this chapter considers a downhill race between a rolling sphere, a rolling cylinder, a rolling hoop, and a sliding particle. who wins? this chapter considers a downhill race between a rolling sphere, a rolling cylinder, a rolling hoop, and a sliding particle. who wins? the sphere the cylinder the hoop the particle it is a tie.

Answer:

The longer the wave, the deeper the wave base - True

The greater the wave height, the deeper the wave base - false

The longer the wave, the faster the wave travels- true

The greater the wave height, the faster the wave travels- false

The faster the wave, the greater the wave height - False

Explanation:

When a wave has a high length it means that the wave base will be deeper.

The longer the wave, the deeper the wave base - True

When the weight height is big , the wave base will be deeper.

The greater the wave height, the deeper the wave base - false

The longer the wave, the faster the wave travels- true

The greater the wave height, the faster the wave travels- false

The faster the wave, the greater the wave height - False

Answer:

10

Explanation:

15 cm minus 5 cm

Answer:

Explanation:

Yes, translations are rigid transformations. You can verify that the distances between the points are preserved.

Answer:

True

Explanation:

In translation, all points of the figure move the same distance and in the same direction. The shape and size of the image remains the same as the preimage

Answer:

Yes

Explanation:

Youth play a vital role in service to the community.

Answer:

Option D

Last option

GOOD LUCK FOR THE FUTURE! :)

Answer:

The atoms start vibrating really fast, making the space between them larger. It's an increase in Kinetic Energy.

Answer:

Explanation:

This is a product of a mass and velocity of a moving or a rest body.

it is expressed as P(momentum)=M(mass) × V(velocity)

Its SI unit is kgm/s

From our question.

Given

Momentum=3600kgm/s

Velocity=6m/s

RTF=Mass

Solution

P=M×V

M=P/V

= 3600kgm/s

6m/s

Answer:

42000N

Explanation:

.........................

Answer:

23 cm from the mirror

Explanation:

It emphasizes how much humans rely on fossil fuels, even though they release carbon dioxide. So, option B.

Fossil fuels are used to generate energy; they are used in houses to generate heat, in large power plants to generate electricity, and in engines to generate power.

80 percent of the world's primary energy demand is currently met by fossil fuels, and the energy system is responsible for about two thirds of all CO2 emissions in the world.

Particularly with regard to indoor air quality in many less developed countries, these are incredibly inefficient and polluting. Sustainable development is hampered by the utilization of renewable biomass in this manner.

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your on here to lol we must be hella failing g

Answer:

The final angular speed is 16.1 rad/s

Explanation:

Given;

initial moment of inertia, I₁ = 2.56 kg.m²

final moment of inertia, I₂ = 0.40 kg.m²

initial angular speed, ω₁ = 0.4 rev/s = 2.514 rad/s

Apply the principle of conservation of angular momentum;

I₁ω₁ = I₂ω₂

where;

ω₂ is the final angular speed

ω₂ = (I₁ω₁) / (I₂)

ω₂ = (2.56 x 2.514) / (0.4)

ω₂ = 16.1 rad/s

Therefore, the final angular speed is 16.1 rad/s

The skydiver covered a distance of approximately 94.9 meters before opening his parachute between t1 and t2, assuming no air resistance or friction.

v = final velocity = v2 = 27 m/s

u = initial velocity = v1 = 11 m/s

a = acceleration = g = 9.8 m/\(s^2\)

s = (v² - u²) / 2a

s = (27² - 11²) / (2 x 9.8) = 94.9 meters

Resistance measures an item's potential to impede the drift of electrical present-day through it. it's far measured in ohms (Ω). Resistance is decided by way of the bodily residences of an item, along with its dimensions, material, and temperature. while electric-powered present-day flows thru a conductor, it encounters resistance that slows down its float. This resistance is as a result of the collisions among electrons and the atoms inside the conductor.

Resistance can be laid low with changes inside the bodily properties of the conductor, such as duration, cross-sectional region, or temperature. an extended or narrower conductor may have higher resistance, even as a much broader conductor could have decreased resistance. understanding resistance is critical for designing and working electrical circuits. with the aid of controlling the resistance of a circuit, engineers can make sure that the appropriate amount of current flows to electricity the devices linked to it.

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Answer:12

Explanation:

a) The mechanical energy of a system is conserved if air resistance is ignored. (b) For this situation, two types of potential energy exist: gravitational potential energy and elastic potential energy.

Explanation: If air resistance is not taken into consideration, the system will be in a state of total mechanical energy conservation. In the absence of air resistance, the kinetic energy and potential energy of the system remain constant, and the mechanical energy remains unchanged.

b) Both gravitational and elastic potential energies are two types of potential energy for this situation. Potential energy is the amount of energy stored in an object as a result of its location or configuration. It may also be stored in a system of objects, like a weight linked to a spring that is suspended from the ceiling vertically.

In a vertical direction, the weight has gravitational potential energy due to its position in the gravitational field of the Earth. The weight is at a specific height from the ground, and this height contributes to the object's potential energy.

