Of the three websites you read that weren't trying to sell a product (Wikipedia, American
Pregnancy, and Health Prep), which site did you feel presented the most objective, unbiased
information about cord blood banking? Of all the sites you looked at, which did you feel was least
objective and most biased? Why?

Answer:

friction

air drag

every thing that opposes the motion affects kinetic energy

Explanation:

kinetic energy is a energy which is increase with increase in motion and potential energy is energy stored while the object is at rest

potential energy ∝ 1/(kinetic energy)

as kinetic energy increases potential energy decreases

a) Angular frequency changes by a factor of 2.ω2=ω1*2 = √2ω1

b) Frequency changes by a factor of 2.f2=f1*2 = 2f1

c) Period remains unchanged.T2 = T1 = T

d) Maximum speed changes by a factor of 2.vmax2=vmax1*2 = 2vmax1

e) Maximum acceleration remains unchanged.a2=a1 = a.f) Total mechanical energy changes by a factor of 4.E2 = 4E1

If the amplitude of a simple harmonic oscillator is doubled, the following quantities change by the following multiplicative factors:a) Angular frequency changes by a factor of 2. Angular frequency, also known as angular speed, is the number of radians covered per unit of time. Since the angular frequency is directly proportional to the square root of the spring constant, which in turn is proportional to the square root of the amplitude, it is proportional to the square root of the amplitude.ω∝k^1/2 ∝A^1/2

Therefore, when the amplitude is doubled, the angular frequency also doubles, sinceω2=ω1*2 = √2ω1b) Frequency changes by a factor of 2. The frequency of a simple harmonic oscillator is defined as the number of oscillations per unit of time. It is inversely proportional to the period, which in turn is directly proportional to the square root of the spring constant and the reciprocal of the square root of the mass. Hence, the frequency is directly proportional to the square root of the spring constant and the reciprocal of the square root of the amplitude.f ∝1/T ∝(k/m)^1/2 ∝(A/m)^-1/2

Therefore, when the amplitude is doubled, the frequency also doubles, sincef2=f1*2 = 2f1c) Period remains unchanged. The period of a simple harmonic oscillator, defined as the time it takes to complete one oscillation, is proportional to the inverse of the square root of the spring constant and the reciprocal of the square root of the mass.T ∝1/(k/m)^1/2 ∝1/(A/m)^1/2

Therefore, the period is unaffected by the change in amplitude. Period, therefore, remains constant.d) Maximum speed changes by a factor of 2. The maximum speed of a simple harmonic oscillator is proportional to the amplitude. When the amplitude is doubled, the maximum speed is doubled, sincevmax∝A

Therefore, when the amplitude is doubled, the maximum speed also doubles, sincevmax2=vmax1*2 = 2vmax1e) Maximum acceleration remains unchanged.

The maximum acceleration of a simple harmonic oscillator is proportional to the amplitude. Since the amplitude is doubled, the acceleration is also doubled.a∝ATherefore, the maximum acceleration remains unchanged.f) Total mechanical energy changes by a factor of 4.

The total mechanical energy of a simple harmonic oscillator is equal to the sum of its kinetic energy and potential energy. Since the amplitude is doubled, the potential energy is quadrupled, and the kinetic energy is doubled. Therefore, the total mechanical energy is increased by a factor of 4. E = 1/2mv^2 + 1/2kx^2

If the amplitude of a simple harmonic oscillator is doubled, the following quantities change by the following multiplicative factors:

Angular frequency changes by a factor of 2.ω2=ω1*2 = √2ω1

Frequency changes by a factor of 2.f2=f1*2 = 2f1

Period remains unchanged.T2 = T1 = T

Maximum speed changes by a factor of 2.vmax2=vmax1*2 = 2vmax1

Maximum acceleration remains unchanged.a2=a1 = a.f) Total mechanical energy changes by a factor of 4.E2 = 4E1

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In order to determine what we know about the speaker of a poem, we should gather details about the speaker.

