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Explanation:

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The electric potential energy in a capacitor will be 5 × 10 ⁻⁹ J.

A capacitor is a device that can store electrical energy. It is a two-conductor configuration separated by an insulating medium that carries charges of equal size and opposite sign.

An electric insulator or vacuum, such as glass, paper, air, or a semiconductor termed a dielectric, can be used as the non-conductive zone.

The  electric potential energy in a capacitor is found as;

[tex]\rm E = \frac{1}{2} QV[/tex]

[tex]\rm E = \frac{1}{2}\times 1.0 \times 10^{-10} \ C \times 100 \ V \\\\ E= 5 \times 10^{-9} \ J[/tex]

Hence the electric potential energy in a capacitor will be 5 × 10 ⁻⁹ J.

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The component form of the vector - u + w is determined as  -2i + 3j.

The component vector V is calculated from the summation of vector U and vector W.

v = -u + w

Given;

v = -(2i - j) + i + 2j

v = -2i + j + 2j

v = -2i + 3j

                                     y - axis        

                                        ↑  

                                        ↑  

                                        ↑ 3j

                                        ↑

x - axis  ←    ←    ←    ←    ←

                      2i

The complete question is below:

if u = 2i - j  and w = i + 2j, find the component form of ~v = -u + w~ and sketch the specified vector operations geometrically.

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The magnetic field due to a  very long wire with current A is 6.67 x 10⁻⁷ A (Tesla).

This is the region of space where the effect of magnetic force is felt.

The magnetic field due to a current carrying conductor is calculated as;

B = μI/2πd

where;

at a distance of 0.3 m

B = μI/2π(0.3)

B = 0.53μI

B = 0.53 x (4π x 10⁻⁷)I

B = 6.67 x 10⁻⁷ A (Tesla)

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It is a true statement that cancer and diabetes are two common hereditary diseases.

The term hereditary diseases are those diseases that occur in parents and could also be found in their offspring. For many of these hereditary diseases, the mechanism of inheritance is unclear.

However, it is a true statement that cancer and diabetes are two common hereditary diseases.

Missing parts:

Cancer and diabetes are two common hereditary diseases. A. True B. False.

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Answer:

Joy has a greater acceleration.

Explanation:

Mike

v = v₀ + at

10 = 0 + 4a

a = 2.5 m/s²

Joy

v = v₀ + at

15 = 0 + 5a

a = 3 m/s²

--

Using the UAM equations, we can determine that Joy's acceleration is 3 m/s² while Mike's acceleration is only 2.5 m/s².

The first law of thermodynamics is similar to the conservation of energy because both state that this element (i.e., energy) is not created/destroyed in the universe.

The first law of thermodynamics is a popular law in physics that states change in internal energy is equal to the energy added and the work made by a closed system.

Moreover, the law of conservation of energy states that it cannot be created/destroyed in the Universe, which is deeply associated with principles of thermodynamics.

In conclusion, the first law of thermodynamics is similar to the conservation of energy because both state that this element (i.e., energy) is not created/destroyed in the universe.

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The law of the conservation of energy relates to the first law of thermodynamics by the fact that the former forms the basis for the latter.

It follows from the study of physics that the basis for the postulation of the First law of thermodynamics is on the basis of the law of conservation of energy, which states that energy can neither be created nor destroyed, but can be transferred between forms.

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Answer:

The efficiency of a simple machine is defined as the ratio of useful work done by a machine (output work) to the total work put into the machine (input work). For ideal or perfect machine, work output is equal to the work input.

Explanation:

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Answer: I believe his brother, Mike, who is 6'2, will have the longer shadow.

The main advantage of hydroelectric energy is the fact that it is a renewable energy source (Option C).

Hydroelectric energy refers to the energy from water bodies that can be used to generate electricity.

Hydroelectric energy is stored as potential energy and then converted to kinetic motion energy to be converted into electricity.

Hydroelectric energy is renewable because it is indefinitely generated by water bodies in nature.

In conclusion, the main advantage of hydroelectric energy is the fact that it is a renewable energy source (Option C).

