calculate the current of a lightning bolt that delivers a charge of 35 columns to the ground in atime

The vertical nature of the Hayashi track on the H-R diagram So, the correct answer to the question is b. The star remains the same luminosity.

Indicates that as a protostar moves along this track, its temperature remains roughly constant while its luminosity increases. This is because during the early stages of a star's evolution, it is powered by the release of gravitational potential energy as it contracts. As the protostar contracts, its interior becomes denser and hotter, and it emits more radiation, causing its luminosity to increase. However, the protostar remains relatively cool on the Hayashi track because it is still surrounded by a thick envelope of gas and dust that traps most of the radiation produced by the star's interior. This results in the star having a nearly constant temperature, and therefore a nearly constant color, as it moves vertically along the Hayashi track.

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Answer:

v₂ = 1.8 [m/s]

Explanation:

To be able to solve this problem we must raise the principle of conservation and quantity of movement. It is going to study the momentum before and after the firing of the rifle.

P = m*v

where:

P = momentum [kg*m/s]

m = mass [kg]

v = velocity [m/s]

Now we need to analyze the moment before and after the shot.

\((m_{1}+m_{2})*v_{1}=-(m_{1}*v_{2})+(m_{2}*v_{3})\)

where:

m₁ = mass of the rifle = 5 [kg]

v₁ = velocity of the rifle and the bullet before firing = 0 (no movement)

m₂ = mass of the bullet = 15 [g] = 0.015 [kg]

v₂ = velocity of recoil [m/s]

v₃ = velocity of the bullet after firing = 600 [m/s]

Now replacing:

\((5+0.015)*0 = -(5*v_{2})+(0.015*600)\\9 = (5*v_{2})\\v_{2}=1.8 [m/s]\)

Momentum is the product of mass and velocity. The recoil velocity of the rifle weighing 5 kg is 1.8 m/s.

According to the law of conservation of momentum if two objects are in contact with each other then for that system of the two objects the momentum of the object before will be equal to the momentum of the object after the collision.

GIven to us

Mass of the rifle, M = 5 kg

Mass of the bullet, m = 15 g = 0.015 kg

Velocity of the bullet afterwards, v₂ = 600 m/s

We know that according to the law of conservation of momentum, the momentum of the bullet and riffle before shooting will be equal to the momentum of the bullet and riffle after shooting.

\(Mu_1 + mu_1 = Mv_1 + mv_2\)

Since, before shooting the bullet was in the riffle and the velocity of both was 0,

\(M(0) + m(0) = Mv_1 + mv_2\\\\-Mv_1 = mv_2\\\\v_1 = -\dfrac{m \times v_2}{M}\)

Substitute the values,

\(v_1 = -\dfrac{0.015 \times 600}{5}\\\\v_1 = -1.8\rm\ m/s\)

Thus, the recoil of the rifle is -1.8 m/s, the negative sign denotes that the velocity of recoil was in opposite direction to the bullet.

Hence, the recoil velocity of the rifle weighing 5 kg is 1.8 m/s.

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Here are the ways.

First sunlight enters leaves' chlorophyll . Water comes through roots and Carbon dioxide from atmosphere. All combine to form carbohydrates and oxygen. After evaporation the tree releases water to atmosphere which comes down as rain.

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities.

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a)The aperture size of the radio telescope needs to be approximately 0.27 meters b)The aperture of a radio telescope needs to be much larger than that of an optical telescope because radio waves have much longer wavelengths compared to visible light. c)the resolving power of a telescope depends on the ratio of the wavelength of light.

a. To determine the aperture size of a radio telescope to achieve a resolution at 21 cm, we can use the Rayleigh criterion, which states that the minimum resolvable separation (δθ) is given by:

δθ = 1.22 * (λ / D)

Where λ is the wavelength of the radiation and D is the diameter of the telescope's aperture.

Given that the radio wavelength is 21 cm (or 0.21 m), and we want to achieve the same resolution as the optical telescope (1 second of arc), we can rearrange the formula to solve for D:

D = 1.22 * (λ / δθ)

D = 1.22 * (0.21 m / 1 second of arc)

Calculating the result:

D ≈ 0.27 m

Therefore, the aperture size of the radio telescope needs to be approximately 0.27 meters to achieve a resolution of 1 second of arc at a wavelength of 21 cm.

b. The Rayleigh criterion tells us that the resolution of an instrument is inversely proportional to the wavelength.

Since radio waves have longer wavelengths, the telescope's aperture needs to be larger to achieve the same resolution as an optical telescope. This is because a larger aperture collects more incoming waves and allows for finer spatial detail to be resolved.

c. The ability to resolve two objects using a telescope depends on the size of the aperture relative to the wavelength of the radiation. When it comes to resolving stars, the resolving power of a telescope depends on the ratio of the wavelength of light to the size of the telescope's aperture (λ/D).

