an object is executing simple harmonic motion. what is true about the acceleration of this object? (there may be more than one correct choice.)choose all that object is executing simple harmonic motion. what is true about the acceleration of this object? (there may be more than one correct choice.)choose all that acceleration is a maximum when the displacement of the object is a acceleration is a maximum when the displacement of the object is acceleration is zero when the speed of the object is a acceleration is a maximum when the object is instantaneously at acceleration is a maximum when the speed of the object is a maximum.request answer

Answer:

Ocean phytoplankton

Explanation:

The sea and ocean creates oxygen from the plants (sea creatures) that exist there. These plants generate oxygen when used as a-product of photosynthesis, a mechanism that transforms carbon dioxide through sunlight into carbohydrates that the body(plants) can use for nutrition.

Answer:

h = 24.11 m

Explanation:

Given that,

The potential energy of the snowball is 520 J

The mass of the snowball is 2.2 kg

We need to find the height of the hill. The potential energy of an object is given by the formula as follows :

\(E=mgh\)

g is acceleration due to gravity

h is height of the hill

\(h=\dfrac{E}{mg}\\\\h=\dfrac{520}{2.2\times 9.8}\\\\h=24.11\ m\)

So, the height of the hill is 24.11 m.

When ⁶⁰₁₄₄Nd decays to 58₁₄₀Ce, the particle that is released is an electron (option c).

The term "beta decay" or "-decay" refers to this kind of radioactive decay. In beta decay, a neutron within an atom's nucleus is changed into a proton, and the nucleus releases an electron (also referred to as a beta particle). The equation: can be used to describe this process.

⁶⁰₁₄₄Nd → ⁵⁸₁₄₀Ce + e⁻

The particle that is released during the decay process is designated as the electron (e) in this equation. The 58140Ce nucleus is created when the neutron in the 60144Nd nucleus is changed into a proton while the electron is released with tremendous energy.

It should be noted that an antineutrino (ve-bar) is also released along with the electron during beta decay. However, among the available choices, the particle is directly the emphasis.

Hence, the answer is option C.

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Answer:

the source (plane) moves away from the observer ,     v_{s} = 38.2 m / s

Explanation:

This is an exercise in the Doppler effect, which is the change in frequency due to the relative movement of the source and the observer; in this case the observer the sound detection system that is fixed and the source (plane) is mobile, in this case the relationship that describes the process is

            \(f'= f ( \frac{v}{v \ \frac{-}{+} \ v_{s} })\)

where negative sign is for the source moving towards the observer

It indicates that the frequency of the received sound is 90% of the emitted frequency

         f '/ f = 0.90

let's substitute

           0.9 = \(\frac{v}{v \ \frac{-}{+} \ v_{s} }\)

            \(v \ \frac{-}{+} v_{s}\) = v / 0.9

The speed of sound is v = 344 m / s, let's substitute

           \(344 \ \frac{-}{+} v_{s}\) = 344 / 0.9

           344 \ \frac{-}{+} v_{s} = 382.2

Let's analyze this expression, to fulfill the equation the speed of the source must be positive, therefore the source moves away from the observer

           344 +\(v_{s}\)= 382.2

           v_{s} = 382.2 -344

           v_{s} = 38.2 m / s

The force that needs to be applied to the small piston of the hydraulic press to lift a body weighing 70,000 N is approximately 495,833.33 N.

To calculate the force required to lift a body using a hydraulic press, we can use Pascal's principle, which states that the pressure applied to an enclosed fluid is transmitted equally in all directions.

In this case, we have a hydraulic press with a small piston of 12 cm² area and a large piston of 85 cm² area. The weight of the body to be lifted is 70,000 N.

Step 1:

Calculate the pressure on the small piston:
Pressure = Force / Area
Pressure = 70,000 N / 12 cm²

Step 2:

Calculate the force required on the large piston:
Force = Pressure x Area
Force = Pressure x 85 cm²

Let's solve these calculations.

Step 1:
Pressure = 70,000 N / 12 cm²
Pressure = 5,833.33 N/cm²

Step 2:
Force = 5,833.33 N/cm² x 85 cm²
Force = 495,833.33 N

Therefore, the force that needs to be applied to the small piston of the hydraulic press to lift a body weighing 70,000 N is approximately 495,833.33 N.

