a conducting sphere is charged to a value of 2x10-6 coulombs. what is the potential difference from one side of the sphere to the other side of the sphere? explain.

Answer:

Compound that consist of ions joined by electrostatic forces are called Ionic Compound....

Answer:the basic building block of chemistry

an atom

Answer:

T = 0.00025 secs

Explanation:

Given:

Frequency = 4 kHz = 4000 Hz

Required:

Time Period = ?

Formula:

T = 1/f

Solution:

T = 1/4000

T = 0.00025 secs

Answer:

0.00025 seconds

Explanation:

Time period = 1 / frequency

= 1/4000

= 0.00025 seconds

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Class 2 cables shall have a minimum voltage rating of 300 volts.

What is the voltage ?

The voltage is a measure of the difference in electric potential between two points in a circuit. It is measured in volts and is one of the basic parameters of electrical engineering. Voltage can be generated in a variety of ways, including through #SPJ1generators, batteries, and power supplies. When two points with different potentials are connected, current can flow from the higher potential point to the lower potential point. Voltage is also used to measure the potential difference between two points in a circuit, as well as to calculate the power in the circuit. In addition, voltage is used to control the flow of current in a circuit, by either increasing or decreasing the potential difference between the two points.

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The displacement  of the airplane during this time is determined as 361.84 m.

The displacement is simply the difference in the position of the two marks and is independent of the path taken when traveling between the two marks.

The displacement of the airplane is calculated as follows;

s = ut + ¹/₂at²

where;

s = 0(32.9) + ¹/₂ (4.69²) (32.9)

s = 361.84 m

Thus, the displacement  of the airplane during this time is determined as 361.84 m.

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Answer:

The ocean and atmosphere are connected. They work together to move heat and fresh water across the globe. Wind-driven and ocean-current circulations move warm water toward the poles and colder water toward the equator. ... The majority of the thermal energy at the Earth's surface is stored in the ocean.

Explanation:

The ocean and atmosphere are connected. They work together to move heat and fresh water across the globe. Wind-driven and ocean-current circulations move warm water toward the poles and colder water toward the equator. ... The majority of the thermal energy at the Earth's surface is stored in the ocean.

Answer: 35 m/s

Explanation: Gravitational acceleration only affects the vertical component of motion meaning the horizontal component never changes. This means 35 m/s is the correct answer.

A projectile is fired horizontally at an initial horizontal speed of 35 meters per second from a height of 65 meters, after falling 25 meters, the projectile's horizontal speed is 35 m/s.

The distance traveled in relation to the time it took to travel that distance is how speed is defined. Since speed simply has a direction and no magnitude, it is a scalar number.

Speed is calculated using the formula s=d/t, where s is the speed in m.s⁻¹, d is the distance in m, and t is the time in s.

Variable speed is when an object travels a different distance at the same time intervals, whereas uniform speed is when an item travels the same distance at the same time intervals.

Therefore, after falling 25 meters, the projectile's horizontal speed is 35 m/s.

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A prefix is a word part added to the beginning of a word or base word (for example, un-). If the prefix un- is added to helpful, the word is unhelpful.

A suffix is a word part added to the end of a word. For example -  again in the word unhelpful, "un" if the prefix and the suffix would be "ful".

Answer:

the time will be 1.29 sec

Answer:

B

Explanation:

Gravitational Energy is the energy of position or place. A rock resting at the top of a hill contains gravitational Potential energy. Hydropower, such as water in a reservoir behind a dam, is an example of gravitational potential energy.

