What is the direction of the electric field at point E?A) toward GB) toward BC) toward HD) toward CE) toward F

Answer:

11.1

Explanation:

2 hours 15 mins = 2 1/4 hours

2 1/4 hours = 25 miles

1 hour = 25 ÷ 2 1/4 = 25 ÷ 9/4 = 25 x 4/9 = 11.1 miles

[A] Acidic in nature:-

[B] Basic in nature:-

Explanation:

a) The solutions can be classified as basic or acidic depending on their hydrogen ion concentration relative to pure water. If the value of pH is below seven, then the solution is acidic and if the pH is greater than seven then the solution is said to be basic.

b) Basic in nature means when a substance is soapy and bitter in taste and when a subtance changes red litmus blue. This nature of substance is basic.

The molecular motion of  the water particles as the burner supplies heat is convection current of heat.

Convection is a single- or multiphase fluid movement that develops on its own as a result of the interaction between a fluid's body forces—most frequently gravity and density—and material property heterogeneity.

It is safe to presume that convection will occur as a result of thermal expansion and buoyancy when the reason of the convection is unknown. Convection may also occur in mixes or soft materials where particles can move.

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The power output is  0.0975 MW

The efficiency of a fission power plant refers to the percentage of the energy released during nuclear fission that is converted into usable electrical energy. The efficiency of a fission power plant depends on various factors, such as the design of the reactor, the type of fuel used, and the efficiency of the power conversion system.

Efficiency = Power output/ Power input * 100/1

39 = x/0.25 * 100

39/100 * 0.25

= 0.0975 MW

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Answer:...........................

Explanation:.........................................

Answer:

np 500000 eeeeeeeeeeee

Explanation:

346 763 999 eeeeeeeeeeeee

According to the theory of relativity, the two things that are the same for all observers are (1) the laws of nature and (2) the speed of light.

According to the theory of relativity, there are two things that are the same for all observers. The first is the laws of nature, which means that the way the universe behaves is the same no matter where you are or how fast you are moving.

The second is the speed of light, which is always constant and is the same for all observers, regardless of their relative motion. This means that if you measure the speed of light from a moving train or a stationary platform, you will always get the same result. This is a fundamental principle of the theory of relativity and has been confirmed by numerous experiments.

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Answer:

Answer 4, 11k/min

Explanation:

From 0 - 1 km, it took 12 minutes

From 1 - 2 km, it took 10 minutes.

10 + 12 = 22

Divide the time by 2 km. 22/2 = 11

Yes, this is true. Circuit conductors that operate at 277 volts and 48-volt dc conductors with an insulation rating of 300 volts can occupy the same enclosure or raceway.

According to the National Electrical Code (NEC) section 300-3(c)(1), circuit conductors that operate at 277 volts (with 600-volt insulation) may occupy the same enclosure or raceway with 48-volt DC conductors that have an insulation rating of 300 volts. This is allowed as long as all conductor have insulation suitable for the highest voltage present and are properly separated. This is because the insulation rating of the 48-volt dc conductors is higher than the operating voltage of the 277-volt circuit conductors, meaning that the 48-volt dc conductors can safely handle the voltage of the 277-volt circuit conductors.

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The spring constant of the bungee cord is approximately 58.97 N/m.

We need to use the equation for the period of simple harmonic motion: T = 2π√(m/k)
where T is the period, m is the mass of the object, and k is the spring constant. We are given the mass of the bungee jumper (m = 75.8 kg) and the period of oscillation (T = 7.25 s), so we can rearrange the equation to solve for k:
k = (4π²m)/T²
Plugging in the values, we get: k = (4π² x 75.8 kg)/(7.25 s)²
k ≈ 266.3 N/m
So the spring constant of the bungee cord is approximately 266.3 N/m.

The answer to your question is that the spring constant of the bungee cord is approximately 266.3 N/m. This can be calculated using the formula k = (4π²m)/T², where m is the mass of the bungee jumper and T is the period of oscillation.
The spring constant of the bungee cord can be calculated using the formula for the period of oscillation in a mass-spring system, which is: T = 2π * sqrt(m / k)
Where T is the period of oscillation (7.25 s), m is the mass of the bungee jumper (75.8 kg), and k is the spring constant we need to find. First, square both sides of the equation: (T^2) / (4π^2) = m / k
Now, rearrange the equation to isolate k:
k = m / ((T^2) / (4π^2))
Plug in the given values for mass and period:
k = 75.8 / ((7.25^2) / (4π^2))
Solve for k:
k ≈ 58.97 N/m

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At constant temperature and pressure, ΔSuniv and ΔGsys are related through the Gibbs free energy equation, with positive ΔSuniv indicating a spontaneous process and negative ΔSuniv indicating a non-spontaneous process.

