In his experiments with garden peas, Mendel found that one physical unit is inherited from the father and one from the mother. This provided evidence for
a. Thomas Hunt Morgan’s ideas of mutation.
b. Mendel’s law of independent assortment.
c. Mendel’s concept of nondisjunction.
d. Mendel’s law of segregation.

Explanation:

inversely proportional

Answer:

directly proportional to force applied

Answer:

The answer is B. Spring tides, which are where there are very high tides and very low tides.

Explanation:

Spring tides occur when the sun and the moon are in alignment with Earth.

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Force is push or pull....

thank you

Answer:

Because the two genes depend on each other, it is possible for someone to actually be a carrier of a dominant trait like brown eyes.  And if two blue eyed parents are carriers, then they can have a brown eyed child.  Genetics is much bkj

Explanation:

So all you light eyed parents with dark eyed kids, stop asking those paternity questions (unless you have other reasons to be suspicious).  Darker eyed kids are a real possibility that can now be explained with real genes.  

Answer:

Nepal is one of the least developed countries. Solar power is well-founded than electricity. It's better to use solar power because it's a clean resource, the sun provides more energy than we will ever need.

Explanation:

To find the electric potential at the center of one of the rings, we can use the formula for the electric potential due to a charged ring: V = k * Q / r

where V is the electric potential, k is the Coulomb's constant (8.99 × 10^9 N m²/C²), Q is the charge of the ring, and r is the distance from the center of the ring. In this case, the charge of each ring is +3.0 nC (nanocoulombs) = 3.0 × 10^-9 C, and the distance from the center of the ring is half of the diameter, which is 5.0 cm = 0.05 m. Plugging in the values, we have: V = (8.99 × 10^9 N m²/C²) * (3.0 × 10^-9 C) / 0.05 m. Calculating this expression will give us the electric potential at the center of one of the rings.

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Answer:

[tex]F_{elect} = \frac{kq_1q_2}{d^2}[/tex]

Explanation:

Consider the given variables:

Felect = Electrostatic Force between charged particles

k = Coulomb's Constant

q₁ = magnitude of first charge

q₂ = magnitude of second charge

d = distance between the charges

The relationship among these variables is given by the Coulomb's Law:

[tex]F_{elect} = \frac{kq_1q_2}{d^2}[/tex]

This is the relationship that contains k, q₁, q₂, d on the right-hand side and Felect on the left-hand side.

Part A: The angular magnification when the object is at the focal point is 1.

Part B: The smallest distance the object can be from the lens is 6.00 cm.

Part A:

To find the angular magnification (M) when the object is at the focal point of a simple magnifier, we can use the formula

M = 1 + (D / f)

Where D is the least distance of distinct vision, which is typically taken as 25 cm for a normal eye, and f is the focal length of the lens.

In this case, the object is at the focal point, which means D becomes infinite since the eye is focused on the object at infinity. Plugging in the values, we have

M = 1 + (infinity / 6.00 cm) = 1 + 0 = 1

Therefore, the angular magnification when the object is at the focal point is 1.

Part B:

To determine the closest distance the object can be brought to the lens when it is viewed by the eye at infinity, we can use the formula

1 / (focal length) = 1 / (object distance) + 1 / (image distance)

Since the image distance is assumed to be at infinity, we can substitute ∞ for the image distance. Rearranging the equation, we get:

1 / (object distance) = 0 + 1 / (focal length)

1 / (object distance) = 1 / (6.00 cm)

Simplifying, we find

(object distance) = 6.00 cm

Therefore, the smallest distance the object can be from the lens is 6.00 cm.

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A source emits monochromatic light of wavelength 549 nm in air. when the light passes through a liquid, its wavelength reduces to 433 nm, the liquid's index of refraction is approximately 1.269.

The index of refraction (n) of a medium can be calculated using the formula

n = λair / λmedium

Where λair is the wavelength of light in air and λmedium is the wavelength of light in the medium.

Given:

λair = 549 nm

λmedium = 433 nm

Substituting these values into the formula, we get

n = 549 nm / 433 nm

Simplifying the calculation

n = 1.269

Therefore, the liquid's index of refraction is approximately 1.269.

