Find the y-component of this
vector:

Answer:

B

Explanation:

Examples of ink blots would be Faceless women, Rocket or Tower, Roast chicken which gives more meaning of your personality and you yourself of the picture that is shown.

Answer:

The value is  [tex]\rho = 0.0180 97 9 \ \Omega m^{-1}[/tex]

Explanation:

From the question we are told that

   The radius of the conductor is [tex]r = 1.20 \ cm = 0.012 \ m[/tex]

    The current it is carrying is  [tex]I = 3.00 \ A[/tex]

    The electric field is  [tex]E = 120 \ V/m[/tex]

Generally the resistivity of the material is mathematically represented as

        [tex]\rho = \frac{EA}{ I }[/tex]

Here A is the area of the conductor which is mathematically represented as

      [tex]A = \pi r^2[/tex]

=>  [tex]A =3.142 * (0.012)^2[/tex]

=>  [tex]A = 0.000452 \ m^2[/tex]

So

    [tex]\rho = \frac{120 * 0.000452}{ 3 }[/tex]

=> [tex]\rho = 0.0180 97 9 \ \Omega m^{-1}[/tex]

Given values,

Now,

The area of conductor,

→ [tex]A = \pi r^2[/tex]

      [tex]= 3.142\times (0.012)^2[/tex]

      [tex]= 0.000452 \ m^2[/tex]

hence,

The resistivity will be:

→ [tex]\rho = \frac{EA}{I}[/tex]

By substituting the values, we get

     [tex]= \frac{120\times 0.000452}{3}[/tex]

     [tex]= 0.0180979 \ \Omega m^{-1}[/tex]

Thus the above response is right.  

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Isothermal means constant temperature.  On a P-V diagram, this appears as a curve.

Constant volume of course appears as a vertical line.

Work done BY an ideal gas at constant pressure is W = PΔV.

Work done BY an ideal gas at constant temperature is:

W = nRT ln(Vf / Vi)

W = nRT ln(Pi / Pf)

Heat added to an ideal gas at constant volume is Q = (Cᵥ/R) VΔP.

For a monotomic gas, Cᵥ = 3R/2.

For a diatomic gas, Cᵥ = 5R/2.

Change in internal energy equals heat added to the gas minus the work done BY the gas.

ΔE = Q − W

For an ideal gas, if the temperature is constant, ΔE = 0.

At state 1, the pressure is 94.0 kPa and the volume is 4.0 L.  From ideal gas law:

PV = nRT

(94.0 kPa) (4.0 L) = nRT

nRT = 376 J

At state 2, the volume triples to 12.0 L.  The work done is:

W = nRT ln(Vf / Vi)

W = (376 J) ln(12 / 4)

W = 413 J

The process is isothermal, so ΔE = 0 J.  Therefore, Q = 413 J.

The new pressure is:

P₁ V₁ = P₂ V₂

(94.0 kPa) (4.0 L) = P₂ (12.0 L)

P₂ = 31.3 kPa

At state 3, the volume is constant at 12.0 L, and the pressure rises back to 94.0 kPa.  Since there's no change in volume, W = 0 J.  The heat added is:

Q = (Cᵥ/R) VΔP

Q = (3/2) (12.0 L) (94.0 kPa − 31.3 kPa)

Q = 1130 J

So ΔE = Q − W = 1130 J.

From ideal gas law:

PV = nRT

(94.0 kPa) (12.0 L) = nRT

nRT = 1128 J

At state 4, the volume returns to 4.0 L.  The work done is:

W = nRT ln(Vf / Vi)

W = (1128 J) ln(4 / 12)

W = -1240 J

The process is isothermal, so ΔE = 0 J.  Therefore, Q = -1240 J.

The new pressure is:

P₃ V₃ = P₄ V₄

(94.0 kPa) (12.0 L) = P₄ (3.0 L)

P₄ = 376 kPa

Finally back to state 1, the volume is constant at 4.0 L, and the pressure drops back to 94.0 kPa.  Again, since there's no change in volume, W = 0 J.  The heat added is:

Q = (Cᵥ/R) VΔP

Q = (3/2) (4.0 L) (94.0 kPa − 376 kPa)

Q = -1690 J

So ΔE = Q − W = -1690 J.

