This waterbottle has a mass of .5 kg. If the net force acting on the bottle is five and to the right what is the bottles acceleration (hint: use formula a=f/m

Answer:

 :-

\text{Average velocity}=\frac{\text{total distance}}{\text{total time taken}}Average velocity=total time takentotal distance

Explanation:

The average velocity for the first half of the swim 50/25.2 =1.98

??

Answer:

10 km/h

Explanation:

Skyler velocity after throwing the snowball  is 9.34 m/s in forward direction.

A body's velocity is the rate at which its displacement alters with respect to time. A vector quantity with both magnitude and direction is velocity. The meter/second unit of measurement for velocity.

Given that Skyler whose mass is 74.5 kg is moving across at 9.52 m/s while holding a 2.05 kg carefully packed snowball.

forward speed of the snowball = 15.9 m/s.

Let the Skyler velocity after throwing the snowball = v.

According to principle of conservation of momentum;

Total initial momentum = total final momentum

⇒ (74.5 + 2.05)9.52 = 74.5×v + 15.9×2.05

⇒ 74.5×v  = (74.5 + 2.05)9.52  - 15.9×2.05

⇒ v = 9.34 m/s.

Hence, velocity of the Skyler  is 9.34 m/s. in forward direction.

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Dispersion refers to the spreading or broadening of optical signals as they propagate through an optical fibre. Dispersion can occur due to chromatic dispersion and waveguide dispersion.

To minimize dispersion effects and improve the transmission characteristics of fibre optic systems, it is desirable to operate at a wavelength where the chromatic and waveguide dispersions cancel each other out, resulting in zero net dispersion. The zero-dispersion point in single-mode fibre was moved to 1,550 nm in order to minimize dispersion. At this wavelength, the chromatic dispersion (which causes different wavelengths of light to travel at different speeds) is zero, meaning that signals can be transmitted over longer distances without losing quality or clarity. This wavelength was chosen because it allows for the highest possible data transmission rates with minimal signal distortion.

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Answer:

I'm gonna go with compund

Answer: a mixture because it is made out of some other substances.

Explanation:

It will take an additional 7.33 minutes for the cake to cool from 200 degrees F to 90 degrees F after the initial 10 minutes of cooling.

To calculate how much longer it will take for the cake to cool to 90 degrees F, we need to first determine the rate at which the cake is cooling. We can do this by calculating the temperature difference between the cake and the room and dividing it by the time it takes for that temperature difference to occur.
In this case, the temperature difference between the cake and the room is 280 degrees F (350-70=280) when the cake is removed from the oven. After 10 minutes, the temperature difference is 130 degrees F (200-70=130). Therefore, the cake is cooling at a rate of 15 degrees F per minute (280-130=150 degrees F in 10 minutes; 150/10=15).
To determine how much longer it will take for the cake to cool to 90 degrees F, we need to calculate the time it takes for the temperature to drop from 200 degrees F to 90 degrees F. This is a temperature difference of 110 degrees F (200-90=110), so it will take approximately 7.33 minutes (110/15=7.33) for the cake to cool from 200 degrees F to 90 degrees F.

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Resolving power refers to the ability of a lens to distinguish between two closely spaced objects. It is determined by the wavelength of light and the numerical aperture of the lens.

Magnifying power, on the other hand, refers to the ability of a lens to enlarge the size of an object. It is determined by the focal length of the lens.
The term "parfocal" refers to a type of lens system where multiple lenses have the same focal point when the focus is adjusted. This means that when switching between different lenses, the focus remains the same, making it easier for the user to switch between lenses without losing focus.
Differentiating between the resolving power and magnifying power of a lens involves understanding their respective functions. Resolving power refers to the ability of a lens to distinguish between two closely spaced objects, or in other words, the clarity with which the lens can produce an image. Magnifying power, on the other hand, refers to the degree to which a lens can enlarge the image of an object.

The term "parfocal" is used to describe a set of lenses that, when interchanged on a microscope or other optical instrument, maintain their focus on the same object. This means that when you switch from one parfocal lens to another, only minimal adjustments to the focus are needed, allowing for a seamless transition between lenses with different magnifying powers.

