How much heat energy is required to raise the temperature of 7 kg of Copper from 0°C to 10°C?

According to this question, a 28.5 g sphere is added to a graduated cylinder containing 45.50 ml of water. The water level rises to the 49.10 ml mark.

This means that the volume of the sphere can be calculated as follows: 49.10mL - 45.50mL = 3.6mL.

The density can be calculated by dividing the mass by its volume as follows:

Density = 28.5g ÷ 3.6mL = 7.92g/mL

Based on the density of the sphere, it is incoloy.

Therefore;

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The option that has the two vertical probes in the proper positions to find the correct value for AT is the first graph.

The Probe cards which are known to be very suited for multi-die testing of general logic products, such as the SoC and microcomputer products, are said to be referred to as vertical-probe.

This is due to the fact that the probe needles are said to be in a vertical positioning to the substrate, the probe card is one that is known as a "vertical-type" probe card.

The option that has the two vertical probes in the proper positions to find the correct value for AT is the first graph.

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See full question below

Which of the following has the two vertical probes in the proper positions to find the correct value for AT?

The area of the kitchen counter and the space needed for the microwave oven.

The term "microwave oven" refers to an electric oven that cooks and warms food using electromagnetic radiation with a microwave frequency range. Dielectric heating is used to heat the meal as a result, which allows the polar molecules to rotate and release heat energy. Microwave ovens heat food quickly and efficiently because excitation is rather homogenous in the outer 25–38 mm (1–1.5 inches) of a homogeneous, high water content food item.

A variety of dishes can be cooked in the ubiquitous microwave oven, which can also be used to reheat previously prepared food.

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The corresponding velocity vs time and acceleration vs time graphs from the position vs time graphs are given below,

The speed-time graph: A plot between speed and time is called a velocity-time graph. It depicts the motion of an object moving straight ahead. At any given time, the magnitude of velocity equals its instantaneous speed. Only 1-D motion is intended for its drawing, which accepts positive and negative values.

Acceleration-Time For a particle travelling in a straight path, the acceleration is displayed against time in the graph. The acceleration-time depicts time and acceleration values on the x and y axes, respectively.

An object's distance from its beginning position at any given moment since it began moving is displayed on a position-time graph. The greater the slope of the line and the faster the object's speed changes, the steeper the line is. More location vs. time graph illustrations can be found in this two-part video series.

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The number of football fields per hour that are being deforested is 1710 football fields.

According to this question, tropical rainforests are being cleared at a rate of 8 million hectares per year.

This means that 8 million hectares are being cleared every 8760 hours, since there are 365 days in a year and 24 hours in a day.

1 hectare = 2.471 acres

8 million hectares = 19.77 million acres

If 19.77 million acres is cleared every 8760 hours

Per hour, 19770000 ÷ 8760 = 2256.8 acres is cleared.

Since there are 1.32 acres in a football field, this means that approximately 1710 football fields are being deforested per hour.

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Answer:

90m

Explanation:

it travels at 30 m/s so 30*3 is 90

The average distance between the planet and the star is:

R=9.36*10^11 m

Orbital velocity  v=√{(G*M)/R},

G = gravitational constant =6.67*10^-11 m³ kg⁻¹ s⁻²,

M = mass of the star

R =distance from the planet to the star.

v=ωR, with ω as the angular velocity and R the radius

ωR=√{(G*M)/R},

ω=2π/T,

T = orbital period of the planet

To get R we write the formula by making R the subject of the equation

(2π/T)*R=√{(G*M)/R}

{(2π/T)*R}²=[√{(G*M)/R}]²,

(4π²/T²)*R²=(G*M)/R,

(4π²/T²)*R³=G*M,

R³=(G*M*T²)/4π²,

R=∛{(G*M*T²)/4π²},

Substitute values

R=9.36*10^11 m

As was already said, Earth is located roughly 150 million kilometres (93 million miles) from the Sun on average. It is 1 AU. Mars is on our fictitious football field's three-yard line. On average, the distance between the Sun and the red planet is around 142 million miles (228 million kilometres).

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The complete question is ''If it takes a planet 2.8 × 108 s to orbit a star with a mass of 6.2 × 10^30 kg, what is the average distance between the planet and the star? 1.43 × 10^9 m 9.36 × 10^11 m 5.42 × 10^13 m 9.06 × 10^17 m''.

Finally, they rely on a variety of environmental cues such as the length of the day, the Sun's position and angle in the sky, water salinity and temperature gradients, and the Earth's magnetic field. They do this to navigate effectively.

Animal navigation refers to the ability of many animals to find their way around without the use of maps or instruments.

Birds like the Arctic tern, insects like the monarch butterfly, and fish like salmon migrate thousands of miles to and from their breeding grounds on a regular basis, and many other species navigate effectively over shorter distances.