The relationship between âsuniv and âgsys at constant temperature and pressure can be explained through the second law of thermodynamics. âsuniv represents the total change in entropy of a system and its surroundings, while âgsys represents the change in entropy of the system alone. Therefore, the relationship between âsuniv and âgsys can be expressed as âsuniv = âgsys + âssurr, where âssurr represents the change in entropy of the surroundings.

The change in the total entropy of the universe (âsuniv) is equal to the change in entropy of the system (âgsys) plus the change in entropy of the surroundings (âssurr). This relationship highlights the importance of considering not only the system being studied, but also its interaction with the surrounding environment.  At constant temperature and pressure, the relationship between âsuniv and âgsys can be described as âsuniv = âgsys + âssurr, emphasizing the significance of the second law of thermodynamics in understanding the behavior of thermodynamic systems. This relationship can be further explored and applied in various fields such as chemistry, physics, and engineering.

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Answer:

\(a=\dfrac{v-u}{t}\)

Explanation:

The acceleration of an object is the rate of change of velocity. The mathematical expression for the acceleration of an object is given by :

\(a=\dfrac{v-u}{t}\)

Where

v and u are final and initial velocities

t is time

or we can write acceleration as :

\(a=\dfrac{\Delta v}{\Delta t}\)

Hence, this is the required solution.

Answer:

Chemical bonds are forces that hold atoms together to make compounds or molecules. Chemical bonds include covalent, polar covalent, and ionic bonds. Atoms with relatively similar electronegativities share electrons between them and are connected by covalent bonds.

Explanation:

A jumbo jet can fly its whole length in 20 seconds at a certain speed and has a 284-foot length. The big jet taxied completely past a 710-foot-long hangar in 70 seconds while travelling at the same speed.

In physics, you can get average speed by dividing the total distance travelled by the total time needed to travel that distance. Speed is the rate of change in an object's position, expressed in metres per second. The rate at which an object travels a distance is considered its speed. High speed describes an object that is travelling quickly.

P should represent the plane's length in feet.

20p = (710+p)/20p = 14200+20p 50p = 14200 p = 284ft

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Answer:

True

Explanation:

When no net force is applied to a moving object, it still comes to rest because of its inertia.

It is a true statement that an object wants to maintain its state of motion because it has mass, as per the first law of the motion due to the effect of inertia an object tries to maintain its state of motion whether it would be a state of motion or the state of the rest.

According to Newton's first law, until pushed to alter its condition by the intervention of an external force.

Every object will continue to be at rest or in uniform motion along a single direction.

It is true that an item wants to keep moving because it has mass. According to the first law of motion, this is because of the influence of inertia, which causes an entity to try to keep moving whether it is in movement or at standstill.

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Answer:

C. Fe: 24 electrons

Explanation:

From the analogy given, the atom with a charge of +2 is Fe having 24 electrons.

To calculate the charges on an atom;

     Number of charges = Number of protons - Number of electrons.

   O: 10 electrons: 8 protons = 8 - 10 = -2

   N: 10 electrons; 7 protons = 7 - 10 = -3

   Cl: 18 electrons; 17 protons = 17 - 18 = -1

So;

    Fe: 24 electrons and 26 protons = 26 -24  = +2

Therefore, the solution is Fe

Answer:

I think is B. sound, nuclear, electrical

but if I wrong then I am so sorry

The gravitational potential energy is  1.10× 10^4 J.

Gravitational potential energy is the energy that an object possesses due to its position in a gravitational field. It is the energy an object has as a result of its vertical position relative to a reference point in a gravitational field. The reference point is typically the surface of the Earth, and the vertical position is often measured relative to sea level.

We know that the gravitational potential energy is the energy that is expended to move the balls from one point to the other and that is  1.10× 104 J.

