A positive charge is placed in the center of an uncharged metal spherical shell with some thickness as shown above.

1. Draw the electric field that exists inside the empty volume enclosed by the shell.
(Empty except for
the positive charge.) Explain your drawing either in words or through use of a
diagram, or both.

2. Draw the electric field that exists inside the metal shell. Explain your drawing
either in words or
through use of a diagram, or both.

3. Draw the electric field that exists outside of the metal shell. Explain your drawing
either in words or
through use of a diagram, or both.

#1

Double displacement reaction

Balanced one

#2

Decomposition reaction

Balanced one

Answer:

It orbits our sun is the correct answer

Sagittarius A* is 26,000 light-years away from earth. Hence, option (C) is correct.

Sagittarius A* (Sgr A*), a supermassive black hole at the center of the Milky Way Galaxy with a mass equal to four million Suns, is seen in the constellation of Sagittarius. It is a powerful radio source that is a part of the larger Sagittarius A complex.

One of Chandra's largest observing missions to date led to these new discoveries. In order to obtain the first-ever X-ray photos and energy fingerprints of the multi-million degree plasma swirling around Sgr A*, a black hole with around 4 million times the mass of the Sun, Chandra made observations over the course of nearly five weeks in 2012.

Sgr A* is one of the very few black holes in the cosmos where we can really observe the flow of stuff close by, and it is only 26,000 light years away from Earth.

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Multiple point perspective is a system of perspective in which: A. there are a number of vanishing points, usually created by multiple objects.

Multiple point perspective can be defined as a system of perspective in which each items (objects) has a number of interacting lines with different vanishing points.

This ultimately implies that, a multiple point perspective is a system of perspective which is created with a number of vanishing points, that are usually created by multiple objects.

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Answer:

A

Explanation:

Answer:

C. sedimentary

Explanation:

Answer:

Sedimentary

Explanation:

Igneous rock- A rock that's formed through the cooling and solidification of magma or lava.

Metamorphic rock- A rock that starts out as another rock and often has a striped appearance.

Volcanic rock- A rock that's formed from lava that erupted from a volcano.

Sedimentary is the only right answer. A Sedimentary rock is a rock thats made from the deposition of lots of pieces of eroded rock particles.

The time it will take to decay 6.25 grams is 24.4684 days.

A radioactive substance's half-life is often described as the amount of time it takes for one of its atoms to break apart or transform into another. Ernest Rutherford originally examined the theory in 1907. This is typically represented by the sign Ug or t1/2.

To make the concept clearer, let's use a radioactive element with an hour-long half-life.

Now according to the question the given values are :

T(1/2) for iodine-131 is 5.10 days,

[A]₀ for iodine-131 is 50 grams and,

[A] for iodine-131 is 6.25 grams.

T(1/2)=0.693/k

⇒8.10=0.693/k

⇒k=0.865 [tex]days^{-1}[/tex].

2.303 log [A]₀/[A]= kt

2.303 log(50.00/6.25)= 0.085×t

⇒t=1/0.085×2.303×log8

t=24.4684 days

Hence, the time it will take to decay is 24.4684 days.

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The heat equation is Q = mcT

Q is the total amount of heat transferred to or from something.

Answer:

1m/s

Explanation:

wave velocity=frequency × wave length

=0.05 × 20

=1 m/s

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:

Drinking water

Our foods

Washing clothes

The emf of the battery of the given circuit is 18 volts and the current through the 6 ohm resistor is 3A.

In a current carrying conductor, the voltage difference V is directly proportional to the current I through the conductor. The constant is called the resistance R.

i.e V=IR.

Emf of the battery is equal to e = V1 +V2

Current through 2 ohm resistor, I2 = V2 /R

I2 = 12/2

I2 =6 A

Voltage through 1 ohm resistor V1 = I1 R

V1 = 6 x 1 =6 volts

Emf of the battery E = 6+12 =18 volts.

The current  through 6 ohm resistor is

I = 18 /6 = 3 A

Thus, emf of the battery is 18 volts and the current through the 6 ohm resistor is 3A.

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Answer:

He is wrong!

Explanation:

Frequency refers to how many wave lengths pass in a second and speed is how fast the wave is traveling for example the speed of light goes really fast but has a mid-level frequency.

Hope this helps! ;-)

Answer:

a measure of the amount of information on a storage medium

Density= mass

                volume

it symbol is roh

Explanation:

To find density

we need the mass and volume we have to devide both of the

Answer:

As we know by Newton's III law that if an action force is applied on an object then the reaction force of same magnitude in opposite direction will act on the other.

So here when ball is shot using launcher then the force will be same on launcher as well as ball so we can say

now since force is of same magnitude for both both then we will have

so from above we can say that both ball and launcher will have same impulse but opposite in direction.

Now since ball will have less mass so here it will have more speed while launcher is heavy in mass so its speed is slow or very small as comapre to ball.

