The internal carrying force of the 4 volts of the cell in the enclosed circuit is negligible. Find out
1 total resistance
2nd circuit
3 Differential difference between a and c points

The value of escape velocity will be 2.38 Km/s

The minimal speed necessary for an object to liberate itself from the gravitational attraction imposed by a big object is defined as escape speed, also known as escape velocity.

Escape velocity is the minimal velocity necessary to overcome a big body's gravitational potential and escape to infinity.

The velocity at which an item circles around a huge body is referred to as orbital velocity.

The escape speed from the moon can be calculated using the formula:

\(v_{escape = \sqrt{(2GM/r)\)

Where G is the gravitational constant (6.67x10^-11 N.m^2/kg^2),

M is the mass of the moon (7.36x10^22 kg), and

r is the radius of the moon (1740 km or 1.74x10^6 m).

Plugging in the values, we get:

\(v_{escape = \sqrt{(2 \times 6.67 \times 10^{-11} \times 7.36 \times 10^22 / 1.74 \times 10^6)\)

= 2.38 km/s

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Answer:

The shape of a screw is a cylindric shape that grows in diameter at the top. Along the cylindar portion, it has horizantal ridges that circulate around the screw.

Hope this helps, brainliest pls :D

Answer:

....................

Answer:

Explanation:

Distance = speed *time

as per the question, THE average speed is 40Km/h

time1 = S/40,time2 = S/40

now , time1 +time2

s/40+s/40

The time taken for Arun's journey can be calculated by dividing the distance to his school by the average speed. Assuming the school is 20km away, at an average speed of 40km/h, it would take Arun 30 minutes to reach school.

The question involves applying the concept of speed as being the distance traveled divided by the time it takes to get to the destination. To determine how long Arun's journey takes taking into account the average speed of 40km/h, we need to know the distance to school. However, if we assume the distance as 'd' kilometers, the time taken can be found by the formula: time = distance/speed

Let's say, for example, Arun’s school is 20 kilometers away. Using the formula time = distance/speed, we substitute the distance and speed into the formula: time = 20km / 40km/h = 0.5 hours. To convert this time into minutes, we multiply by 60 (since there are 60 minutes in an hour), which gives us 30 minutes. Therefore, if Arun’s school was 20 kilometers away, his journey would take him 30 minutes.

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For this ninth planet, astronomers would most likely assume that: it originated in another star system and was gravitationally captured.

A solar system is a collection of both outer and inner planetary (astronomical) bodies alongside the Moon that usually orbit around the Sun, in slightly elliptical orbits.  

Based on astronomical science, there are nine (9) planets in the solar system and these are;

Astronomers would most likely assume that a planet that orbited the Sun in an opposite direction in contrast to the other planets, originated in another star system and was gravitationally captured.

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Answer:

the electric energy travels through the plug or wire or whatever is connecting the energy source to the lightbulb, which conducts electricity, and to the light bulb. the electric energy is transfered into light energy and thermal energy

Explanation:

i hope i understood this question and answered it correctly XD

Answer:

48 Newtons

Explanation:

The force of friction between the sled and the snow is 48 newtons.

Given that,

Based on the above information, the calculation is as follows:

\(= 8\times 10x^{-1}N cos(53)\)

= 48 newtons

Therefore we can conclude that the force of friction between the sled and the snow is 48 newtons.

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Answer: The anser is C

Explanation:

It is the same if no external forces are added.

Based on the principle of conservation of linear momentum, the final total momentum of both carts compared to the initial total momentum is the same if no external forces are added.

The given information;

According to the principle of conservation of linear momentum, the total momentum before collision is equal to the total momentum after collision.

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

where;

Thus, based on this principle (conservation of linear momentum), the final total momentum of both carts compared to the initial total momentum is the same if no external forces are added.

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Answer:

Electron affinity is the energy change that results from adding an electron to a gaseous atom. For example, when a fluorine atom in the gaseous state gains an electron to form F⁻(g), the associated energy change is -328 kJ/mol.

Give brainliest please.

Answer:

Electron affinity is the energy change that results from adding an electron to a gaseous atom.

Sorry I don't know about the second one.

The current sensitivity of the first coil is  0.5 times that of the second coil. The voltage sensitivity of the first coil is 2.5 times that of the second coil.

Current sensitivity can be determined as how much a galvanometer will deflect on flowing some current through it. Voltage sensitivity can be determined by how much the galvanometer will show deflection when a potential difference is developed across its ends.

