if the voltage applied to a parallel plate capacitor is doubled and no other changes are made, what happens the capacitance?

The ray of light reflects at an angle of 40° from the mirror.

The angle of incidence of a ray of light should be equal to the angle of reflection as is stated by the first law of reflection. That is the reason why the ray from the candle reflect at 40° which is equal to the angle of incidence.

The bouncing back of light from a smooth surface is called reflection.

The angle at which a ray of light is incident on a surface or strikes a surface is called angle of incidence.

The angle at which a ray of light reflects from a smooth surface after its incidence is called angle of reflection.

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The statement "δg°rxn is negative" is true. In thermodynamics, δg°rxn refers to the standard Gibbs free energy change of a reaction.

It is a measure of the spontaneity and energy change associated with a chemical reaction under standard conditions. A negative value of δg°rxn indicates that the reaction is thermodynamically favorable and tends to proceed in the forward direction.

The Gibbs free energy (G) is related to the equilibrium constant (K) of the reaction through the equation ΔG = -RT ln(K), where R is the gas constant and T is the temperature. The sign of ΔG determines the direction of the reaction: negative ΔG corresponds to a spontaneous reaction (forward direction), while positive ΔG corresponds to a non-spontaneous reaction (reverse direction).

Therefore, when δg°rxn is negative, it implies that the reaction has a favorable change in Gibbs free energy and tends to proceed in the forward direction. This indicates that the reaction is thermodynamically feasible and has a higher probability of occurring.

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The values for the distance and uncertainty are as follows:

Using the first three measurements:

Distance: 3.24 mm

Uncertainty: 0.057 mm

Using all ten measurements:

Distance: 2.98 mm

Uncertainty: 0.448 mm

To report the values for the distance and uncertainty using the first three measurements and the entire set of ten measurements, we can calculate the mean and standard deviation for each set of measurements.

First, let's calculate the values using the first three measurements:

Distance (mm): 3.14, 3.29, 3.29

Mean: (3.14 + 3.29 + 3.29) / 3 = 3.24 mm

Standard Deviation: √((3.14 - 3.24)² + (3.29 - 3.24)² + (3.29 - 3.24)²) / √(3 - 1) = 0.057 mm

Now, let's calculate the values using all ten measurements:

Distance (mm): 3.14, 3.29, 3.29, 3.19, 3.22, 3.31, 3.29, 3.07, 3.09, 1.46

Mean: (3.14 + 3.29 + 3.29 + 3.19 + 3.22 + 3.31 + 3.29 + 3.07 + 3.09 + 1.46) / 10 = 2.98 mm

Standard Deviation: √((3.14 - 2.98)² + (3.29 - 2.98)² + (3.29 - 2.98)² + (3.19 - 2.98)² + (3.22 - 2.98)² + (3.31 - 2.98)² + (3.29 - 2.98)² + (3.07 - 2.98)² + (3.09 - 2.98)² + (1.46 - 2.98)²) / √(10 - 1) = 0.448 mm

Therefore, the values for the distance and uncertainty are as follows:

Using the first three measurements:

Distance: 3.24 mm

Uncertainty: 0.057 mm

Using all ten measurements:

Distance: 2.98 mm

Uncertainty: 0.448 mm

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Answer:

7500 Newtons

Explanation:

Mass of the sportscar= 1500 kg

Acceleration of the sportscar= 5m/s^2

Hence, let the Force acting on it be F

\(We\ know\ that,\\Force=Mass*Acceleration\\F=ma\\\\Here,\\F=1500*5\\=7500 kg m/s^2\ or\ 7500\ Newtons\)

The proof of third equation of motion is determined as  v² = 2as + u².

The proof of third equation of motion is determined as follows;

The first equation is given as;

v = u + at

t = ( v - u ) /a

where;

The formula for the average distance traveled by an object is;

s = (v + u)/2  x  t

Expand the equation above as;

s = (v + u)/2 x  (v - u)/a

s = (v² - u²) / 2a

2as = v² - u²

v² = 2as + u², proved

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Answer:

c

Explanation:

The scientific understanding is constantly evolving, and these statements may be subject to change as new observations and theories are developed.

Based on current scientific understanding, there are two false statements in the given options:

The statement that "a starburst galaxy will be dimmer than normal" is false. In fact, starburst galaxies are often very bright because they are undergoing a rapid burst of star formation, which produces a large amount of light.

The statement that "spiral galaxies are more likely to be near the middle of dense star clusters" is also false. Spiral galaxies are actually more commonly found in the outskirts of galaxy clusters, rather than in the dense central regions.

The other statements are true based on current scientific knowledge. Starburst galaxies are known to undergo faster star formation, elliptical galaxies are indeed more likely to be found near the edges of dense star clusters, and measuring the amount of helium in the universe can allow us to estimate the density of normal matter in the universe. Additionally, hydrogen and helium do make up a small fraction of the mass required to reach critical density in the universe.

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Answer:

the foiley like color doesn't absorb the heat it bounces off of it. it would be much better to have a black blanket

Conventional method of heat transfer.​

How it works?

