What is the velocity of a 0. 400-kg billiard ball if its wavelength is 5. 1 cm cm (large enough for it to interfere with other billiard balls)?

Answer:

friction

air drag

every thing that opposes the motion affects kinetic energy

Explanation:

kinetic energy is a energy which is increase with increase in motion and potential energy is energy stored while the object is at rest

potential energy ∝ 1/(kinetic energy)

as kinetic energy increases potential energy decreases

The displacement of ramp is 3.288 m and the ramp makes an angle of Ф = 8.7° with the horizontal.

Displacement [x] of an object is the length of the straight line joining the initial and final position of the object. Mathematically, if the velocity of the body is [v] m/s at an instant of time, then displacement can be written as-

v = dx /dt

dx = vdt

∫dx = ∫vdt

x = vt

Given is an inclined ramp that has a height of 0.50 m and a horizontal distance (run) of 3.25 m.

We can find the displacement of ramp using the Pythagoras theorem. The base will be equal to horizontal distance and height will be equal to vertical distance. The length of the hypotenuse will be equal to that of displacement. Therefore -

[h]² = [b]² + [p]²

[h]² = (0.5)² + (3.25)²

[h]² = 10.8125

[h] = √10.8125

[h] = 3.288 m

Direction can be calculated using the tangent function as follows.

tan Ф = [p]/[b]

tan Ф = (0.5)/(3.25)

Ф = tan⁻¹ (0.5)/(3.25)

Ф = 8.7°

Therefore, the displacement of ramp is 3.288 m and the ramp makes an angle of Ф = 8.7° with the horizontal.

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Answer:

900 J

Explanation:

0.5 x 50= 25 x 6^2= 900 J

Answer:

Using a Compass to Identify Magnet North Pole

Watch carefully at where the compass needle points. The point that normally points to the north pole of Earth should point to one end of the magnet. That end is actually the South pole of the magnet

Explanation:

Hope it help you

Plz mark my answer brainliest✍️✍️

Answer:

175kg.m/s

Explanation:

Momentum= mv 70kg*2.5m/s

Gravitational force between two masses m, and m, is represented as F = Gm₂ m₂ / r^2 where r = xi+yj + zkG, m, m₂ are nonzero constants and let's assume that I = 0

a) Calculation:For F = Gm₂ m₂ / r^2.

Using r = xi+yj + zk and let r^2 = x^2 + y^2 + z^2∴ F = Gm₂ m₂ / (x^2 + y^2 + z^2), Where G, m, m₂ are nonzero constants. Divergence of F = ∇ · F= 1/r^2(d/dx(r^2Fx) + d/dy(r^2Fy) + d/dz(r^2Fz))= 1/r^2(d/dx(r^2Gm₂ m₂ x/(x^2+y^2+z^2)^(3/2)) + d/dy(r^2Gm₂ m₂ y/(x^2+y^2+z^2)^(3/2)) + d/dz(r^2Gm₂ m₂ z/(x^2+y^2+z^2)^(3/2)))= 1/r^2(d/dx(r^2Gm₂ m₂ x/(x^2+y^2+z^2)) * (x^2+y^2+z^2)^(3/2) + d/dy(r^2Gm₂ m₂ y/(x^2+y^2+z^2)) * (x^2+y^2+z^2)^(3/2) + d/dz(r^2Gm₂ m₂ z/(x^2+y^2+z^2)) * (x^2+y^2+z^2)^(3/2))= 1/r^2(Gm₂ m₂ [2x(x^2+y^2+z^2)-3x^2]/(x^2+y^2+z^2)^(5/2) + Gm₂ m₂ [2y(x^2+y^2+z^2)-3y^2]/(x^2+y^2+z^2)^(5/2) + Gm₂ m₂ [2z(x^2+y^2+z^2)-3z^2]/(x^2+y^2+z^2)^(5/2))= 1/r^2(Gm₂ m₂ [(2x^2+2y^2+2z^2-3x^2)/(x^2+y^2+z^2)^(3/2)] + [2x^2+2y^2+2z^2-3y^2]/(x^2+y^2+z^2)^(3/2)] + [2x^2+2y^2+2z^2-3z^2]/(x^2+y^2+z^2)^(3/2)])= 1/r^2(Gm₂ m₂ [x^2+y^2+z^2]/(x^2+y^2+z^2)^(3/2))= 0.

