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Describe the new framework for Alzheimer’s..

Answer:

Newton's Second laws of motion

Explanation:

This law states that the force acting on an object is directly proportional to its mass and the acceleration produced.

Newton's laws of motion provided a unified framework to understand and describe the motion of objects. They introduced the concept of force and explained how forces affect the motion of objects. Newton's laws revolutionized the field of physics by providing a solid foundation for studying and predicting the behavior of objects in motion.

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Answer:

MIRROR

Explanation:

Answer:

reflection of light is the bouncing back of light rats when it falls on a smooth surface or polish surface.

the work done to raise a 25kg book to a 1.5 m shelf is 367.5J and the potential energy of the book will be 367.5

Work done by a force is equal to the scalar product of the force applied and displacement. If d displacement happens on applying a force F, then work done, W by the force is

W = F. d

given:

mass, m = 25 kg

height, d = 1.50 m

work has to be done against the weight of the book, F = mg

work done W = F. d

W = mgd

W = (25) ×(9.8)×(1.50)

W = 367.5 J

This work is stored as the potential energy of the book.

Therefore, the work done to raise a 25kg book to a 1.5 m shelf is 367.5J and the potential energy of the book will be 367.5J

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Answer:

B aluminum

Explanation:

Because aluminum loses 3 types of electrons and it donates it to fluorine.

Answer: Most likely purple

Explanation:

Answer:

Purple?

Explanation:

I'm confused what you are asking.

Answer:

H1 = V t1 - 1/2 g t1^2      where upward is chosen as positive

H2 = -V t2 - 1/2 g t2^1     second stone thrown downwards

V t1 - 1/2 g t1^2 = -V t2 - 1/2 g t2^2

V (t1 + t2) = 1/2 g (t1^2 - t2^2)

V = 1/2 g (t1 - t2)

t2 = 2 V / g = 96 / 9.8 = 9.8 sec

Check:

One can also note the stone 1 will return to the starting point with a time delay of V / g * 2 which is 96 / 9.8 = 9.8 sec because the time for stone 1 to go to zero is 48 / 9.80 = 4.90 sec when its velocity reaches zero

Approximately 9.8 seconds when rounded to one decimal place. Therefore option F is correct.

Calculate the time it takes for the first stone to hit the street (t1) and the time it takes for the second stone to hit the street (t2).

For the first stone (thrown straight down):

Using the equation of motion:

\(\rm \[ d = \frac{1}{2} g t_1^2 \]\)

where:

d = distance traveled (height of the building)

g = acceleration due to gravity = \(\rm 9.8\ m/s^2\) (downward)

Since the stone is thrown from the top of the building, the distance traveled (d) is equal to the height of the building.

Now, let's find t1:

\(\[ h = \frac{1}{2} g t_1^2 \]\\\ \\t_1^2 = \frac{2h}{g} \]\\\\\ t_1 = \sqrt{\frac{2h}{g}} \]\)

For the second stone (thrown straight up):

The initial velocity of the second stone is also 48.0 m/s, but it is directed upward. We can use the equation of motion for upward motion:

\(\rm \[ v = u - gt_2 \]\)

where:

v = final velocity = 0 m/s (at the peak of the motion, the velocity becomes 0)

u = initial velocity = 48.0 m/s (upward)

g = acceleration due to gravity = 9.8 \(\rm m/s^2\) (downward)

Now, let's find t2:

\(\[ 0 = 48.0 - 9.8t_2 \]\\\\\ t_2 = \frac{48.0}{9.8} \]\\\\\ t_2 = 4.898 \]\)

Since the second stone takes time \(t_2\) to reach the peak and another time \(t_2\) to fall back down, the total time before the second stone hits the street is \(\( 2 \times 4.898 \)\).

\(\[ t_{\text{total}} = 2 \times 4.898 \]\\\ t_{\text{total}} = 9.796 \]\)

The correct answer is approximately 9.8 seconds (F) when rounded to one decimal place.

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The charge on the metal ball is 168 nC. with electric field strength 1.7 cm from the surface of a 10-cm-diameter metal ball is \(6.0*10^{4}\) N/C.

