Connor is the paper
football champion of
all of Black Middle
School. If he thumps a
paper football with an
initial velocity of 3.0
meters per second at
an angle of 30
degrees, how far will
the football travel?

The frequency of the G allele in the population is 0.4, the correct option is B. 0.4.

The frequency of beetles with glabrous elytra in a population of ground beetles is 0.36. The frequency of the G allele is to be calculated, assuming that the population is in Hardy-Weinberg equilibrium.

What is Hardy-Weinberg equilibrium? The Hardy-Weinberg equilibrium is a model that describes the genetic makeup of a non-evolving population.

This model postulates that the genetic variation in a population remains constant from generation to generation in the absence of disturbing influences such as mutation, migration, or natural selection.

According to the Hardy-Weinberg equilibrium, the frequency of alleles and genotypes remains constant if certain conditions are met.

The Hardy-Weinberg equilibrium is represented by the following equation:p2 + 2pq + q2 = 1 Where:p2 = frequency of homozygous individuals (GG)2pq = frequency of heterozygous individuals (Gg)q2 = frequency of homozygous recessive individuals (gg)p + q = 1Now let's move on to the calculation of the frequency of the G allele.

The frequency of individuals with the gg genotype can be obtained from the following equation:q2 = 0.36q2 = 0.36^(1/2)q = 0.6

The sum of the frequency of all genotypes must be equal to 1, which can be used to calculate the frequency of the G allele:p + q = 1p = 1 - qp = 1 - 0.6p = 0.4The frequency of the G allele in the population is 0.4.Therefore, the correct option is B. 0.4.

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Answer:

89.90Kg

Explanation:

From the equation; W= mg,

w =882N

m=?

g = 9.81 m/s(acceleration due to gravity),

882N = m(9.81)

m =882/9.81

= 89.90kg

Answer: \(36.22\ V\)

Explanation:

Given

Energy in a capacitor \(E=7.77\times 10^{-7}\ J\)

Charge \(Q=4.29\times 10^{-8}\ C\)

Energy of a capacitor is given by

\(E=\dfrac{1}{2}CV^2=\dfrac{1}{2}QV\quad [\text{Q=CV}]\)

Insert the values

\(E=\dfrac{1}{2}QV\\\\\Rightarrow 7.77\times 10^{-7}=\dfrac{1}{2}\times 4.29\times 10^{-8}\times V\\\\\Rightarrow V=3.622\times 10\\\\\Rightarrow V=36.22\ V\)

Thus, the voltage around the capacitor is \(36.22\ V\)

The magnetic force on a stationary proton in a magnetic field of 0.50 tesla is 0.

This can be calculated using the equation F = qvB, where F is the magnetic force, q is the charge of the proton, v is the velocity of the proton, and B is the magnetic field strength.

Since the proton is stationary, its velocity (v) is 0. Therefore, the equation becomes F = q(0)B, which simplifies to F = 0.
So, the magnetic force on a stationary proton in a magnetic field of 0.50 tesla is 0.

In general, the magnetic force on a charged particle is only present when the particle is moving in a magnetic field. If the particle is stationary, there is no magnetic force acting on it.

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When an electron traveling north reaches an area with a consistent electric field facing north, the electron's speed and direction of motion are altered.

A negatively charged subatomic particle known as an electron can either be free or attached to an atom. In the electron cloud, which is located outside of the atomic nucleus, exist electrons.

An electric field that is oriented northward will exert a force on an electron moving northward through it. The electron will accelerate in the field's direction as a result of this force. The strength of the electric field and the charge of the electron will determine how much the acceleration is.

The electron will continue to receive a constant force and move in a straight line with a constant acceleration in a uniform electric field since the electric field's direction is constant. As the electron passes through the electric field, both its velocity and kinetic energy will increase.

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Answer:

1. the robber carrying the metal safe will hurt more because the metal safe is heavier, so the heavier will be the force on the opposite direction from the one he was running when he hit the wall

2. ???

Explanation:

1. 3rd newton law: "If two bodies exert forces on each other, these forces are equal in magnitude and opposite in direction"

2. I don't know

Answer:

I’m pretty sure that its c

Explanation:

Rotation period for a mass of 0.550 kg at the same radius is 1.45 s.

The rotation period of a mass in circular motion is given by:

T = 2πR/v

where T is the period, R is the radius of the circular path, and v is the velocity of the mass.

For the first mass with a mass of 0.45 kg, radius R of 0.140 m, and period T of 1.45 s, we can calculate the velocity as follows:

v = 2πR/T = 2π(0.140 m)/(1.45 s) = 0.6066 m/s

Now, we can use the velocity and radius values to find the period for the second mass with a mass of 0.550 kg:

T = 2πR/v = 2π(0.140 m)/(0.6066 m/s) = 1.45 s

Therefore, the rotation period for a mass of 0.550 kg at the same radius is 1.45 s.