Curl of F = ∇ × F= i(d/dy(Fz) - d/dz(Fy)) - j(d/dx(Fz) - d/dz(Fx)) + k(d/dx(Fy) - d/dy(Fx))= i(d/dy(Gm₂ m₂ z/(x^2+y^2+z^2)) - d/dz(Gm₂ m₂ y/(x^2+y^2+z^2))) - j(d/dx(Gm₂ m₂ z/(x^2+y^2+z^2)) - d/dz(Gm₂ m₂ x/(x^2+y^2+z^2))) + k(d/dx(Gm₂ m₂ y/(x^2+y^2+z^2)) - d/dy(Gm₂ m₂ x/(x^2+y^2+z^2)))= i(Gm₂ m₂ [-2xz]/(x^2+y^2+z^2)^(5/2)) - j(Gm₂ m₂ [-2yz]/(x^2+y^2+z^2)^(5/2)) + k(Gm₂ m₂ [(x^2+y^2-2z^2)]/(x^2+y^2+z^2)^(5/2))

b) Calculation:The line integral of F along a curve C can be evaluated by the following formula∫C F.dr = ∫∫ ( ∇ x F) ds, Where r is the position vector of the curve, s is the scalar parameter representing the curve, and the integral is evaluated from the initial point to the final point.

Using the curl of F obtained in part a) and for the surface with ∂S as C∫C F.dr = ∫∫ ( ∇ x F) ds= ∫∫ curl(F) ds= ∫∫ (-2xz i -2yz j + (x^2+y^2-2z^2)k) ds...[1]

Let's consider the surface S as a plane perpendicular to the z-axis of the form ax+by+c=0 and the curve C as the intersection of the plane and the cylinder x^2 + y^2 = a^2.

Let's choose the unit normal to the surface S as k (along the z-axis).

The curl of F is a vector field perpendicular to the plane and along the direction of k.

Thus the integral can be written as∫C F.dr = ∫∫ ( ∇ x F) . k ds= ∫∫ (x^2+y^2-2z^2) ds...[2]

Now let's evaluate the integral over the given plane ax+by+c=0. We can write x = t, y = (c-at)/b and z = 0, where t is the scalar parameter along the line of intersection of the plane and the cylinder (x^2 + y^2 = a^2).

Since the curve C is on the cylinder of radius a, we have x^2+y^2 = a^2 ⇒ t^2+(c-at)^2/b^2 = a^2On solving for t, we have t = (bc±ab √(a^2-b^2-c^2))/[a^2+b^2].

Substituting t in x and y, we get the curve C in the x-y plane as a function of the scalar parameter s asx = (bc±ab √(a^2-b^2-c^2))/[a^2+b^2]y = (c-at)/b= (c-(bc±ab √(a^2-b^2-c^2))/[a^2+b^2])/b.

Now we can evaluate the integral over the curve C, which is along the intersection of the plane and the cylinder.

Integral over C (x^2+y^2-2z^2) ds= ∫t₁^t₂ [(t^2 + [(c-at)^2]/b^2 - 2(0)^2)^(1/2)] dt= ∫t₁^t₂ [(a^2-b^2-c^2)t^2+2bc(c-at)+b^2c^2-a^2b^2]^(1/2) dt.

Now we can choose the value of t₁ and t₂ such that the square root in the integrand is minimized (so that the integral is path-independent).

This can be done by choosing the value of t that gives the minimum value of (a^2-b^2-c^2)t^2+2bc(c-at)+b^2c^2-a^2b^2 over the range of t from t₁ to t₂.

On differentiation with respect to t and equating to 0, we get the value of t = bc/(a^2+b^2).

Substituting this value of t in the integrand, we get the minimum value of the square root in the integrand to be |c| √(a^2+b^2)/|b|.

Thus the integral over C is given by∫C F.dr = ∫∫ (-2xz i -2yz j + (x^2+y^2-2z^2)k) ds= ∫∫ (x^2+y^2-2z^2) ds= ∫t₁^t₂ |c| √(a^2+b^2)/|b| dt= |c| √(a^2+b^2)/|b| (t₂-t₁).

Now we can see that the integral is path-independent as it depends only on the end points t₁ and t₂ and not on the path taken to reach them.

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Answer:

Explanation:

always accerelation it measures in m/second sguared.

that means the parameter over another

Explanation:

that is when you say a parameter is inversely proportional to another it means what ever happens to the first parameter the opposite happens to the other parameter

The energy required to heat 40.7 g of water (H2O) from -10°C to 70°C can be calculated as follows;Mass of water = 40.7 gTemperature change = 70 - (-10) = 80 °C Specific heat of ice = 2.06 J/g °CSpecific heat of water = 4.18 J/g °CHeat of fusion of water = 334 J/gAt first, we have to heat the ice from -10°C to 0°C using the formula;

q = mcΔTwhere m is the mass, c is the specific heat, and ΔT is the temperature change. For ice, c = 2.06 J/g °C, and the temperature change is 0 - (-10) = 10°C;

q1 = (40.7 g)(2.06 J/g °C)(10°C) = 839.42 J

This amount of heat energy is needed to bring the ice to its melting point. The amount of heat required to melt the ice at 0°C can be determined using the formula; q2 = mLfwhere Lf is the heat of fusion of ice, which is 334 J/g;

q2 = (40.7 g)(334 J/g) = 13590.8 J

Now, we have 40.7 g of water at 0°C.