Several animal species can use a variety of cues to help them orient and navigate effectively. Insects and birds can identify where they are and navigate by combining learned landmarks with sensed direction (from the earth's magnetic field or from the sky).

Thus, this is why an animal might use more than one type of clue to find its way.

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The magnitude of the related average acceleration will increase if the same change in velocity occurs in less time.

The rate at which a body's distance changes in relation to time is referred to as its velocity. The SI unit is meter per second ( m/s).

Acceleration is the rate at which speed and direction of velocity vary over time. When something moves faster or slower, it is considered to be accelerating. Motion on a circle accelerates even while the speed is constant because the direction is always changing.

Acceleration can be defined as the time rate of change in velocity

a = Δv / t

Now as t is in the denominator.

The smaller value of time will result in greater acceleration values with constant velocity change.

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The ejected electrons would have greater kinetic energy if the wavelength of light is decreased when Photons are shone on a piece of metal and one electron is ejected for each absorbed photon.

This is referred to as the type of energy which is possessed by a body by virtue of its motion and it has an inverse relationship with the  wavelength of light.

This therefore means that as the wavelength of light is decreased, the kinetic energy of the ejected electrons will increase and vice versa which is therefore the reason why it was chosen as the most appropriate choice.

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Answer: You pedaling the bike is transforming chemical energy, supplied by the breakdown of the food you eat, into mechanical energy to turn the pedals. The chemical energy is potential and the mechanical energy is kinetic.

Explanation: hope this helps

Answer: At the start of the ride, the cyclist initially has chemical energy stored in his/her body as a result of the cyclist’s food intakes. This chemical energy in the cyclist is then converted to kinetic energy on the bike pedal due to the cyclist applying a downward force upon the bike pedal.

Explanation:

You should also be familiar with the term "reference voltage," which is significant. A known voltage, referred to as the Reference voltage, is compared against an unknown voltage during an ADC conversion to determine its value.

An electrical device called a voltage reference produces a fixed voltage in the ideal case regardless of the device's load, changes in the power source, changes in temperature, or the passage of time.

When conditions like source voltage or ambient temperature fluctuate, a voltage reference is a precision device created especially to keep the output voltage constant.

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The question is incomplete the right solution for this question is:

E photon = 2.39 eV, b = 6.32 * 1048 fotones/s, c = 9.87 * 1048 fotones/s.

To compute the answer, we must take into account the Plack postulate, which states that each photon's energy is given by

Ephoton is equal to h*f, where f is the frequency of light and h is the Planck universal constant.

We also know that the relationship between wavelength and frequency for waves has the following form:

velocity equals wavelength times frequency (f) Assuming that velocity in our case is the same as the speed of light, we can derive

Ephoton= h*f= h*c/ and hc= 1240 eV/nm are related terms.

Consequently, Ephoton=1240/540 nm=2.39 eV

Since power is defined as energy/time, we may calculate the power emitted by considering a number per second (n) and multiplying it by its energy.

Power in this instance: n*h*f

On the other hand, we must take into account that the light is emitted isotropically in order to compute the number of photons per second at a distance of 5 m from a light bulb using an area of 2 cm2.

the percentage of the 2 cm2 at 5 meters is 425 of the total area radiated.

0.02*0.02/25=1,6*10^-5

To perform the calculations for photons at 810 nm, we must alter the photon energy to 1.53 eV.

As 810 nm photons have lower energy, 100 W light bulbs emit more of these photons than they do.

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When food is kept in storage, it has chemical energy as potential. Chemical energy in food is transformed into fuel for our bodies when a person eats it.

Thermal energy, which keeps us warm, is the fuel for our bodies. \

When a human moves, the chemical energy is also transformed into motion. Kinetic energy is the movement.

Because food gives the human body the chemical energy it needs to carry out its daily tasks, the fitness magazine made the comparison between food and a battery in this instance.

The banana is a fruit that contains a lot of carbohydrates and fructose. Because of this, it is a great food to eat before exercise because it gives the muscles the chemical energy they need to perform better both before and after exercise.

The banana is also high in potassium, magnesium, phosphorus, and vitamins a and c, which gives it more strength and energy.

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The maximum height reached by the lime thrown upward is 1.28 m.

The maximum height of a projectile is the highest vertical position along its trajectory.

The maximum height reached by the lime thrown upward is calculated as follows;

v² = u² - 2gh

where;

At maximum height, the final velocity of a projectile is zero.

Substitute the given parameters and solve for the maximum height reached by the lime.

0 = u² - 2gh

h = u²/2g

h = (5²)/(2 x 9.8)

h = 1.28 m

Thus, the maximum height reached by the lime thrown upward is 1.28 m.

