What is the magnitude of the gravitational force between an electron and a proton separated by a distance of 1.0 x 10-10 meter?

A PNP transistor is formed by sandwiching a very thin piece of p-type germanium between two slices of n-type germanium.

In a PNP transistor, the two outer layers of the sandwich are made of n-type germanium, which has an excess of electrons. The middle layer is made of p-type germanium, which has a deficiency of electrons (or holes) that can accept electrons.

When a voltage is applied to the base of the transistor, it allows a small current to flow from the emitter to the collector. This current is controlled by the voltage applied to the base, and can be used to amplify or switch electronic signals.

The PNP transistor is one of two main types of bipolar junction transistors (BJTs). The other type is the NPN transistor, which is formed by sandwiching a thin piece of n-type material between two pieces of p-type material.

Both PNP and NPN transistors are widely used in electronic circuits as amplifiers, switches, and other applications. They are essential components of modern electronics and have revolutionized the field of electronics and computing.

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The Angular speed of the  bicycle wheel that the cyclist is riding is found to be 1884 radian per minute .

The cyclist is riding a bicycle whose wheels have a radius of 14 inches and the wheel is rotating with 300 revolutions per minute.

Now, we know,

Angular speed is the revolution made by an object in one second or a minute as per the requirement.

Now,

we know,

1 revolution is equal to 2π.

So, now, we can write,

1 revolution = 2π

For 300 revolution,

300 x 1 revolution = 300 x 2π

300 revolutions = 600π

Putting the value of π = 3.14

Revolution made in one minute = 3.14 x 600

Revolution made in one minute = 1884

So, the angular speed of the wheel is 1884 radian per minute.

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Answer:

1. True

2. False, I think.

3. False.

4. True

Explanation:

Hope this helped, feel free to respond with questions!

Answer:

I believe it is the first one

Explanation:

hmmm all of u stay safe

4301154259

Pas 1234

I don't think so

Answer:

h

Explanation:

beautiful answer

Answer:

h= 0.45 m

Explanation:

PE= 1/2 mv^2             KE= mgh

v= 3m/s

vf= 0 m/s

h=?

PE= 1/2(1kg)(3m/s)^2

PE= 4.5 J

4.5 J/ 1kg(9.8 m/s^2)

h=0.45 m

The height of the ball above the ground when it stops is 0.46 m.

The initial kinetic energy of the ball is equal to the final potential energy of the ball.

⇒ Formula:

⇒ Where:

⇒ make h the subject of the equation

From the question,

⇒ Given:

⇒ Substitute these values into equation 2

Hence, the height of the ball above the ground when it stops is 0.46 m.

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From the calculation;

1) Melting point of indium = 171.4°

2) The resistance is 52.9 ohm

3) The power dissipated is  834 W

The temperature coefficient of resistance is a measure of how much the resistance of a material changes with temperature. It quantifies the relationship between the change in resistance and the change in temperature.

We have that;

R1/R2 = (1 + αt1)/(1 + αt2)

50/76.8 = (1 + (3.92 * \(10^-3\) * 20))/(1 +  (3.92 *\(10^-3\) * t))

0.65 = 1.0784/1 + 0.00392t

0.65(1 + 0.00392t) =  1.0784

0.65 + 0.0025t = 1.0784

t = 171.4°

P = \(V^2\)/R

R = \(V^2\)/P

R = \(230^2\)/1000

R = 52.9 ohm

The new power is;

P =\(210^2\)/52.9

P = 834 W

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Both the average and instantaneous velocities well be same over the given interval if the acceleration is zero.

Instantaneous velocity is the rate of differential change of displacement with respect differential change in time. Mathematically -

v = dx/dt

Given is the acceleration of a school bus over a given time interval as zero.

For acceleration over a given time interval to be zero, it must be ensured that the the velocity of the object should remain constant. Mathematically-

a = (v - u)/(t₂ - t₁)

For acceleration [a] = 0, v = u. Therefore -

a = 0

The instantaneous velocity for zero acceleration between the time interval t₁ to t₂ will be equal to initial velocity only -

dx/dt = u          

This will be the instantaneous velocity and is equal to (u) at any instant.

Now -

dx = u dt

Integrating both sides, we get -

∫dx = ∫u dt

x = ut

Therefore, the average velocity will be =

v(avg) = x/Δt = ut/Δt

Now -

t = Δt for any specific time interval. Therefore -

v(avg) = ut/t = u

This is the average velocity and it is equal to (u).

Therefore, both the average and instantaneous velocities well be same over the given interval if the acceleration is zero.

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A lunar month is the period of time during which the Moon's phases repeat. There are around 29 days in a lunar month. There are therefore twelve lunar months Every two or three years, there is a lunar year with 13 full moons, which is used to adjust the days to the calendar like we do with leap years.