To heat this water to 70°C, we use the formula;

q3 = mcΔT

where m is the mass, c is the specific heat, and ΔT is the temperature change. For water, c = 4.18 J/g °C, and the temperature change is 70 - 0 = 70°C;

q3 = (40.7 g)(4.18 J/g °C)(70°C) = 12123.94 J

The total energy required is;

\(q_total = q1 + q2 + q3 = 839.42 J + 13590.8 J + 12123.94 J = 26554.16 J\)

Thus, the energy required to heat 40.7 g of water (H2O) from −10∘C to \(70∘C is 2.66 x 10^4 J or 26.6 kJ\).

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Estimate the flux of a drug through a cell membrane by diffusion, we need to use Fick's law of diffusion and know the concentration gradient and thickness of the lipid bilayer, as well as the diffusion coefficient of the drug.

To estimate the flux (mg/cm2 s) by diffusion of a drug through a cell membrane, we need to use Fick's law of diffusion.

The equation for Fick's law of diffusion is:

J = -D*(ΔC/Δx)

where J is the flux (mg/cm2 s), D is the diffusion coefficient (cm2/s), ΔC is the concentration gradient (ng/cm3), and Δx is the thickness of the lipid bilayer (cm).

First, we need to convert the concentration units from ng/ml to ng/cm3. Since 1 ml = 1 cm3, the concentration of the drug on the outside of the cell is 1 ng/cm3. The concentration on the inside of the cell is 0 ng/cm3.

Next, we need to calculate the diffusion coefficient of the drug through the lipid bilayer. This value depends on the properties of the drug and the lipid bilayer, such as their molecular weight, size, charge, and solubility. Without this information, we cannot provide an accurate estimate of the diffusion coefficient.

Assuming a diffusion coefficient of 10^-5 cm2/s, we can now calculate the flux of the drug through the lipid bilayer:

J = -D*(ΔC/Δx)
J = -(10^-5 cm2/s)*(1 ng/cm3)/(10 nm)
J = -10^-6 mg/cm2 s

Therefore, the estimated flux of the drug through the cell membrane is -10^-6 mg/cm2 s. Note that the negative sign indicates that the drug is diffusing from high concentration to low concentration, as expected for passive diffusion.

In summary, to estimate the flux of a drug through a cell membrane by diffusion, we need to use Fick's law of diffusion and know the concentration gradient and thickness of the lipid bilayer, as well as the diffusion coefficient of the drug.

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The prove of  Angle XYZ- Angle NYM is given below:

Note that from the image given;

Since ∠XYZ is said to be congruent to ∠NYM it can be proven by the use of the reflexive property.

The reflexive property is one that informs that any shape is regarded congruent to itself.

Since ∠NYM has a different way to call ∠XYZ that uses a different vertexes, but the sides are made up of the two angles which are said to be the same.

Therefore , ∠XYZ ≡ ∠NYM are proved by the reflexive property.

Since ΔXYZ is the same with Δ NYM, it can be proven by the AA (angle-angle) similarity theorem.

We have 2 angles Δ XYZ and Δ NYM:

Note that ∠YXZ ≡ ∠YNM

              ∠XYZ ≡ ∠NYM

So,  ΔXYZ is said to be the same to ΔNYM and it is proven by the AA similarity theorem.

Therefore, The prove of  Angle XYZ- Angle NYM is given below:

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Answer:

1. parrael

2. corresponding angles theorem

3. NYM

4. AA

Explanation:

just took it

The Earth, Sun, and Moon systems create several patterns, including the day and night cycle, seasons, lunar phases, tides, and solar and lunar eclipses. These patterns have been studied and understood by scientists for centuries and have played an important role in shaping our understanding of the universe and our place in it. Understanding these patterns is essential in comprehending the workings of the universe and the impact they have on our planet.

The Earth, Sun, and Moon systems create several patterns, including:

Day and Night cycle: The rotation of the Earth on its axis causes the alternating cycle of day and night as different parts of the planet face towards or away from the Sun.

Seasons: The tilt of the Earth's axis (23.5 degrees) causes the seasons to change as different parts of the planet receive varying amounts of sunlight throughout the year.

