what's is the kinetic energy of a .235-kg baseball thrown at 50.0m/s

The stored elastic potential energy decreases.

When we compress a spring, we apply a force that compresses the coils of the spring closer together. This causes the spring to store elastic potential energy, which is the energy that the spring possesses due to its deformation. This potential energy is a form of mechanical energy that can be converted into other forms of energy, such as kinetic energy or thermal energy.

When the compressed spring is released, the stored elastic potential energy is converted into kinetic energy as the spring expands and the compressed coils of the spring move apart hence the store elastic potential energy decreases.

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The energy contained in a 2.83-m length of the beam is approximately 6.03 x 10^-9 J.

To calculate the energy contained in a beam of light, we need to use the formula:

Energy = Power x Time

However, we need to first find the time for a length of 2.83 m of the beam to pass by a certain point. We can do this by using the formula:

Time = Distance / Speed

The speed of light in vacuum is approximately 3 x 10^8 m/s. However, the speed of light in the beam will be slightly lower due to the refractive index of the medium through which it is traveling. For an argon-ion laser, this refractive index is close to 1, so we can assume that the speed of light in the beam is approximately the same as the speed of light in vacuum.

Therefore, the time for a length of 2.83 m of the beam to pass by a certain point is:

Time = Distance / Speed = 2.83 m / (3 x 10^8 m/s) = 9.43 x 10^-9 s

Now, we can calculate the energy contained in this length of the beam using the formula:

Energy = Power x Time

Energy = 0.639 W x 9.43 x 10^-9 s

Energy = 6.03 x 10^-9 J

Therefore, the energy contained in a 2.83-m length of the beam is approximately 6.03 x 10^-9 J.

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Answer:

Photosynthesis occurs in the organelle, chloroplast .

Cellular respiration occurs in a plants or animals mitochondria.

Explanation:

Hope this helps! :)

x(t)=Acos(ωt) The amplitude of the periodic motion, x (t) = A cos |A|, is the maximum magnitude of the object's displacement. is the angular frequency of motion given by 2T 2 T, where T is the period of periodic motion, or the time required to complete one full cycle.

How to Calculate the Amplitude of Simple Harmonic Motion ?

Periodic motion is defined as an object that moves back and forth over the same path. A restoring force acts to bring the moving object back to its equilibrium position. A simple harmonic motion occurs when the restoring force is proportional to an object's displacement.

The following equation describes a simple harmonic motion.

x ( t ) = A cos ( t ) | A | is the periodic motion's amplitude, which is the maximum magnitude of the object's displacement. is the angular frequency of motion given by 2 / T, where T is the period of periodic motion, the time required to complete one full cycle.

Therefore, the total period of vibrations in harmonic motion :4 | A | gives the total distance traveled in one complete cycle as an object oscillates.

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Answer:

Explanation:

The addition of two simple harmonic motions will produce a result that is also simple harmonic if the two simple harmonic motions have the same frequency and phase.

When two simple harmonic movements attain their maximum or lowest values at the same moment, they are said to be in phase. If the amplitudes of two simple harmonic movements have the same frequency and are in phase, the amplitude of the resulting motion may be calculated. This indicates that the combined system's motion will still oscillate at the same frequency as the separate movements and will be sinusoidal in form, as is the distinguishing feature of simple harmonic motion. As a result, adding two simple harmonic movements with the same frequency and phase results in a consequent motion that is likewise simple harmonic.

Answer:

(R=6. 4×106m)

Explanation:

The height above the surface of earth at which acceleration due to gravity is half the acceleration due to gravity at surface of earth

Explanation:

acceleration due to gravity at surface of earth is (R=6. 4×106m)

hope this answer helps you

The density of metal is 2.7 g/mL.

We need to know about the density to solve this problem. Density is a unit that measures how dense an object is. Density can be measured by dividing mass by volume. It can be written as

ρ = m / V

where ρ is density, m is mass and V is volume

From the question above, we know that

m = 4.86 g

V1 = 15.5 mL

V2 = 17.3 mL

Find the volume of metal

V = V2 - V1

V = 17.3 - 15.5

V = 1.8 mL

By substituting the following parameters, we get

ρ = m / V

ρ = 4.86 / 1.8

ρ = 2.7 g/mL

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Answer:

I think C? I'm not sure totally though...

Explanation:

When discussing the wavelengths of large-scale objects, we are referring to their de Broglie wavelengths. According to the de Broglie hypothesis, all objects exhibit wave-like behavior, with their wavelength inversely proportional to their momentum. As the mass and speed of an object increase, its wavelength decreases.

Large-scale objects, such as cars or boulders, have substantial mass and therefore their de Broglie wavelengths are extremely small. This means that their wave-like properties are insignificant in comparison to their particle-like properties.

Apertures are openings or holes through which objects can pass. When an object's de Broglie wavelength is much smaller than the aperture, its wave-like behavior has no observable effects, and the object's particle-like behavior dominates. In this case, the object would not exhibit any noticeable wave-like properties, such as diffraction or interference, while passing through the aperture.