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Answer:4.2 miles/hour

Explanation:

220 each side = 880 meters total

880/3.5 = 251 is how many meters per minute

multiply by 60 to get per hour

The Moon's escape velocity is less than the Earth's escape velocity.

We know that,

[tex]V_{e}[/tex] = √ 2 G M / r

where,

[tex]V_{e}[/tex] = Escape velocity

G = Universal gravitational constant

M = Mass of object

r = Radius of object

For the Moon,

G = 6.67 * [tex]10^{-11}[/tex] N m² / kg²

M = 7.35 * [tex]10^{22}[/tex] kg

r = 1737400 m

[tex]V_{e}[/tex] = √ [ 2 ( 6.67 * [tex]10^{-11}[/tex] * 7.35 * [tex]10^{22}[/tex] ) / 1737400 ]

[tex]V_{e}[/tex] = 2375.89 m / s = 5314.72 mil / hr.

Escape speed is the amount of speed required to escape the object's gravitational pull. The size or mass of the object trying to escape does not matter.

Therefore, the Moon's escape velocity is less than the Earth's escape velocity.

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The maximum kinetic energy of the mass performing simple harmonic motion is 7.88 joules.

The kinetic energy of any body is the energy possessed by the body due to virtue of its motion is called Kinetic energy.

Given in the question is a mass of 0.1 kg oscillating in simple harmonic

motion. From the question, we can write -

Mass [M] = 0.1 kg

Amplitude [A] = 0.2 m

Time period [T] = 10 s

The Kinetic energy of a Simple harmonic motion is given by -

K.E = 1/2 mω²a²cos²(ωt + Φ)

For maximum kinetic energy -

ωt + Φ = 0

Therefore -

K.E [max] = 1/2 mω²a²

Now -

Angular frequency = ω = 2πT = ω = 2 x 3.14 x 10 = 62.8 s

The maximum kinetic energy will be -

K.E [max] = 1/2 mω²a² = 1/2 x 0.1 x 62.8 x 62.8 x 0.2 x 0.2 = 7.88 Joules

Therefore, the maximum kinetic energy of the mass performing simple harmonic motion is 7.88 joules.

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The rotations per second will triple and she will rotate thrice per second.

                              [tex]\begin{aligned}\\\\I_1\omega_1&= I_2 \omega_2\\\\I\omega &= \frac{I}{3}.\omega_2\cdots(I\, \text{could be cancelled out})\\\\\omega_2 &= 3I\end{aligned}[/tex]

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If an object is speeding up its acceleration can be positive or negative depending on the direction of motion.

According to mathematics, a negative acceleration indicates that the velocity will be subtracted, while a positive acceleration indicates that the velocity will be increased.

In physics,

A positive acceleration indicates a rising velocity over time.

Negative acceleration describes a speed decrease over time.

A bus or car going at an accelerating rate is said to have positive acceleration.

We may say that it is speeding up in the direction it is moving.

When we use the brake in the previous example, the speed of the car reduces.

Then it experiences a deceleration.

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The main affect would applying 10x as much force have on the object is the  covering of 10 times more distance as compared to the previous force because the force is 10 times.

If on movable object we apply 10x as much force then the object will move in the forward direct and accelerate more which leads to covering of distance 10 times more because we know that if one newton force is applied the body accelerate to 1 meter per second square so we apply 10 times more force so the body will accelerate 10 times and attain 10 times more distance. So that's why we can say that increasing force will lead to increase distance covered by the body.

So we can conclude that the main affect would applying 10x as much force have on the object is the  covering of 10 times more distance as compared to the previous force because the force is 10 times.

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Answer:

ufifufogifsotufidogifidofut

Through -212 V potential difference must the electron pass to accomplish this

The difference in electric potential between two points, which is defined as the effort required per unit of charge to move a test charge between the two places, is known as voltage, electric potential difference, electric pressure, or electric tension.

The initial kinetic energy of the electron is,

[tex]{K_i} = \frac{1}{2}mv_i^2[/tex]

Here, m is the mass of the electron and

is the initial velocity of the electron.

[tex]\begin{array}{c}\\{K_i} = \frac{1}{2}\left( {9.11 \times {{10}^{ - 31}}\;{\rm{kg}}} \right){\left( {2.5 \times {{10}^6}\;{\rm{m/s}}} \right)^2}\\\\ = 2.88 \times {10^{ - 18}}\;{\rm{kg}}\\\end{array}[/tex]

The final kinetic energy of the electron is,

[tex]\begin{array}{c}\\{K_f} = \frac{1}{2}\left( {9.11 \times {{10}^{ - 31}}\;{\rm{kg}}} \right){\left( {9 \times {{10}^6}\;{\rm{m/s}}} \right)^2}\\\\ = 3.68 \times {10^{ - 17}}\;{\rm{kg}}\\\end{array}[/tex]