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Answer:

d.) Newton's first law

Explanation:

This is also called the law of inertia, which means that an object in motion will not stop unless a force is acted upon it, and vice versa. Try this out with a piece of paper and a quarter. Pull the paper from under the quarter slightly quick, and the quarter will stay on the table. Hope i helped you.

The complete reaction of 1.21 mol of carbon (C) produces 2.42 mol of hydrogen gas (H2), which is equivalent to approximately 54.5 liters.

The balanced chemical equation for the reaction between carbon and hydrogen gas is:

[tex]C + 2H_2 -- > CH_4[/tex]

From the balanced equation, we can see that for every 1 mole of carbon (C), 2 moles of hydrogen gas (H2) are required to form 1 mole of methane (CH4). Since the reaction is complete, all the carbon will be consumed, and therefore the moles of hydrogen gas produced will be twice the moles of carbon.

Given that we have 1.21 mol of carbon, we can calculate the moles of hydrogen gas produced by multiplying the moles of carbon by 2:

2.42 mol H2 = 1.21 mol C × 2 mol H2 / 1 mol C

To convert the moles of hydrogen gas to liters, we can use the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature. Rearranging the equation to solve for V, we have:

V = (nRT) / P

Substituting the given values into the equation and solving for V, we get:

V = (2.42 mol H2 × 0.0821 L·atm/mol·K × 319 K) / 1.0 atm

V ≈ 54.5 liters

Therefore, approximately 54.5 liters of hydrogen gas are formed from the complete reaction of 1.21 mol of carbon.

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Answer:

converge

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Answer:

B. A hill 70ft tall.

Explanation:

Part A:

In the reference frame of the rocket traveling in the positive x-direction at 1.1×10⁶ m/s, the components of the electric field are Eₓ = 6.6×10⁵ V/m and Eₓ = 0 V/m.

Part B:

In the reference frame of the rocket, the components of the magnetic field are Bₓ = 0 T and Bₓ = 0 T.

In Part A, to determine the components of the electric field in the rocket's reference frame, we need to account for the relativistic effects due to its velocity. Since the magnetic field is zero (b⃗ = 0⃗), we only need to consider the transformation of the electric field.

According to the relativistic transformation of electric fields, the electric field components perpendicular to the rocket's velocity remain unchanged, while the component parallel to the velocity is transformed.

In this case, the rocket is moving along the x-direction, so the perpendicular component, Eₓ, remains the same (6.0×10⁵ V/m). The parallel component, Eₓ, however, is affected by the Lorentz transformation and is given by Eₓ' = γ(Eₓ - vB_y), where γ is the Lorentz factor (γ = 1/√(1 - v²/c²)), v is the velocity of the rocket, and B_y is the magnetic field component perpendicular to both the x-axis and the rocket's velocity. Since B_y is zero, the transformed Eₓ' becomes 0 V/m.

In Part B, since the magnetic field is zero in the laboratory frame (b⃗ = 0⃗), it remains zero in the rocket's reference frame as well. The absence of a magnetic field in the rocket's frame is a consequence of the relative motion and the lack of any magnetic field in the laboratory frame.

Therefore, the components of the magnetic field, Bₓ and Bₓ, are both zero Tesla (0 T).

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A battery has am emf of 15 V and internal resistance of 1Ω. In the terminal potential difference less than, equal to or greater than 15V if the current in the battery is (a) Less from negative to positive terminal, Greater from positive to negative terminal Equal zero current.

The terminal potential difference ([tex]V_t[/tex]) in a battery can be calculated using the equation:

[tex]V_t[/tex] = emf - (I * r)

Where emf is the electromotive force of the battery, I is the current flowing through the battery, and r is the internal resistance of the battery.

Based on the given information, the battery has an emf of 15 V and an internal resistance of 1 Ω.

(i) When the current flows from the negative to the positive terminal:

[tex]V_t[/tex] = 15 - (I * 1)

Since the internal resistance is subtracted, the terminal potential difference will be less than 15V.

(ii) When the current flows from the positive to the negative terminal:

[tex]V_t[/tex] = 15 + (I * 1)

Since the internal resistance is added, the terminal potential difference will be greater than 15V.

(iii) When there is zero current flowing:

[tex]V_t[/tex] = 15 - (0 * 1)

Since the current is zero, the terminal potential difference will be equal to the emf, which is 15V.