In summary, large-scale objects have very small de Broglie wavelengths, making their wave-like properties negligible compared to their particle-like properties. As a result, these objects' wavelengths are much smaller than any aperture through which they could pass, and their behavior is dominated by their particle-like characteristics.

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The geologic event that is incorrectly identified is option A) D. Intrusion of magma at Earth's surface.

According to the Law of Superposition, the oldest rocks will be at the bottom and the youngest at the top of a sequence of sedimentary strata that has not undergone any deformation.

If you were to imagine a river dumping sand into an ocean, the sand would eventually pour out onto the ocean floor and settle on top of the seafloor. After the seafloor's sand had already been laid down, this sand was added.

Note that the events are as follows:

Therefore, option A is incorrectly labeled because it is one that is supposed to be labeled as subsidence and deposit layer of geologic event.

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Answer:

Explanation:

Acceleration is zero because the velocity is constant (not changing)

Bc acceleration is zero it follows from a = f/m that the net force is zero

Answer:

False

Explanation:

There are indeed more than just one way to modify behaviour .

Answer:

4 m

Explanation:

\(v = f \times  λ\)

speed of sound wave (according to question)

= 1 × 1000 = 1000m/s

wavelength is represented by λ

therefore to find the wavelength, divide the speed by the frequency of the second wave given by the question

λ of another wave = 1000 ÷ 250 = 4 m

Speed of sound equals wavelength and frequency. The wavelength of the sound wave if the frequency is 250hz is 4 meters.  

Sound requires a medium to propagate in the form of vibration. It is the pattern of disturbance caused by the movement of energy particles propagating through the medium.

Sound waves can travel in the form of transverse and longitudinal waves. When the sound source continues to vibrate in the medium, the vibrations are propagated in the form of sound waves.

The sound waves travel at different speeds in different mediums. the speed of sound waves remains constant in the same medium. The speed of sound waves is directly proportional to wavelength and frequency.

Wavelength(λ) measures the distance between two crests/ two troughs in a wave and its SI unit is a meter. The frequency (f) of a wave is the number of waves that pass in a certain time and its unit is hertz(Hz). The SI unit of the speed sound wave is m/s.

From the givens,

wavelength(λ) = 1 meter.

frequency (f) = 1000hz.

Speed of wave(v) = wavelength × frequency

                              = 1 × 1000

                           v   = 1000 m/s.

speed of wave = 1000 m/s.

frequency = 250hz

wavelength(λ) = speed / frequency

                        = 1000 / 250

                        = 4 meters.

Hence, the wavelength(λ) of a 250 hz sound wave is 4 meters.

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Explanation:

uasjwwbwjwbwia GJ wkwkjwnwnwjwjjwjwd7beba s

\(\\ \rm\hookrightarrow Acceleration=\dfrac{v-u}{t}\)

\(\\ \rm\hookrightarrow Acceleration=\dfrac{20-12}{45}\)

\(\\ \rm\hookrightarrow Acceleration=\dfrac{8}{45}\)

\(\\ \rm\hookrightarrow Acceleration=0.1m/s^2\)

Now

\(\\ \rm\hookrightarrow v^2-u^2=2as\)

\(\\ \rm\hookrightarrow (20)^2-12^2=2(0.1)s\)

\(\\ \rm\hookrightarrow 400-144=0.2s\)

\(\\ \rm\hookrightarrow 256=0.2s\)

\(\\ \rm\hookrightarrow s=\dfrac{256}{0.2}\)

\(\\ \rm\hookrightarrow s=1280m\)

Answer:

34kg

Explanation:

Answer:

not realy

Explanation:

dancing is a way of exercise and liking a song or you're just happy etc.

If an early frost destroys most of the apple crop, the equilibrium price of an apple is likely to increase.

An early frost that damages a significant portion of the apple crop would result in a decrease in the supply of apples. When the supply decreases, while demand remains constant or even increases, it creates a situation where the quantity demanded exceeds the quantity supplied. This imbalance in the market typically leads to an increase in the equilibrium price of apples.

With a reduced supply of apples, consumers would still desire to purchase them at the same or even higher quantities, especially if there are no close substitutes available. As a result, buyers may be willing to pay a higher price to secure the limited supply of apples. This increased demand coupled with the decreased supply causes the equilibrium price to rise.

Moreover, the extent of the increase in price will depend on the severity of the frost damage and the elasticity of demand. If the damage is severe and there are no alternative sources of apples, the price increase may be significant. However, if there are other regions or countries with unaffected apple crops that can fulfill the demand, the price increase may be relatively moderate.