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Answer: coll

Explanation:

Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

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Answer: coll

Explanation:

The persοn is mοving at a speed οf 55 miles per hοur in the Sοuth directiοn when the persοn is 50 miles West and 70 miles Sοuth οf the car, and the distance between them is increasing at a rate οf 55 miles per hοur.

Tο determine the speed at which the persοn is mοving, we can use the cοncept οf relative velοcity.

Let's cοnsider the hοrizοntal and vertical cοmpοnents separately:

Hοrizοntal Cοmpοnent:

The persοn is walking due East, which is perpendicular tο the Nοrth directiοn οf the car. Therefοre, the hοrizοntal cοmpοnent οf the persοn's velοcity dοes nοt affect the speed at which the persοn is mοving away frοm the car.

Vertical Cοmpοnent:

The persοn is 70 miles Sοuth οf the car, and the distance between them is increasing at a rate οf 55 miles per hοur. This indicates that the persοn's vertical pοsitiοn is changing with time. Since the persοn is mοving in the Sοuth directiοn and the distance is increasing, the persοn's speed can be determined by the rate οf change οf the vertical distance.

Given that the distance is increasing at a rate οf 55 miles per hοur, the persοn's speed in the Sοuth directiοn is 55 miles per hοur.

Therefοre, the persοn is mοving at a speed οf 55 miles per hοur in the Sοuth directiοn when the persοn is 50 miles West and 70 miles Sοuth οf the car, and the distance between them is increasing at a rate οf 55 miles per hοur.

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The amount of space a wave covers in a certain amount of time, such as the number of meters it covers in a second, is known as its speed of wave.

The formula Speed = Wavelength x Frequency relates wave speed to both wavelength and wave frequency. The formula wave speed = frequency x wavelength relates wave speed to wavelength, frequency, and period. The speed of light, or roughly 300,000 kilometers per second, is the absolute speed limit at which a wave can move according to Einstein's theory of special relativity. A change in the medium is truly necessary to modify the wave's speed since the wave's speed is a feature of the medium. The wave speed is constant if the medium does not alter during the wave's motion.

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Answer:

Red, orange, yellow, green, cyan, blue, violet.

Explanation:

As we know that the energy of every photon of light directly depends on the size of the wavelength. As short as the wavelength would be as greater the energy delivered by each photon of light would be. Thus, the colors displayed in the visible electromagnetic spectrum would include 'red, orange, yellow, green, cyan, blue, violet' with different wavelengths.

Hay muchos ejemplos importantes de fuerzas que no funcionan porque actúan perpendiculares al movimiento. Para el movimiento circular, la fuerza centrípeta siempre actúa en ángulo recto con el movimiento. Cambia la dirección del movimiento, pero no funciona en el objeto.

For the right block to balance the forces and remain steady, it needs to weigh 7.9 kg.

The force is an external agent which is applied to the body or an object to move it or displace it from one position to another position.

When there is no net force acting on the system, the two blocks stay in place. In this instance, the strain in the rope holding the two blocks together balances the pull of gravity on them. The sine of the angles, along with the masses of the blocks, can be used to calculate the tension in the rope.

\(T= (m_1 \times g) \times sin(\theta_1) + (m_2\times g) \times sin(\theta_2)\)

Substituting the known values:

\(T = (10 \times 9.8 )\times sin(23^o) + (m_2\times 9.8 )\times sin(40^o)\)

Solving for m₂:

\(m_2= \dfrac{(T- (10 \times 9.8 )\times sin(23^o)} { (9.8\times sin(40^o))}\)

The mass of the right block must be 7.9 kg for the two blocks to remain stationary.

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The question is -

Two blocks in the Figure below are at rest on frictionless surfaces What must be the mass of the right block so that the two blocks remain stationary? 4.9kg 6.1kg 7.9kg 9.8kg

Answer:

COMPOUND

Explanation:

Answer:

reflect

Explanation:

In order to see the image of an object in a mirror, you must sight at the image; when you sight at the image, light will come to your eye along that line of sight.

The fundamental frequency is 25.29 Hz.

Frequency is the wide variety of occurrences of a repeating event in line with a unit of time. The time period frequency refers to the variety of waves that pass a set factor in unit time. It additionally describes the number of cycles or vibrations undergone for the duration of one unit of time with the aid of a body in periodic motion.

Calculation:-

Length L = 3.4 m

Speed of sound v = 344 m / s

Fundamental frequency f = v / 4L

= 25.29 Hz

Wavelength is the distance among the same points (adjacent crests) within the adjoining cycles of a waveform signal propagated in space or along a wire. The wavelength is the distance between two wave crests, and it will likely be the same for troughs. The frequency is the number of vibrations that bypass over a given spot in a single 2d, and it is measured in cycles consistent with 2d (Hz) (Hertz).