Therefore, the correct option is: (a) Less, Greater, Equal

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(a) The thickness of the magnesium fluoride film should be approximately 120 nm to suppress the reflection of 565 nm light.

(b) To suppress the reflection of light with a higher frequency, the coating of magnesium fluoride should be made thinner.

(a) The condition for suppressing reflection is given by the equation:

2nt = mλ

where n is the refractive index of the film, t is the thickness of the film, m is an integer representing the order of the interference, and λ is the wavelength of light.

For reflection suppression of 565 nm light, we can substitute the given values:

2(1.38)t = λ

2(1.38)t = 565 nm

t = (565 nm) / (2(1.38))

t ≈ 120 nm

Therefore, the thickness of the magnesium fluoride film should be approximately 120 nm to suppress the reflection of 565 nm light.

(b) To suppress the reflection of light with a higher frequency, the coating of magnesium fluoride should be made thinner. This is because higher frequencies correspond to shorter wavelengths. As the wavelength decreases, the required thickness of the film for interference suppression decreases. So, a thinner coating of magnesium fluoride would be needed to achieve reflection suppression for higher-frequency light.

(a) To suppress the reflection of 565 nm light, the magnesium fluoride film should have a thickness of approximately 120 nm.

(b) To suppress the reflection of light with a higher frequency, the coating of magnesium fluoride should be made thinner. This is because higher frequencies correspond to shorter wavelengths, requiring a smaller film thickness for interference suppression.

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Two identical planets orbit a star in concentric circular orbits in the star's equatorial plane. The planet that is farther from the star must have a greater period than the planet that is closer to the star. The correct answer is option(b).

The period of the planet is directly proportional to the cube of its distance from the star. As a result, when planets are equidistant from a star, their periods will be equal.As a result, the planet that is farther from the star must have a greater period than the planet that is closer to the star.

A planet's gravitational mass is not influenced by the planet's distance from the star, so alternatives c and d can be ruled out. Similarly, the planet's universal gravitational constant is not affected by the planet's distance from the star, so option e can also be ruled out. The planet's period, on the other hand, is influenced by the distance from the star and the planet's mass. As a result, the option a can be ruled out.

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The work done on the hoop to stop it is 0.344 Joules.

What is work done?

Work is defined as the transfer of energy that occurs when a force is applied to an object, causing it to move in the direction of the force. Work is the product of the force applied to an object and the displacement of the object in the direction of the force.

Given:

Mass of the hoop (M) = 100 kg

Speed of the center of mass (v) = 0.0830 m/s

Radius of the hoop (R) = ?

To find the radius (R) of the hoop, we can use the relationship between linear and angular velocity:

v = R * ω

Rearranging the equation, we get:

R = v / ω

We need to find the angular velocity (ω) of the hoop. Using the relationship between linear velocity and angular velocity, we have:

ω = v / R

Substituting the given values, we can calculate the angular velocity:

ω = 0.0830 m/s / R

Next, we can calculate the moment of inertia (I) of the hoop:

I = MR^2

Substituting the mass and radius, we get:

I = 100 kg * R^2

Now, we can calculate the initial kinetic energy (KE_initial) of the hoop:

KE_initial = (1/2) * I * ω^2

Substituting the values, we have:

KE_initial = (1/2) * (100 kg * R^2) * (0.0830 m/s / R)^2

Simplifying the equation, we get:

KE_initial = (1/2) * 100 kg * 0.0830^2 m^2/s^2

Finally, the work done on the hoop to stop it is equal to the initial kinetic energy:

Work = KE_initial

Substituting the values, we have:

Work = (1/2) * 100 kg * 0.0830^2 m^2/s^2

Calculating the value, we find:

Work ≈ 0.344 J

Therefore, the work done on the hoop to stop it is 0.344 Joules.

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plants

i hope its right and have a nice day

Answer:

number 1

Explanation:

The electric motor will develop a torque of approximately 1.27 Nm when run at 2000 rpm.

To calculate the torque developed by the electric motor, we need to use the relationship between power, torque, and rotational speed (rpm). Power is given by the formula:

Power = Torque × Angular velocity

where Angular velocity = 2π × (rpm/60) (converted from rpm to rad/s).

