A 39-Ω resistor is connected across a 45-V battery. A. What is the current in the circuit? b. How much energy is used by the resistor in 5. 0 min?

Answer and Explanation:

The law of conversation of energy states that energy cannot be created or destroyed. The pendulum slows down and stops eventually not because the kinetic energy is destroyed, but it is transferred into sound and heat energy instead because there is air resistance and friction.

Kinetic energy => Gravitational potential energy (Loop but some energy transferring to heat and sound each time)

Explanation:

9 × 10^-3 × 13.59 = 0.122 N

The given question is incorrect I think the question you asking is:

A particle with a charge of +7.4μC is separated from another charged particle with a charge of -3.6μC by a distance of 1.4 m. Find the direction and the magnitude of the electrostatic force between the particles.

The electrostatic force between the particles is 0.122N. The direction of the force is from the negatively charged particle to the positively charged particle.

The electrostatic force is the force of attraction or repulsion between two charged particles due to their electric charges. It is a fundamental force in nature and is described by Coulomb's law, which states that the force is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.

Here in the Question,

Given Data:

Charge of particle 1 (q1) = +7.4 μC = 7.4 × 10^-6 C

Charge of particle 2 (q2) = -3.6 μC = -3.6 × 10^-6 C

Distance between the two particles (r) = 1.4 m

Coulomb's constant (k) = 8.99 × 10^9 N·m^2/C^2

Using Coulomb's law:

Electrostatic force (F) = (k * |q1| * |q2|) / r^2

where |q1| and |q2| are the magnitudes of the charges.

Substituting the values, we get:

F = (8.99 × 10^9 N·m^2/C^2) * (7.4 × 10^-6 C) * (3.6 × 10^-6 C) / (1.4 m)^2

F = 0.12219≈0.122

Therefore, The electrostatic force between the particles is 0.122N. Since one of the charges is negative, the force will be attractive, pulling the particles toward each other.

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Answer:

- pendulum use to determine acceleration

Explanation:

by calculating need to understand first the problem

the length is measure to be 2s

the lenght is also 2

2 obtainer on invistigation the most nearly is 8.

Answer:

The center of mass can be calculated by taking the masses you are trying to find the center of mass between and multiplying them by their positions

1) wavelength is 2

6m is 3 wavelengths so 6 = 3.. to find for one wavelength divide both sides by 3

6 = 3

2(m) = 1(wavelength)

2) amplitude is half of what they've given

2/2 = 1m

3) f = 1/t

time period = 1.5s for 3 wavelengths

time period for one wavelength is 1.5/3 = 0/5

so f = 1/0.5 = 2 Hz

Answer:

Sometimes Earth moves between the sun and the moon. When this happens, Earth blocks the sunlight that normally is reflected by the moon. (This sunlight is what causes the moon to shine.) Instead of light hitting the moon's surface, Earth's shadow falls on it.

Explanation:

I Just Know

Answer:

the density is 2

Explanation:

p= m/v

p is density

m is mass

v is volume

6/3 = 2

Answer:

I believe it's the Supreme Court issued a decision making segregation on buses illegal

Answer:

My aunt died and I am felling down today

Answer:

Red has the lowest energy and violet the highest. Beyond red and violet are many other kinds of light our human eyes can't see, much like there are sounds our ears can't hear. On one end of the electromagnetic spectrum are radio waves, which have wavelengths billions of times longer than those of visible light.

Explanation:

If you could hear it at all, it would sound very soft.

Answer:

20g/ml

Explanation:

the mass must be in gram and 90-60 =30

so 600g/30ml =20g/ml

Answer:

You could put sheet metal lining the bottom or something similar to that

Explanation:

Explanation:

Answer:

gas

Explanation:

because water become gas when above 100 celcius

Answer:

Gaseous (vapor) state

Explanation:

Because the boiling point of water is 100 C, then anything above that temperature would mean it remains in the vapor state.

Answer:

A

Explanation:

Diffraction, as the waves spread out (specifically spread to the whole house) by passing the door.

Answer:

C) The nuclei and electrons of the atoms are attracted to each other.

Answer:

1 million.