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Resolving Power: It is the ability of a lens to separate or distinguish between closely spaced objects, reflecting the detail that can be seen with the lens.

Magnifying Power: It denotes how much larger an object appears through a lens compared to its actual size. High magnification doesn't necessarily mean better image quality.

Parfocal: This term refers to lenses that remain in focus even when the magnification or focal length changes. It enables swift adjustments in magnification without needing constant refocusing.

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Answer: B and E

Explanation:

Answer:

Newton's first law says that without external forces, your velocity doesn't change. Remember that velocity is both how fast you're going but also what direction you're going.

Normally, a car turns because the tires on the ground have traction so they have friction which allows them to change direction and turn. But on an icy highway, tires can't get much friction so it's really hard to turn.

Because the ice stops friction, a car can't get enough force to change direction and follow the curve, meaning it will try and stay going in the same direction, which is dangerous.

The force behind a river's flow is gravity. A river is a body of freshwater that flows downhill from its source, usually in mountains or hills, to a point where it meets a larger body of water like a lake or the ocean.

Rivers are long and constantly moving, and they are shaped by the surrounding landscape's features, like hills, valleys, and canyons. Gravity is the force that pulls everything towards the center of the earth, keeping everything in order. Every item, whether it's a person, a book, or a river, is pulled toward the ground by gravity. The force of gravity keeps the river moving downstream in the same direction. What is the relationship between gravity and a river's flow? The force behind a river's flow is gravity. The gravitational pull of the earth makes the water flow downhill, and it moves towards the sea because it follows the downhill path of least resistance. Gravity is what causes the river to move in the direction that it does, and it is also responsible for the energy that drives the movement. The steeper the slope of the land, the more the force of gravity acts on the water, and the faster it moves.

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The cart of the supermarket will move 3.99 m if the shopper places an 84 N child in cart and is pushing.

Given that,

Mass of the cart = 25.1 kg

Horizontal force = 13.3 N

It is pushed for 3.6 sec

Mass of the cart and child = Total force/ Acceleration = (25.1* 9.8 + 84)/9.8 =  33.67 kg

From the equations of motion, we know,

Initial velocity = 0

Time t = 4.5 s

Distance s = ut + 1/2* a* t² = 0 + 1/2* (13.3/33.67)* (4.5)² = 3.99 m

Thus, the cart will move for 3.99 m after placing the child.

The question is incomplete. The complete question is 'A shopper in a supermarket pushes a loaded cart with a horizontal force of 13.3 Newtons. The cart has a mass of 25.1 kg and is pushed for 3.60 seconds, starting from rest.'

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Answer:

Answer:

greater.

Explanation:

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Yes, they tell us that dark matter is spread throughout the galaxy, with most located at large distances from the galactic center.

While modified gravity theories exist, it is very difficult to build a modified gravity theory that is consistent with all the observations we have (ranging from the solar system to the cosmos as a whole) and not run afoul of the data. The dark matter hypothesis, in the meantime, though not without issues of its own, can nonetheless deal with galaxy rotation curves and also other challenges from cosmology.

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Answer:

this happens when the input force is greater than the output force

HOPE IT HELPED YOU...

The electrical potential difference between the plates is 40 V.

The magnitude of the electric field at point p = 5.0 × 104 N/C

Distance between the plates = 0.80 mm = 0.80 × 10-3 m

The formula used to find the electrical potential difference between the plates is,

V = Ed

Where,

V = electrical potential difference between the plates

E = electric field strength

d = distance between the plates.

Substituting the given values in the formula,

V = Ed= 5.0 × 104 N/C × 0.80 × 10-3 m= 40 V

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The set of two charges experiencing the strongest attraction is charges of +2 C and -2 C, separated by 1 m. Option A.

+2 C and -2 C is an attracting force because the charges are opposite

For Charges of +2 C and -2 C the force of attraction between two charges is directly proportinal to the product of their charges and inversely proportional to the square of the distnce between them.

The product of the charges is 2 × -2 = -4 C², and the square of the distance between them is 1² = 1 m².

The force of attraction between these two charges is -4 / 1 = -4 N.