Blue light has a shorter wavelength compared to red light. Since the resolving power is directly proportional to the wavelength, a shorter wavelength of blue light allows for better resolution.

Therefore, two predominantly blue stars can be resolved because their shorter wavelength allows for finer detail to be distinguished, while the same separation between two predominantly red stars cannot be resolved due to the longer wavelength.

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The force exerted by the package on the astronaut is 210 N. Thus, the package exerts a force of 210 N on the astronaut in the opposite direction.

Now, according to the question,

A 70kg astronaut throws a 7kg package in space with an acceleration of 3 m/s².

Thus, using the formula F= m * a, we can easily calculate the force exerted by the astronaut on the package as follows:

F = (70kg) * (3 m/s²)F = 210 N

Therefore, the astronaut exerts a force of 210 N on the 7 kg package in space.

Now, to determine the force and acceleration exerted by the package on the astronaut, we can again use the same formula, F = m * a.

Here, m will be the mass of the package and a will be the acceleration of the package. The acceleration of the package can be calculated as follows:

a = Force / Mass

a = (210 N) / (7kg)

a = 30 m/s²

Now that we have the value of acceleration, we can calculate the force exerted by the package on the astronaut as follows:F = m * a

F = (7kg) * (30 m/s²)F = 210 N

Thus, the package exerts a force of 210 N on the astronaut in the opposite direction.

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Answer:

1226.25 N

Explanation:

w = mg = 125 (9.81) = 1226.25 N

Answer:

i cant do your whole assignment for you man

Explanation:

Answer:

64q

Explanation:

Note that

Here

Capacitance C and potential V is given

We know

So charge is also same

Now

there are 64 drops so 64q charge

Answer:

Below

Explanation:

Potential Energy of the cars is turned into Kinetic Energy (ignoring friction)

mgh = 1/2 mv^2       divide both sides by 'm'

gh = 1/2 v^2               solve for v

v = sqrt (2gh)            Note that the mass of the cars is irrelevent

For the first car :     25 cm = .25 m

                                  v = sqrt (2 * 9.81* .25) = 2.2 m/s

 Similarly , for car 2      v = 4.8 m/s           (115 cm = 1.15 m)

Explanation:

laws of motion

H=ut + 0.5gt^2

but u(initial velocity)=0 and g=10m/s^2

H=5t^2

=5×10^2

=5 × 100

=500m

Newton's first law of motion says that an object will continue to stay at rest or at a constant velocity until acted upon by an external force.

This law is also referred to as the law of inertia. It is one of three laws of motion that Sir Isaac Newton established in the seventeenth century.

According to the first law of motion, an object at rest or in motion will continue to remain so unless acted upon by an external force.

Inertia is a term used to describe the resistance of an object to a change in its state of motion.

The greater the mass of an object, the more resistance it will have to a change in its state of motion.

As a result, objects with more mass are more difficult to move, while objects with less mass are easier to move.

This concept has implications in various aspects of science and engineering.

For example, understanding the principles of inertia is important in the design of automobiles and roller coasters, where the forces acting on objects in motion are critical factors in determining their safety and performance.

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Explanation:

look up the coordinates or if they provide you with a map use that

Answer:

find each point in and draw a straight line until they touch and whatever is there is the country

Answer:

15.96atm

Explanation

According to general gas equation

P1V1/T1 = P2V2/T2

P1 and P2 are  pressures

V1 and V2 are the volumes

T1 and T2 are the temperatures

Given

P2 = 2.00atm

V1 = 18.8L

v2 = 300l

t1 = 200k

T2 = 400K

Required

P1 = ?

Substitute

P1 =P2V2T1/T2 V1

P1 = 2 * 300*200/400*18.8

P1 = 120000/7520

P1 = 15.96atm'

Hence the original pressure is 15.96atm

Answer:

No, because a scientific law is always absolutely true, no matter what a vote could not change a scientific law. People can vote how fast the speed of light is per second, but light will always be the speed it is no matter what.

Answer:

θ_c = 36.87°

Explanation:

Index of refraction for index medium; n_i = 2

Index of refraction for Refractive medium; n_r = 1.2

Formula to find the critical angle is given;

n_i(sin θ_c) = n_r(sin 90)

Where θ_c is critical angle.

Thus;

2 × (sin θ_c) = 1.2 × 1

(sin θ_c) = 1.2/2

(sin θ_c) = 0.6

θ_c = sin^(-1) 0.6

θ_c = 36.87°

The de Broglie wavelength of a nonrelativistic electron and a nonrelativistic proton is the same, they both have the same momentum, and the electron has higher kinetic energy than the proton.

A subatomic particle having a poor standard electric charge is the electron. Because they lack any discernible additives or substructure, electrons are considered to be fundamental particles and belong to the main technology of the lepton particle's own family. The radius of the electron is predicted to be around 2 10-10 cm using the best values for the wavelength and the scattering by a tough X-ray and?-ray matter.