Given that the motor consumes 8.00 kJ of electrical energy in 1.00 min, we can convert this energy to joules:

8.00 kJ = 8.00 × 10^3 J

Since one-third of the energy goes into heat and other forms of internal energy, two-thirds of the energy is converted to motor output. Therefore, the energy converted to motor output is:

(2/3) × 8.00 × 10^3 J = 16/3 × 10^3 J

≈ 5,333 J

Now, we can calculate the power:

Power = Energy / Time

Given that the time is 1.00 min = 60 s:

Power = (5,333 J) / (60 s)

≈ 88.9 W

To find the torque, we rearrange the power formula:

Torque = Power / Angular velocity

Angular velocity = 2π × (2000 rpm / 60)

= (2π/60) × 2000 rad/s

Substituting the values into the formula:

Torque = (88.9 W) / [(2π/60) × 2000 rad/s]

Simplifying the equation:

Torque ≈ 1.27 Nm

Therefore, the electric motor will develop a torque of approximately 1.27 Nm when run at 2000 rpm.

When the electric motor is run at 2000 rpm, it will develop a torque of approximately 1.27 Nm.

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Answer:

The moon doesn’t have light of its own, the moon lights up because of the sun. So at night, as the light of the sun doesn't reach the grass directly because of the moon, it doesnt reflect any color off the grass, and so our eyes detect grass as black.

Explanation:

Sun appears white, but it is made up of the colors: red, orange, yellow, green, blue, indigo, and violet. When white light hits an object, it absorbs some colors and reflect the others. Grass appears green because it absorbs all the wavelengths except green. Green is reflected off the grass, so we see grass as green.

Answer:

0.0217 m

Explanation:

Ftom the question,

Applying Coulomb's law

F = kqq'/r²............... Equation 1

Where F = Electric Force, q and q' = First and second charge respectively, r = distance between the charges, k = coulomb's constant.

make r the subeject of the equation

r = √[(kqq')/F]............. Equation 2

Given: q = +3.6×10⁻⁸ C, q' = -3.2×10⁻⁸ C, F = -2.2×10⁻² N

Constant: k = 8.98×10⁹ Nm²/C²

Substitute these values into equation

r = √(+3.6×10⁻⁸×-3.2×10⁻⁸×8.98×10⁹/-2.2×10⁻²)

r = √(-103.4489×10⁻⁷/-2.2×10⁻²)

r = √(47.02×10⁻⁵)

r = 21.68×10⁻³

r ≈ 21.7×10⁻³ m.

r ≈ 0.0217 m

Hence the seperation between the two balloons is 0.0217 m

Answer:

C

Explanation:

When trash accumulates, astronauts manually squeeze it into trash bags, temporarily storing almost two metric tons of it for relatively short durations, and then send it away in a departing commercial supply vehicle, which either returns it to Earth or incinerates it during reentry through the atmosphere.

Weight is the force experienced by an object due to gravity and is equal to the product of its mass and gravitational acceleration.

Weight is not equal to mass multiplied by gravitational field strength. Weight is actually the force experienced by an object due to gravity, and it is given by the equation:

Weight = mass * gravitational acceleration

The gravitational acceleration is denoted by "g" and represents the acceleration due to gravity at a particular location. It is a constant value and does not depend on the mass of the object. On the surface of the Earth, the average value of gravitational acceleration is approximately 9.8 m/s^2.

So, the correct equation for weight is:

Weight = mass * gravitational acceleration

The reason weight is equal to the product of mass and gravitational acceleration is due to Newton's second law of motion. According to this law, the force acting on an object is equal to the product of its mass and acceleration. In the case of weight, the force acting on an object is the gravitational force, which is proportional to its mass (through the equation F = ma) and the gravitational acceleration.

Therefore, It's important to note that mass and gravitational field strength are not the same thing. Mass is a property of matter that measures the amount of material in an object, while gravitational field strength (or gravitational acceleration) is a measure of the intensity of the gravitational field at a specific location.

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The correct range for the temperature danger zone is 40-140°F.