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The brakes do

W = ∆K = 0 - 1/2 (1800 kg) (40 m/s)² = -1.44 MJ (megaJoules)

of work on the car to stop it. They apply a negative force since the braking opposes the car's forward displacement, so the car stops over a distance x such that

W = (-24.6 kN) x   ==>   x ≈ 58.5 m

Answer: ( 2nd ) ( 3 )

Explanation:

Answer: b) - 8.0 \(m/s^{2}\)

Explanation: Acceleration is a vector indicating a rate an object's velocity changes over time:

a = \(\frac{v}{t}\)

and its SI unit is \(m/s^{2}\)

For the minivan to stop, it takes a period of 0.5s:

a = \(\frac{4.0}{0.5}\)

a = 8.0 \(m/s^{2}\)

As a vector, acceleration has magnitude (8\(m/s^{2}\)) and direction. Since it is stopping, the minivan has a direction opposite to the other car, which means acceleration is negative. So: a = \(- 8.0 m/s^{2}\).

The correspondence principle holds for the particle in a box, as the ratio of the spacing between adjacent levels to the energy of the lower state approaches zero with increasing energy.

In the particle in a box system, the energy levels are given by the equation:

\(E = (n^2 * h^2)/(8 * m * L^2)\)

where n is the quantum number, h is the Planck's constant, m is the mass of the particle, and L is the length of the box.

To examine the correspondence principle, let's consider the spacing between adjacent energy levels. The difference in energy between two adjacent levels can be calculated by subtracting the energy of one level from the energy of the next level:

ΔE = E(n+1) - E(n)

\(= [(n+1)^2 * h^2)/(8 * m * L^2)] - [(n^2 * h^2)/(8 * m * L^2)]\)

\(= [2n + 1] * (h^2/(8 * m * L^2))\)

Now, let's calculate the ratio of the spacing between adjacent levels to the energy of the lower state:

Δ\(E/E(n) = ([2n + 1] * (h^2/(8 * m * L^2))) / [(n^2 * h^2)/(8 * m * L^2)]\)

\(= (2n + 1) / n^2\)

As n increases, the spacing between adjacent levels (ΔE) will increase. However, the ratio ΔE/E(n) can be simplified to \((2/n) + (1/n^2),\)which approaches zero as n increases. This means that as the energy increases (as n increases), the ratio ΔE/E(n) approaches zero, indicating that the behavior of the particle in a box system converges to the classical limit.

Therefore, we have shown that the correspondence principle holds for the particle in a box, as the ratio of the spacing between adjacent levels to the energy of the lower state approaches zero with increasing energy.

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Answer:

Explanation: We need to find the potential energy of a 2000kg mass that is raised 5.0m above the ground.

Potential energy:

Therefore the potential energy would be:

Answer:

b d c a

Explanation:

This question can be solved using the equations of motion. There are two scenarios where the equations of motion can be used. The first scenario is the free-fall motion of the piece of bread. The second scenario is the uniformly accelerated motion of the bird.

The acceleration of the bird is  "a = 26.13 m/s²".

First, we will calculate the time taken by the bread to fall 3 m. Using the second equation of motion for this free-fall motion:

\(h = v_it + \frac{1}{2}gt^2\)

where,

h = height fall = 3 m

vi = initial velocity = 0 m/s

g = acceleration due to gravity = 9.8 m/s²

t = time taken = ?

Therefore,

\(3\ m = (0\ m/s)t+\frac{1}{2}(9.8\ m/s^2)t^2\\t = \sqrt{\frac{(3\ m)(2)}{9.8\ m/s^2}}\\\\t = 0.78\ s\)

The bird took the same time to catch the bread. Now applying the second equation of motion to the bird's motion:

\(s = v_it + \frac{1}{2}at^2\)

where,

s = distance covered by the bird = 5 m + 3 m = 8 m

vi = initial velocity of the bird = 0 m/s

a = acceleration of the bird = ?

t = time taken = 0.78 s

Therefore, using these values we get:

\(8\ m = (0\ m/s)(0.78\ s)+\frac{1}{2}a(0.78\ s)^2\\\\a = \frac{16\ m}{(0.78\ s)^2}\)

a = 26.13 m/s²

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