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Answer:86,400

Explanation:

Answer:

I believe it wouled be Nutrients

Explanation:

hope this helps if not please let me know

As the rollercoaster moves from point A to point B, the correct answer is option c: The kinetic energy increases and the potential energy decreases.

At point A, the rollercoaster is at its highest position, which corresponds to the maximum potential energy and minimum kinetic energy. As the rollercoaster moves downwards towards point B, it gains speed and its height decreases.

This results in a decrease in potential energy since the height is decreasing. At the same time, the rollercoaster's speed increases, leading to an increase in kinetic energy.

The conservation of energy principle states that the total mechanical energy (the sum of potential energy and kinetic energy) of a system remains constant in the absence of external forces.

In this case, as the rollercoaster moves from point A to point B, the decrease in potential energy is equal to the increase in kinetic energy, keeping the total mechanical energy constant.

Therefore, the correct answer is option c: The kinetic energy increases and the potential energy decreases.

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Because all movement begin in the spine and radiate through the body.

option A.

The brain, situated in the cranial cavity is an important internal organ. It is the control center of our body. It controls the movements and all that we do.

The component of the central nervous system are;

The spinal cord plays a crucial role in coordinating movement and relaying signals between the brain and the rest of the body.

So we can conclude that paralysis often results from severe spinal injuries because the spinal cord is a critical pathway for transmitting signals between the brain and the rest of the body.

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The conductivity of a material is determined by the number of free electrons. Insulators have few or no free electrons.

The insulators are composed of a few electrons and only a tiny amount of electrical current can pass through them. The wires, however, make for superior electrical conductors. In contrast to metal, which is a very excellent conductor, rubber is a poor insulator.

A few electrons make up the insulator, which allows very little electrical current to pass through it. While the wires are excellent electrical conductors. Rubber is a poor insulator while metal is a very excellent conductor.

As a result, the conductor has been used for wiring and can be efficiently converted to use energy. Because the insulator is a weak absorber, energy cannot be transferred.

Therefore, the correct answer is insulators.

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Answer:

^ correct

Explanation:

Option A on edge 2020

Answer:

No.

Explanation:

No, increasing the frequency of a wave will not increase it's wavelength. Rather it will decrease the wavelength because frequency and wavelength are inversely related.

According to Formula:

v = f(lemda)

If the speed is kept constant to find the relationship between f and wavelength.

=> f is inversely propotional to wavelength.

Hope this helps!

Have a great day!

A bicycle and rideer travel along a road. the true about the sentence is: a. the bicycle and the rider undergo translation. The rider moving because you have to push the pedals and make the bike moves too.

The type of electromagnetic wave that has most energy is gamma rays, the correct option is A.

In physics, electromagnetic radiation is made up of electromagnetic field waves that travel through space carrying electromagnetic radiant energy.

Radio waves, microwaves, infrared, light, ultraviolet, X-rays, and gamma rays are all examples of electromagnetic waves. These waves are all part of the electromagnetic spectrum.

Despite extensive research, there is no evidence that low-level electromagnetic field exposure is harmful to human health.

Electromagnetic waves, particularly RF-EMFs emitted by mobile phones, are absorbed into the brain to the point where they can affect neuron activity.

On the electromagnetic spectrum, gamma rays have the highest energies and the shortest wavelengths.

Thus, the correct option is A.

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Answer:

Chemical weathering

Explanation:

This changes the molecular structure of rocks and soil. For instance, carbon dioxide from the air or soil sometimes combines with water in a process called carbonation. This produces a weak acid, called carbonic acid, that can dissolve rock.

Short-circuit current rating is an electrical equipment pertaining to safety under short-circuit conditions. considering the SCCR is crucial for designing and maintaining safe electrical installations.

The short-circuit current rating (SCCR) is a measure of an electrical equipment's ability to safely withstand and interrupt the flow of current during a short-circuit fault. A short-circuit fault occurs when an unintended connection is made between two points of differing electrical potential, resulting in a rapid and excessive flow of electrical current.

The SCCR is an important rating because it ensures that electrical equipment, such as circuit breakers, fuses, or other protective devices, can safely handle the high levels of fault current without causing damage or posing a risk to personnel, equipment, or the overall electrical system. It indicates the maximum level of short-circuit current that the equipment can safely handle without experiencing catastrophic failure or endangering the surrounding environment.

The SCCR is determined based on various factors, including the electrical characteristics of the equipment, the available fault current in the system, and the equipment's ability to interrupt or mitigate the fault current. It is typically specified by equipment manufacturers and should be considered during the design, installation, and maintenance of electrical systems to ensure proper protection and safety.

The short-circuit current rating is an electrical equipment rating that pertains to safety under short-circuit conditions. It ensures that electrical equipment can safely handle and interrupt the high levels of fault current without causing damage or endangering personnel or the electrical system. Understanding and considering the SCCR is crucial for designing and maintaining safe electrical installations.

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