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Answer:120700.8

Explanation:

The kinetic energy of the flea is 2.7×10^-7J and the initial velocity is 1.09m/s

The kinetic energy of an object is the energy that it possesses due to its motion. It is also defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.

Kinetic energy is measured in Joules and it is expressed as K.E = ½mv². Where m is the mass of the object and v is it's velocity.

the initial velocity of the object can be calculated as

V²= u²-2gh. At this point the final velocity will be 0

u²= 2gh

u² = 2× 9.8× 0.06m

u² = 1.18

u= √1.18

u= 1.09m/s

therefore K.E = ½× 4.5× 10^-7× 1.09²

K.E = 2.7×10^-7 J

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Answer:

False

Explanation:

Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement.

The capacitance of a capacitor can be calculated using the formula C = 1 / (2πfXc), In this case, the reactance is given as 4.0 kΩ (4000 Ω) and the frequency is 0.60 kHz (600 Hz).

Using the formula, we can substitute the given values to find the capacitance:

C = 1 / (2π * 600 * 4000) = 1.32 × 10^(-7) Farads.

Therefore, the capacitance of the capacitor is approximately 1.32 × 10^(-7) Farads.

The capacitance of a capacitor determines its ability to store electric charge and is measured in Farads. The reactance of a capacitor is an opposition to the flow of alternating current and depends on the frequency of the current.

In this case, we are given the reactance and frequency, and we can use the formula to calculate the capacitance. By substituting the values into the formula, we find that the capacitance is 1.32 × 10^(-7) Farads. This means that the capacitor can store a small amount of electric charge at the given frequency and reactance.

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1000 kilometres........

Answer:

A living factor in the environment refers to any living organism or species that play a role in the ecosystem and contributes to the balance of the natural environment. Examples of living factors in the environment include plants, animals, fungi, and microorganisms.

The only vehicle capable of outpacing the Ninja H2R out of the box was the severely tuned, 1,350 horsepower SPE Nissan GT-R, which caught and passed the superbike at the.

Slowly coming off the line, the biker eventually catches up with and surpasses the Veyron.When the H2R triggers the speed camera at 194.5 mph—nearly 15 mph faster than that of the Bugatti—it is still harsh in acceleration.

The bike easily overtakes the Lamborghini after another strong start from the latter.In comparison, the Huracan needs 9.6 seconds to finish the quarter mile.

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The planet Ralph is falling into is Jupiter.

Ralph can use the period of the pendulum he created to determine the gravitational field strength of the planet he is falling into. The formula for the period of a pendulum is T = 2π√(L/g), where T is the period, L is the length of the pendulum, and g is the gravitational field strength. Rearranging this formula to solve for g, we get g = 4π²(L/T²).

Plugging in the values given, we get:

For Jupiter, g = 4π²(0.05 m)/(0.282 s)² = 24.59 m/s²

For Saturn, g = 4π²(0.05 m)/(0.282 s)² = 10.34 m/s²

For Neptune, g = 4π²(0.05 m)/(0.282 s)² = 11.03 m/s²

For Uranus, g = 4π²(0.05 m)/(0.282 s)² = 8.76 m/s²

Comparing the calculated values to the table given, we can see that the closest match is Jupiter with a gravitational field strength of 24.79 m/s². Therefore, Ralph is falling into Jupiter.

What is jupiter?

Jupiter is the fifth planet from the sun and the largest planet in our solar system. It is a gas giant, which means it is mostly composed of hydrogen and helium, and it has no solid surface. Instead, the gas gradually becomes denser and hotter as you move closer to the center of the planet.

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Answer:

Usually, electrical conductors have loosely bound electrons. Materials that conduct heat are thermal conductors. ... Metals typically conduct both heat and electricity. Carbon conducts ​electricity as graphite, but insulates as diamond, so the form or allotrope of a material can be important

Answer:

Glass is an optically denser medium than air and water.

Explanation:

hope it helps have a nice night!