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There are various energy changes that occur when a guy drops a cup from a specific height. The cup's elevation above the ground gives it potential energy.

This potential energy is transformed into kinetic energy, the energy of motion, as it descends. The kinetic energy is transmitted to the cup as it falls to the ground, breaking it into pieces. This process involves the conversion of kinetic energy into thermal energy from the collision and friction of the shattered pieces with the ground as well as potential energy of the broken pieces. When a cup breaks, energy is released in the form of sound waves, which are then transmitted from the cup to the surrounding air.

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Answer:

Here's what I get  

Explanation:

When two waves meet, they interfere with each other.

1. Constructive interference

If the crests of the waves happen to line up, as in Fig. 1,  the amplitudes add up.

The crests become twice as high. The troughs also line up, so they become twice as deep.

We call this constructive interference.

2. Destructive interference

If the trough of one wave meets the crest of another, as in Fig. 2, the opposite happens.

The trough of one wave subtracts from the crest of the other, so the two waves cancel.

We call this effect destructive interference.

The frequency range of electromagnetic waves of X-ray is 3 ×10¹⁶ Hz to  3 ×10¹⁹ Hz. The wavelength range of electromagnetic waves of X-ray is  0.01 nm t0 10 nm.

The electromagnetic spectrum of electromagnetic waves can be described as the range of frequencies of electromagnetic radiation and its wavelengths and photon energies. The electromagnetic spectrum have range from one Hertz to above 10²⁵ Hertz.

The wavelength of electromagnetic radiation lies in between 380 to 760 nm and is detected by the human eye and characterized as visible light.

Electromagnetic waves of each frequency band are known by different names; starting at the low frequency (long wavelength) end of the spectrum these are radio waves, microwaves, infrared (IR), visible light, UV, X-rays, and gamma rays at the high-frequency (short wavelength) end.

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Answer:

7.5m/s

Explanation:

Law of conservation of momentum: momentum in a system before collision equals to that after collision/

5kg*3m/s=2kg*v

15kgm/s=2kg*v

v=7.5m/s

Answer:

C.45 kW

Explanation:

Given parameters:

Initial kinetic energy  = 1.6MJ

Final kinetic energy  = 2.5MJ

Time  = 20s

Unknown:

Minimum average power developed  = ?

Solution:

Power is rate at which work is done.

  Here work done;

Work done  = Final kinetic energy  - Initial kinetic energy

Work done  = 2.5MJ  - 1.6MJ  = 0.9MJ

 Power = \(\frac{work done}{time}\)   = \(\frac{0.9 x 10^{6} J}{20}\)    = 45000W

This is therefore 45kW

Answer: Fg < Fq

Explanation: just took the lab test edge 2020

The electromagnetic force is greater than the gravitational force option third Fg < Fq is correct.

It is a force imposed by one charge on another as a result of the field. The electrostatic force produced by one line charge on another line charge separated by r is determined by the charge potency of each charge as well as the separation distance between them.

Force of gravity is given by:

\(\rm F_g=\dfrac{Gm_1m_2}{r^2}\)

The electrostatic force is given by:

\(\rm F_q = \dfrac{kq_1q_2}{r^2}\)

On the atomic scale, electrons, for example, have very little mass but a very large charge. As a result, electromagnetic forces rule.

Thus, the electromagnetic force is greater than the gravitational force option third Fg < Fq is correct.

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Explanation:

Newton's first law of motion

state If a body is at rest it remain at reast and if it is in a motion it continue it's motion unless a net external force acting on it.

This law also called law of inertia

Newton's second law motion

states that acceleration to the force acting on the body and inversely proportional to the mass of the body

Newton's third law motion It is not to exert a force abody without the body exerting a forces in the opposite direction

These forces are called action and reaction force.

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THANK YOU

Answer:

A

Explanation:

neutrons have neutral charge, while electrons are outside the nucleus with a negative charge

Answer:A

Explanation:took test

Answer:

 μ= 0.0375,  kinetic

Explanation:

For this exercise we set a reference system with the x axis parallel to the chord

Y axis  

      N - W = 0

      N = W

X axis

      T - fr = 0

the expression for the friction force is

      fr = μ N

we substitute

       T - μ W = 0

       μ = T / W

we calculate

         μ = 1.5 / 40

        μ= 0.0375

coefficient of kinetic friction