For example:

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A real root of the equation f(x) = x^2 - 2x - 5 = 0, found using the bisection method in five stages, is approximately x = -0.046875. To find a real root of the equation f(x) = x^2 - 2x - 5 = 0 using the bisection method, we can start by identifying an interval [a, b] that contains the root. Let's choose the interval [-3, 0], where f(a) = f(-3) = 4 and f(b) = f(0) = -5. Since f(a) and f(b) have opposite signs, there must be a root within this interval.

Stage 1:

- Start with interval [a, b] = [-3, 0]

- Calculate the midpoint c = (a + b) / 2 = (-3 + 0) / 2 = -1.5

- Evaluate f(c) = (-1.5)^2 - 2(-1.5) - 5 = -0.25

- Since f(c) has the same sign as f(a), replace a with c: [a, b] = [-1.5, 0]

Stage 2:

- Calculate the new midpoint c = (a + b) / 2 = (-1.5 + 0) / 2 = -0.75

- Evaluate f(c) = (-0.75)^2 - 2(-0.75) - 5 = -4.4375

- Since f(c) has the same sign as f(a), replace a with c: [a, b] = [-0.75, 0]

Stage 3:

- Calculate the new midpoint c = (a + b) / 2 = (-0.75 + 0) / 2 = -0.375

- Evaluate f(c) = (-0.375)^2 - 2(-0.375) - 5 = -2.7461

- Since f(c) has the same sign as f(a), replace a with c: [a, b] = [-0.375, 0]

Stage 4:

- Calculate the new midpoint c = (a + b) / 2 = (-0.375 + 0) / 2 = -0.1875

- Evaluate f(c) = (-0.1875)^2 - 2(-0.1875) - 5 = -1.2217

- Since f(c) has the same sign as f(a), replace a with c: [a, b] = [-0.1875, 0]

Stage 5:

- Calculate the new midpoint c = (a + b) / 2 = (-0.1875 + 0) / 2 = -0.09375

- Evaluate f(c) = (-0.09375)^2 - 2(-0.09375) - 5 = -0.6104

- Since f(c) has the same sign as f(a), replace a with c: [a, b] = [-0.09375, 0]

After five stages, the interval [a, b] has become [-0.09375, 0]. Since the interval is small, we can approximate the root as the midpoint of this interval:

Root ≈ (a + b) / 2 = (-0.09375 + 0) / 2 = -0.046875

Therefore, a real root of the equation f(x) = x^2 - 2x - 5 = 0, found using the bisection method in five stages, is approximately x = -0.046875.

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Explanation:

'What is the magnitude of the force needed to stop the horses and bring the box into equilibrium?' ≈42N; according to the vectors rules.

'Where would you locate the rope to apply the force?' - in point D.

PS. zoom out the attached picture.

Answer:

0.16239316239316239316239

Explanation:

ang haba nang solve ko dito hehe

The mass of the iron cube of side 0.0800 m, having a density of 7874 kg/m³ is 50.39 kg.

Mass can be defined as the quantity of matter a body contains

To calculate the mass of the iron cube, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, The mass of the iron cube is 50.39 kg.

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Answer:

4.03

Explanation:

correct answer for acellus

y(t) = tx(t) is a linear system, causal, time-variant, and with memory. Let's show that this system is linear using superposition. Suppose x1(t) and x2(t) are two input signals, and we apply them to the system to get y1(t) and y2(t), respectively.

Consider the input signal x(t) = a1x1(t) + a2x2(t),

where a1 and a2 are constants.

Then the output of the system is given by

y(t) = tx(t) = t(a1x1(t) + a2x2(t)) = a1

tx1(t) + a2

tx2(t) = a1y1

(t) + a2y2(t).

Therefore, this system is linear.b) y(t) = ax(t) + b,

where a and b are constants is a linear system, causal, time-invariant, and with memory.Let's show that this system is linear using superposition. Suppose

x1(t) and x2(t) are two input signals, and we apply them to the system to get y1(t) and y2(t), respectively. Consider the input signal

x(t) = a1x1(t) + a2x2(t),

where a1 and a2 are constants. Then the output of the system is given by

y(t) = ax(t) + b = a(a1x1(

t) + a2x2(t)) + b = a1ax1(t) + a2ax2(t) + b = a1y1(t) + a2y2(t).

Therefore, this system is linear.c)

y(t) = ax²(t) + bx(t) + c,

where a, b, and c are constants, is a nonlinear system, causal, time-invariant, and with memory. To see that it's nonlinear, consider two input  signals, x1(t) and x2(t), and let y1(t) and y2(t) be the corresponding outputs. Let x(t) = a1x1(t) + a2x2(t), where a1 and a2 are constants.

Then the output of the system is given

byy(t) = ax²(t) + bx(t) + c = a(a1x1(t) + a2x2(t))² + b(a1x1(t) + a2x2(t)) + c ≠ a1y1(t) + a2y2(t).

Therefore, this system is .d) y(t) = x(T)dT is a linear system,   time-invariant, and with memory. Let's show that this system is linear using superposition. Suppose x1(t) and x2(t) are two input signals, and we apply them to the system to get y1(t) and y2(t), respectively. Consider the input signal x(t) = a1x1(t) + a2x2(t), where a1 and a2 are constants. Then the output of the system is given by

y(t) = x(T)dT = (a1x1(T) + a2x2(T))dT = a1x1(T)dT + a2x2(T)

dT = a1y1(t) + a2y2(t).