For the entire cycle:

Q = 413 J + 1130 J − 1240 J − 1690 J = -1390 J

W = 413 J + 0 J − 1240 J + 0 J = -827 J

ΔE = 0 J + 1130 J + 0 J − 1690 J = -560 J

Answer:

it's answer is 1 newton

Answer:

Vf = 86.34 [m/s]

Explanation:

To solve this problem we must use the following equation of kinematics.

[tex]v_{f} ^{2} =v_{o} ^{2} +2*g*y[/tex]

where:

Vf = final velocity [m/s]

Vo = initial velocity = 0 (falls from the rest)

g = gravity acceleration = 9.81 [m/s²]

y = distance = 380 [m]

Vf² = 0 + (2*9.81*380)

Vf = 86.34 [m/s]

Note: The pisitive sign in the equation above means that the movement goes in the same direction of the gravity acceleration, therefore the velocity is increasing when the penny falls.

Answer:

A, C, E

Explanation:

I put this and got it right.

Answer:

The gravitational potential energy of the 8.6 kg mass is 5.38x10⁸ J.

Explanation:

We can find the gravitational potential energy of the mass using the following equation:                      

[tex] E_{p} = m*g*h [/tex]

Where:

m: is the mass = 8.6 kg

g: is the gravity = 9.81 m/s^{2}  

h: is the height = Earth's radius = 6371 km

Hence, we have:

[tex]E_{p} = 8.6 kg*9.81 m/s*6371000 m = 5.38 \cdot 10^{8} J[/tex]

Therefore, the gravitational potential energy of the 8.6 kg mass is 5.38x10⁸ J.

I hope it helps you!                                                            

Answer:

0.5Amperes

Explanation:

Using the conservation of power formula

P = VI

The power we have in this coil is given as

P = 60 watts

Then we have V = 120 watts

Such that when we put these values into the formula above we will get:

60 = 120I

Then when we divide through by 120:

I = 60/120

I = 0.5 amperes

So 0.5 amperes is the rms in the primary coil.

Answer:

d, magnetic attracting metal, because the force is still going on without the magnet touching metal, and you cant see the force

Explanation:

Hope this helps <33

Answer: 6.25 m/s

explanation: remember an easir way to solve problems like this is to have a horizontal side (x) and a vertical side (y) and on each side always set up for initial speed, average speed, final speed, distance, time, and acceleration.

lmk if you need anything else or any more good tips yk

Answer:

hellllllllooooooooooooooo

Answer:

The dog ran a total distance of 45m but he is only 5m away from the starting line

Explanation: When you add 25 to 20 you get 45 for the total distance and if he ran back in the same direction then you would subtract 20 from 25 and get 5m

The correct answer B. Not affected by cognition

Explanation:

In the Social Cognitive Theory, the most important aspects are social interaction and cognition that involves mental processes such as comprehension. Indeed, this theory proposes behaviors are the result of observing other people as part of social interaction, understanding this behavior, and then imitating it.

Despite this, many psychologists do not support this theory and the main reason is that they deny the learning of behavior is related to cognition or complex mental processes. Instead, some believe behavior is the result of certain impulses or that is regulated by conditioning such as behaving correctly to avoid negative consequences.

Answer:

B. is correct on Edge 2020

Explanation:

Peace and Love

Answer:

B. 100%

Explanation:

When the amplitude of a vibrating membrane increases the loudness of sound increases. Higher amplitude waves will mean more energy and greater intensity which causes the sound to be louder.

Loudness is proportional to the square of the amplitude. This will simply mean when the amplitude of a wave is doubled, the sound will be 4 times louder.

In this case, 50% increase in the amplitude of a vibrating membrane will cause a 100% increase in the loudness of sound.

its the 3rd one kinetic energy increases as speed increases

Answer:A

Explanation:

Answer:

D. Mixtures are classified based on the distribution of particles in them.

Explanation:

A is wrong because mixtures are not made of elements that are bonded together chemically.

