A diagram shows the velocity vector for an object in uniform circular motion. Why is the vector tangential to the circle?

A. The vector shows the path the object would follow if the net force acting on it stopped.
B. The vector indicates the direction of the force on the object.
C. The vector shows how the object pulls against the centripetal force.
D. The vector approximates the curved path at that point.

Answer:

An egg with a thick shell.

Explanation:

Hope this helps.

Answer:

Explanation:

Discussion

The ones that are certain are

If you have a normal, and the player slides into 2nd, and stops (which he must before he is tagged), then there must be friction involved. There must be gravity, or he would keep going up.

I don't think there is tension. There might be some Air Resistance, but that force is very tiny. Don't be surprised if you answer includes Air Resistance, but I won't try it to begin with.

Answer:

he can run 2m in 1 sec

Explanation:

20/10=2

When the difference in energy is small, the wavelength of the photon is large and  if the difference in energy is large, the photon's wavelength is short.

In quantum mechanics, when an electron transitions from a higher energy level to a lower one, it emits a photon, and when an electron absorbs a photon, it transitions from a lower energy level to a higher one. The energy of the photon is determined by the difference in energy between the two levels involved, which is also proportional to the frequency (f) and inversely proportional to the wavelength (λ) of the photon.

∆E = hf = hc/λ where h is Planck's constant and c is the speed of light. Keeping the ending level at 2 and trying different starting orbits, the difference in energy will be smaller if the starting orbit is closer to the ending orbit. As a result, the photon emitted or absorbed will have a lower energy, lower frequency, and longer wavelength.

When the difference in energy is small, the wavelength of the photon is large. As a result, the photon's energy and frequency are lower. Similarly, if the difference in energy is large, the photon's wavelength is short. This also means that the photon has a higher frequency and energy.

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The difference between sublimation and condensation is that

Sublimation is used to in a separation technique to separate sublime substance from a mixture while condensation is the

is the process where water vapor becomes liquid

This technique is used in chemistry to separate two or more constituents from a mixture

In conclusion, sublimation differs from condensation because sublimation is used to in a separation technique to separate sublime substance from a mixture while condensation is the

is the process where water vapor becomes liquid

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even though the centripetal force does no work, you are expending energy and doing work to keep the object in motion.

In Investigation 1, when you swing an object in a uniform horizontal circle on a rope over your head, the centripetal force does not do any work. The centripetal force is responsible for keeping the object moving in a circular path, constantly changing its direction but not its speed.

Work is defined as the transfer of energy that occurs when a force acts on an object and causes it to move in the direction of the force. In the case of circular motion, the centripetal force acts perpendicular to the direction of motion, towards the center of the circle. As a result, the work done by the centripetal force is zero because there is no displacement in the direction of the force.

However, while swinging the object, you are expending energy and doing work. You are providing the initial energy to set the object in motion and continuously exerting force to keep the object moving in a circular path. This work is done by the force you apply through the rope, which acts tangentially to the circular path.

The work you do transfers energy to the object, maintaining its circular motion. The energy you expend is eventually dissipated as heat due to various factors such as friction in the rope, air resistance, and internal friction within the object itself.

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First, the size of Jupiter means that it has a larger core than the other planets.

A larger core means more core particles are interacting to generate a stronger electrical current. The other factor is the speed of Jupiter's rotation. Jupiter's strong magnetic field is generated in Jupiter's thick layers of metallic hydrogen.

Its magnetic field creates a magnetosphere to surround the planet and shield it from solar winds. It traps more charged particles than Earth's. They create belts of intense radiation around Jupiter.

The strong magnetic field is produced by the rotation of the planet and convection in a metallic core. Because Jupiter is so large and spins so fast, its magnetic field is very strong. It is over 20,000 times stronger than Earth's.

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The width of the 20 m long conductor should be approximately 0.05 meters.

To determine the width of the conductor, we first need to find its cross-sectional area (A) using the given uniform current density (J) and current (I). The formula for this is:

A = I / J

Plugging in the given values:

A = 1.0 A / 400 A/m² = 0.0025 m²

Since the conductor has a square cross-section, its width (w) will be the square root of the cross-sectional area:

w = √A = √0.0025 m² ≈ 0.05 m

So, the width of the 20 m long conductor should be approximately 0.05 meters.

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The spaceship is traveling at 0.866 times the speed of light compared to the observers who noticed that it was length-contracted.

When a spaceship is observed to be length-contracted by a factor of 1/2, we can calculate the speed of the spaceship using the formula for length contraction:

L = L0 / γ,

where L0 is the rest length, γ is the Lorentz factor, and L is the observed length of the spaceship.

In this case, the length of the spaceship is contracted by a factor of 1/2, which means that

L = 1/2 L0.