The electric field strength 1.7 cm from the surface of a 10-cm-diameter metal ball is \(6.0*10^{4}\) N/C. The formula for the electric field is given by: E = kQ/r²

Where: k is the Coulomb's constant Q is the charge on the metal ball r is the distance between the point of observation and the center of the sphere. Electric field strength is given as E = \(6.0*10^{4}\) N/C

diameter of the metal ball = 10 cm

radius of the metal ball = 5 cm (as diameter = 2r)

r = 1.7 cm

= \(8.99 * 10^{9}\) Nm²/C².

Putting the values in the above formula:

E = kQ/r²

=> \(6.0*10^{4}\) N/C

= \(8.99 * 10^{9}\)

Nm²/C² * Q/(0.017 m)²

=> Q = \(8.99 * 10^{9}\) Nm²/C² × \(6.0*10^{4}\) N/C × (0.017 m)²

Q = \(1.68 * 10^{-7}\) C

= 168 nC

The formula for the electric field is given by E = kQ/r² Electric field strength is given as

E = \(6.0*10^{4}\) N/C

diameter of the metal ball = 10 cm

radius of the metal ball = 5 cm (as diameter = 2r)

r = 1.7 cm

= \(8.99 * 10^{9}\) Nm²/C²

The formula for electric field strength is applied: Putting the values in the formula, it is found that Q is \(1.68 * 10^{-7}\) C or 168 nC.

The charge on the metal ball is 168 nC.

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Answer: Different types of fuels have varying compositions and release different amounts of pollutants when burned. Here are some common types of fuels and the pollutants associated with them:

Fossil Fuels:

a. Coal: When burned, coal releases pollutants such as carbon dioxide (CO2), sulfur dioxide (SO2), nitrogen oxides (NOx), and particulate matter (PM).

b. Petroleum (Oil): Burning petroleum-based fuels like gasoline and diesel produces CO2, SO2, NOx, volatile organic compounds (VOCs), and PM.

Natural Gas:

Natural gas, which primarily consists of methane (CH4), is considered a cleaner-burning fuel compared to coal and oil. It releases lower amounts of CO2, SO2, NOx, VOCs, and PM.

Biofuels:

Biofuels are derived from renewable sources such as plants and agricultural waste. Their environmental impact depends on the specific type of biofuel. For example:

a. Ethanol: Produced from crops like corn or sugarcane, burning ethanol emits CO2 but generally releases fewer pollutants than fossil fuels.

b. Biodiesel: Made from vegetable oils or animal fats, biodiesel produces lower levels of CO2, SO2, and PM compared to petroleum-based diesel.

Renewable Energy Sources:

Renewable energy sources like solar, wind, and hydropower do not produce pollutants during electricity generation. However, the manufacturing, installation, and maintenance of renewable energy infrastructure can have environmental impacts.

It's important to note that the environmental impact of a fuel also depends on factors such as combustion technology, fuel efficiency, and emission control measures. Additionally, advancements in clean technologies and the use of emission controls can help mitigate the environmental impact of burning fuels.

Answer:

thecool me

Explanation:

The experimental evidence led to the development of have gathered new evidence. One of the atomic models this atomic model from the one before it is the colors of light emitted from heated atoms had very specific energies.

As scientific knowledge about the structure of the atom has changed, so have models of the atom.

The Rutherford planetary model, which depicts electrons travelling around the nucleus like planets move around the sun in the solar system, is the direct precursor of the model illustrated in the figure attached.

This model was created as a result of the study of light hues released by heated atoms with highly particular energies.

The Bohr model of the atom is so named because Niels Bohr had a major role in developing it. The passage of electrons between energy levels caused the light hues released by heated atoms. Electrons are grouped in shells or energy levels.

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Answer:

the type of tomato plants used.

Explanation:

We consider only heating the green crystal sample to 110 °c to dehydrate is we want the 3 molecules of water to evaporate.

Furthermore, we need the oxalate to evaporate with the water . this type of condition only occurs when we heat the green crystal at  110 °c  due to the rise of boiling point in water being 100°c.

Oxalate refers to an anion that occurs naturally and is added to some foods for instance sodium oxalate and several esters like dimethyl oxalate. It is considered  a conjugate of oxalic acid.

The formula for oxalate is C₂O₄⁻²

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The output of a gate refers to the logical result or value produced by the gate based on its inputs. In the context of the statement regarding the NOR gate, the surprising fact is that any logical gate can be constructed using just NOR gates. This means that the NOR gate is functionally complete, as it can be used to build any other gate.