Lunar Phases: The Moon orbits the Earth, causing it to appear to change shape in the sky as different amounts of sunlight reflect off its surface.

Tides: The gravitational pull of the Moon and the Sun on the Earth's oceans creates a regular cycle of high and low tides.

Solar and Lunar Eclipses: The alignment of the Earth, Sun, and Moon can cause a shadow to be cast on one celestial body by another, resulting in either a solar or lunar eclipse.

These patterns have been studied and understood by scientists for centuries and have played an important role in shaping our understanding of the universe and our place in it.

Therefore, The day and night cycle, seasons, lunar phases, tides, and solar and lunar eclipses are just a few of the patterns that the Earth, Sun, and Moon systems produce. Scientists have been analyzing and studying these patterns for centuries, and they have had a significant impact on how we view the cosmos and our place in it. Knowing these patterns is crucial to understanding how the cosmos functions and how they affect our world.

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Answer:

4.26 m/s

Explanation:

h = 0.925

v = 0

u = ?

v = u^2 - 2gh

0 = u^2 - 2gh

u = sqrt 2gh

= sqrt 2*9.8*0.925

= 4.258

= 4.26

Answer:

Explanation:

The force acting to the right of the body is acting in the positive x direction while the force acting to the left of the body is acting in the negative x direction.

If a force of 12N acts to the left on a body and a force of 16 N acts to the right, force acting to the left will be -12N while that acting to the right will be +16N.

The resultant force acting on the bod will be the sum of the two forces.

Resultant = -12N+16N

Resultant = 4N

The direction of the resultant force will be towards the right since the resultant is a positive value.

The graph that corresponds to 0.1 s in one complete cycle is graph D.

option D is the correct answer.

The period of a wave is the time for a particle on a medium to make one complete vibrational cycle. Period, being a time, is measured in units of time such as seconds, hours, days or years.

Also, the period of a wave is the amount of time it takes for a wave to complete one wave cycle or wavelength.

From the given parameter, the coil rotates 10 times in one second. The period of the coil is calculated as;

Period = 1 s / 10

Period = 0.1 s

From the graphs, the only option that has one complete cycle in one second is option D.

Check option D, half cycle is 0.05 s and one full cycle is 0.1 s.

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Answer:

30N is the correct answer

Answer:

They have mass is always true.

Answer:

“they have mass” because if they don’t have mass they can’t exert force even if they have speed if they have no mass they can’t do anything or exert force

Explanation:

\({ \purple{ \tt{Here \: is \: your \: answer...}}}\)

Umm it's quiet difficult to understand. But let us note down the given values.

\({ \green{ \tt{given : - }}}\)

\({ \red{ \tt{ λ = 5000 \times {10}^{ - 10} m}}}\)

\({ \red{ \tt{ λ = 5 \times {10}^{ - 7}m}}} \)

\({ \red{ \tt{ \beta = 0.6cm = 6 \times {10}^{ - 3} m}}}\)

\({ \red{ \tt{D' = \frac{D}{2}}}}\)

\({ \red{ \tt{ \beta' = 0.003m = 3 \times {10}^{ - 3}m}}}\)

Answer:

324 J

Explanation:

KE= 1/2 m*v^2

1/2*8*9^2

324 joules (=^w^=) woof woof

During the human ovarian cycle, ovulation is stimulated by d. an increase in LH (luteinizing hormone) secretion. This increase, known as the LH surge, triggers the release of a mature egg from the ovary, allowing for the possibility of fertilization.

During the human ovarian cycle, ovulation is stimulated by an increase in LH secretion. This surge in LH secretion causes the follicle to rupture and release the mature egg. It is important to note that FSH (follicle-stimulating hormone) plays a role in follicle development and estrogen production leading up to ovulation, but it is the surge in LH that triggers the actual release of the egg.

                                    Progesterone secretion increases after ovulation and helps prepare the uterus for potential implantation of a fertilized egg. Estradiol concentration fluctuates throughout the cycle, with high levels leading up to ovulation and lower levels after ovulation.

During the human ovarian cycle, ovulation is stimulated by d. an increase in LH (luteinizing hormone) secretion. This increase, known as the LH surge, triggers the release of a mature egg from the ovary, allowing for the possibility of fertilization.

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The Soviet Union (now Russia) was the first country to put a manned spacecraft into orbit.

On April 12, 1961, Soviet cosmonaut Yuri Gagarin made history by becoming the first human to orbit the Earth aboard the Vostok 1 spacecraft. This groundbreaking achievement was a result of the Soviet space program's efforts to develop the necessary technology and launch capabilities.