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Answer:

Average acceleration = 12m/s^2

Explanation:

Acceleration is equal to the change in velocity over the change in time:

[tex]a=\frac{\Delta v}{\Delta t}[/tex]

Change in velocity is the final velocity minus the initial.

We are told the car goes from 0 to 26.8 m/s making 26.8 our final and 1 our initial. Therefore the change in velocity is 26.8-0 = 26.8m/s. ([tex]\Delta v[/tex])

And that this happens over 2.2s so this is our change in time: [tex]\Delta t[/tex]

Therefore our acceleration is: [tex]a = \frac{26.8}{2.2}[/tex]

Acceleration = 12.18 m/s^2

Rounded to 2 significant figures (2s.g. in 2.2s), the answer is 12m/s^2.

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The bronchus of 5cm long, slightly narrower and more horizontal than the one on the opposite side is the left main bronchus.

A bronchus is a tubular structure that links the trachea with the lungs in the respiratory airways.

The main function of the bronchus is to transport oxygen during gas exchange, which is required in cellular respiration.

In conclusion, the bronchus of 5cm long, slightly narrower and more horizontal than the one on the opposite side is the left main bronchus.

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Answer:

35

Explanation:

total magnification = eyepiece lens x objective lens

TM = 10X x 25X

TM = 250X

The elapsed time when the particle returns to the origin is determined from the ratio of initial velocity and acceleration of the particle.

The time of motion of the particle is calculated by applying Newton's second law of motion.

F = ma

F = m(v)/t

where;

a = v - u/t

v = u + at

when the particle returns to the origin, direction of u, = negative.

final velocity = 0

0 = -u + at

at = u

t = u/a

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Answer:

1.76 seconds/cycle

Explanation:

Frequency is   10 cycles / 17.6 seconds

PERIOD is  1/frequency = 17.6 seconds/10 cycles = 1.76 s/c    

          cycle is a vibration , so the unit may be  1.76 second / vibration

Since the slowest instruction in the SCA executes in 12.5 ns, the maximum system clock frequency is 80 MHz

To answer the question, we need to know what frequency is.

Frequency is the number of oscillations per second of a wave.

It is given by f = 1/T where T = period of wave

Now, given that the slowest instruction in the SCA executes in t = 12.5 ns, we need to calculate maximum system clock frequency, f.

So, f = 1/t

= 1/12.5 ns

= 1/(12.5 × 10⁻⁹ s)

= 1/12.5 × 10⁹ Hz

= 0.08 × 10⁹ Hz

= 80 × 10⁻³ × 10⁹ Hz

= 80 × 10⁶ Hz

= 80 MHz

So, the maximum system clock frequency is 80 MHz

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If you double the current through a resistor, the power dissipated by the resistor change by factor of 4.

The stream of positive charges which flow from the positive terminal to the negative terminal of the battery attached in a circuit.

Power dissipated through a resistor is related to current as

P  =I²R

When the current is doubled, the new power will be

P' = (2I)²R

P' = 4 I²R

P' = 4P

Thus, the power change by the factor of 4.

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Answer:

200 j is kinetic energy of mass

If both objects reach the same height, the ratio of their velocities Va and Vb is 3:1. The correct option is A.

When an object is thrown at an angle from the horizontal direction, the object is said to be in projectile motion. The object which follows the projectile motion.

Objects A and B have been projected from the same point at angles 30° and 60° with the ground, respectively. If both objects reach the same height.

The maximum height of the objects A and B are same, so

H = Va² sin²30 / 2g =  Vb² sin²60 / 2g

Va²/Vb² = sin²60/ sin²30

Va/Vb = 3:1

Thus, the correct option is A.

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a)  p₀ = 1.2 kg m / s

b) p_f = 1.2 kg m / s  

c)    [tex]v_{2f}[/tex] = 1.278 m/s

d)1.2482 =[tex]v_{2f}[/tex] cos θ

e)  0.2736 =[tex]v_{2f}[/tex]sin θ

g) θ = 12.36

Momentum is the product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction.

