a cosmic ray travels 60.0 km through the earth's atmosphere in 350 μs , as measured by experimenters on the ground. you may want to review (pages 1035 - 1039) .

When you push a pencil off your desk, the energy transformation that takes place is that potential energy transforms into kinetic energy.

The correct answer to the given question is option C.

Potential energy is the energy stored within an object because of its position or configuration.

In this scenario, the pencil has potential energy because of its elevated position on the desk. When the pencil is pushed off the desk, it begins to move, which means that it has kinetic energy. Kinetic energy is the energy of motion.

As the pencil falls off the desk, its potential energy is transformed into kinetic energy, which is the energy that results from its motion. The faster the pencil falls, the greater its kinetic energy will be because kinetic energy is directly proportional to the square of an object's velocity.

Therefore, when you push a pencil off your desk, the potential energy that it has because of its elevated position is transformed into kinetic energy as it falls towards the ground.

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Answer:

the statement is FALSE

Explanation:

To answer this question we use that thermodynamic energy is

           E = K T

also according to the Planck relation

          E = h f

the speed of light et related to frequencies and wavelength

          c = λ f

          f = c /λ

we substitute

           hc /λ = KT

           λ= hc / k T

calculate us

           lam = 6.62 10⁻³⁴ 3 10⁸ / 1.381 10⁻²³ 5400

           lam = 2,663 10⁻⁸ m

let's reduce to num

         lam = 2,663 10  

         lam = 26,63 nm

This wavelength is in the farultraviolet, therefore the statement is FALSE

When classifying the 36 cells into their individual phases of mitosis ,Inter phase had the highest representation of cells .So option B is correct.

Pro phase is the first phase of mitosis, and it is when the chromosomes condense and become visible. The nuclear envelope breaks down, and the spindle fibers form.

Meta phase is the second phase of mitosis, and it is when the chromosomes line up along the spindle fibers. The chromosomes are then pulled apart by the spindle fibers.

Ana phase is the third phase of mitosis, and it is when the chromosomes are pulled to opposite poles of the cell. The cell then begins to divide.

Telophase is the final phase of mitosis, and it is when the cell divides into two daughter cells. The chromosomes uncoil, and the nuclear envelope reforms.Therefore option B is correct.

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The sum of the measures of the two angles is 211 degrees. Angles are geometric figures formed by two rays that share a common endpoint, known as the vertex.

If angle Z is a straight angle, it means it measures 180 degrees.

Given:

m∠Y = (2x - 3)°

m∠Z = (13x - 41)° = 180°

Setting up an equation:

13x - 41 = 180

Now, we can solve for x:

13x = 180 + 41

13x = 221

x = 221/13

x ≈ 17

Now, we can find the measure of angle Y:

m∠Y = (2x - 3)°

m∠Y = (2 * 17 - 3)°

m∠Y = 31°

The sum of the measures of the two angles (Y and Z) is:

m∠Y + m∠Z = 31° + 180° = 211°

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Answer:

The mass of the other planet is 7.23*10^(30) kg

Explanation:

For two objects of masses m₁ and m₂ respectively, separated by a distance r, the gravitational force between them is given by:

F = G*(m₁*m₂)/r^2

Where G = 6.67*10^(-11) m^3/(kg*s^2)

Here, we know that:

r = 4.5*10^8m

m₁ = 2.1*10^21 kg

F = 5*10^24 N

And we want to find the mass of the other planet, first, let's isolate m₂ in the force equation:

(F*r^2)/(G*m₁) = m₂

Now we can replace all the values that we know in the left side, and solve it:

m₂ =[(5*10^24 N)*( 4.5*10^8m)^2]/[6.67*10^(-11) m^3/(kg*s^2)*2.1*10^21 kg]

m₂ = 7.23*10^(30) kg

The mass of the other planet is 7.23*10^(30) kg

Answer:

The new force will become 1/4 times of the initial force.

Explanation:

The Coulomb force between two charges is directly proportional to the product of charges and inversely proportional to the square of the distance between them.