The Moon is a satellite that may have been created when the Earth was struck by the enormous planet Theia 4.5 billion (4500 million) years ago. A portion of the Earth broke off and was retained by gravity in an orbit around the planet.

The Moon has a 1738 km average radius. While the Moon travels around 4 cm away from Earth year, the average distance between them is 384400 km.

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The magnitude of the force of attraction between the Styrofoam plate and the aluminum dish is \(5.15 * 10^-7 N\).

We can use Coulomb's law to calculate the magnitude of the force of attraction between the Styrofoam plate and the aluminum dish. Coulomb's law states that the force between two point charges is proportional to the product of the charges and inversely proportional to the square of the distance between them:

\(F = k * (q1 * q2) / d^2\)

where F is the force, k is Coulomb's constant \((9 x 10^9 N*m^2/C^2)\), q1 and q2 are the charges of the two objects, and d is the distance between the centers of the objects.

Substituting the given values, we get:

\(F = (9 x 10^9 N*m^2/C^2) * ((-4.16 x 10^-10 C) * (8.85 x 10^-10 C)) / (0.0222 m)^2\)

\(F = -5.15 x 10^-7 N\)

The negative sign indicates that the force of attraction is attractive, which means that the Styrofoam plate and the aluminum dish are attracted to each other. Therefore, the magnitude of the force of attraction between the Styrofoam plate and the aluminum dish is\(5.15 x 10^-7 N.\)

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Elastic force is the type of force which the catapult applies to the stone.

This is a launching device which is composed of rubber and used in the study of projectile motion.

The type of force present in a rubber is elastic force which is applied as a result of pressure on it when the individual launches the stone towards the required target.

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The catapult applies elastic force to the stone which is converted to kinetic energy of the flying stone.

Elastic potential energy is the type of energy that is stored in an elastic material.

The catapult is an elastic material that converts elastic energy into kinetic energy of flying stone.

Thus, the catapult applies elastic force to the stone which is converted to kinetic energy of the flying stone.

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No kinetic energy is transferred to the hydrogen atom since it was initially stationary.

In an elastic collision, both momentum and kinetic energy are conserved. Since the hydrogen atom is initially stationary, the electron's initial kinetic energy will be transferred to the kinetic energy of the hydrogen atom after the collision.

The percentage of the electron's initial kinetic energy transferred to the hydrogen atom can be calculated by comparing the final kinetic energy of the hydrogen atom to the initial kinetic energy of the electron.

Let's assume the electron's initial kinetic energy is K1, and the final kinetic energy of the hydrogen atom is K2.

Since the hydrogen atom was initially stationary, its initial kinetic energy is zero (K2 = 0).

The conservation of kinetic energy tells us that K1 = K2.

Therefore, the percentage of the electron's initial kinetic energy transferred to the hydrogen atom is:

( K2 / K1 ) * 100 = ( 0 / K1 ) * 100 = 0%

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The velocity of the fish when it hits the water is 22.3 m/s.

The velocity of the diver is 8.85 m/s.

The height to which the runner’s center of mass is raised during the jump is 0.204 m.

Initial height of the bob is 0.224 m.

1) Speed of the bird, v₁ = 20 m/s

Mass of the fish, m = 2.5 kg

Height of the bird, h₁ = 5 m

The total mechanical energy of the fish before dropping is equal to that after dropping.

Total energy = KE + PE

1/2 mv₁² + mgh₁ = 1/2mv₂² + 0

Multiplying both sides by 2,

v₁² + 2gh₁ = v₂²

Therefore, the velocity of the fish when it hits the water is,

v₂ = √(v₁² + 2gh₁)

v₂ = √(20² + 2 x 9.8 x 5)

v₂ = 22.3 m/s

2) Weight of the diver, W = 740 N

Height from which the board is dropped, h = 10 m

W = mg

Therefore, mass of the diver,

m = W/g

m = 740/9.8

m = 108.82

So, the potential energy of the diver is converted into kinetic energy of the diver.

mgh + 0 = 1/2 mv²

v²= 2gh

Therefore, velocity of the diver is,

v = √2gh

v = √2 x 9.8 x 4

v = 8.85 m/s

3) Velocity of the runner, v = 2 m/s

KE = PE

1/2 mv² = mgh

v²/2 = gh

Therefore, the height to which the runner’s center of mass is raised during the jump is,

h = v²/2g

h = 2²/(2 x 9.8)

h = 0.204 m

4) Speed of the bob, v = 2.2 m/s

Initial height of the bob is,

h = v²/2g

h = (2.2)²/(2 x 9.8)

h = 0.224 m

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Answer:

100 newton

Explanation:

newton third law of motion says to every action there is an always an equal and opposite reaction so the magnitude will stay equal but opposite direction

Answer:

- 100N is the answer of this question

A 58.0 kg sailor jumps from a dock into a 28.0 kg rowboat at rest. If the velocity of the sailor is 2.20 m/s as he leaves the dock, the velocity of the sailor and the boat is 1.485 m/s.