Answer:

In Newton’s first law, an object at rest remains at rest until an external force isapplied. When I play soccer, the soccer ball will be at rest on the field (the initial condition) andremain in that spot on the field until I kick it (my muscles applying an external force to the ball).According to Newton’s second law, force = mass x acceleration (F=ma). When I kick the resting soccer ball, which has a given mass, it will accelerate in the direction that I kick it. From the equation, acceleration = force divided by mass. Therefore, since the mass of the soccer ball is fixed, the stronger my leg is and the more force I can apply to the ball, the faster it willaccelerate.According to Newton’s first law, an object in motion remains in motion until an external force isapplied. After I kick the soccer ball, it will continue in motion in the direction that I kicked it,but its acceleration will gradually slow down due to the external forces of friction from the airand the surface of the field. According to Newton’s third law, for every action there is an equal and opposite reaction.When I kick the soccer ball forward, if I also kick it in an upward direction, such as a thirty-degree angle from the field, it will come down at an angle when it strikes the field. When theball lands and strikes the field, there will be an equal and opposite reaction whereby instead oftraveling downward it will bounce of the surface of the field and will then be travelling upward.

Answer:

The intensity of the electric field is

\(|E|=10654.37 \:N/C\)

Explanation:

The electric field equation is given by:

\(|E|=k\frac{q}{d^{2}}\)

Where:

As we need to find the electric field at the location of the balloon, we just need the charge equal to 1.99*10⁻⁷ C.

Then, let's use the equation written above.

\(|E|=(9*10^{9})\frac{1.99*10^{-7}}{0.41^{2}}\)

\(|E|=10654.37 \:N/C\)

I hope it helps you!

Answer:

10650

Explanation:

just round that answer to four significant figures and you get that answer

The weight of a 75 kg person on Earth is 735 N, The correct option is D.

Acceleration due to gravity is the acceleration that an object experiences due to the gravitational force exerted by a massive body, such as Earth. The acceleration due to gravity on Earth is approximately 9.8 meters per second squared (m/s^2) and is denoted by the symbol "g".

The acceleration due to gravity is a vector quantity, which means that it has both magnitude and direction. The direction of the acceleration due to gravity is always downwards, towards the center of the massive body.

The acceleration due to gravity is a constant value near the surface of the Earth, but it can vary slightly depending on altitude, latitude, and the composition of the Earth's interior. For example, at higher altitudes, the acceleration due to gravity decreases slightly, while at the equator, it is slightly greater than at the poles due to Earth's rotation.

The acceleration due to gravity plays an important role in many physical phenomena, including free fall, projectile motion, and the behavior of fluids in containers.

Here in the Question,

The weight of a 75 kg person on Earth can be calculated using the formula:

weight = mass x acceleration due to gravity

Substituting the given values, we get:

weight = 75 kg x 9.8 m/s^2

weight = 735 N

Therefore, the weight of a 75 kg person on Earth is 735 N, which is option D.

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The are usually aligned with the motion of the Sun.

option C.

Many ancient ruins are aligned with astronomical phenomena and the motion of celestial bodies. This indicates that ancient cultures had a strong interest in and understanding of astronomy and its connection to the natural world.

For example, the ancient Egyptian pyramids at Giza are aligned with the cardinal directions and certain stars, such as the star Sirius. The Mayan city of Chichen Itza in Mexico has a famous pyramid known as El Castillo, which has specific alignments with the sun during the equinoxes and solstices. Stonehenge in England is another famous example, with the stones aligned to the movements of the sun, moon, and stars.

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Answer:

If both the radius and frequency are doubled, then the tension is increased 8 times.

Explanation:

The radial acceleration (\(a_{r}\)), measured in meters per square second, experimented by the moving end of the string is determined by the following kinematic formula:

\(a_{r} = 4\pi^{2}\cdot f^{2}\cdot R\) (1)

Where:

\(f\) - Frequency, measured in hertz.

\(R\) - Radius of rotation, measured in meters.

From Second Newton's Law, the centripetal acceleration is due to the existence of tension (\(T\)), measured in newtons, through the string, then we derive the following model:

\(\Sigma F = T = m\cdot a_{r}\) (2)

Where \(m\) is the mass of the object, measured in kilograms.