By examining the specific details provided in the poem, such as the speaker's actions, thoughts, emotions, and experiences, we can gain insights into their character and perspective. These details help us form a better understanding of the speaker's identity, motivations, and the role they play in the poem. Analyzing the language, tone, and imagery used by the speaker can also provide valuable clues about their perspective and intentions. Therefore, paying attention to the details presented in the poem is essential for unraveling the speaker's qualities and perspective.

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The correct option is (b) 2,590,000.

Earlier, the students used to have four-digit id codes. But now, the id codes consist of five digits and one letter.

In this question, we need to find out how many more id codes are there now than there used to be?In four-digit id codes, the first digit could be any one of 0-9, the second digit could be any one of 0-9, the third digit could be any one of 0-9, and the fourth digit could be any one of 0-9. The total possible id codes are:$$10 \times 10 \times 10 \times 10 = 10,000$$In five-digit id codes, the first digit could be any one of 0-9, the second digit could be any one of 0-9, the third digit could be any one of 0-9, the fourth digit could be any one of 0-9, and the fifth digit could be any one of 0-9 or one of the 26 letters of the alphabet. The total possible id codes are:$$10 \times 10 \times 10 \times 10 \times 36 = 1,296,000$$So, there are $$1,296,000 - 10,000 = 1,286,000$$ more id codes now than there used to be.Option (c) 2,500,000 is not the answer as it is way bigger than the difference between the total id codes. Option (a) 130 is not the answer as it is way smaller than the difference between the total id codes. Option (d) 781, 200 is not the answer as it is a random number and doesn't represent anything.

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Answer:

c.) sewage and industrial waste

The steel tank can be able to take in a greater air pressure than the balloon.

We have to know that air is a compressible fluid. We must also know that the balloon is an elastic material. The fact is that as you add more air to the balloon the material of the elastic would continue to be stretched.

On the other hand, the steel tank is not elastic but can be able to withstand a greater pressure as you add more air to the tank. The balloon would burst but the tank would not burst.

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hope it helps

#carry on learning

If we consider the coordinates of a point, the opposite directions are termed as negative and positive. If we are considering a vector quantity the, the opposite directions to up and down is called upward and downward.

Coordinates are set of numbers used to represent the position of an object in space. A number line consists of two axis in two opposite directions called the negative and positive side.

The vertical axis is called y axis and the horizontal axis is x. The right side in a number line is positive side and the left side is negative side. If we are talking about a vector quantity thus having both direction and magnitude, the opposite directions are specified as downward or upward.

If the horizontal direction is taken, westward or eastward is used to express the opposite direction. Thus, in general the opposite directions of a point can be side as its negative and positive side.

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Answer:

A. As the blackbody radiator becomes warmer, it emits light of shorter wavelengths.

The temperature, and electromagnetic radiation has a relationship where blackbody radiator becomes warmer, it emits light of shorter wavelengths.

radiation can be regarded as the process of heat dissipation without contact with a body.

Therefore , temperature, and electromagnetic radiation of a black body works in the sense that

blackbody radiator becomes warmer during emissions.

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Answer:

acceleration due to gravity: -9.8 m/s^2

Fg=mass of object*(-9.8)

Explanation:

This is a pretty vague question, but I'll answer as best I can.

All matter has gravity. YOU have gravity, although your gravitational pull is small. So, the force of attraction between the Earth and an object on Earth is modeled as

Force of gravity=(Gravitational constant*mass of object 1*mass of object  2)/distance between objects squared

Note that distance between an object on Earth and Earth is the radius of Earth (distance to Earth's core/center of mass)

Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.

Smog development and infiltration over Los Angeles. haze and air pollution in the entire community.

Burning sulfur-containing fossil fuels, particularly coal, causes sulfurous smog, also referred to as "London smog," which is characterized by a high concentration of sulfur oxides in the atmosphere.

The two primary substances in automotive exhaust are nitrogen oxides, which are created in scorching internal combustion engines, and hydrocarbons, which are derived from gasoline.