We can use the principle of conservation of momentum. According to this principle, the total momentum before the jump is equal to the total momentum after the jump.

Before the jump, we have:

Initial momentum of the sailor = mass of the sailor × velocity of the sailor

\(P_s=m_s*v_s\)

After the jump, the sailor and the boat move together, so their momenta add up:

Final momentum of the sailor and the boat = (mass of the sailor + mass of the boat) × velocity of the sailor and the boat

\(P_f=(m_s+m_b)*v_f\)

Since momentum is conserved, we have:

\(P_s=P_f\)

\(m_s*v_s=(m_s+m_b)*v_f\)

Given:

mass of the sailor (\(m_s\)) = 58.0 kg

velocity of the sailor (\(v_s\)) = 2.20 m/s

mass of the boat (\(m_b\)) = 28.0 kg

We can rearrange the equation to solve for \(v_f\):

\(v_f=(m_s*v_s)/(m_s+m_b)\)

\(v_f=(58.0Kg *2.20m/s)/(58.0Kg+28.0Kg)\\\\v_f=1.485 m/s\)

Therefore, the velocity of the sailor and the boat after the jump is approximately 1.485 m/s.

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A force that resists motion of two surfaces that are touching is known as friction.

when attempting to slide an object across two surfaces, there is resistance. When "rough edges" interact at the molecular level, friction results: Every time there is friction, the direction of motion is reversed.

The force that opposes motion when the surface of one object rubs against the surface of another is known as friction.

opposing forces These comprise: Friction is a force that tries to stop two surfaces from slipping or sliding when they are in contact. The motion is countered by air resistance, which acts.

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Answer:

platinum, iridium, osmium, iron, zinc

The name of the gravitational force acting on a mass on the surface of the Earth is gravity larger masses have stronger  gravitational fields. If the field is stronger on a planet, objects will accelerate towards the ground at a faster  rate.​

Gravity is a force that attracts two objects with mass towards each other. It is the force that gives weight to physical objects and is what keeps us grounded on the surface of the Earth.

Therefore, The strength of the gravitational field depends on the mass of the object creating the field and the distance from the object. The larger the mass of the object, the stronger the gravitational field. The closer an object is to the source of the gravitational field, the stronger the field will be.

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The name of the gravitational force acting on a mass on the surface of the Earth is weight.

Larger masses have greater  gravitational fields.

If the field is stronger on a planet, objects will accelerate towards the ground at a constant rate.​

Gravitational force is described as the force of attraction between all masses in the universe more especially the attraction of the earth's mass for bodies near its surface.

This is better explained by Newton's law of universal gravitation states that every particle attracts every other particle in the universe with a force that is proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

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Answer:

70%

Explanation:

it's 70% hope it helps

Answer: find the answer in the explanation as kinetic energy converts to potential energy.

Explanation:

Before the truck driver sees a dog running into the road, The mechanical energy state of the truck will be kinetic energy at maximum.

Immediately he applied the brakes, the mechanical energy of the truck will be combination of kinetic energy and potential energy.

The kinetic energy will gradually decrease as potential energy continue to increase till it reaches maximum potential energy.

The truck will come to a stop at maximum potential energy

Answer:

Oxygen in a container can be made to be at a high pressure through a process called compression. In this process, the oxygen is forced into a smaller volume, which increases the pressure. This can be done using a compressor, which is a machine that uses a piston or other device to compress the oxygen. The compressed oxygen is then stored in a container, such as a cylinder, at high pressure until it is ready to be used. It is important to handle compressed oxygen with care, as it can be dangerous if not handled properly.

47W/\(m^{2}\)  is the intensity of the light that emerges from the filter

Use Malus's law, the intensity of the light is,

        I=\(I_{0}\), cos² ∅

The intensity of the beam from the first polarizer is equal to the half of

the initial intensity.

            \(I_{1}\) = \(I_{0}\)/2

Substitute the numerical values we get

94 W/m² 2

= 47 W/m²

What is intensity ?

In physics, the power transferred per unit area is known as the intensity or flux of radiant energy, where the area is measured on a plane perpendicular to the direction of the energy's propagation. Watts per square meter (W/m2) and kilograms per square meter (kg/s3) are the units used in the SI system. With waves like acoustic waves (sound) or electromagnetic waves like light or radio waves, intensity is most usually employed to describe the average power transfer across one period of the wave. Other situations where energy is exchanged can also be described in terms of intensity. One could, for instance, figure out how much kinetic energy each drop of water from a sprinkler is carrying.

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what are the options?

Answer:

Mercury

Venus

Earth

Mars

Jupiter

Saturn

Uranus

Neptune

Answer:

Solar system planets: Order of the 8 planets:-

Answer:

c

Explanation: