as a result of rotation about six of its bonds, dna can exist in a variety of forms. determine whether each of the images and properties represents or describes the a form, b form, or z form of dna.

Answer:

1 Inch and 20 F

Explanation:

Answer:

The star's luminosity rises above its previous level. Because it is so cool, the surface will be red, and it will be much farther away from the center than it was during the earlier stages of star evolution. Despite its lower surface temperature, the red giant has a large surface area, which makes it very luminous.

If the disk starts from rest and accelerates uniformly at a rate of 3 radians/s² for 4 s, its angular displacement during this time is 24 radians.

Circular motion is the motion of an object in a circular path around a center point. Angular speed is the angular frequency of an object and its axis of rotation.

The equation in Uniform Circular Motion is:

θ = ω₀ t + 1/2 α t²

Information:

ω₀: Initial angular velocity (rad/s)

α: angular acceleration (rad/s²)

θ: angular position (rad)

t: time (s)

The disk starts from rest, so

θ = ω₀ t + 1/2 α t²

θ = 0(4) + ½ (3)(4)²

θ = 0 + 24

θ = 24 radians

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From the information provided, the velocity after 2 seconds is  11 m/s.

From the equations of motion;

v = u + at

Where;

v = final velocity

a = acceleration

t = time taken

The initial velocity of the bike was 7 m/s and its acceleration is  2 m/s2. This change occurred within a time of 2 seconds.

Hence;

v = 7 + 2(2)

v = 11 m/s

The velocity after 2 seconds is  11 m/s.

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The electric field strength at a distance of 1.20 m on the x-axis is -1.5 × 10⁴ N/C.

To find the electric field strength at a distance 1.20 m on the x-axis, we can use Coulomb's law:

\($$F=k\frac{q_1q_2}{r^2}$$\)

where F is the force between two charges, q1 and q2 are the magnitudes of the charges, r is the distance between the charges, and k is the Coulomb constant.For a single point charge q located at the origin of the x-axis, the electric field E at a distance r is given by:

\($$E=\frac{kq}{r^2}$$\)  where k is the Coulomb constant.

So, let's calculate the electric field due to each charge separately and then add them up:

For the +2.0 C charge at x = 0, the electric field at a distance of 1.20 m is:\($$E_1=\frac{kq_1}{r^2}=\frac{(9\times10^9)(2.0)}{(1.2)^2}N/C$$\)

For the -3.0 C charge at x = 0.40 m, the electric field at a distance of 1.20 m is:

\($$E_2=\frac{kq_2}{r^2}\)

\(=\frac{(9\times10^9)(-3.0)}{(1.20-0.40)^2}N/C$$\)

The negative sign indicates that the direction of the electric field is opposite to that of the positive charge at x = 0.

To find the net electric field, we add the two electric fields\(:$$E_{net}=E_1+E_2$$\)

Substituting the values of E1 and E2:

\($$E_{net}=\frac{(9\times10^9)(2.0)}{(1.2)^2}-\frac{(9\times10^9)(3.0)}{(0.8)^2}N/C$$E\)

net comes out to be -1.5×10⁴ N/C.

Therefore, the electric field strength at a distance of 1.20 m on the x-axis is -1.5 × 10⁴ N/C.

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Answer:

1)  10 kg-m/s

2)  2 kg

3)  20 m/s

Explanation:

The momentum of an object can be calculated using the equation:

\(\large\boxed{p=mv}\)

where:

\(\hrulefill\)

For this question we need to find the momentum of a bowling ball whose mass is 4.0 kg is rolling at a rate of 2.5 m/s.

Given values:

Substitute the given values into the momentum formula and solve for p:

\(p=4.0\;\text{kg} \cdot 2.5\;\text{m/s}\)

\(p=10\;\text{kg m/s}\)

Therefore, the momentum of the bowling ball is 10 kg-m/s.

\(\hrulefill\)

For this question we need to find the mass of a skateboard rolling at a velocity of 3.0 m/s with a momentum of 6.0 kg-m/s.

Given values:

As we want to find mass, rearrange the momentum formula to isolate m:

\(\large\boxed{m=\dfrac{p}{v}}\)

Substitute the given values into the formula and solve for m:

\(m=\dfrac{6.0\; \text{kg m/s}}{3.0\; \text{m/s}}\)

\(m=2\;\text{kg}\)

Therefore, the mass of the skateboard is 2 kg.

\(\hrulefill\)

For this question we need to find the velocity of a baseball with a mass of 0.5 kg and a momentum of 10 kg-m/s.

Given values:

As we want to find velocity, rearrange the momentum formula to isolate v:

\(\large\boxed{v=\dfrac{p}{m}}\)

Substitute the given values into the formula and solve for v:

\(v=\dfrac{10\; \text{kg m/s}}{0.5\; \text{kg}}\)

\(v=20\;\text{m/s}\)

Therefore, the velocity of the baseball is 20 m/s.

Wave Speed (M/s) = Frequency (Hz) x Wavelength (M)

Wave Speed = 3500Hz x 2.8M = 9800M/s

Answer = Top one

Answer:

A

Explanation:

3500Hz*2.5m=9800m/s

Give Brillienst please!!!!

The definition of velocity is vector quantity that represents the rate of change of an object's position with respect to time. The definition of acceleration another vector quantity that represents the rate of change of an object's velocity with respect to time

Velocity has both magnitude (speed) and direction, making it different from speed, which is a scalar quantity with only magnitude. In simple terms, velocity indicates how fast an object is moving and in which direction. The formula for velocity is v = Δx/Δt, where v is velocity, Δx is the change in position, and Δt is the change in time.

Acceleration indicates how quickly an object is speeding up or slowing down, as well as changing its direction. The formula for acceleration is a = Δv/Δt, where a is acceleration, Δv is the change in velocity, and Δt is the change in time. Both velocity and acceleration are crucial concepts in physics, particularly in the study of motion. Understanding these terms helps us analyze and predict the behavior of moving objects in various situations, from everyday experiences to complex scientific phenomena.

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Answer:

what???

Explanation:

Answer:

  D. 3.0 × 10^-6 m

Explanation:

Wavelength is found by dividing the speed of light by the frequency:

  λ = c/f = (3·10^8 m/s)/(1.0·10^14 Hz) = 3.0·10^-6 m

Answer:

Vaccines contain weakened or inactive parts of a particular organism (antigen) that triggers an immune response within the body. Newer vaccines contain the blueprint for producing antigens rather than the antigen itself.

Answer: They give  you a portion of the thing its fighting so it gets your cells use to it so they can fight it off easily

Explanation:

Initial velocity,u = 0 m/s

Final velocity,v = 24 m/s

Distance covered,s = 56 m

Calculate the acceleration ( a ) .

According to the third equation of motion,

\( \bf \: {v}^{2} = {u}^{2} + 2as\)

★ Substituting the values in the third equation of motion:

\( \sf \implies \: {(24)}^{2} = {(0)}^{2} + 2 \times a \times 56\)

\( \sf \implies \: 576 = 112a\)

\( \sf \implies \: a = \dfrac{576}{112} \)

\( \sf\implies \: a = 5.14 \: m {s}^{ - 2} \)

Answer:

Natural selection can cause microevolution (change in allele frequencies), with fitness-increasing alleles becoming more common in the population. Fitness is a measure of reproductive success (how many offspring an organism leaves in the next generation, relative to others in the group).

A 200 watt to decibels is option (b) 53 dBm.

To convert 200 watts to decibels referenced to 1 milliwatt, we can use the formula:

dB = 10 * log10(P/Pref)

where P is the power being measured (in this case, 200 watts) and Pref is the reference power (1 milliwatt).

First, we need to convert 200 watts to milliwatts. Since 1 watt is equal to 1000 milliwatts, we have:

200 watts = 200 * 1000 = 200,000 milliwatts.

Now we can calculate the decibel value:

dB = 10 * log10(200,000/1)

dB = 10 * log10(200,000)

Using a calculator, the result is approximately 53 dB.

The decibel (dB) is a logarithmic unit used to express the ratio of two power levels. In this case, we are comparing the power of 200 watts to the reference power of 1 milliwatt. By converting the power to decibels, we can more easily express and compare power levels on a logarithmic scale. In telecommunications and electronics, dBm is often used, which is a decibel measurement referenced to 1 milliwatt. In this context, 53 dBm indicates that the power of 200 watts is 53 decibels higher than 1 milliwatt.

Therefore, the answer is option (b) 53 dBm.

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A decimal point is a point or a dot that is used to distinguish between a whole number and its fractional component.

It also goes by the name Decimal Mark. The decimal point's symbol is (.). Decimals are also used frequently in everyday life. The symbol of decimal point is (.).

The place value of a decimal number is recognised according to the position of the dot or decimal point. The first digit to the right of the decimal point indicates the number of tenths and the second digit to the right indicates the number of hundreths. For example, 0.8 can be written as 8/10 as a fraction.

Note that an overview was given as the information is incomplete.

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El término deporte engloba diversas formas de ejercicio, juegos y competiciones, que en su mayoría se relacionan con la actividad física de las personas. Así, los deportes más populares a nivel mundial son el fútbol, el baloncesto, el tenis, el rugby, etc.

Todos estos deportes, sin importar sus características, requieren de sus deportistas una serie de normas de conducta que hacen que los mismos sean cada vez mejores en sus respectivos deportes. Estas son, fundamentalmente, un buen entrenamiento, una correcta alimentación, un suficiente descanso y un seguimiento de las reglas del deporte.

La falta de alguna de estas 4 normas de conducta hace que el atleta no maximice su rendimiento, influyendo en forma negativa en sus resultados competitivos.

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Answer:

we have to use the formula f=ma to find out the unknown force

Explanation:

mass = 9kg

accelration=3m/s^2

force = mass * acceleration

force = 9 * 3

force = 27 N(newton)

Answer:

Explanation:

The frictional force is

=

28.71

N

Explanation:

Let

F

r

=

frictional force

and

F

=

the force applied

The net force acting on the object is

(

F

−

F

r

)

By Newton's second Law

(

F

−

F

r

)

=

m

a

where,

a

=

the acceleration

and

m

=

mass of the cart

So,

F

−

F

r

=

m

a

F

r

=

F

−

m

a

=

34.5

−

4.52

⋅

1.28

=

28.71

N

The mass of the suitcase is approximately 142.86 kg.

The mass of the suitcase, we can use Newton's second law of motion, which states that the force acting on an object is equal to the product of its mass and acceleration.

The formula is given as:

Force = mass * acceleration

Given that the force applied is 110 N and the acceleration is 0.770 m/s^2, we can rearrange the equation to solve for mass:

mass = Force / acceleration

Substituting the given values, we have:

mass = 110 N / 0.770 m/s^2

mass ≈ 142.86 kg

Therefore, the mass of the suitcase is approximately 142.86 kg.

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The units of Planck's constant are Joule seconds (J*s).

Planck's constant is a fundamental physical constant that plays a crucial role in quantum mechanics. It relates the energy of a photon to its frequency through the equation E = hf, where E is the energy, h is Planck's constant, and f is the frequency. The unit of energy is Joules (J), and the unit of frequency is Hertz (Hz), so the unit of Planck's constant is J*s.

The significance of Planck's constant lies in its ability to bridge the gap between classical physics and quantum mechanics. It helps explain phenomena such as wave-particle duality, where particles can behave as waves and vice versa. Additionally, it is used in calculations related to atomic and subatomic particles, including the energy levels of electrons in atoms and the behavior of photons in lasers.

Overall, the units of Planck's constant demonstrate its importance as a fundamental constant in the field of quantum mechanics and its role in bridging the gap between classical physics and the mysterious realm of the subatomic world.

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Answer:

spring force = -K × x , where X is elongation or compression in the spring. ( -) sigh shows that the spring force is opposite to the applied force to cause extension.

Potential energy = work done by spring force = integration of Force.

integrate the force (-K × x) over distance 0 to x .

U = 1/2 K × X^2 ( for elongation)

U = -1/2 × K × X^2 ( for compression)

if it is horizontal line, that means position is same but time is increasing.

velocity=0 . particle is not even moving

Out of the given statements, the statement which is not a similarity between these two laws is the force is always one of attraction between the two particles. Correct option is C.

Both Coulomb's law and Newton's law of gravitation are inverse square laws.

Coulomb's law, mathematically, is given as, F = k q₁ q₂/r²

where,

F is the electric force

k is the coulomb's constant

q₁, q₂ are the charges

r is the distance

Newton's law of gravitation is mathematically given as, F = G m₁ m₂/r²

where,

F is the gravitational force

G is the gravitational constant

The masses of two objects are m₁, m₂.

r is the distance

The square of the distance between two particles and the force are inversely related in both equations.

The force in both laws diminishes as the distance between the two particles grows.

The force is inversely proportional to the product of an intrinsic characteristic of the two particles in both laws.

A proportionality constant can be found in both equations.

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Because the ropes are the same. Therefore, the frequency of both ropes is the same. Consequently, a wave in the second rope has a frequency of 1.5 hertz.

Frequency is the quantity of waves that pass a fixed point in a unit of time as well as the quantity of cycles or vibrations that a body in periodic motion experiences in a given period of time.

Frequency refers to the quantity of waves passing a fixed location in a predetermined period of time. As a result, the frequency is 2 per second if a wave passes through in 1/2 of a second. If it takes one hundredth of an hour, the frequency is one hundred per hour.

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The distance the wave traveled between the two-point is the path difference. The path difference will be 2200 nm and 3 orders of bright lines do this equal red light with a wavelength of 650 nm.

A diffraction grating is a type of optical instrument obtained with a continuous pattern. The pattern of the diffracted light by a grating depends on the structure and number of elements present.

The equation of diffraction grating is given as

\(\rm n\lambda=dsin\phi\\\\\rm n\lambda=0.50\times10^{-3}\times sin(0.25) \\\\ n\rm \lambda=2.18\times10^{-6} \;m \\\\\rm n\lambda=2200\;nm\)

Hence the path difference will be 2200 nm.

\(\rm n\lambda=2200\;nm \\\\\rm n\times650=2200 \\\\\rm n=3.38\)

n= 3

Hence 3 orders of bright lines do this equal red light with a wavelength of 650 nm.

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According to the law of conservation of momentum, the total momentum of a system remains constant if no external forces act on it the total momentum of the system before and after the collision will be conserved. The correct option d.

The law of conservation of momentum states that in a closed system, the total momentum before a collision is equal to the total momentum after the collision, provided there are no external forces acting on the system. The law applies to both linear and angular momentum.

In the given scenario, the total momentum of the system before the collision is the sum of the momenta of the two disks. After the collision, the total momentum of the system should still be the same as before the collision if no external forces are present.

The individual velocities and directions of the disks after the collision may change, and they may continue to move at different velocities or even come to rest. The law of conservation of momentum does not dictate the velocities or outcomes of the individual objects involved in the collision. It only states that the total momentum of the system remains constant.

Therefore, option d) The total momentum of the system before and after the collision will be conserved is the correct statement according to the law of conservation of momentum.

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Answer:

First, let's think in the vertical problem:

The acceleration will be the gravitational acceleration:

g = 9.8 m/s^2

a = -9.8 m/s^2

For the velocity, we integrate over time:

v(t) = (-9.8 m/s^2)*t + v0

Where v0 is the initial velocity, in this case  v0 = 30m/s.

v(t) =  (-9.8 m/s^2)*t + 30m/s

Now, for the position we integrate again over time, and get:

P(t) = (1/2)*(-9.8 m/s^2)*t^2 + 30m/s*t + p0

Where p0 is the initial position, as the ball is launched from the ground, we can use p0 = 0m

p(t) = (-4.9m/s^2)*t^2 + 30m/s*t

Now, the maximum vertical height is reached when:

v(t) = 0m/s = -9.8m/s^2*t + 30m/s

t = 30m/s/9.8m/s^2 = 3.06s

Now we can evaluate the vertical position in t = 3.06s

p(3.06s) = (-4.9m/s^2)*(3.06)^2 + 30m/s*3.06 = 62m

So, rounding down, the correct option is: C. 60 m