It can be given by :

\(F=k\dfrac{q_1q_2}{r^2}\) ....(1)

r is distance

If we decrease the r by a factor of 2, r'=2r.

New force will become,

\(F'=k\dfrac{q_1q_2}{r'^2}\\\\=k\dfrac{q_1q_2}{(2r)^2}\\\\=k\dfrac{q_1q_2}{4r^2}\\\\=\dfrac{1}{4}\times \dfrac{kq_1q_2}{r^2}\\\\F'=\dfrac{F}{4}\)

So, the new force will become 1/4 times of the initial force.

The sign of the estimate of the area under the curve using left or right endpoints cannot be determined if f is not known to be increasing or decreasing on [a, b].

1. Using left endpoints would give an overestimate of the area under the curve on this interval.

2. Using right endpoints would give an underestimate of the area under the curve on this interval.

3. Using right endpoints would give an overestimate of the area under the curve on this interval.

4. Using left endpoints would give an underestimate of the area under the curve on this interval.

5. If f is not known to be increasing or decreasing on [a, b], it is not possible to determine the sign of the estimate of the area under the curve using left or right endpoints.

Suppose f is increasing on the interval [a, b] and we want to estimate the area under the curve on this interval. When using the left-hand endpoint, the rectangles will be above the curve if the curve is concave down, which will overestimate the area. When using the right-hand endpoint, the rectangles will be below the curve if the curve is concave down, which will underestimate the area. When using the left-hand endpoint, the rectangles will be below the curve if the curve is concave up, which will underestimate the area. When using the right-hand endpoint, the rectangles will be above the curve if the curve is concave up, which will overestimate the area.

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Answer:

D

Explanation:

The least of the conditions that can result in fossilization would be when an organism is a prey to several species.

Fossils are remains or traces of organisms that have been geological preserved and a prey is an organism that is often hunted and serves as food to bigger organisms. When an organism is eaten, the probability of it becoming a fossil becomes low. Unless such an organism is usually partially eaten by predators, there would not be any remains, let alone being fossilized.

The correct option is D.

Answer:

Psychiatrists are medical doctors, psychologists are not. Psychiatrists prescribe medication, psychologists can't. Psychiatrists diagnose illness, manage treatment and provide a range of therapies for complex and serious mental illness. Psychologists focus on providing psychotherapy (talk therapy) to help patients.

Explanation:

Answer:

Psychiatrists are medical doctors, psychologists are not. Psychiatrists prescribe medication, psychologists can't. Psychiatrists diagnose illness, manage treatment and provide a range of therapies for complex and serious mental illness. Psychologists focus on providing psychotherapy (talk therapy) to help patients.

Explanation:

The optical effect that is essential to the visual experience of motion pictures is known as Persistence of Vision.

Persistence of Vision (POV) is a phenomenon of the eye where an image or object is perceived by the brain for a short period of time after the image or object has been removed from the viewer's sight. The phenomenon occurs because of the retina's temporary retention of visual images even after they have been seen.

The Persistence of Vision enables the human eye to perceive the illusion of motion when viewing a series of still images in rapid succession. This effect is the foundation for the creation of motion pictures. In films, a sequence of still images is displayed in rapid succession (typically at a rate of 24 frames per second) that simulates motion to the human eye, tricking it into believing that the images are moving in a fluid and natural way.

POV is an essential aspect of the visual experience of motion pictures as it allows filmmakers to create an illusion of motion using a series of still images. The human eye is capable of retaining images for a short period of time after they have disappeared from the field of vision, which makes this effect possible.

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Answer:

a

Explanation:

mark me as brainlist ez

Answer:

C. Natural selection.

It take  1.45s to the Martian detector to hit the ground.

We are know that,

Acceleration = a = - 3.8 m/s²

Distance = r = 8m

Final velocity = v =  0 (The rock's velocity is zero at its maximum height.)

Time = ?