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Doing pull ups and when have a pause at up , there is almost entire body weight just except the weight of the hands.

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Answer:

20 times

Explanation:

75kg × 20 = 1500kg

Amount of time greater is the force of gravity is 20 times

Given:

Mass of person = 75 kg

Mass of jeep = 1500 kg

Find:

Amount of time greater is the force of gravity

Computation:

Amount of time greater is the force of gravity = Mass of jeep / Mass of person

Amount of time greater is the force of gravity = 1500 / 75

Amount of time greater is the force of gravity = 20 times

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Answer:3.5 seconds

Explanation:

A compass needle always points north due to Earth's magnetic field.

The Earth acts as a giant magnet with a magnetic north and south pole. The compass needle is a small magnet that aligns itself with the Earth's magnetic field.

The needle's north pole is attracted to the Earth's magnetic south pole, which is located near the geographic north pole. This alignment causes the needle to point in a northerly direction.

The magnetic field of the Earth provides a consistent reference point for navigation and has been utilized by humans for centuries. By following the compass needle's direction, individuals can determine their heading and navigate accurately.

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The reinforcement schedule is this variable interval.

Shaping is the use of iterative approximation enhancements to the desired behavior. In particular, when molding techniques are used the approximate desired motion exhibited is enhanced, but the motion that is not an approximation of the desired motion is not enhanced.

Continuous reinforcement is reinforcement that is repeated each time the behavior occurs. This may involve a positive applying the stimulus or negative reinforcement with the aim of encouraging a specific behavior. Continuous enhancement is one of the two basic types of enhancement plans. Associative learning occurs when organisms associate stimuli or events that occur simultaneously in their environment.

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The difference in entropy when 50 g of water heated to 80 °C is added to 100 g of water cooled to 10 °C in an insulated vessel The change in entropy is 86.3 J/K.

To calculate the change in entropy, we first need to find the change in temperature and the amount of heat transferred.

Let's assume that the final temperature of the mixture is T.

The heat lost by hot water = heat gained by cold water

m1Cp(T1 - T) = m2Cp(T - T2)

where m1 = 50 g, m2 = 100 g, Cp = 75.5 J/K⋅mol, T1 = 80°C, and T2 = 10°C.

On solving the above equation, we get T = 36.7°C.

The heat lost by hot water = m1Cp(T1 - T) = 50 x 4.184 x (80 - 36.7) = 8705.6 J

The heat gained by cold water = m2Cp(T - T2) = 100 x 4.184 x (36.7 - 10) = 11704.8 J

The net change in entropy can be calculated as ΔS = q/T, where q is the heat transferred and T is the final temperature of the mixture.

So, ΔS = (8705.6 + 11704.8) / (36.7 + 273) = 86.3 J/K

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Answer: it's 69200

Explanation:

I gotchu guys

Explanation:

0.10kg

0.5kg×0.2kg=

0.10

The frequency of the second harmonic wave is 425 Hz

The length of the pipe = 0.8 m

The velocity of the sound = 340 m/s

The frequency of the second harmonic wave can be found using the formula,

                    v₂ = 2 v₁

where v₂ is the frequency of the second harmonic wave

           v₁ is the fundamental frequency

So, the fundamental frequency can be found using the formula

                      v₁ = v / 2L

where v is the velocity of the sound

          L is the length of the pipe

Let us substitute the known values in the above equation, we get

                    v₁ = 340 / 2 x 0.8

                        = 340 / 1.6

                        = 212.5 Hz

Then, the frequency of the second harmonic wave is

                   v₂ = 2 x 212.5

                       =  425 Hz

Therefore, the frequency is 425 Hz

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In the field of physics, total internal reflection refers to the entire reflection of a beam of light that is traveling through a medium such as water or glass back into the medium itself from the surfaces that surround the medium.

When the angle of incidence is larger than a specific limiting angle, which is referred to as the critical angle, the phenomena will take place. When a ray of light traveling through a medium with a higher index of refraction approaches another medium with an angle of incidence that is greater than the critical angle, a phenomenon known as total internal reflection occurs. In general, this phenomenon takes place at the boundary between two transparent media.

True statements are;

1. A smaller critical angle means the total internal reflection is more likely to occur.

2. Fiber optic cables are practical applications of total internal reflections.

False statements are;

1. When light hits a boundary at a less than the critical angle, it will undergo total internal reflection.

2. Single reflection of light of a silvered mirror is more efficient than total internal reflection so mirrors are often used instead of prisms in optical instruments to minimize light loss.

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