Scientific notation is a method of expressing very small and very large numbers *

yes
No

Explanation:

Answer:

300 Joules

Explanation:

Just use the Work formula:

W = F . D

W = 10 . 30

W = 300 Joules

According to the question, If the charge of one of the objects is tripled and the distance separating the objects is tripled, then the new force would be 0.24 N.

Force is an interaction between two objects or bodies that causes a change in their motion, direction or shape. Forces can be divided into two categories: contact forces and non-contact forces. Contact forces are forces that require two objects to be in physical contact before the force can be applied. Examples of contact forces include friction, air resistance, tension and compression. Non-contact forces do not require physical contact to be exerted.

The force between two charged objects is given by the equation F = kq₁q₂/r, where k is a constant, q₁ and q₂ are the charges of the two objects, and r is the distance between them. When one of the charges is tripled and the distance is tripled, the new force becomes F = k(3q₁)(3q₂)/(3r)₂  = 3kq₁q₂/r₂ = 3 × 0.080 N = 0.24 N.

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Atoms held together through shared electrons.

A molecule is composed of atoms. Atoms are the smallest particles of a substance which can take part in a chemical reaction. Atoms are composed of electrons and the electrons in the outermost shell of atoms help bond atoms together in a molecule.

Hence, atoms are held together in molecules by electrons so they are held together through shared electrons.

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_______________

\(I_2=2I_1\)

\(L=\text{const}\)

_______________

\(\displaystyle \frac{W_2}{W_1}\; - \;?\)

_______________

\(\displaystyle \boldsymbol{\frac{W_2}{W_1}}=\frac{\dfrac{LI_2^2}{2} }{\dfrac{LI_1^2}{2} } =\frac{I_2^2}{I_1^2} =\bigg(\frac{I_2}{I_1} \bigg)^2=\bigg(\frac{2I_1}{I_1} \bigg)^2=2^2=\boldsymbol{4}\)

Based on the given data, we can perform the following calculations. The wet bulb depression, which is the difference between the dry bulb temperature and the wet bulb temperature, is found to be 12∘C.

However, the dew point temperature cannot be determined without knowledge of the vapor pressure of air, making its calculation unfeasible.

To calculate the relative humidity, we require the saturation vapor pressure at the dry bulb temperature.

By using the Antoine equation with the given constants, we find the saturation vapor pressure to be 1076.18 Pa.

Subsequently, utilizing the formula for partial pressure of water vapor, we determine the partial pressure to be 16.59 kPa.

Consequently, the relative humidity is calculated to be 1.54%. In summary, the wet-bulb depression is 12∘C, the dew point temperature is indeterminable, and the relative humidity is 1.54%.

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The correct answer is D. Amount of time and area of physical contact between the substances.

Explanation:

Heat transfer refers to the flow of thermal energy or heat between two or more objects. This process involves multiple factors and implies heat from the hottest object goes to the coldest one until there is an equilibrium. To begin, heat transfer depends on the amount of thermal energy in the objects because objects must have a different amount of thermal energy for heat to flow.

Besides this, the amount of energy that flows depends on the time and the contact between the substances of objects. Indeed, objects need to be in contact or close to each other for heat to transfer, and the time needs to be enough for the process to occur. For example, if you place a pot over the fire just for a few seconds it is likely the heat transferred is minimal, which does not occur if you leave the pot more time. At the same time if the pot is in close contact with fire more heat will be transferred.-

Answer:

the answer is D on edginuity.

Explanation:

The EMF of the secondary circuit is 3603.6V, the current in the primary circuit is 90.0A, the power drawn by the primary circuit is 10,800W, and the power supplied by the secondary circuit is 10,810.8W.

A step-up transformer is a device that increases the voltage of an alternating current (AC) power supply. It does this by using a primary coil with fewer turns of wire than the secondary coil, which has more turns of wire. The transformer works on the principle of electromagnetic induction.