By applying (1) in (2), we have the following formula:

\(T = 4\pi^{2}\cdot m\cdot f^{2}\cdot R\) (3)

From where we conclude that tension is directly proportional to the radius and the square of frequency. Then, if radius and frequency are doubled, then the ratio between tensions is:

\(\frac{T_{2}}{T_{1}} = \left(\frac{f_{2}}{f_{1}} \right)^{2}\cdot \left(\frac{R_{2}}{R_{1}} \right)\) (4)

\(\frac{T_{2}}{T_{1}} = 4\cdot 2\)

\(\frac{T_{2}}{T_{1}} = 8\)

If both the radius and frequency are doubled, then the tension is increased 8 times.

If both the radius and frequency are doubled, then the tension will be increased 8 times.

From kinematic formula:

\(\bold {a_r = 4\pi r^2 \times f^2 \times R^2}\) .............................. (1)

Where:  

f - Frequency,    

R - Radius of rotation,  

From Second Newton's Law,

\(\bold {\sum F = T = m\times a_r }\) ......................... (2)

Where

m is the mass of the object,

From equation 1 and 2,

\(\bold {T = m\times 4\pi r^2 \times f^2 \times R^2}\\\) .................... (3)

From equation, tension is directly proportional to the radius and the square of frequency.

Then, if radius and frequency are doubled, then the ratio between tensions is:

\(\bold {\dfrac {T_2}{T_1} = (\dfrac {F_2}{F_1})^2 \times \dfrac {R_2}{R_1} = 4 \times 2 = 8 }\)  

Therefore, If both the radius and frequency are doubled, then the tension will be increased 8 times.

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To determine the quality of the mixture, we first need to understand what quality means in the context of a saturated liquid-vapor mixture. The quality, denoted by x, represents the fraction of the total mass that is in the vapor phase.

x = (mass of vapor)/(total mass)

In this case, the total mass of the mixture is 5 kg, and the mass of the liquid phase is 3 kg. The mass of the vapor phase can be calculated by subtracting the mass of the liquid phase from the total mass:

mass of vapor = total mass - mass of liquid = 5 kg - 3 kg = 2 kg

So the quality of the mixture is:

x = (mass of vapor)/(total mass) = 2 kg / 5 kg = 0.4

Therefore, the quality of the mixture is 0.4, which means that 40% of the total mass is in the vapor phase.

One or more pure components of differing compositions make up a combination. Heterogeneous and homogeneous mixtures are the two types of mixtures. Whereas homogeneous mixtures seem consistent throughout, heterogeneous mixtures have clearly discernible components.

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Answer:

doc

Explanation:

Answer:

Your answer would be doc

Answer:

A study looking at how alcohol consumption impacts the brain. A study to discover the components making up human DNA. A study accessing whether stress levels 

Explanation:

For example, a scientist that tries to figure out how the body makes cholesterol, or what causes a particular disease, is performing basic scienc

Answer:

D.) The positively charged alpha particles were deflected more often than expected, which indicated that the gold atoms' positive charges were not evenly distributed throughout each atom.Explanation:

Answer:

125.44 N

Explanation:

From the question given above, the following data were obtained:

Weight on earth = 784 N

Acceleration due to gravity of the moon (gₘ) = 1.6 m/s²

Weight on moon =?

Next, we shall determine the mass of the person. This can be obtained as follow:

Weight on earth (Wₑ) = 784 N

Acceleration due to gravity of earth (gₑ) = 10 m/s²

Mass (m) =?

Wₑ = m × gₑ

784 = mass × 10

Divide both side by 10

Mass = 784 / 10

Mass = 78.4 Kg

Finally, we shall determine the weight of the person on moon. This can be obtained as follow:

Mass (m) = constant = 78.4 Kg

Acceleration due to gravity of the moon (gₘ) = 1.6 m/s²

Weight on moon (Wₘ) =?