AND Gate: The AND gate produces an output of 1 (or true) only when both of its inputs are 1. Using NOR gates, an AND gate can be constructed as follows:

Input A NOR Input A = NOT A

Input B NOR Input B = NOT B

(NOT A) NOR (NOT B) = (A AND B)

Therefore, by combining two NOR gates, we can create an AND gate.

OR Gate: The OR gate produces an output of 1 if at least one of its inputs is 1. Using NOR gates, an OR gate can be constructed as follows:

Input A NOR Input A = NOT A

Input B NOR Input B = NOT B

(NOT A) NOR (NOT B) = (A OR B)

By combining two NOR gates, we can create an OR gate.

NOT Gate: The NOT gate (also known as an inverter) produces the complement of its input. Using a single NOR gate, we can create a NOT gate as follows:

Input A NOR Input A = NOT A

Therefore, a single NOR gate can function as a NOT gate.

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Explanation:

Glass is the best sound absorber material.

Answer:

because there isn't any gravity there

The bullet will hit 1.87 meters below the target.

Equations of motion are equations that describe the behavior of a physical system in terms of its motion as a function of time.

The first motion equation is v = u + at.

Second equation of motion: s = ut + 12 at2

Third equation of motion: v2 = u2 + 2as

Now for the given question,

Horizontal distance between the bullet and the target is 170 m.

The bullet's horizontal speed (u) is 275 m/s.

Time required to travel the horizontal distance  = \(Distance/velocity\)

Time taken (t) = \(170/275\)

t = 0.618 s

Now, in the vertical direction:

Initial velocity (u) = 0 m/s

Let the depth covered be h.

Time taken (T) = 0.618 s

Acceleration due to gravity (g) = 9.8 m/s^2

Now, using the seconds equation of motion:

\(h=ut+1/2 at^2\\h= 0+1/2 (9.8)(0.618)^2\\h=1.87 meters\)

Hence, the bullet will hit 1.87 meters below the target.

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Answer:

Eletromagnetic radiation which is also known as visible light.

Explanation:

Answer:

Gamma Ray's as they have the shortest wavelength and highest frequency in the electromagnetic Spectrum.

Answer: wood

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Answer:

The maximum range is 300% of the range of the projectile is projected at an angle of 9.74°.

None of the options are correct.

Explanation:

Normally, ignoring air resistance, for projectile motion, the range (horizontal distance travelled) of the motion is given as

R = (u² sin 2θ)/g

where

u = initial velocity of the projectile

θ = angle above the horizontal at which the projectile was launched

g = acceleration due to gravity = 9.8 m/s²

The range is maximum when θ = 45°

R when θ = 45° is

R = (u² sin 90°)/g = (u²/g)

We are then told that this maximum range is 300% of the value obtainable for the range at a particular angle

Maximum range = 3R

(u²/g) = 3(u² sin 2θ)/g

Sin 2θ = (1/3)

2θ = sin⁻¹ (1/3) = 19.47°

θ = (19.47°/2) = 9.74°

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The change in total energy of a closed system, apart from changes in kinetic and potential energies, is accounted for by the change in internal energy.

Internal energy includes the sum of all microscopic forms of energy within the system, such as the energy associated with the motion of particles and their interactions.

When there are no changes in kinetic or potential energies, any change in the total energy of the system can be attributed to the change in internal energy.

This change can occur due to various factors, such as heat transfer or work done on or by the system.

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Answer:

US: the bell ringing

CS:get up when hearing the bell

UR:standing after hearing the bell

CR:hearing the bell in mcdonalds and standing up

Explanation:

US: the bell ringing

CS: get up when hearing the bell

UR: standing after hearing the bell

CR: hearing the bell in Mcdonald's and standing up

commonly, a taxpayer will qualify for the overall quantity if they have an adjusted gross income of up to $ 75,000 for singles and married individuals submitting a separate go back, as much as $112,500 for heads of family, and as much as $150,000 for married couples submitting joint returns and surviving spouses.

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The cross product of A and B is perpendicular to both A and B.