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Answer:

d = -11.025 m

Explanation:

Given that,

An egg is dropped from a treehouse and takes 1.5 seconds to reach the ground. We need to find the egg's displacement. It can be calculated using second equation of motion as follows :

\(s=ut+\dfrac{1}{2}at^2\)

u is initial speed, the initial speed of egg is 0 as it was at rest initially.

a = -g (as the stone is coming downward direction)

t is time.

si is egg's displacement

\(s=0-\dfrac{1}{2}gt^2\\\\s=\dfrac{1}{2}\times 9.8\times 1.5^2\\\\d=-11.025\)

-ve sign shows the displacement of the egg in opposite direction of its motion and its magnitude is 11.025 meters.

It takes 2.916s for the bicyclist to catch the runner and the runner had ran 17.2m with constant velocity of 3.5m/s

How quickly or slowly an object is moving can be determined by its velocity and speed. The need to determine which of two or more moving objects is moving faster arises frequently in our daily lives.

If both vehicles are traveling down the same road in the same direction, it is simple to determine which is moving more quickly.

To tell who is moving faster, though, is challenging if they are moving in the opposite direction. The idea of velocity is valuable in such circumstances

Lets say runner and bicyclist start at a point vi

The distance bicyclist cover to catch runner  is \(S = (v_i)t = \frac{1}{2} at^2\)

As the initial velocity is zero distance \(S = \frac{1}{2} at^2\)

For the runner, distance he could run before bicyclist overpassed him is

S = vt

Now as athletes was 7m ahead so

= (athlete)S  = (bicyclist)S

= (athlete)S = (bicyclist)S - 7

Substitute the values

= vt = \(\frac{1}{2} at^2\)

= 3.5t = \(\frac{1}{2} (2.4)t^2\)

= 3.5t = 1.2t²

= 3.5 = 1.2t

= t = 2.916s

Distance of runner = 3.5 × 2.916s

                                = 10.206 + 7m

                                = 17.2m

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Answer:

As of right now the techology has not been invented to time travel

if we were to time travel to the future from where that person travled from would be the past and to them the people from where they came from are living in the past

Explanation:

1. The tension on a rope suspending a 15.0 kg box from the ceiling is 147 N, acting in the opposite direction to counterbalance the weight of the box.

2. To overcome the friction force from the road and maintain a constant velocity, an applied force of 2650 N must be exerted on the car.

1. To determine the tension on the rope when a 15.0 kg box is suspended from the ceiling, we analyze the forces at play. When the box is stationary, the net force acting on it is zero.

Let's consider the tension in the rope as T. The weight of the box can be calculated using the equation W = mg, where m represents the mass of the box, and g is the acceleration due to gravity.

Weight of the box = 15.0 kg * 9.8 m/s² = 147 N

Since the box is in equilibrium, the tension in the rope must balance the weight of the box. Therefore:

T - 147 N = 0

Solving for T:

T = 147 N

2. When a 1510 kg car experiences a 2650 N friction force from the road, we need to find the force that must be applied to the car to overcome this friction and maintain constant velocity.

The force of friction is given by the equation \(F_f_r_i_c_t_i_o_n\) = μ * N, where μ is the coefficient of friction and N is the normal force. In this case, we assume the friction force is the maximum static friction force, which is μ * N.

Since the car is experiencing a friction force of 2650 N, we have:

\(F_f_r_i_c_t_i_o_n\) = 2650 N

The normal force (N) is equal to the weight of the car (mg), where g is the acceleration due to gravity.

Weight of the car = 1510 kg * 9.8 m/s² = 14818 N

Since the car is at constant velocity, the applied force must balance the friction force:

Applied force - 2650 N = 0

Solving for the applied force:

Applied force = 2650 N

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The pit, from the initial dropping point, will hit the ground after traveling a horizontal distance of approximately 18.4 meters.

To find the time it takes for the pit to hit the ground, we use the equation that relates the initial vertical velocity, acceleration due to gravity, and displacement. h = (1/2) * g * t^2. Where h is the initial height (1.0 m) and g is the acceleration due to gravity (approximately 9.8 m/s^2). Solving for t, we find: t = sqrt((2 * h) / g). Next, we calculate the horizontal distance using the horizontal velocity and the time. distance = horizontal velocity * time. By substituting the given horizontal velocity of 18 m/s, we get the horizontal distance traveled by the cherry pit from its initial dropping point.

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A light pulse is a flash. Lasers and related devices have amazing potential for generating light pulses with very specific properties. There are various techniques for using lasers to generate nanosecond, picosecond and even femtosecond pulses.

Light energy is a form of kinetic energy that has the ability to make some kind of light visible to the human eye. Light is defined as a form of electromagnetic radiation emitted by hot objects such as lasers, incandescent bulbs, and the sun. Light contains photons, which are tiny packets of energy.

(a) Energy of photon = planck' constant x fequency

                                    =6.6x10^-34 x4.69 x10^14 J

(b) Energy of 5.0x10^17 photons = 6.6x10^-34 x 4.69x10^14 x5.0x10^17

The energy of a single photon is: hν or = (h/2π)ω where h is Planck's constant: 6.626 x 10-34 Joule seconds. Photons in visible light contain about 10-19 Joules per second in the beam.

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