B is wrong because elements and compounds are types of pure substances.

C is wrong because pure substances are not made up of mixtures.

Please give brainliest

Answer:

When the cold weather fills hard surfaces with water, it causes it to freeze and expand, causing cracks in the surface.

Answer:the ballon and the comb have the same electrical charge

Explanation:because I got the answer right

The comb is able to repel the balloon is that the balloon and the comb possess the same electrical charge. Therefore, option (B) is correct.

Electric charge is the physical property of matter that offers it to experience a force when keep in an electric or magnetic field. An electric charge is related to an electric field, and the moving electric charge produced a magnetic field.

The interaction of the charges creates an electromagnetic force and the combination of an electric field and magnetic field is called an electromagnetic field.

When the students rub a balloon and comb against his hair several times static charges are built up on the balloon and the comb.  When the students place the comb near the balloon and the comb repels the balloon means that both the comb and the balloon possess the same type of electrical charges.

Therefore, the balloon and the comb acquired the same electrical charge.

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Explanation:

so sorry

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don't know but please mark me as brainliest please

Answer:

The extension of the wire is 0.362 mm.

Explanation:

Given;

mass of the object, m = 4.0 kg

length of the aluminum wire, L = 2.0 m

diameter of the wire, d = 2.0 mm

radius of the wire, r = d/2 = 1.0 mm = 0.001 m

The area of the wire is given by;

A = πr²

A = π(0.001)² = 3.142 x 10⁻⁶ m²

The downward force of the object on the wire is given by;

F = mg

F = 4 x 9.8 = 39.2 N

The Young's modulus of aluminum is given by;

[tex]Y = \frac{stress}{strain}\\\\Y = \frac{F/A}{e/L}\\\\Y = \frac{FL}{Ae} \\\\e = \frac{FL}{AY}[/tex]

Where;

Young's modulus of elasticity of aluminum = 69 x 10⁹ N/m²

[tex]e = \frac{FL}{AY} \\\\e = \frac{(39.2)(2)}{(3.142*10^{-6})(69*10^9)} \\\\e = 0.000362 \ m\\\\e = 0.362 \ mm[/tex]

Therefore, the extension of the wire is 0.362 mm.

Answer:

None, both objects will hit ground at the same time.

Explanation:

        [tex]\Delta h = \frac{1}{2}*g*t^{2} (1)[/tex]

Answer:

0.817g

Explanation:

Zn2+ + 2e -----> An

Amount of electricity used

Q = It

= 1.6A x 25 x 60 seconds

= 2400 coulomb's

Number of moles of electrons = Q/f

F = 96500 coulomb's

= 2400/96500

= 0.025mol

From the equation above,

We see that the number of Zn moles firmed is equal to half the number of electrons used.

Molecular weight of Zn = 65.38

0.025x65.38/2

= 0.817 grams of zinc

Thank you!

Answer:

Is that the question?

Explanation:

Answer:

1.32142x10^-3 Gy

Explanation:

Mass m = 63kg

Time t = 5.0s

Beta energy = 1.5x19^-13J

1 Ci = 3.7x10¹⁰

3.0Ci = 3x3.7x10¹⁰

= 11.1x10¹⁰decay/s

We have a total of 11.1x10¹⁰ beta particles produced per second

The question says there is 100% absorption

Et = (11.1x10¹⁰)x5x1.5x10^-13

= 0.08325

The radiation dose = Et/m

= 0.08325/63 kg

= 0.001321428J/kg

= 0.001321428 grays

Or 1.32142x10^-3 Gy

The radiation dose of the person is 1.31 x 10⁻⁴ J/kg.

The radiation does is the ratio of the total dose to the mass of the person exposed to the radiation.