According to the question,

We define a system formed by the two balls, which are isolated and the forces during the collision are internal.

Hence , the momentum is conserved

a) The momentum of the system before the collision:

[tex]p_o = m v_1_0 + 0 p_o= 0.6 2 p_o = 1.2 kg m / s[/tex]

b) The momentum of the system after the collision, as the system is isolated, the momentum is conserved so

[tex]p_f = 1.2 kg m / s[/tex]

d. On X axis

[tex]p_ox[/tex] = 1.2 kg m / s

[tex]p_{fx}[/tex]= m v1f cos 20 + m v2f cos θ

[tex]p_o = p_f[/tex]

1.2 = 0.6 (-0.8) cos 20+ 0.6[tex]v_{2f}[/tex] cos θ

1.2482 =[tex]v_{2f}[/tex] cos θ

e. On Y axis  

[tex]p_{oy} = 0[/tex]

[tex]p_{fy}[/tex]= m[tex]v_{1f}[/tex]sin 20 + m[tex]v_{2f}[/tex]cos θ

0 = 0.6 (-0.8) sin 20 + 0.6 [tex]v_{2f}[/tex] sin θ

0.2736 =[tex]v_{2f}[/tex]sin θ

Here,

g. we write our system of equations

0.2736 =[tex]v_{2f}[/tex] sin θ

1.2482 = [tex]v_{2f}[/tex] cos θ

0.219 = tan θ (divide)

θ = tan⁻¹ 0.21919

θ = 12.36

c. Now To find the velocity

0.2736 = [tex]v_{2f}[/tex] sin θ

[tex]v_{2f}[/tex]= 0.2736 / sin 12.36

[tex]v_{2f}[/tex] = 1.278 m / s

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Answer:

2.8125 meters

Explanation:

I will assume 7.5 m/s

When the Kinetic Energy is entirely converted to Potential energy the max height will have been reached

KE = PE

1/2 m v^2 = mgh     divide by m

1/2 v^2 = gh         looking for  h     so divide both sides by

1/2 v^2 / g   = h      sub in the values   using g = 10 m/s^2

1/2 ( 7.5 )^2 / 10  = 2.8125 m

density = mass / volume

mass = 81.34 - 62

= 19.34 g

volume = 24.6 ml

density = 0.786 g/ml

Explanation:

The correct is (c). cuz, the tail of A and the tip of B will join

Answer:

decrease,inverse

Explanation:

........................

Hope this helps.

Good luck ✅.

When a substance changes from a liquid to a solid, they move more slowly and become fixed in position. Option A is correct.

When a substance changes from a liquid to a solid, its particles lose energy and move more slowly. As the temperature decreases, the particles lose kinetic energy and start to arrange themselves into a fixed, ordered pattern. This causes the substance to solidify and the particles become fixed in position.

The transition from a liquid to a solid state is called freezing or solidification. During this process, the particles lose energy and their motion becomes more restricted, causing them to move more slowly and eventually become fixed in position. Option A is correct.

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From the calculations, the mass of the pole is 82 Kg.

The term potential energy has to do with the energy that is possessed  by a body by virtue of its position.

Given that;

height = 6.15 m

PE = 4942 J

mass = ??

g = 9.8 m/s^2

Now

PE = mgh

m = PE/gh

m =  4942 J/9.8 m/s^2 * 6.15 m

m = 82 Kg

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The halo of galaxy expand from the bulge out to the edge of the disk. The correct option is b.

Universe is the whole cosmic system of matter and energy. The Earth, the Sun, the Moon, the planets, the stars along with the ,dust , gases, rocks forms the universe.

It went on expanding and stretched to grow as large as possible. It is still now expanding.

The universe consist of fully dark matter, interstellar gases or dust. The  This universe began with a big bang , also known as the massive explosion. This universe is still on it way of expanding more.

The formation of stellar halos occurs naturally in a cold dark matter. Universe has halos which occurs from the bottom-up or the large structure of galaxies is formed starting with small objects.

Thus, the correct option is b.

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