Therefore, Both are dangerous on their own, but as they float through the air in Southern California's sunny climate, the sun bakes them into a new molecule called ozone, better known as smog.

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Answer:

The type of metal of the wire

The distance from the wire

The amount of the current

Explanation:

Answer:

I'm pretty sure it's false

Explanation:

.

Question :-

Answer :-

Explanation :-

As per the provided information in the given question, we have been given that the Current of the Device is 3.0 Ampere . The Resistance is given as 6.0 Ohm's . And, we have been asked to calculate the Potential Difference .

As we know ,

Where ,

Therefore , by Substituting the given values in the above Formula :-

\( \sf {\dag \: \: \: Potential \: Difference \: = \: Current \: \times \: Resistance} \)

\( \sf {\Longrightarrow \: \: \: \sf Potential \: Difference \: = \: 3.0 \: \times \: 6.0} \)

\( \sf {\Longrightarrow \: \: \: \sf Potential \: Difference \: = \: 3 \: \times \: 6} \)

\( \bf {\Longrightarrow \: \: \: \bf {Potential \: Difference \: = \: 18 \: }} \)

Hence :-

\( \underline {\rule {210pt}{4pt}} \)

Additional Information :-

\( \Longrightarrow \: \: \: \sf {Voltage \: = \: Current \: \times \: Resistance} \)

\(\Longrightarrow \: \: \: \sf {Current \: = \: \dfrac {Voltage}{Resistance} } \)

\(\Longrightarrow \: \: \: \sf {Resistance \: = \: \dfrac {Voltage}{Current} } \)

\( \underline {\rule {210pt}{4pt}} \)

Note :-

(1) The magnitude and direction of the average acceleration of the baseball while it is in contact with the bat is 8,000 m/s² east.

(2) The magnitude of the average force the Bat exerts on the ball while they are in contact is 1,120 N.

The given parameters:

The magnitude and direction of the average acceleration of the baseball while it is in contact with the bat is calculated as follows:

\(a = \frac{v- u}{t} \\\\a = \frac{35 - (-45)}{0.01} \\\\a = \frac{80}{0.01} \\\\a = 8,000 \ m/s^2\)

The magnitude of the average force the Bat exerts on the ball while they are in contact is calculated as follows;

\(F = ma\\\\F = 0.14 \times 8,000\\\\F = 1,120 \ N\)

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Answer:

c. Protons and electrons

Explanation:

electrons carry out negative charge

protons carry out positive charges

Answer:

asd

Explanation:

Answer:

x =

\( - 15 \times \frac{ \sqrt{3} }{2} \frac{m}{s} \)

y = 7.5m/s

Answer:

vertical columns

Explanation:

you should search up answers before putting them here. It will save time

Answer:

car b

Explanation:

b is  2/3 of the way to 30 km an hour so that means its 20

Answer: The momentum value for both big rig and sport utility vehicle are the same as 16000 pound mph

Explanation:

Scalar is a physical quantity  having only magnitude. (amount)

scalar quantity : The physical quantity which are specified with the magnitude are known as scalar quantities.

For example :

length - 5m

speed - 10 m/s , 10km/h etc

Mass - 6kg , 20g etc

energy - 30 joule

density - 56kg/m³

There is another quantity known as vector quantity.

vector quantity : The physical quantity which are specified by its magnitude and direction also.

For example, velocity, acceleration, force etc.

Scalar is a physical quantity  having only magnitude. (amount)

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The rest mass of a spacecraft is 620,000 tons. Its mass would be 715,088.8 tons if you could measure it when it was moving at half the speed of light.

The mass of a moving object is given by the relativistic mass formula:

\(m = m_0 / \sqrt{(1 - v^2/c^2)}\)

here,

m₀ is rest mass of the object,

v is velocity, and

c is speed of light.

In this case, the rest mass of the spaceship is m₀ = 620,000 tons. If it is traveling at half the speed of light, its velocity is v = 0.5c, where c is approximately 299,792,458 m/s.