The potential energy of a weight suspended from a spring is the second type of potential energy in this scenario. When the spring is stretched, it stores energy in the form of elastic potential energy. The spring's potential energy is transformed into kinetic energy as it vibrates up and down.

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a. The time of a gyroscope slow from an initial rate of 32.0 rad/s at a rate of 0.700 rad/s² take to come to rest is 45.7 seconds.

b. The amount of revolutions is 824.2 revolutions before stopping.

To find the time it takes for the gyroscope to come to rest, we can use the formula:

ωf = ωi + αt

Where:

Rearranging the formula to solve for time, we get:

t = (ωf - ωi) / α

Plugging in the values, we get:

t = (0 - 32.0) / (-0.700)

t ≈ 45.7 seconds

Therefore, it takes approximately 45.7 seconds for the gyroscope to come to rest.

To find the number of revolutions the gyroscope makes before stopping, we need to find the total angular displacement. We can use the formula:

θ = ωi * t + 1/2 * α * t²

Where:

Plugging in the values, we get:

θ = (32.0) * (45.7) + 1/2 * (-0.700) * (45.7)²

θ ≈ 5184 rad

To find the number of revolutions, we need to divide the angular displacement by the angle of one revolution (2π radians):

revolutions = θ / (2π)

revolutions ≈ 824.2

Therefore, the gyroscope makes approximately 824.2 revolutions before stopping.

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Answer:

Explanation:

When two materials are rubbed against each other, they become charged.

It is called charging by rubbing.

Hope this helps

plz mark as brainliest!!!!!!!

Answer:

4 m/s East.

Explanation:

Velocity: This cam be defined as the rate of change of displacement. The unit of velocity is m/s.

From the question,

v = d/t...................... Equation 1

Where v = velocity, d = displacement, t = time.

Given: d = 20 m East, t = 5 seconds.

substitute into equation 1

v = 20/5

v = 4 m/s East.

Hence the average velocity = 4 m/s East.

Answer:

its velocity, wavelength and frequency all change

Explanation:

Whenever a wave crosses the boundary between two media of different densities, its velocity, frequency and wavelength changes. This appears as a bending of the wave as it crosses the boundary from one medium to another.

Refraction is a fundamental property of waves. Hence when light is travelling from air into water, it wavelength, speed and frequency all changes at the interface between the two media.

To explain the tangent plane to the surface, `z = 53 − x² − 2y²` at the point `(3, 2, 6)`, let us first determine the partial derivatives of `z` with respect to `x` and `y`.

Partial derivative of `z` with respect to `x`, `∂z/∂x = -2x`Partial derivative of `z` with respect to `y`, `∂z/∂y = -4y`Now, let's find the gradient vector `grad z` at `(3, 2, 6)` and the value of `z` at `(3, 2)`.gradient vector `grad z = (-2x, -4y, 1)`gradient vector `grad z = (-6, -8, 1)` at `(3, 2, 6)`.Value of `z` at `(3, 2)` is given by `z = 53 - 3² - 2(2)² = 39`.

Therefore, the equation of the tangent plane to the surface `

z = 53 − x² − 2y²` at `(3, 2, 6)` is:

`z - 6 = -6(x - 3) - 8(y - 2)`

which can be written as:`6x + 8y + z = 50`Thus, the equation of the tangent plane to the surface `z = 53 − x² − 2y²` at the point `(3, 2, 6)` is `6x + 8y + z = 50`.

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The nail attract the pins because current will generate and therefore it will attract the nails.

A stream of charged particles, such as electrons or ions, traveling through an electrical conductor or a vacuum is known as an electric current.

The net rate of electric charge flowing through a surface or into a control volume is how it is calculated.  Charge carriers, which can be any of a number of particle kinds depending on the conductor, are the moving particles.

Electrons flowing over a wire are frequently used as charge carriers in electric circuits. They can be electrons or holes in semiconductors. Ions are the charge carriers in an electrolyte, whereas ions and electrons are the charge carriers in plasma, an ionized gas.

Therefore, The nail attract the pins because current will generate and therefore it will attract the nails.

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Answer:

The potential energy is zero since the rock isn't moving.

Answer:  I think it would be 64890?

Explanation: I hope this is an answer i tried to the best of my ability!

The magnitude of the magnetic field inside the solenoid is approximately 0.0754 Tesla.

The magnitude B of the magnetic field inside the solenoid can be calculated using the formula B = μ₀ * n * I / l, where μ₀ is the permeability of free space (4π x 10⁻⁷ Tm/A), n is the number of turns, I is the current, and l is the length of the solenoid.

B = (4π x 10⁻⁷ Tm/A) * (900 turns) * (200 x 10⁻³ A) / (30 cm)
Convert the length to meters:
l = 30 cm * (1 m / 100 cm) = 0.3 m
Now, calculate B:
B = (4π x 10⁻⁷ Tm/A) * (900 turns) * (200 x 10⁻³ A) / (0.3 m)
B ≈ 0.0754 T

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Most geologist think the movement of Earth’s plates are caused by: convection currents in the mantle. Option C- is the correct answer.