The final temperature of the mixture after thermal equilibrium is reached given the data is 40.4 °C

Heat loss = Heat gain

MC(T – Tₑ) = MᵥᵥCᵥᵥ(Tₑ – Tᵥᵥ)

40.1 × 0.45(652 – Tₑ) = 328 × 4.184(Tₑ – 32.4)

18.045(652 – Tₑ) = 1372.352(Tₑ – 32.5)

Clear bracket

11765.34 – 18.045Tₑ = 1372.352Tₑ – 44464.2048

Collect like terms

11765.34 + 44464.2048 = 1372.352Tₑ + 18.045Tₑ

56229.5448 = 1390.397Tₑ

Divide both side by 1390.397

Tₑ = 56229.5448 / 1390.397

Tₑ = 40.4 °C

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Answer:

A

Explanation:

208+4=212

84+2=86

The correct answer is A

Answer:

Fission is the process by which large nuclei (like Uranium) split apart releasing energy. Fusion is the joining of nuclei to make larger nuclei, with the release of energy. A ball of contracting interstellar gas becomes a star like the Sun when fusion reactions start in its center. Then, we say "a star is born."

Answer: When light element atoms are crushed under enough pressure for their nuclei to fuse, a star is formed. All stars are the consequence of a balance of forces: gravity compresses interstellar gas atoms until fusion reactions begin.

Explanation:

Answer:

A. Greenhouse gases

Explanation:

Because nuclear fission involves the modification of atoms.

Answer:

Greenhouse gases, because in nuclear fission, we are talking about modifying strictly atoms to get a reaction, therefore it would not make sense for greenhouse gases to be a reaction.

Answer:

F ΔT = Δ(M V)

Change in momentum is equal to applied force* time

Δ(M V) = 6 kg * 12 m / s = 72 kg-m / s

ΔT = 72 kg-m/s / 18 kg-m/s^2 = 6 s     after 6 sec it will tend to rebound

Explanation:

-226 of 1600

-14 of 5730

-226×16÷100= -36.16

-14×57.3÷100= -802.2

The decay constant for radium-226 is larger than the decay constant for carbon-14.

Decay constant of radioactive substance is its probability of decay per unit time.

Decay constant for radium-226 is [tex]1.4*10^{-11} /sec[/tex]  and for carbon-14 is [tex]3.8*10^{-12} /sec[/tex].

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Answer:

Warm air is less dense than cold air, and warm air holds more moisture than cold air.

Explanation:

HOPE THIS HELPS AND HAVE A NICE DAY <3

Answer:

depends on the voltage of battery

Explanation:

for example if you connect a battery of 6V,6V will be  provided

The tension on the string when the coefficient of sliding kinetic friction between the block and floor is 0.2 is calculated as 19.8N

The force acting on the block in the horizontal direction is given by:

F_net = ma

where F_net is the net force acting on the block, m is the mass of the block, and a is its acceleration.

The force of friction opposing the motion of the block is given by:

F(friction) = μKN

where μK is the coefficient of kinetic friction between the block and the floor, and N is the normal force acting on the block due to the floor.

Since the block is pulled horizontally, the normal force acting on the block is equal and opposite to the weight of the block, which is given by:

N = mg

where g is the acceleration due to gravity.

Therefore, the net force acting on the block is:

Fnet = T - F (friction) = ma

where T is the tension in the string.

Substituting the expressions for F (friction), N, and Fnet, we get:

T - μKmg = ma

Solving for T, we get:

T = ma + μKmg

Substituting the given values, we get:

T = (5.0 kg)(2 m/s^2) + (0.2)(5.0 kg)(9.8 m/s^2)

Simplifying, we get:

T ≈ 19.8 N

Therefore, the tension in the string is approximately 19.8 N.

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Answer:

Hence, the transition has to cross the grey zone from liquid to solid or solid to liquid. This grey zone transition is crucial, including the intermolecular forces acting on the molecules and each atom, making the change in state from hot to cold and cold to hot.

Explanation:

Answer:

Hence from liquid to solid or solid to liquid the transition has to cross the grey zone. This grey zone transition is is very crucial which includes the inter molecular forces acting on the molecules and each atoms which makes the change in state from hot to cold and cold to hot.

Explanation:

this is based on ideal gas law PV=nRT.

Where P is pressure, V is volume, R is gas constant and T is temperature. Hence from liquid to solid or solid to liquid the transition has to cross the grey zone.

This grey zone transition is is very crucial which includes the inter molecular forces acting on the molecules and each atoms which makes the change in state from hot to cold and cold to hot.

The best example is ice crystal formation and water formation from ice crystal .

Hence the inter molecular force of attraction happens to be involved with changes in grey zone

Answer:

the answer is 2321 watts

Explanation:

power= energy/time

power= 441/0.19=2321.05watts

The mass of the accelerated object is 9kg.

According to this law, the force is equal to the product of mass of the object and its acceleration.

F =ma

Given is the force F =45 N and the acceleration is 5 m/s², then the mass will be

m = F/a

m = 45/5

m =9kg

Thus, the mass of the object is 9kg.

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Answer:

Increase is energy transferred

Explanation:

Option B is correct