Current sensitivity is directly proportional to the number of turns while voltage sensitivity is the ratio of the number of turns of the coil to the resistance.

The number of turns in the first coil, n₁ = 50

The number of turns in the second coil, n₂= 100

The current sensitivity:

\(\frac{CS_1}{CS_2}= \frac{50}{100}\)

C.S₁ = 0.5 C.S₂

The current sensitivity of the first coil is  0.5 times that of the second coil.

Given the resistance of the first coil = 10 ohm

The resistance of the second coil = 50 ohm

The voltage sensitivity of coils:

\(\frac{V.S_1}{V.S_2} =\frac{50/10}{100/50}\)

V.S₁ = 2.5 V.S₂

The voltage sensitivity of the first coil is 2.5 times that of the second coil.

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Answer:

Your position would be -1

Explanation:

I think that's the answer you would need to collaborate more so i can give you a clear answer.

This question involves the concepts of potential difference, inductance, and current.

The minimum time that should be allowed for the current to change is "0.694 ms".

The inductance of an inductor is given by the following formula:

\(E=L\frac{\Delta I}{\Delta t}\\\)

where,

E = potential difference across the inductor = 360 volts

L = inductance of the inductor = 250 mH = 0.25 H

ΔI = change in current = 2.5 A - 1.5 A = 1 A

Δt = time required = ?

Therefore,

\(\Delta t = \frac{(0.25\ H)(1\ A)}{360\ volts}\)

Δt = 6.94 x 10⁻⁴ s = 0.694 ms

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Answer:

Sketch the situation.

b. Calculate the potential energy, the kinetic energy, and the total energy of the car as it leaves the cliff.

c. Make a graph displaying the kinetic, gravitational potential, and total energy of the car at each 10 m

increment of height as it drops

Explanation:

The potential energy of the car at that position is 10.6 x 10⁵ J.

Potential energy of an object is defined as the energy acquired by the object by virtue its position.

Here,

Mass of the car, m = 1200 kg

Speed of the car, v = 29 m/s

Height of the cliff, h = 90 m

Therefore,

Potential energy of the car, PE = mgh

PE = 1200 x 9.8 x 90

PE = 10.6 x 10⁵ J

Hence,

The potential energy of the car at that position is 10.6 x 10⁵ J.

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It is true that Newton's first law states that an object in motion will stay in motion unless acted upon by external force.

Another name for Newton's first law of motion is the law of inertia. According to this law, unless an external force acts upon an object, it will continue to be at rest or move at a constant speed.

An object's motion will not change unless something outside of the object causes it to change. This law helps us explain why objects tend to keep doing what they are already doing unless something happens to stop them or change their motion.

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Answer:7.99 m/s^2

Explanation:

Answer:

Beyond the formation of iron, nuclear energy can be produced only by fission of heavy nuclei back toward lighter ones

Answer:

the answer is C

Explanation: comparing a face to a model would not me accurate on a computer, if you had a physical model it would be accurate. hope this helps!!

Answer:

The answer is A

Explanation:

bevause i got that wrong on apex

Answer:

v = 5.42 [m/s]

Explanation:

To solve this problem we have to use the concept of energy transformation which tells us that kinetic energy is transformed into potential energy and vice versa.

The potential energy can be defined by means of the following equation.

Ep = m*g*h

where:

m = mass = 0.4 [kg]

g = gravity acceleration = 9.81 [m/s²]

h = elevation = 1.5 [m]

Ep = 0.4*9.81*1.5

Ep = 5.88 [J]

Since the potential energy is equal to the kinetic energy, we can find the velocity by means of the kinetic energy equation.

Ek = 0.5*m*v²

where:

Ek = kinetic energy  = 5.88 [J]

5.88 = 0.5*0.4*v²

v = 5.42 [m/s]

Heat waves are described via way of means of the distinction in temperature in comparison to the everyday normal temperature standard (typical) of a area/region.

A warmth wave is a duration of abnormally warm climate commonly lasting extra than days. Heat waves can stand up with or without excessive humidity. They've the capacity to cover a big place, exposing an immoderate range of people to risky warmness.

A warmth wave is a really volatile weather circumstance in which temperatures soar properly above 90° F. This immoderate warmth combines with excessive ranges of humidity and creates a warm temperature bubble over a sure area for a extended time period.

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Answer:

Help with what

Explanation:

Answer:

easier topics require less time to review

Explanation:

Answer:

The information shows the masses after the compounds are balanced.