We can substitute this into the formula for length contraction to get:

1/2 L0 = L0 / γ

Simplifying this equation, we get:

γ = 2

This means that the Lorentz factor is 2, which indicates that the spaceship is traveling at a speed of

v = c√(1-1/γ^2)

= c√(1-1/4)

= c√(3/4)

= 0.866c, where c is the speed of light.

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Answer: The law of conservation of linear momentum helps to understand the behavior of a Newton's cradle In a closed system. This law is nothing more than action and reaction.it can be used to predict the resulting direction and speed of motion of objects after they collide.

Explanation: Just as an example, when you play pool/8ball, the white play exerts force on the other balls causing them to break away.

hope this helps.

Answer:

a) Metres (m)

b) Kilogram (kg)

c) litres (l)

Answer:

b. able to travel through a vacuum.

Explanation:

The most distinguishing factor of an electromagnetic waves is that they are able to travel through a vacuum.

These waves do not require materials in a medium for propagation.

In non-restrictive clauses like a, commas may be used. You could also use parentheses and dashes.

A nonrestrictive clause provides additional information about something you have already mentioned in a sentence, but the information is not necessary to understand what you are referring to. Nonrestrictive clauses are typically introduced by which or who and are separated by commas.

An additional bit of information is provided by a nonrestrictive clause. When referring to a special person, thing, or event, it is typically a proper noun or a common noun. The additional information is indicated by the use of commas.

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The force constant of the spring is 200.696 N/m & The height the object achieves when the spring releases its energy is 2.5087 m

The spring constant is the force needed to stretch or compress a spring, divided by the compressive or expansive distance. It's used to determine stability or instability in the spring, and therefore the system it's intended for. we know,

F = kx

Therefore,

k = F/x

We also know that the force being exerted on the spring is equal to the mass of the object. Hence, F = mg = 5.13 * 9.8 N = 50.174 N and we know compression due to the mass is 0.25m. Therefore,

K = 50.174/0.25 N/m

K = 200.696 N/m

Therefore, The Spring Constant is 200.696 N/m

On release, the spring potential energy gets converted to kinetic energy. Hence, on release, the height attained by the object is given by:

h = \(1/2 kx^{2}\)

We know that k=200.696 N/m and x=0.25 m. Therefore the height is:

h = \(1/2 (200.696 N/m)(0.25 m)^{2}\)

h = 2.5087 m

Therefore, the force constant of the spring is 200.696 N/m & The height the object achieves when the spring releases its energy is 2.5087 m

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The wavelength of the given transverse wave is 8 cm and the amplitude is approximately 14 cm.

Wavelength of a transverse wave is the distance between two consecutive crests or troughs of the wave. Wavelength of a wave is inversely proportional to the  frequency and energy  of the wave.

The amplitude of a transverse wave is the distance from the base line to the top of the crest or to the bottom of the trough.It is directly proportional to the frequency of the wave.

For the given wave, the wavelength is 8 cm and the amplitude that is , the distance to the base line to the top of the peak is 14 cm.

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The frequency of the sound wave is 1.07 × 10⁹ Hertz

Wavelength is simply the distance over which the shapes of waves are repeated.

From the wavelength, frequency and speed relation,

λ = v ÷ f

Where λ is wavelength, v is velocity/speed and f is frequency.

Given that:

Plug values into the above formula.

λ = v ÷ f

f = v / λ

f = ( 343 m/s ) / ( 3.2 × 10⁻⁷ m )

f = 1.07 × 10⁹ Hz

Therefore, the frequency is 1.07 × 10⁹ Hz.

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Answer:

I would say d sry if im wrong

Explanation:

Answer:

330

Explanation:

Given,

Force ( F ) = 27.5 N

Distance ( s ) = 12 m

To find : Work ( W ) = ?

Formula : -

W = Fs

W = 27.5 × 12

W = 330 Nm

Hence,

330 Nm is the work required to carry a monkey of 8 N. a distance of 10 m.

Note : -

Nm is the unit of Work.

Joule ( J ) is also unit of work.

The average force required to stop the vehicle in a distance of 0.178 m  is 4951.7 N.

The average force is the force applied by an item traveling over a specific period of time at a defined rate of speed, or velocity. This velocity is not instantaneous or precisely calculated, as the word "average" indicates.

vf² = v₀² - 2 ax

The final carriage speed is zero (vf = 0)

0 = v₀² - 2ax

a = v₀² / 2x

a = 1.28²/(2× 0.178)

a = 4.602 m / s²

a = 4.6 m/s²    

We calculate the average force

F = ma

F = 1076 × 4.602

F = 4951.7 N

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The strength of gravity on Zarflax-beta-9z is 17 N/kg.