Therefore, this system is linear.

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Explanation:

∑τ = Iα

(6 N) (0.80 m) = I (0.5 rad/s²)

I = 9.6 kg m²

Answer:

Friction of the mountain on the skier in the opposite direction

Explanation:

answered it on khan academy

Friction of the mountain on the skier in the opposite direction.

A force is a push or a pull that acts upon an object as a results of its interaction with another object. Forces result from interactions.

Forces result from contact interactions (normal, frictional, tensional, and applied forces are examples of contact forces) and other forces are the result of action-at-a-distance interactions (gravitational, electrical, and magnetic forces).

There are two forces resulting from this interaction - a force on the chair and a force on your body. These two forces are called action and reaction forces and are the subject of Newton's third law of motion.

Therefore, Friction of the mountain on the skier in the opposite direction.

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1 ) The value of the race constant acceleration = 28.14  m / s²

2 ) Time taken by the car to complete the distance = 5.33 s

s = ( u + v ) t / 2

s = Displacement

u = Initial velocity

v = Final velocity

t = Time

u = 0 m / s

v = 150 m / s

s = 400 m

400 = ( 0 + 150 ) t / 2

t = 800 / 150

t = 5.33 s

v = u + a t

a = Acceleration

150 = 0 + 5.33 a

a = 150 / 5.33

a = 28.14  m / s²

Therefore,

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Answer:

When choosing a location for a new optical observatory on Earth, there are several factors to consider. Some of the key factors include:

Taking into account these factors, some of the best locations for optical observatories on Earth are high-altitude sites in remote, dry, and mountainous areas, like Mauna Kea in Hawaii, Cerro Paranal in Chile, or Roque de los Muchachos Observatory in Spain!

Answer:

The capacitor helps to store data even after the battery is removed

Explanation:

The cell phone is fitted with different types of capacitors, which come in all shapes and sizes. However they come, their main function is to store charges within them, and dissipate these charges when necessary.

This serves a great purpose in the printed circuit boards of phones as they provide the power needed for data to be stored even when the battery of the phone is removed.

A capacitor is a solid-state device because it has no moving part. It just stores charges within its parallel plates for the phone until the power is needed.

Fredd must use the trait theory for the online personality tests because it is based on distinctive features.

The trait theory is a model that states people have certain basic personality traits which are distinctive features.

The trait theory is always based on the strength of these basic human trait characteristics.

The trait theory is based on three types of features capable of being used to describe personality, which include stability, consistency and individual differences.

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Historically, photographs taken by American spy planes at high altitudes have been used for various purposes such as reconnaissance and intelligence gathering.

Depending on the specific photograph in question, it could potentially show a wide range of information such as military installations, troop movements, or other sensitive information. The altitudes at which a photo is taken can affect the level of detail that can be seen in the image. However, it is important to note that the use of such technology can also raise privacy and security concerns, particularly if it is used to gather information on individuals or groups without their consent or knowledge.

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Explanation:

There are multiple other sources of kinetic energy that can be harnessed for electricity. Wind-powered turbines can create energy through windmills or wind-power generators. Wind energy is harnessed into kinetic energy by turning panels that are designed and angled to catch as much wind as possible.

Water is more dense in its solid state.

This statement is true.

Answer: what is it asking

Explanation:

0.1 km/min

Explanation:

1 km every 10 minutes

Answer:

The frequency of the phonograph record is 0.2 Hz

Explanation:

The frequency of an object moving in uniform circular motion is the number of completed cycles the object makes in a specified time period

The given parameters of the phonograph record are;

The radius of the record = 0.15 m

The number of times the phonograph record rotates, n = 18 times

The time it takes the phonograph record to rotate the 18 times, t = 90 seconds

The frequency of the phonograph record, f = (The number of times the phonograph record rotates) ÷ (The time it takes the phonograph record to rotate the 18 times)

∴ The frequency of the phonograph record, f = n/t = 18/(90 s) = 0.2 Hz

The frequency of the phonograph record = 0.2 Hz.

Answer:

A light-year is the distance light travels in one year. How far is that? Multiply the number of seconds in one year by the number of miles or kilometers that light travels in one second, and there you have it: one light-year. It's about 5.88 trillion miles (9.5 trillion km).

Explanation:

Main answer-

PE=mgh

KE=E-PE

V = (2*g*h)^½

at point A

PE = 10*9.8*50=4900 J

KE = 0 J  ( because the velocity of the body is 0)

V=0

at point B

PE = 10*9.8*35=3430 J

KE = 4900-3430=1470 J

V= ( 2*9.8*15)^ ½

V=17.14 m/s

at point C

PE= 10*9.8*25=2450 J

KE=4900-2450=2450 J

V= (2*9.8*25)^ ½

V=22.135 m/s

at point D

PE=10*9.8*0=0 J

KE=4900-0=4900 J

V=(2*9.8*50)^ ½

V=31.30 m/s

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