We can use the following formulas to solve the problem:

EMF(primary) / EMF(secondary) = N(primary) / N(secondary)

I(primary) = I(secondary) * (N(secondary) / N(primary))

P(primary) = EMF(primary) * I(primary)

P(secondary) = EMF(secondary) * I(secondary)

where EMF is the electromotive force, N is the number of turns, I is the current, and P is the power.

Using the given values, we can solve for the unknowns:

EMF(primary) / EMF(secondary) = N(primary) / N(secondary)

EMF(primary) / EMF(secondary) = 500 / 15000

EMF(primary) = EMF(secondary) * (500 / 15000)

EMF(primary) = EMF(secondary) * 0.0333

EMF(primary) = 120V (given)

EMF(secondary) = 120V / 0.0333 = 3603.6V

I(primary) = I(secondary) * (N(secondary) / N(primary))

I(primary) = 3.0A * (15000 / 500)

I(primary) = 90.0A

P(primary) = EMF(primary) * I(primary)

P(primary) = 120V * 90.0A

P(primary) = 10,800W

P(secondary) = EMF(secondary) * I(secondary)

P(secondary) = 3603.6V * 3.0A

P(secondary) = 10,810.8W

Therefore,the primary circuit's current is 90.0 A, the secondary circuit's EMF is 3603.6 V, the primary circuit draws 10,800 W, and the secondary circuit supplies 10,810.8 W of power.

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Answer:

the rock hit the board you go flying because you board stops but you have energy still going so there for you go flying

Explanation:

Answer: You are correct the reasoning is inertia.

Explain: Inertia is the ability to resist change in movement. But that is irrelevant to this question. Newtons first law, “An object in motion stayes in motion unless stopped by an outside force. This case, the outside force is the ground.

The potential energy stored in the spring is 0.025 J.

This is the energy stored in a spring when its is stretched or compressed through a certain length.

To calculate the potential energy stored in a spring, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the potential energy stored in the spring is 0.025 J.

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Answer:

3 seconds

Explanation:

The initial velocity is 60 m/s at an angle of 30° to the horizontal, so we can calculate the initial velocity in the vertical direction as

Viy = Vi sin(θ)

Viy = 60 sin(30)

Viy = 60(0.5)

Viy = 30 m/s

Then, we can use the following equation to calculate the time that it takes to reach the maximum height.

At a maximum height the vertical velocity is 0 m/s, so replacing viy = 30 m/s, vfy = 0 m/s and g = 10 m/s², we get

Therefore, the answer is 3 seconds

Answer:

Explanation:

The definition of acceleration is the change in velocity over a period of time. If the girl's velocity is constant, that means it's not changing. Therefore, acceleration is 0 m/s/s

Answer:

7 meters, 2.8 meters

Explanation:

work done (nm) = force (n) * distance (m)

140= 20 * m

140/20 = m

m=7 meters

140= 50 * m

140/50 = m

m= 2.8 meters

Since capacitance is a scalar quantity and cannot be negative, the capacitance of the Earth-ionosphere system is 1.67 Farads

The Earth is negatively charged, carrying a total electric charge of -500,000 Coulombs (C). There is a potential difference of 300,000 Volts (300 kV) between the Earth and the positively charged ionosphere.

In order to determine the capacitance of the Earth-ionosphere system, we will use the formula for capacitance:

C = Q/V

where C represents capacitance, Q is the charge, and V is the potential difference. Plugging in the given values:

C = (-500,000 C) / (300,000 V)

C = -1.67 Farads

. Keep in mind that this is a simplified model of the Earth-ionosphere system, but it provides a useful estimation of its capacitance.

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Geosynchronous satellite makes a round around the earth in 29.93 hours. It makes a difference of 36000 km difference in the altitude.

Geosynchronous satellites are those that remains stationery with respect to a place. This is because their time period to complete a cycle is 23.93 hours, that is exactly the same as the rotation period of the earth. So the satellite appears stationery. The velocity of the geosynchronous satellite around the earth is 3.07 km/s or 3070 m/s.