Explanation:

Answer: 100 Billion

Explanation: Scientists believe around  100 Billion Galaxies that exist across the observable universe

Answer: True

Explanation: When the said fluid ( liquid or gas) is heated the temperture of the molecules are increased, the molecules bump in to each other and plead out which then the volume increases because of the heat.

Let me know if that helps! :)

Answer:

The bigger balloon will have a larger area and would experience a greater buoyant force exerted on it which would make it even lighter than a smaller balloon and will have higher payload capacity than a smaller one.

Answer: Seatbelts relate to Newton's first law of motion because in the case of a car accident, someone in the car would continue forward until they hit somethng else. A seat belt will help prevent this because it will push back on you (action-reaction force).

Explanation:

Answer:

there is friction between the soccer ball and the table.

Explanation:

there is a friction between the table and the ball the friction opposing motion.there is reaction and action force a frictional force which acts against motion.

Answer:

B. bc I used it worked for me >:>

Answer:

[13,101 RPM]

[1372 rad/s]

Explanation:

Answer:

Fall

Explanation:

Archimedes' Principle

The displacement needed by the airplane to return to its starting point is 12.53 km.

From the question, we are to determine the displacement

Using the diagram attached, D is displacement

Using the Pythagorean theorem,

D² = 11² + 6²

D² = 121 + 36

D² = 157

D = √157

D = 12.53 km

Hence, the displacement needed by the airplane to return to its starting point is 12.53 km.

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Find attached an illustrative diagram

Answer:

I can't read the questions they aren't in the photo

Electric field simply means an electric property that is associated with each point in a space when there is a charge present.

Your information is incomplete. Therefore, an overview of an electric field will be given.

An electric field simply means the physical field that surrounds particles that are electrically charged.

It should be noted that the electric field exerts force on the other charged particles that are in the field by either attracting or repelling them.

In conclusion, the SI unit of an electric field is volts per meter. This is also equivalent to Newton's per coulomb.

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Answer:

Option A

Explanation:

Your answer is the first option or "C/kg." C/kg is a ratio for specific charge. C for the charge of the electron, kg for the mass of the electron. To find the specific charge we divide the two, which usually involves scientific notations and simplifying.

Example:
[tex]\frac{C}{kg}[/tex]
[tex]\frac{3.4\times10^3C}{2.7\times10^5kg}[/tex]

Hope this helps.

The late collisions would be observed on the half-duplex end of this type of connection. It occurs when a connection there are two duplex formats.

A duplex mode is a type of Ethernet network capable of sending and receiving data simultaneously.

A duplex connection device is an approach in which point-to-point connection data are transmitted in both directions.

In a duplex connection, data are transmitted at the same time simultaneously (duplex) and/or in one direction at each time (half-duplex).

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Answer:

only E is true

Explanation:

A) to find out if it would fall 4x as fast by 2x the time we can look at the formula for free fall:

for free fall the Y = [tex]\frac{1}{2}[/tex]g[tex]t^{2}[/tex] where Y is the distance fallen, g is gravity and t is time

so since the rate at which an object falls is the same (gravity stays the same) it will not fall faster with any alteration

B) An object would fall half the distance if you double the time

here we may need to check with an example:

lets say we fall for 2 seconds in the first and 4 in the second:

Y= 1/2 (9.8) (2)^2 gives 19.6m fallen

Y= 1/2 (9.8) (4)^2 gives 78.4m fallen

from this we can see that doubling the time does not half the distance

C) all objects fall at the same rate no matter their mass so this statement is false

D) from the example above we see again that doubling time does not double the distance

E) this statement is true

Option e is correct. So that a 2 kg object falls as fast as a 1 kg object. Height attained depends upon the time factor.

The vertical distance between the object's top and bottom is defined as height. It is measured in centimeters, inches, meters, and other units.

The height attained during free fall ;

[tex]\rm H = ut + \frac{1}{2}gt^2 \\\\ u = 0 \\\\ H=\frac{1}{2}gt^2[/tex]

The height attained during free fall is independent of the mass. Due to that, a 2 kg object falls as fast as a 1 kg object.

Hence,option e is correct.

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