wavelength.

Frequency is the number of cycles completed by a wave in one second.

The S.I unit of frequency is hertz.

The formula for the frequency of a wave is given by

Formula:

Where:

Make f the subject of the equation

Hence, The frequency of a wave is speed/wavelength.

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Answer:

C

Explanation:

Trust

Answer:

V

Explanation:

The S. I unit for voltage is v due to the fact that it's volts.

Answer:

R = 5.20 Ω,    L = 6.24 10⁻⁴ H

Explanation:

The current in an RL circuit is

           I = [tex]\frac{E}{R} \ (1- e^{- t/ \tau } )[/tex]

           τ = L / R

In the problem they indicate the value of the voltage, the current and the time constant, for which the resistance must be found

The stable current is when enough time has passed (t »τ) after closing the circuit, therefore the exponential term is very small and we can neglect it.

            I = E / R

            R = E / I

let's calculate

            R = 13.0 / 2.50

            R = 5.20 Ω

now with this value we can find the inductance of the coil

            τ = L / R

            L = τ  R

            L = 1.20 10⁻⁴   5.2

            L = 6.24 10⁻⁴ H

Answer:

Earth's gravity pulls objects downward towards the surface gravity pulls on the space station too as a result they fall around the planet the moon stays in orbit around the Earth for this same reason

Answer:

Atoms, molecules,  ions are all present in gases, liquids, and solids, but their behavior varies depending on the process. ...gas are well separated and not arranged in any particular order. There is no regular arrangement of liquids, so they are close together. Solids are arranged in a regular pattern and are tightly packed

Explanation:

Answer:

The rate of reaction A is higher.

answer is AAAAA !

Explanation:

Answer: A. The rate of reaction A is higher

Explanation:

Answer:

child i dont even know the answer for this question

Explanation:

Answer:

Say a 14 year old girl was at a construction site and she was asked to move something like a 10,000 pound brick( one brick). She would be acting on it as the unbalanced force but they would still not change their position.

so to say the girl would be doing everything she could to move that brick but the brick would still be in that same spot so the unbalanced force (the girl) would be acting on the thing that was at rest but it wouldn't move.

so the unbalanced force would not really be acting on the thing at rest; even though the unbalanced force was doing something to the brick.

( just think about it and you will eventually get it...just imagine in your head...)

Explanation:

Answer:

The Sun is a main-sequence star, and, as such, generates its energy by nuclear fusion of hydrogen nuclei into helium. In its core, the Sun fuses 620 million metric tons of hydrogen and makes 616 million metric tons of helium each second.

Answer:

are used by geneticists to determine the probability of different offspring genotypes.

Answer:

One and a half km per minute

Explanation:

Answer:

1.5

Explanation:

Answer:

its warmer than outside in winter and its colder than outside in summer

Explanation:

The perception of warmth or coolness is relative to the temperature difference between the body and the environment. Even though the temperature inside the room remains constant year-round, the relative temperature difference between the environment outside and the room can cause a subjective sensation of warmth or coolness.

Temperature is a physical quantity that measures the degree of hotness or coldness of a body or a substance. It is a scalar quantity, which means it has only a magnitude and no direction.

The SI unit of temperature is the Kelvin (K), but the temperature is commonly measured in degrees Celsius (°C) or degrees Fahrenheit (°F) as well.

The temperature difference is the numerical value of the difference between the temperatures of two objects or substances. It represents the amount of heat that flows from one object to another due to the temperature gradient between them. The temperature difference is also a scalar quantity, and its unit is usually expressed in degrees Celsius or Kelvin.

The temperature difference is important in many areas of science and engineering, including thermodynamics, heat transfer, and meteorology. It is also used to measure the efficiency of heating and cooling systems, such as air conditioners and refrigerators.

Here in this question,

This phenomenon occurs due to the relative difference in temperature between the environment outside and the temperature inside the room. The feeling of warmth or coolness is a subjective sensation that depends not only on the actual temperature but also on the difference in temperature between the person's body and their surroundings.

During the winter, the temperature outside is generally colder than the temperature inside the room which is kept at a constant temperature. When a person comes into the room from the cold outside, their body temperature is lower than the room temperature, so they feel warmer inside the room. This is because the heat from the warm room transfers to the person's body, raising their body temperature and making them feel warmer.

On the other hand, during the summer, the temperature outside is usually warmer than the temperature inside the room. When a person comes into the room from the hot outside, their body temperature is higher than the room temperature, so they feel cooler inside the room. This is because the heat from the person's body transfers to the cooler room, lowering their body temperature and making them feel cooler.

Therefore, the relative temperature difference between the environment outside and the room can cause a subjective sensation of warmth or coolness.

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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

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Answer:

Absolute zero is where the particles/molecules are not moving at all, meaning that there is no heat.

This means that the answer is:

1. All particles are moving and this movement allows us to measure the thermal energy of an object or substance. If the particles were able to completely stop moving this would be called reaching absolute zero.

Answer:

According to the options you gave, the answer is one

Explanation:

Absolute zero is defined by something being so cold the particles do not move

Force required to accelerate 10 kg object to 5.9 m/s/s ?

Mass = 10 kg

Acceleration = 5.9 m/s^2

Force = Mass * Acceleration

Force = 10 kg * 5.9 m/s^2

Force = 59 kg m /s^2 = 59 N

Answer:

I would say tunnel vision cause your only using one eye and if your looking through a tiny space your vision gets blury

Explanation:

Answer:

The Light was reflected, b.

Explanation:

If the flashlight was pointed at the mirror, it was reflected because it did not stop on the mirror or go through the mirror or reflect in different ways.

Answer:

 U = 2,195 10⁵ J

Explanation:

The potential energy is

      U = m g and

in this case each person has a mass of 75 kg and the elevator has a mass of 500 kg, the total mass is

 m_total = m_elevator + 4 m_person

      m_total = 500 + 4 75

      m_toal = 800 kg

let's calculate

       U = 800 9.8 28

       U = 2,195 10⁵ J

Answer:

A

Explanation:

if its wronge im so sorry

Answer:

a) The distance after 1 minute will be x = 600 m.

b) The distance of vertical drop from A to B is  [tex]\Delta y=17658\: m[/tex].

Explanation:

Let's use the parabolic motion equations. Here we have a horizontal initial velocity, and knowing that the horizontal velocity is a constant we have:

a)

[tex]v_{x}=\frac{\Delta x}{\Delta t}[/tex]    (1)

Where:

Usinf (1) we find Δx:

[tex]\Delta x=v_{x}\Delta t[/tex]    

[tex]\Delta x=10*60=600 m[/tex]      

Therefore, the distance after 1 minute will be x = 600 m

b)

Here we need to find Δy = y(A)-y(B), this is the distance of vertical drop from A to B.

Using the following equation we will get it:

[tex]y_{B}=y_{A}+v_{iy}t-\frac{1}{2}gt^{2}[/tex]

Let's recall that the initial velocity in the y-direction is 0.

[tex]y_{A}-y_{B}=0t+\frac{1}{2}gt^{2}[/tex]

[tex]\Delta y=\frac{1}{2}gt^{2}[/tex]

[tex]\Delta y=\frac{1}{2}(9.81)(60)^{2}[/tex]  

[tex]\Delta y=17658\: m[/tex]  

Therefore, the distance of vertical drop from A to B is  [tex]\Delta y=17658\: m[/tex].

I hope it helps you!