Wₘ = m × gₘ

Wₘ = 78.4 × 1.6

Wₘ = 125.44 N

Therefore, the weight of the person on moon is 125.44 N.

The answer of the following statement is (C) why joining a team is often really discouraging.

Team refers to a group of two or more people who work together to achieve a common goal. A team usually consists of individuals with different skills and abilities who collaborate to complete a task or project. Teams are important in a variety of situations, including work, school, sports, and social activities. A successful team is one in which members are committed to the same goal, trust and respect one another, and are willing to take risks and learn from mistakes. Teams are most effective when members are open to constructive criticism, provide feedback, and are willing to put in the time and effort necessary to achieve their goals.

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The transition from level 2 to level 1 in hydrogen has a rest wavelength of 121.6 nm. The speed of a star with this line at 120.6 nm wavelength is 2500 km/s forces.

Speed is the pace at which an object moves along a path in time, whereas velocity is the rate and direction of movement. In other words, velocity is a vector, whereas speed is a scalar value. People may believe that average speed and average velocity are simply different names for the same quantity, but average speed is affected by distance, whereas average velocity is affected by displacement. If an object reverses direction throughout its travel, the average speed exceeds the magnitude of the average velocity. Speed was the absolute value of velocity in one variable calculus. It is the magnitude of the velocity in vector calculus.

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Answer:

Sound waves are translated into transverse waves to know the frequency, amplitude, wavelength etc of the waves.

Explanation:

They translate the sound waves to know the depth about that specific waves and translating it to transverse waves makes it easier.

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Answer:

The magnetic force acting on the proton is 1.68 x 10^-18 N.

Explanation:

magnetic field, B = 5 T

speed , v = 2.1 m/s

charge q = 1.6 x 10^-19 C

Angle, A = 90 degree

The magnetic force on the charge particle is given by

\(F = q v B sin A\\\\F = 1.6\times 10^{-19}\times 2.1\times 5\times sin 90\\\\F = 1.68\times 10^{-18} N\)

Answer: c

Explanation:

If the net force on the bowling ball is tripled, its new acceleration is 21 m/s². The correct option is d.

The force is the action of push or pull which can move or stop the object.

The initial force is F = mass x acceleration

F = 3.17515 kg x 7 m/s²

F = 22.23 N

When the net force is tripled, the new acceleration will b e

3 x F =m x a'

3 x 22.23 = 3.17515 x a'

a' = 21.003 m/s²

Thus, the new acceleration is 21 m/s². The correct option is d.

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The persοn is mοving at a speed οf 55 miles per hοur in the Sοuth directiοn when the persοn is 50 miles West and 70 miles Sοuth οf the car, and the distance between them is increasing at a rate οf 55 miles per hοur.

Tο determine the speed at which the persοn is mοving, we can use the cοncept οf relative velοcity.

Let's cοnsider the hοrizοntal and vertical cοmpοnents separately:

Hοrizοntal Cοmpοnent:

The persοn is walking due East, which is perpendicular tο the Nοrth directiοn οf the car. Therefοre, the hοrizοntal cοmpοnent οf the persοn's velοcity dοes nοt affect the speed at which the persοn is mοving away frοm the car.

Vertical Cοmpοnent:

The persοn is 70 miles Sοuth οf the car, and the distance between them is increasing at a rate οf 55 miles per hοur. This indicates that the persοn's vertical pοsitiοn is changing with time. Since the persοn is mοving in the Sοuth directiοn and the distance is increasing, the persοn's speed can be determined by the rate οf change οf the vertical distance.

Given that the distance is increasing at a rate οf 55 miles per hοur, the persοn's speed in the Sοuth directiοn is 55 miles per hοur.

Therefοre, the persοn is mοving at a speed οf 55 miles per hοur in the Sοuth directiοn when the persοn is 50 miles West and 70 miles Sοuth οf the car, and the distance between them is increasing at a rate οf 55 miles per hοur.

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