Thus to calculate the hitting time of the Mars ground we can use the formula,

acceleration  = change in velocity / time

First of all we have to calculate the initial velocity (u) of the Martian i.e.

a = u²/r

u² = a.r

u² = (-3.8m/s²)× 8m

u² = -30.4m²/s²

u = - 5.51 m/s

Putting the value of initial velocity in the above equation we can get the hitting time,

-3.8 m/s² = 0 - (5.51m/s)/t

t = (-5.51m/s)/(-3.8m/s²)

t = 1.45s

The Martian detector hits the ground in 1.45 seconds.

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Given that the radius of the circular path is r = 142 m and the coefficient of the friction is

The condition for the car to travel safely is

Frictional force = centrifugal force

Here, m is the mass of the car and the acceleration due to gravity is g = 9.8 m/s^2.

v is the maximum speed of the car.

Answer:

Explanation:

A - 4.5

The skier is going approximately 26.45 m/s at the bottom of the slope.

To find the velocity (V) of the skier at the bottom of the slope, we can use the principle of conservation of mechanical energy. The initial potential energy at the top of the slope is converted into kinetic energy at the bottom of the slope. We'll assume there is no loss of energy due to non-conservative forces.

Given:

Mass of the skier (m) = 63.0 kg

Height of the slope (h) = 70.0 m

Work done by frictional forces (W) = -11.0 kJ = -11,000 J (negative sign indicates work done against the motion)

The initial potential energy (PE) is equal to the work done by frictional forces (W):

PE = W

mgh = -11,000 J

Now, let's solve for the final velocity (V) using the principle of conservation of energy:

PE + KE = 0.5mv^2

At the top of the slope, all the energy is in the form of potential energy (PE = mgh):

mgh + KE = 0.5mv^2

Substituting the given values:

(63.0 kg)(9.8 m/s^2)(70.0 m) + KE = 0.5(63.0 kg)v^2

Simplifying:

44100 J + KE = 31.5v^2

Since the work done by frictional forces is negative (against the motion), it decreases the total mechanical energy, so we subtract it:

44100 J - 11,000 J + KE = 31.5v^2

Simplifying further:

33000 J + KE = 31.5v^2

The final velocity (V) can be calculated by solving the equation for v:

V = sqrt((33000 J + KE) / 31.5 kg)

Now, substitute the work done by frictional forces (W) as KE:

V = sqrt((33000 J - 11,000 J) / 31.5 kg)

Calculating:

V = sqrt(22,000 J / 31.5 kg)

V ≈ sqrt(698.41 m^2/s^2)

V ≈ 26.45 m/s (rounded to three significant figures)

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Free body diagram:

Here, T_1 is the tension in the left cable (T_1=30000 N; given), T_2 is the tension in the right cable, W is the weight of the tram.

The force equation in horizontal direction is given as,

Therefore, the tension in right cable T_2 is given as,

Substituting all known values,

The force equation in the vertical direction is given as,

Substituting all known values,

Therefore, the weight of the tram is 8038.47 N.

Answer:

5.6*10^23. if 10^n is greater, that means its the larger value. hope dis helps

Explanation:

Answer:

Newton's second law: F=ma.

Force = mass x acceleration

This basically means, that the more massive something is, and the faster it is going, the more force the object will have.

So, the factors that can be used to find acceleration are:

F=ma

a=F/m

So, we see that the correct answer is A, mass and force.

Let me know if this helps!

The voltage drop across a 5 Ω resistor if the current through it is 5 A is calculated to be 25 V.

From Ohm's law we know the equation, V = I R

where,

V is the voltage drop

I is the current

R is the resistance

Given that,

I = 5 A

R = 5 Ω

Putting the values in the above equation, we have,

V = I R = 5 × 5 = 25 V

Thus, the required voltage drop across a 5 Ω resistor if the current through it is 5 A is calculated to be 25 V.

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Answer:

A

Explanation:

Answer:

Explanation:

A) E) When the light hits a square on the CCD charge is produced

B) A) Starting in one corner the charge on each square is moved off the CCD

C) D) The charges on each square are converted into a digital signal

D) B) Light enters the camera

E) C) That signal can be stored or sent to a computer or other device

b. The delay between taking one photograph with a digital camera and taking the next photograph is due to the time it takes to capture the image and process it into a digital signal. This process includes the capturing of the light entering the camera, the conversion of the charges on each square of the CCD into a digital signal, and the storage or sending of the signal to a computer or other device.