The temperature danger zone refers to the range of temperatures in which bacteria can grow and multiply rapidly, posing a risk of foodborne illnesses. The correct range for the temperature danger zone is 40-140°F (4-60°C). Within this temperature range, bacteria can multiply quickly, reaching dangerous levels that can lead to food poisoning.

Temperatures below 40°F (4°C) can slow down bacterial growth, while temperatures above 140°F (60°C) can kill most bacteria. However, between 40-140°F, bacteria thrive and can double in number every 20 minutes, increasing the risk of foodborne illnesses.

Maintaining proper temperature control is crucial in food safety to prevent bacterial growth and minimize the risk of foodborne illnesses. This is particularly important for perishable foods such as meats, poultry, fish, dairy products, cooked rice, and cooked vegetables.

To ensure food safety, it is recommended to keep cold foods below 40°F (4°C) and hot foods above 140°F (60°C).

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Another bumblebee could detect the presence of the charged bumblebee from a distance of approximately 3.5 meters.

To determine the distance at which another bumblebee could detect the presence of the charged bumblebee, we can use Coulomb's law, which states that the electric force between two charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

The formula for the electric force between two charges is given by:

F = (k * q1 * q2) / r^2

where F is the electric force, k is the electrostatic constant (approximately 9 × 10^9 N·m^2/C^2), q1 and q2 are the charges, and r is the distance between the charges.

Given that the electric field detected by the bumblebee is 60 N/C, we can relate the electric field to the electric force using the equation:

E = F / q

where E is the electric field and q is the charge.

Rewriting the equation to solve for the electric force:

F = E * q

Substituting the given values:

F = (60 N/C) * (21 × 10^-12 C)

Simplifying:

F = 1.26 × 10^-9 N

Rearranging the Coulomb's law equation to solve for the distance:

r = sqrt((k * q1 * q2) / F)

Substituting the values into the equation:

r = sqrt((9 × 10^9 N·m^2/C^2 * (21 × 10^-12 C)^2) / (1.26 × 10^-9 N))

Simplifying:

r ≈ 3.5 meters

Therefore, another bumblebee could detect the presence of the charged bumblebee from a distance of approximately 3.5 meters.

Another bumblebee could detect the presence of the charged bumblebee from a distance of approximately 3.5 meters. This is based on the ability of bumblebees to sense electric fields and the known electric field strength and charge of the bumblebee in question.

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The second arrow reaches a height that is three times the height h reached by the first arrow.

The height reached by the second arrow relative to the first arrow's height can be determined by considering the conservation of mechanical energy.

When the first arrow is fired, it experiences initial potential energy due to its initial height and kinetic energy due to its initial velocity. As it reaches its maximum height h, its potential energy is at its maximum while its kinetic energy becomes zero.

The total mechanical energy (sum of potential and kinetic energy) is conserved throughout its flight.

Now, when the second arrow is fired, it is pulled back three times farther, so it has three times the initial potential energy compared to the first arrow. However, since both arrows are identical, they have the same mass and the same initial kinetic energy.

This means the second arrow has a higher total mechanical energy at the start.

When the second arrow reaches its maximum height, the total mechanical energy is again conserved, but this time its potential energy is three times higher than that of the first arrow. Therefore, the height reached by the second arrow is three times the height h of the first arrow.

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The magnetic field inside the solenoid is 0.0001454 T.

Use the formula for the magnetic field inside a solenoid:

B = μ₀ (NI) / L

Where:

B is the magnetic field,

μ₀ is the permeability of free space (4π × 10⁻⁷ T·m/A),

N is the number of turns of wire,

I is the current flowing through the wire, and

L is the length of the solenoid.

Given:

Length of the solenoid (L) = 28.0 cm = 0.28 m

Cross-sectional area of the solenoid (A) = 0.590 cm² = 0.590 × 10⁻⁴ m²

Number of turns of wire (N) = 405

Current flowing through the wire (I) = 80.0 A

Substituting the given values into the formulae:

B = (4π × 10⁻⁷ T·m/A)  (405 turns × 80.0 A) / 0.28 m

B = (4π × 10⁻⁷ T·m/A)  (32,400 turns·A) / 0.28 m

B = 4π × 10⁻⁷ × 32,400 / 0.28 T

B = 4π × 10⁻⁷ × 116,142.857 T

B = 1.454 × 10⁻⁴ T

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