Reserving the values:-

\(m = m_0 / \sqrt{(1 - v^2/c^2)}\)

= \(620,000 tons / \sqrt{(1 - (0.5c)^2/c^2)}\)

=\(620,000 tons / \sqrt{(1 - 0.25)}\)

= \(620,000 tons / \sqrt{(0.75)}\)

= 620,000 tons / 0.866

= 715,088.8 tons

Therefore, the mass of the spaceship when it is traveling at half the speed of light is approximately 715,088.8 tons. Note that the relativistic mass of an object increases as its velocity approaches the speed of light. At speeds much smaller than the speed of light, the relativistic mass is approximately equal to the rest mass.

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Answer: hope it helps you...❤❤❤❤

Explanation: If your values have dimensions like time, length, temperature, etc, then if the dimensions are not the same then the values are not the same. So a “dimensionally wrong equation” is always false and cannot represent a correct physical relation.

No, not necessarily.

For instance, Newton’s 2nd law is  F=p˙ , or the sum of the applied forces on a body is equal to its time rate of change of its momentum. This is dimensionally correct, and a correct physical relation. It’s fine.

But take a look at this (incorrect) equation for the force of gravity:

F=−G(m+M)Mm√|r|3r  

It has all the nice properties you’d expect: It’s dimensionally correct (assuming the standard traditional value for  G ), it’s attractive, it’s symmetric in the masses, it’s inverse-square, etc. But it doesn’t correspond to a real, physical force.

It’s a counter-example to the claim that a dimensionally correct equation is necessarily a correct physical relation.

A simpler counter example is  1=2 . It is stating the equality of two dimensionless numbers. It is trivially dimensionally correct. But it is false.

Answer:

they all have them it's just sometimes 1 has more then the other

Answer:

Weight is what you get when a certain amount of gravity is acting on that mass, and something, like the surface of a planet, is resisting that action. In space, when falling freely, there's nothing resisting the pull of gravity so weight disappears. Mass however stays.

hope this helps u

Explanation:

Answer:

1) Given acceleration due to gravity as 10N/kg

N/kg is the same as m/s². From W=mg

making g subject ... you have g = W/m

where m is in kg and W is in N

hence we have N/kg

So g=10ms-²

Gravitational Potential Energy=mgh

At height 4m

PE=6 x 10 x 4

=240J.

At height 6m

PE=6 x 10 x 6

=360J.

2) KE=1/2mv²

=1/2 x 6 x 5² =75J

When the speed is doubled... it becomes 2x

so V = 2x5=10ms-¹

KE=1/2 x 6 x 10² =300J.

3) KE=1/2mv²

KE is given as 100J

mass=0.5kg

Making V the subject

you have v² =2KE/m

v²=2 x 100/0.5

v²=400

taking square root

v=20ms-¹.

Have a great day✌

Answer: if the door knob is metal the static electricity will exit your body, but shock you in the process

Explanation:

Answer:

Q = 1.404 × 10^(5) KJ

Explanation:

We are given:

Mass;m = 500 g = 0.5kg

Temperature 1;T1 = 28 °C

Temperature:T2 = 150 °C

Specific heat capacity;c_p = 4183 J/Kg °C

Latent heat of vaporization;L = 2.26 × 10^(6) J/Kg.

The heat energy needed is given by;

Q = sensible heat energy + Latent heat

Formula for sensible heat is;

Sensible heat energy = mc(t2 - t1)

Formula for Latent heat is ;

Latent heat = mL

Thus:

Q = mc(t2 - t1) + mL

Q = m[c(t2 - t1) + L]

Q = 0.5((4183(159 - 28) + (2.26 × 10^(6)))

Q = 1.404 × 10^(8) J = 1.404 × 10^(5) KJ

Spontaneous fission is a nuclear equation represents a spontaneous decay.

Spontaneous fission is another type of radioactive decay. In this process, the nucleus will split into two parts and free neutrons with the release of large amount of energy.

So we can conclude that spontaneous fission is a nuclear equation represents a spontaneous decay.

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