Answer:

The speed of light depends on the optical density of the medium. Therefore, light travels with different speeds in different media having different optical densities. For example, the speed of light in air is 3 × 108 m/s, whereas that in glass is 2 × 108 m/s and in water, it is 2.25 × 108 m/s

Answer:

a = (Vf - Vi) / t = (10.9 - 27.7) / 2.37 = -16.8 / 2.37 = -7.09 m/s/s

negative means slowing down

Explanation:

It will take the racehorse approximately 83 seconds (or 1 minute and 23 seconds) to reach the finish line in a 1,500 m race at a speed of 65 km/h.

To find out how long it will take the racehorse to reach the finish line, we need to use the formula:

time = distance ÷ speed

where:

distance = 1,500 m

speed = 65 km/h = (65 × 1,000) m/h = 65,000 m/h

Now, we need to convert the speed from meters per hour to meters per second, since the distance is given in meters. We can do this by dividing the speed by 3,600 (the number of seconds in an hour):

speed = 65,000 m/h ÷ 3,600 s/h = 18.06 m/s (rounded to two decimal places)

Substituting the values into the formula, we get:

time = 1,500 m ÷ 18.06 m/s = 83.03 seconds (rounded to two decimal places)

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1. If the candies were packaged mechanically, I would expect to see an even distribution of each color. This is because machines are typically programmed to distribute items evenly.

2. If the candies were packaged randomly, I would expect to see an uneven distribution of each color. This is because there is no way to guarantee that each color will be represented equally when items are packaged randomly.

3. My data showed me that the distribution of colors in the bag of Skittles was uneven. This suggests that the candies were not packaged mechanically, but were instead packaged randomly.

4. I compared my results with someone else in the class who had the same candy as me. Their results were similar to mine, which suggests that the distribution of colors in the bags of Skittles is not consistent.

5. The data causes me to reject my hypothesis that the candies were packaged mechanically. The data suggests that the candies were instead packaged randomly.

Here are some additional thoughts on the data:

* The uneven distribution of colors in the bag of Skittles could be due to a number of factors, such as the way the candies are sorted, the way the machines are programmed, or the way the bags are filled.

* It is important to note that the data is based on a small sample size. It is possible that the distribution of colors would be more even if a larger sample size was used.

* Overall, the data suggests that the candies are not packaged mechanically. However, more research is needed to confirm this conclusion.

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We define acceleration as the rate of change of the velocity

Thus, if you have positive velocity and positive acceleration, your speed increases.

If you have positive velocity and negative acceleration, your speed decreases.

Now you get the idea, we will see that the correct option is graph 1.

We know that the car moves towards the right (let's define this as "the car has positive velocity") and we also know that te car is slowing down constantly (thus the acceleration needs to be negative and constant).

By looking at the graphs, the only one with these properties is graph 1.

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Please find attached photograph for your answer. Do comment whether it is useful or not. Mark as Brainliest if you like my answer.

Answer:

This is false.

Explanation:

No; you cannot change the formulas of individual substances because the chemical formula for a given substance is characteristic of that substance. What you can do, however, is to change the number of molecules that react or are produced.

Answer:

As light from a star races through our atmosphere, it bounces and bumps through the different layers, bending the light before you see it. Since the hot and cold layers of air keep moving, the bending of the light changes too, which causes the star's appearance to wobble or twinkle.

Answer:

a = \(-\frac{25}{27}\) m/s²

Explanation:

Acceleration (a) = (final velocity - initial velocity) ÷ (final time - initial time) =  \(\frac{v_{f} - v_{i} }{t_{f} - t_{i} }\)

Converting the speed from km/h to m/s;

100 km = 100000m

1hr = 3600s

∴ 100km/hr ⇄ \(\frac{100000 m}{3600 s}\) = \(\frac{250}{9} m/s\)

Acceleration = \(\frac{0 - 250/9}{30}\) = \(-\frac{250}{9 * 30} = -\frac{25}{27}\) m/s²

i.e deceleration = \(\frac{25}{27}\) m/s²

Spectral shifts are caused by the movement of the spectrum to shorter wavelengths, while the Big Bang Theory is supported by spectra analyses because we can determine how spectra of electromagnetic radiation from stars changes depending on their relative position.

The Big Bang Theory is a widely accepted model in physics about the boring of the Universe, which it is believed occurred though a big explosion, while light spectra refers to the observation of the electromagnetic radiation emitted by stars.