Gagarin's successful orbit marked a significant milestone in space exploration and demonstrated the Soviet Union's prowess in the space race with the United States.

The mission not only showcased Soviet technological advancements but also symbolized a major leap forward in human exploration of space, inspiring future generations of astronauts and scientists worldwide.

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Answer:

8 seconds = 72cm

3 seconds = 36cm

6 seconds = 96cm

Explanation:

lab assignment i just took.

Speed is the rate of distance over time. The speed of the cart is as follows:

Let:

\(s \to\) speed

\(d \to\) distance

\(t \to\) time

After 8 seconds

For low fan speed; the distance (d) at 8 seconds is:

\(d =576cm\)

Speed (s) is calculated using:

\(s = \frac dt\)

\(s = \frac{576cm}{8s}\)

\(s = 72cms^{-1}\)

Hence, the speed after 8 seconds is \(72cms^{-1}\)

After 3 seconds

For medium fan speed; the distance (d) at 3 seconds is:

\(d = 108cm\)

The speed (s) is :

\(s = \frac dt\)

\(s = \frac{108cm}{3s}\)

\(s = 36cms^{-1}\)

Hence, the speed after 3 seconds is \(36cms^{-1}\)

After 6 seconds

For high fan speed; the distance (d) at 6 seconds is:

\(d = 108cm\)

The speed (s) is :

\(s = \frac dt\)

\(s = \frac{576cm}{6s}\)

\(s = 96cms^{-1}\)

Hence, the speed at 6 seconds is \(96cms^{-1}\)

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The image shown in the question is a clear depiction of a generator.

A generator is an equipment that has to do with the production of electricity by the use of electromagnetic induction. The generator has split rings that make contact with the exterior.

The image shown in the question is a clear depiction of a generator.

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Answer:

Explanation:

C. Generator

Answer:

- pendulum use to determine acceleration

Explanation:

by calculating need to understand first the problem

the length is measure to be 2s

the lenght is also 2

2 obtainer on invistigation the most nearly is 8.

Factors influencing incoming solar radiation include solar angle, atmospheric conditions, and surface characteristics.

Several factors influence the amount of solar radiation reaching Earth's surface. The solar angle, determined by the Earth's tilt and position in its orbit, affects the intensity of radiation. Atmospheric conditions such as cloud cover, aerosols, and pollution can scatter or absorb radiation. Surface characteristics, such as albedo (reflectivity) and vegetation, also influence the amount of incoming radiation.

The composition of incoming solar radiation consists primarily of visible light, ultraviolet (UV) radiation, and infrared (IR) radiation. Visible light is the range of wavelengths perceived by human eyes. UV radiation has shorter wavelengths and can be harmful to living organisms. IR radiation has longer wavelengths and carries heat energy.

Once solar radiation enters the atmosphere, several processes occur. Approximately 30% of incoming radiation is reflected back into space by clouds, atmospheric particles, and the Earth's surface. About 20% is absorbed by the atmosphere, including gases like ozone and water vapor. The remaining 50% reaches the Earth's surface, where it is absorbed by land, water, and vegetation, contributing to various physical and biological processes such as heating the Earth's surface, driving weather patterns, and supporting photosynthesis.

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Answer:

Yes

Explanation:

Velocity is a vector quantity, meaning it has size and direction, as opposed to speed, a scalar quantity which only has size.

An example is speed may be 30km/h, and an example of velocity is 30km/h East.

Therefore two people can have the same speed and different velocities because they can be traveling in different directions.

For example, you and your friend could be doing shuttles together but you started at one wall and they started at the other, so even though you are running at the same speed, you always have different velocities because they are running in the opposite direction as you.

Hope this helped!

Answer:  metals, non metals and semi metals

Explanation:

Answer:

\(4.0\; {\rm m}\).

Explanation:

The speed \(v\) of a wave is the distance the wave travels in unit time.

The frequency \(f\) of a wave is the number of cycles completed in unit time. Note that \(1\; {\rm Hz} = 1\; {\rm s^{-1}}\). Thus, for the wave in this question, frequency would be \(f = 85\; {\rm Hz} = 85\; {\rm s^{-1}}\).

The wavelength \(\lambda\) of the wave is the distance travelled in each cycle of the wave. To find wavelength, divide the speed of the wave (distance travelled in unit time) by the frequency of the wave (number of cycles included in that much distance.)

\(\begin{aligned}\lambda &= \frac{v}{f} \\ &= \frac{340\; {\rm m\cdot s^{-1}}}{85\; {\rm s^{-1}}} \\ &\approx 4.0\; {\rm m}\end{aligned}\).