We can use the formula:

weight = mass x gravity

to determine the strength of gravity on Zarflax-beta-9z.

We know that the mass of the book is 3 kg and its weight is 51 N. So, we can rearrange the formula to solve for gravity:

gravity = weight / mass

gravity = 51 N / 3 kg

gravity = 17 N/kg

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Answer:

Because the Earth is EXTREMELY massive

Explanation:

The new magnitude of the force of attraction will be 6 times the original force of attraction

F = Gm₁m₂ / r²

F₁ = Gm₁m₂ / r²

F = Gm₁m₂ / r²

F₂ = G × 2m₁ × 3m₂ / r²

F₂ = 6Gm₁m₂ / r²

But

F₁ = Gm₁m₂ / r²

Therefore

F₂ = 6Gm₁m₂ / r²

F₂ = 6F₁

Thus, the new magnitude of the force of attraction will be 6 times the original force of attraction

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A high-energy transition state of hydrogen abstraction by chlorine leads to a more exothermic reaction compared to bromine.

An exothermic reaction is a reaction in which energy is released in the form of light or heat. Thus in an exothermic reaction, energy is transferred into the surroundings rather than taking energy from the surroundings as in an endothermic reaction.

A higher energy transition state of hydrogen abstraction by chlorine leads to a faster reaction compared to bromine.

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A higher energy transition state of hydrogen abstraction by chlorine leads to a slower reaction compared to bromine.

Explanation:

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Human activities can increase landslide chances because it is responsible for clear-cutting, mining and quarrying, bad agricultural practices, and construction activities.

Yes, in some cases, human activities can give to causing landslides. Many human-caused landslides can be kept away from or mitigated. They are usually a result of building roads and structures without adequate grading of slopes, badly planned alteration of drainage patterns and disturbing old landslides.

In the study area, landslides seriously threaten the safety of people's lives and things and endanger transportation infrastructures. huge rainfall, an earthquake, or a combination of both commonly trigger a landslide.

So we can conclude that Some human activities, especially road construction, farmland allowance for building construction, and agricultural reclamation.

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Answer:

don't  

Explanation:

The mass of the block is 4.5 kg that falls by 40m and work done is -1800J.

The work done is defined as the product of the displacement of an object and the component of the applied force which is in the direction of the object's displacement.

w=f × s

-1800=f×40

f=45 N

by Newton's 2nd law

F=ma

45=m×(10)

m=45÷10=4.5 kg

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Answer:

C. rollback

Explanation:

The retina of the eye is located inside the eye making it impossible for the retina to roll back. Only the eye itself can rollback.

Work done = Froce × distance

Now, keeping this formula in mimd, we can find the distance as follows;

= 1.56 = 300 × distance

= 1.56/300 = distance

= 156/30000 = distance

= 0.0052 m = distance

Lets convert it into cm so that you don't get troubled seeing it :)

= 1 m = 100cm

= 0.0052 × 100

= 0.52 cm

A) The period (T) will be approximately 2.6 s if the mass is doubled.

b) The period (T) will be approximately 1.3 s if the mass is halved.

c) The period (T) remains unchanged if the amplitude is doubled.

d) The period (T) remains unchanged if the spring constant is doubled.

For a mass-spring system undergoing simple harmonic motion, the period of oscillation is given by the formula:

T = 2π * √(m/k)

where T is the period, m is the mass of the block, and k is the spring constant.

Part A:Period (T) = 1.8 s, Mass (m) = 2m (doubled)

Using the formula:

T = 2π * √(m/k)

Substituting the given values:

1.8 = 2π * √(2m/k)

Solving for T:

1.8 / (2π) = √(2m/k)

Square both sides:

(1.8 / (2π))² = 2m/k

Simplifying:

(1.8²) / (4π²) = 2m/k

Solving for T:

T = (1.8² * k) / (4π² * 2m)

Calculating:

T ≈ (3.24 * k) / (12.57 * m)

Part B:

Period (T) = 1.8 s

Mass (m) = 0.5m (halved)

Using the formula:

T = 2π * √(m/k)

Substituting the given values:

1.8 = 2π * √(0.5m/k)

Solving for T:

1.8 / (2π) = √(0.5m/k)

Square both sides:

(1.8 / (2π))² = 0.5m/k

Simplifying:

(1.8²) / (4π²) = 0.5m/k

Solving for T:

T = (0.9² * k) / (4π² * 0.5m)

Calculating:

T ≈ (0.81 * k) / (12.57 * m)

In Part C, the period remains unchanged because the period of oscillation in simple harmonic motion is only dependent on the mass and spring constant, not the amplitude.

In Part D, the period also remains unchanged because the period of oscillation is independent of the spring constant.

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