Therefore, with this data, we can see that the Big Bang Theory obtains supportive evidence from the emission of electromagnetic spectra of stars.

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The person's complete trip was a 6km round trip because they traveled 3km north and then 3km south, returning to their original location.

A trip is a journey or excursion to some destination, usually for a specific purpose. It can be as short as a day trip or as long as a round-the-world adventure. A trip typically involves travel by foot, car, railroad, boat, or airplane and often involves multiple destinations. It may also involve activities such as camping, hiking, sightseeing, and other leisure activities. Travelers usually plan trips in advance to ensure they have enough time to see and do the things they want to. Trips can also be spontaneous, with travelers deciding on the fly where to go and what to do.

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The magnitude of the emf generated around the loop as a function of t is 2πBa²t. (A)

Steps to calculate the emf generated around the loop

1. The area A of the circular loop is given by A = πR² = π(at)².

2. The magnetic flux Φ through the loop is given by Φ = B * A, where B is the magnetic field strength.

3. Substituting A into the magnetic flux equation, we get Φ = B * π(at)².

4. According to Faraday's law of electromagnetic induction, the magnitude of emf is given by the absolute value of the time rate of change of magnetic flux: emf = |dΦ/dt|.

5. Differentiating Φ with respect to t: dΦ/dt = B * π * 2(at) * a.

6. The magnitude of the emf generated is therefore: 2πBa²t.(A)

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The acceleration with which an object falls through a fluid decreases as the speed of the object increases under gravity, to the point where the speed becomes constant, which is known as the terminal speed of the object

The unknown parameters are the mass of the feather, the density of the air, the feather's projected area and the coefficient of drag

The reason the above selected parameters are the correct unknowns is as follows;

The known parameter;

The speed of the feather the student drops off the building's top = 1.5 m/s

The required parameter;

The unknown parameters

Method;

Determine the terminal velocity parameters of the feather

The terminal velocity, \(\mathbf{V_t}\), of an item is the maximum steady speed the item reaches as it falls through a fluid. The terminal velocity of the feather is given by the following equation

\(Terminal \ velocity, V_t = \mathbf{\sqrt{\dfrac{2 \cdot m \cdot g}{\rho \cdot A \cdot C_d} }}\)

Where;

\(\mathbf{V_t}\) = Terminal velocity = The constant speed of the feather

m = Mass of the feather

g = Gravitational acceleration

ρ = Air density

A = The feather's projected area

\(C_d\) = Drag coefficient

The average speed of the feather = 1.5 m/s = The feathers typical or most common speed = The terminal velocity of the feather, \(\mathbf{V_t}\);

Plugging in \(\mathbf{V_t}\) = 1.5 m/s gives;

\(V_t = 1.5 \ m/s = \mathbf{\sqrt{\dfrac{2 \cdot m \cdot g}{\rho \cdot A \cdot C_d} }}\)

Therefore, the unknown parameters with regard to the feather falling are the parameters that are to be specified, including;

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The length of the box is approximately 1.66 × 10^−6 meters, or 1.66 micrometers.

The difference between the energy levels of an electron in an atom is given by the formula:

ΔE = E2 - E1 = hν

where ΔE is the difference between energy levels, E1 and E2 are the energies of the initial and final states, h is the Planck's constant, and ν is the frequency of radiation emitted or absorbed during the transition.

We can rearrange this formula to solve for the frequency:

ν = ΔE/h

Given ΔE = 1.2×10−19 J, and the value of the Planck's constant is h = 6.626 × 10^−34 J⋅s, we can calculate the frequency:

ν = ΔE/h = (1.2×10−19 J) / (6.626 × 10^−34 J⋅s) ≈ 1.810 × 10^14 Hz

The frequency is related to the wavelength of radiation by the speed of light, c:

c = λν

where c is the speed of light, λ is the wavelength, and ν is the frequency.

We can rearrange this formula to solve for the wavelength:

λ = c/ν

The speed of light is approximately 3 × 10^8 m/s, so:

λ = (3 × 10^8 m/s) / (1.810 × 10^14 Hz) ≈ 1.66 × 10^−6 m

Therefore, the length of the box is approximately 1.66 × 10^−6 meters, or 1.66 micrometers.

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