This occurs as a result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.

These convection currents are in three forms namely:

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Option homophones is the correct option.

Words that sound the same but have different meanings are called homophones.

A term that has the same pronunciation as another word but a different meaning is called a homophone. Moreover, a homophone's spelling may vary. The two words can have the same spelling, as in rose and rose, or they can have a distinct spelling, as in rain, reign, and rein.

A homophone is defined as "one of two or more words pronounced alike but different in meaning, derivation, or spelling" by the Merriam-Webster Dictionary. Homophones are described as "words having various meanings which are spoken in the same way but are spelt differently" by the Collins Dictionary.

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Note: The correct question would be as bellow,

Words that sound the same but have different meanings are called

synonyms.

homophones.

antonyms.

The factors that can change the pattern observed on a screen during Young's double-slit experiment are given below:1. Width of the slit. 2. Distance between slits. 3. Distance between slits and screen. 4. Wavelength of the incident light. 5. Refractive index of the medium.

The factors that can change the pattern observed on a screen during Young's double-slit experiment are given below:

1. Width of the slit. The width of the slit can influence the diffraction pattern that is observed on a screen. When the width of the slit decreases, the central maximum of the diffraction pattern becomes broader, and the intensity of the secondary maxima reduces.

2. Distance between slits. The distance between the slits in the double-slit experiment also affects the pattern on the screen. The distance between the slits is equal to the spacing between the maxima. If the spacing between the slits decreases, the distance between the maxima decreases, and vice versa.

3. Distance between slits and screen. The distance between the slits and the screen is also a factor that can affect the diffraction pattern. When the distance increases, the spacing between the maxima becomes wider, and the intensity of the maxima decreases.

4. Wavelength of the incident light. The wavelength of the incident light is another factor that affects the diffraction pattern on the screen. When the wavelength increases, the spacing between the maxima increases, and vice versa.

5. Refractive index of the medium. The refractive index of the medium in which the light travels can also influence the diffraction pattern observed on a screen.

When the refractive index of the medium changes, the position of the maxima changes as well. These are the factors that can change the pattern observed on a screen during Young's double-slit experiment.

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Answer: The pH of the solution after 50.5 mL of 0.100 M KOH has been added is 16.85.

The reaction between acetic acid and potassium hydroxide (KOH) is given by the equation:

CH3COOH + KOH → CH3COOK + H2O.

It can be observed that for every mole of KOH added, one mole of H+ from CH3COOH reacts with one mole of OH- from KOH to produce one mole of H2O. Therefore, after the addition of n moles of KOH, the number of moles of H+ remaining is (0.200 - n) moles (since 0.200 M is the initial concentration of acetic acid). On the other hand, the number of moles of CH3COOK produced is also n moles; thus the final concentration of CH3COOK is n/V (where V is the total volume of the solution).

The reaction produces a salt (CH3COOK), which is neutral. Therefore, the final pH is given by: pH = pKa + log([A-]/[HA]) where A- is CH3COOK and HA is CH3COOH.

To find the pH of the resulting solution after the following volumes of KOH have been added, we need to calculate the number of moles of KOH added, the number of moles of CH3COOK produced, the number of moles of CH3COOH remaining, and the total volume of the solution. Then we can use the Henderson-Hasselbalch equation above to find the pH.

Here are the calculations: Initial number of moles of CH3COOH = M × V = 0.200 × 0.100 = 0.020 moles. For each mole of KOH added, one mole of CH3COOH reacts with one mole of KOH to produce one mole of CH3COOK.Number of moles of KOH added Volume of KOH added (mL)Moles of KOH added0.02 0.00 (initial) 0.000.02 10.10 0.010.02 20.20 0.020.02 30.30 0.030.02 40.40 0.040.02 50.50 0.05Number of moles of CH3COOK produced = number of moles of KOH added = n moles. Concentration of CH3COOK produced = n/V = n/(Vinitial + V added) = n/(0.100 L + V added)

Number of moles of CH3COOH remaining = initial number of moles - number of moles of KOH added = 0.020 - n moles. Total volume of the solution after the addition of KOH = V initial + V added = 0.100 L + V added. We can then use the Henderson-Hasselbalch equation to find the pH: pH = pKa + log([A-]/[HA])where A- is CH3COOK and HA is CH3COOH.pKa of acetic acid = 4.76

Let's tabulate the values of n, [A-], [HA], and pH for each volume of KOH added: Number of moles of KOH added n (moles)Concentration of CH3COOK produced [A-] (M)

Number of moles of CH3COOH remaining [HA] (M)pH0.000.000.020.76 (initial)0.010.010.019.84 0.020.020.018.98 0.030.030.018.20 0.040.040.017.49 0.050.050.016.85.

The pH of the solution after 50.5 mL of 0.100 M KOH has been added is 16.85.

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