GMm/(R+h)² = mv²/(R+h)

GM/v² = (R+h)²

Where R is the radius of the earth = 6.37 × 10⁶ m, h is the altitude of the satellite above the earth, and M is the mass of the earth that is 6 × 10²⁴ kg, G = 6.67 × 10⁻¹¹ Nm²/kg²

(6.67 × 10⁻¹¹ ×6 × 10²⁴)/(3070)² = (R+h)

(R+h) = 42461989 m

6.37 × 10⁶ + h = 42461989

h = 42461989 - 6.37 × 10⁶

h = 36.09 × 10⁶  m

h = 36000 km.

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Answer: A

Explanation:

as done tests about this the green house effect makes temputures

Answer:

it's A I believe I think it's A

The power of the resistor labeled x is 1.25 W.

To find the power of the resistor labeled x, we need to use the formula P = V²/R, where P is the power in watts,

V is the voltage in volts, and R is the resistance in ohms.
Since the battery voltage is 5 V and both resistors are 5 Ω, we can plug these values into the formula:
P = 5²/5

P = 25/5

P = 5 W
However, since there are two resistors in the circuit, the total power is divided equally between them. Therefore, the power of the resistor labeled x is:
P = 5 W/2

P = 2.5 W
But, the power of the resistor labeled x is actually half of this value, since the resistor labeled x is only one of the two resistors in the circuit. Therefore, the power of the resistor labeled x is:
P = 2.5 W/2

P = 1.25 W

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St. John’s

_________

o0o0o0o0o0

Answer:

Uranus, Pluto, Neptune, Saturn , Jupiter, mars, Venus ,mercury and sun

Answer:

Your answer is given below:

Explanation:

Answer:

True

Explanation:

The color an object reflects is what we see. What an object absorbs is what we do not see.

The detection of quasars from such great distances is due to their extreme luminosity and the fact that they emit massive amounts of energy.

Quasars are the most energetic objects in the universe, and their bright emissions make them visible even at very large distances. On the other hand, even the biggest and most luminous galaxies cannot be seen from such distances because their emissions are not as powerful as those of quasars.

Quasars are actually supermassive black holes at the center of galaxies that are actively feeding on surrounding matter. As they consume matter, they emit large amounts of energy in the form of light, X-rays, and other types of radiation. This energy is what makes them visible from great distances, even beyond the limits of what other galaxies can achieve.

The fact that quasars can be detected from distances beyond the reach of other galaxies is a testament to their extreme power and luminosity. It also helps astronomers to study the universe at a deeper level and gain insight into the evolution of galaxies and supermassive black holes.

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The increase in potential energy of a 60.0-kg man who climbs a ladder 10.0 meters high is 5,880 J.

The increase in the potential energy of the man is calculated as follows;

P.E = mgh

where;

P.E = 60 x 9.8 x 10

P.E = 5,880 J

Thus, the increase in potential energy of a 60.0-kg man who climbs a ladder 10.0 meters high is 5,880 J.

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The motion when she is running directly east is Δx = 11.7 and Δy = 15.

To determine the slope of a line select two points on the line and calculate the delta y change in y value to determine the change in elevation. Divide the change in x value by the delta x to determine the change in width. The derivative of y is the square of x with respect to y.

So the derivative of something squared with respect to something is multiplied by the derivative of that thing with respect to x. That's exactly the chain rule. Yes, it means exactly the same. y in Newton notation and dy/dx in Leibniz notation. Newton and Leibniz independently invented calculus at about the same time, so in this case, they used different notations to express the same rate of change.

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The person applying a greater pressure to the box is Cindy since it takes her a lesser  time to move the box up the hill.

The term pressure is defined as the force per unit area. WWe know that the magnitude of force applied is shown by the time taken to push the box up the hill.

Since Cindy pushes the box up the hill in only five seconds, it means that Cindy is applying a greater pressure to the box.

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The answer is 380km due south.

Applying the displacement formula and putting all given values in the above formula then we get easily answer.

What is velocity?

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