The distance travelled by the table of mass 75 kg pushed with a force of 200 N at 20° is 5400 m

W = m g

m = 75 kg

g = 9.8 m / s²

W = 75 * 9.8

W = 735 N

θ = 20°

F = 200 N

Resolving W into its horizontal component,

\(W_{x}\) = W sin θ

\(W_{x}\) = 735 * sin 20°

\(W_{x}\) = 250 N

∑ \(F_{x}\) = m a

F + \(W_{x}\) = m a

200 + 250 = 75 a

a = 450 / 75

a = 6 m / s²

a = v / t

t = 30 s

v = 6 * 30

v = 180 m / s

v = d / t

d = 180 * 30

d = 5400 m

Therefore, the table is 5400 m far away.

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According to the Third Kepler Law, the average distance from the Sun (A) is directly proportional to the cube root of the orbital period (T). So, for a new planet with an orbital period of 6548 years, we can calculate the average distance (A) using the equation: A = (T^(1/3)) x (A_earth^(2/3)), where A_earth is the average distance of the Earth from the Sun, which is approximately 150 million km.
Plugging in the given values, we get: A = (6548^(1/3)) x (150x10^6 km)^(2/3) = ∼260AU.

Therefore, the average distance from the Sun for the newly-discovered planet in our solar system is ∼260AU.
The average distance from the sun for the newly-discovered planet in our solar system is approximately 240AU.Kepler's third law states that the square of the orbital period is proportional to the cube of the semi-major axis of the orbit. It states that "the square of the period of revolution of a planet is proportional to the cube of the semi-major axis of its orbit." Kepler's third law mathematically connects the distance of a planet from the sun and its orbital period, that is, a planet's "year" or "revolution."The equation used to relate the third Kepler law is: T2 = (4π2 a3) / GMWhere T is the orbital period, a is the semi-major axis of the orbit, G is the gravitational constant, and M is the mass of the Sun. The value of T is provided as 6548 years, which is substituted in the equation above:6548^2 = (4π2 × a3) / (6.674 × 10-11 × 1.989 × 1030)Solving for a, we get:a = 239.8 ≈ 240 AU.Hence, the answer is option C. ~240AU.

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Answer:

méthode if séparation muddy water

Answer: The red ball has a greater velocity than the purple ball

Explanation:

Given the chart :

Ball : Green - - - Red - - - Yellow - - - Purple

Mass : 0.5 - - - - - - 1.2 - - - - - 0.9 - - - - - - 1.7

The four balls have the same momentum

Momentum = mass × velocity

Since momentum is directly proportional to the product of Mass and velocity, and the balls have the same momentum. Therefore the lower the mass of the ball, the higher or greater it's Velocity.

Because if the balls with lower masses have lower Velocities than balls with higher masses, both balls cannot have the same momentum.

Therefore, the only viable option above is, The red ball has a greater velocity than the purple ball, because the red ball has a lower mass than the purple ball

Answer:

B in edg

Explanation:

The probability that a loaf of bread chosen at random will have a mass of more than 450g is 0.0026 or 0.26%.

The probability that a loaf of bread chosen at random will have a mass of more than 450g is found by first standardizing the random variable, using the standard normal distribution. We can then use the standard normal table or calculator to find the area to the right of the standardized value. The standardized random variable can be found using the formula

Z = (X - μ) / σ,

where X is the given value, μ is the mean, and σ is the standard deviation.

Substituting the given values, we get:

Z = (450 - 400) / 18 = 2.78

Using the standard normal table or calculator, we can find the area to the right of 2.78. This area represents the probability that a loaf of bread chosen at random will have a mass of more than 450g.

Using a standard normal table or calculator, we find that this area is 0.0026 or 0.26%.

Hence, the probability that a loaf of bread chosen at random will have a mass of more than 450g is 0.0026 or 0.26%.

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