2MgO + 2Cl2 → 2MgCl2 + O2

85g + 156g → 188g + 53g

53gas total mass in reactant is equal to product.

A.

53g of O2, because all mass must be conserved.

To determine the size of the NEMA starter required for a 25-horsepower 3-phase motor operating at 208 volts AC, we need to consider the motor's full-load current (FLC) and select a NEMA starter with an appropriate ampere rating.

The full-load current (FLC) of the motor can be calculated using the formula:

FLC (Amps) = (Power (HP) × 746) / (Voltage (Volts) × Efficiency × Power Factor)

Given:

Power = 25 horsepower

Voltage = 208 volts

The efficiency and power factor of the motor are not provided, so we will assume typical values for estimation purposes. Let's assume an efficiency of 0.9 and a power factor of 0.85.

Using these values, we can calculate the full-load current:

FLC = (25 HP × 746) / (208 V × 0.9 × 0.85)

FLC ≈ 81.97 Amps

Now, we need to select a NEMA starter with an ampere rating that can handle the calculated full-load current of approximately 81.97 Amps. The NEMA starter should have a rating equal to or higher than this value to ensure proper operation and protection of the motor.

NEMA starters are typically available in standard ampere ratings such as 90, 100, 135, 270, etc. Since the calculated FLC is approximately 81.97 Amps, a suitable NEMA starter for this application would be a size rated at 90 or 100 Amps.

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An object in projectile motion will follow curved up from the ground, curved down toward the ground. The correct options are (a) and (b).

An object in projectile motion will follow a curved path. Specifically, it will follow a curved trajectory that is symmetric around the highest point of its flight. The object will initially move horizontally while also experiencing vertical motion due to the force of gravity. As a result, the object's path will be a parabolic curve.

So, the correct answer is Curved up from the ground (when initially launched) and curved down toward the ground (when it reaches the highest point and descends). The correct options are (a) and (b).

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Answer:

A) the initial point all energy is elastic potential and the final point all energy is kinetic

B) a bar graph the two bars have the same height and the sum of their height is the initial energy

C) two bars, one for the  kinetic energy and the other for the gravitational potential energy.

Explanation:

A) For this exercise we must use the energy conservation relations

starting point. When the spring is compressed

        Em₀ = K_e = ½ k x²

end point, at the bottom of the loop

        Em_f = K = ½ m v²

energy is conserved

        Em₀ = Em_f

         ½ k x² = ½ m v²

         v = \(\sqrt{ \frac{k}{m} }\)   x

In a bar graph the initial point all energy is elastic potential and the final point all energy is kinetic

B) intermediate point in a quarter of the radius

In this case we use the lower part of the loop as the starting point and the quarter part of the bow as the end point.

        Em₀ = K

         Em_f = K + U = ½ m v² + m g R

in a bar graph the two bars have the same height and the sum of their height is the initial energy

C) End point highest part of the loop

   starting point, bottom of loop

         Emo = K = ½ m v₀²

from part A of the exercise we saw that it is equal to the elastic energy of the spring

    final point. Highest part of the loop

         Emf = K + U

         Em_f = ½ m \(v_{f}^2\) + mg (2R)

where R is the radius of the loop

         Em₀ = Em_f

        1/2 m v₀² = 1/2 m v_{f}^2+ mg 2R

        v₀² = v_f^2 + 4gR

In a bar graph there are two bars, one for the  kinetic energy and the other for the gravitational potential energy. The sum of the heights of these bars is the initial energy, so the energy is transformed but not created or destroyed in the process.

Answer:

greater than 10 Newton .

Answer:

2.467×10^7 litres

Explanation:

Using the formula V1/T1 = V2/T2

V1 and V2 are the initial and final volume respectively

T1 and T2 are their respective temperatures

Given

V1 = 7.4×10^7litres

T1 = 120°C

T2 = 40°C

Required

V2

From the formula

V2 = V1T2/T1

V2 = 7.4×10^7(40)/120

V2 = (7.4×10^7)/3

V2 = 2.467×10^7 litres

Hence the new volume of the gas will be 2.467×10^7 litres

Explanation:

the the electromagnet is placed between two poles of another magnet when the current from the voltage source flows through the coil and the magnetic field is produced around the electromagnetic the poles and the magnet interact with the poles from the electric magnet causing the motor to turn and more coils growing stronger into the motor