A × B = (4i + 2j + 2k) × (4i - 4j + 8k)

A × B = 16 (i × i) - 16 (i × j) + 32 (i × k) + 8 (j × i) - 8 (j × j) + 16 (j × k) + 8 (k × i) - 8 (k × j) + 16 (k × k)

A × B = -16 (i × j) - 32 (k × i) - 8 (i × j) + 16 (j × k) + 8 (k × i) + 8 (j × k)

A × B = -16k - 32j - 8k + 16i + 8j + 8i

A × B = 24i - 24j - 24k

The magnitude of A × B is

||A × B|| = 24 ||i - j - k|| = 24√3

Dividing A × B by its magnitude gives a unit vector,

(A × B)/||A × B|| = 1/√3 (i - j - k)

Answer:

Explanation:

given : A bus traveling at 60 m/s brakes and accelerates to a stop at a rate of -5m/s.

so, v=0

u=60

a= -5

we know,

v²- u² = 2as

or, (0)² - (60)² = 2×(-5)×s

or, -3600 = -10 s

or, s = 360

The bus travelled 360m and then stopped.

Answer:

c

Explanation:

tbh I think it is c because of what the explanation says so

Answer:

D

Explanation:

because i got it right when guessing its d

The first immediate step in treating clients in crisis is to assess their safety and stabilize their situation.

When a client is in crisis, it is important to assess the situation and provide immediate support. Be sure to remain calm and provide emotional support while listening to the client and understanding their needs. It is also important to assess any risks to safety and help the client access any resources they may need.

Making sure the clients are in a safe environment and providing any immediate medical attention if needed. Once the client is stabilized, the next steps can include providing emotional support, helping them develop coping skills, and connecting them with resources for long-term support. It is important to remember that each client's situation is unique and may require different types of support and intervention.

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The given paraboloid coordinate system (u, v, ϕ) with x = u.v cosϕ,

y = u.v sinϕ , z = 1/2 (u2 - v2) is orthogonal. The gradient is ∇f = (∂f/∂u) e_u + (∂f/∂v) e_v + (∂f/∂ϕ) e_ϕ ; divergent is ∇²f = ∇ · (∇f) ; curl is (∇ x) and laplacian is  (∇²).

We can prove that the paraboloid coordinate system (u, v, ϕ) is orthogonal, by computing the dot products of the basis vectors. The basis vectors in this coordinate system are given by:

e_u = (∂x/∂u, ∂y/∂u, ∂z/∂u) = (v cosϕ, v sinϕ, u)

e_v = (∂x/∂v, ∂y/∂v, ∂z/∂v) = (u cosϕ, u sinϕ, -v)

e_ϕ = (∂x/∂ϕ, ∂y/∂ϕ, ∂z/∂ϕ) = (-u.v sinϕ, u.v cosϕ, 0)

By Taking the dot products, we find that e_u · e_v = 0, e_v · e_ϕ = 0, and e_ϕ · e_u = 0. This proves that the basis vectors are mutually perpendicular, and therefore, the coordinate system is orthogonal.

Next, we can calculate the gradient (∇) in this coordinate system. The gradient of a scalar function f(u, v, ϕ) is given by:

∇f = (∂f/∂u) e_u + (∂f/∂v) e_v + (∂f/∂ϕ) e_ϕ

The divergence (∇ ·) and curl (∇ x) can be computed using the standard formulas in terms of the basis vectors. Finally, the Laplacian (∇²) can be obtained by taking the divergence of the gradient:

∇²f = ∇ · (∇f)

Thus, By evaluating these operations in the given coordinate system using the appropriate partial derivatives, we can determine the gradient, divergent, curl, and Laplacian for any scalar function in the (u, v, ϕ) coordinates.

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The speed of the beam of light moving along the shoreline when it is 1 km from p 62.83 km/min revolution.

A revolution is the motion of 1 object around a center or some other object, a forceful overthrow of a government by using the people, or any sudden or grand trade. An example of revolution is the movement of the earth around the solar.

dθ/dt = 3 rev/min

         = 3×2π = 6π rad/min

tanθ = x/3

\(\frac{d}{dt}\) tanθ = \(\frac{d}{dt}\) (x/3)

sec²θ dθ/dt = 1/3 dx/dt

dx/dt = 3sec²θdθ/dt

At x = 1km; tanθ =x/3 =1/3

sec²θ = 1 + tan²θ = 1+(1/3)²

sec²θ =10/9

dx/dt = 3sec²θ dθ/dt

dx/dt = 3×10/9×6π

dx/dt = 62.83 km/min

Hence, the beam of light along the shoreline when it is 1 km away from point P is 62.83 km/min

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