3 Ci beta radiation = 3 x (3.7x10¹⁰) = 11.1 x 10¹⁰decay/s

Et = (11.1x10¹⁰) x 5 x 1.5 x 10⁻¹³

Et = 8.25 x 10⁻³ J

Radiation dose of the person is calculated as follows;

Rd = Et/m

Rd = (8.25 x 10⁻³ J) / 63

Rd = 1.31 x 10⁻⁴ J/kg

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Answer:

a) E = 4.5*10⁴ V/m

b) C= 17.7 nF

c) Q = 159. 3 nC  

Explanation:

a)

       [tex]E = \frac{V}{d} = \frac{9.0V}{2*10-4m} =4.5 * 10e4 V/m (1)[/tex]

b)

       [tex]Q = \sigma* A (2)[/tex]

        From (1), we know that V = E*d, but at the same time, applying Gauss'

        Law at a closed surface half within the plate, half outside it , it can be

        showed than E= σ/ε₀, so finally we get:

       [tex]C = \frac{Q}{V} =\frac{\sigma*A}{E*d} = \frac{\sigma*A}{\frac{\sigma}{\epsilon_{o} } d} =\frac{\epsilon_{0}*A}{d} = \frac{8.85e-12F/m*0.4m2}{2e-4m} = 17.7 nF (3)[/tex]

c)    

       [tex]Q = C* V = 17.7 nF * 9.0 V = 159.3 nC (4)[/tex]

a) Electric field between the plates, E = 4.5*10⁴ V/m

b) Capacitance of the capacitor, C= 17.7 nF

c) Magnitude of the charge, Q = 159. 3 nC  

It is the electrostatic force per unit charge, and since the potential difference between plates is just the work done by the field, divided by the charge, assuming a uniform electric field, if V is the potential difference between plates, and d is the separation between plates, the electric field can be expressed as follows:

[tex]E=\frac{V}{d} \\\\E=\frac{90V}{2*10^{-4}m} \\\\E=4.5*10e4V/m[/tex]

For a parallel-plate capacitor, It is the quotient between the charge on one of the plates and the potential difference between them, and assuming a uniform surface charge density σ, we get:

[tex]Q=\sigma*A[/tex]

On comparing equation 1 and 2:

[tex]C=\frac{Q}{V}\\\\C=\frac{\sigma*A}{E*d}\\\\\\C=\frac{\sigma*A}{\frac{\sigma}{E_0}*d}\\\\C=\frac{8.85e^{-12}F/m-0.4m^2}{2e-4m}\\\\C=17.7nF\\\\[/tex]

From equation 3:

[tex]Q=C*V\\\\Q=17.7*9.0\\\\Q=159.3nC\\[/tex]

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Answer:

(D) the sphere

Explanation:

The bodies given are Disk and Solid sphere (uniform sphere)

Moment of inertia of the bodies are

I(disk) = [tex]\frac{MR^2}{2}[/tex]

I(sphere) = [tex]\frac{2MR^2}{5}[/tex]

Since the moment of inertia of sphere is less than that of disk, therefore sphere will reach the bottom first.

Answer: Hale-Bopp was an unusually bright comet that flew by Earth, reaching its closest approach to the planet in 1997.

Explanation:

Hale-Bopp is the answer

Answer: This is Comet Hale--Bopp

Explanation:

Answer:

Both daughter and parent atoms

Explanation:

Daughter atoms are an offshoot of daughter elements, and are formed when a radioactive element undergoes radioactive decay. The new element is the daughter element, while the initial, the former element is the parent element.

Same analogy goes for daughter atoms and parent atoms..

Radiometric dating is also called radioactive dating or even radioisotope dating. It is a technique that is used to date materials like carbon or even rocks, that has trace radioactive impurities selectively incorporated into it when they were formed.

Radiometric dating is defined as the technique, which is used to date rocks, carbon, or radioactive impurities. The rocks that consist of parent and daughter atoms are used for accurate radiometric dating.

The correct statement for the blank is:

Accurate radiometric dating typically requires that rock contains a measurable amount of parent and daughter atoms.

It can be defined as:

1. Daughter atoms are formed when the radioactive element undergoes radioactive decay. The element formed is the daughter element from which it is formed is known as the parent element.

2. A radioactive isotope is also called radioactive dating, which is used to date rocks and radioactive elements. These elements are incorporated into the elements when they are formed.

Thus, the correct answer is parent and daughter atoms.

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