[tex]\begin{array}{c}\\{V_1} - {V_2} = \frac{{3.68 \times {{10}^{ - 17}}\;{\rm{J}} - 2.88 \times {{10}^{ - 18}}\;{\rm{J}}}}{{ - 1.6 \times {{10}^{ - 19}}\;{\rm{C}}}}\\\\ = - 212\;{\rm{V}}\\\end{array}[/tex]

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The average power carried by the wave is 0.29 W

We know that,

[tex]P_{avg}[/tex] = [tex]\frac{1}{2}[/tex] ω² A²√ ( μ F )

ω = 2 π f

μ = m / l

where,

[tex]P_{avg}[/tex] = Average power

ω = Angular speed

A = Amplitude

μ = Linear mass density

F = Tension

f = Frequency

m = Mass

l = Length

Given that,

m = 3.5 g = 0.0035 kg

l = 75 cm = 0.75 m

F = 27 N

f = 120 Hz

A = 1.7 mm = 1.7 * [tex]10^{-3}[/tex] m

μ = m / l = 0.0035 / 0.75

μ = 4.67 *  [tex]10^{-3}[/tex] kg / m

ω = 2 π f = 2 * 3.14 * 120

ω = 754 [tex]s^{-1}[/tex]

[tex]P_{avg}[/tex] = [tex]\frac{1}{2}[/tex] ω² A²√ ( μ F )

[tex]P_{avg}[/tex] = [tex]\frac{1}{2}[/tex] ( 754 )² ( 1.7 * [tex]10^{-3}[/tex] )² √ ( 4.67 *  [tex]10^{-3}[/tex] * 27 )

[tex]P_{avg}[/tex] = ( 821.5 * [tex]10^{-3}[/tex] ) √ 0.126

[tex]P_{avg}[/tex] = 821.5 * [tex]10^{-3}[/tex] * 0.36

[tex]P_{avg}[/tex] = 0.29 W

Average power is the measure of total work done by the body in a given amount of time.

Therefore, the average power carried by the wave is 0.29 W

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The speed (in m/s) of the piece of clay is 15.394 m/s

a = 338.527 m/[tex]s^{2}[/tex]

The rate at which an object's velocity with respect to time changes is referred to as acceleration In mechanics, acceleration refers to the rate at which an object's velocity with respect to time varies. Acceleration is a vector quantity (in that they have magnitude and direction).

The direction of the net force acting on an object determines the direction of its acceleration.

Is a vector an acceleration?

Yes, since it has both magnitude and direction, acceleration is a vector. The acceleration's magnitude and direction indicate whether or not the object is traveling faster in the same direction as it is being moved. This is an example of both acceleration and deceleration.

Acceleration is the process through which an object's speed changes over time, whereas velocity is the rate at which that object is traveling in a specific direction.

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When the Earth's surface is turned toward the Moon, high tides happen as a result of the Moon's gravitational pull.

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Using the charter system conversation in the right angled value triangle we apply distance formula and get the G-plot value of 9.876 u.

The movement in a graph is determined through the two perpendicular axis in which the first coordinate represents the distance to be traveled in the x axis and the second coordinate shows the distance to be traveled in the y axis .

If you want to determine the distance between any two point in a graph the distance formula is used in such case the distance formula is applied like Pythagoras theorem.

Given:

A (1,3)

Period = 0.2 seconds

B (1,5)

Period = 0.5 seconds

Before applying distance formula we need to simplify the given value into charter system.

Where,

A become a substituted value for the argument of square on the basic structure.

Since A symmetrical is that of right angled triangle we can use the basic charter values.

Therefore A now become A(π,2)

Similarly B become B(e,nπ)

Using distance formula to find the graph plot we get:

AB = 5.6π - e×3.14

AB = 9.876

where AB is the distance between A and B.

Therefore using the charter system conversation in the right angled value triangle we apply distance formula and get the G- plot value of 9.876 u.

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Answer:   True

Explanation:

When drawing a vector, you should represent the magnitude of the vector by the length of the arrow is true.

What are vectors?
The term "vector" in mathematics and physics is used informally to refer to some values that cannot be stated by a single integer (a scalar) or to certain members of vector spaces. In the past, vectors were first used to represent quantities with both a magnitude and a direction, such as displacements, forces, and velocity, in geometry and physics (usually in mechanics). Similar to how distances, masses, and time are represented by real numbers, these quantities are represented by geometric vectors.

In some circumstances, tuples—finite sequences of numbers with a definite length—are sometimes referred to as vectors.

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The existence of an afterlife or life after this one is uncertain.

Explanation:

Wether you're reincarnated or your soul is transported to another plane of existence, such as heaven or hell for example, is uncertain. For all we know we could just cease to exist. We are born to die. And we will not know what happens once we die until we die.

Then again, there are people who die and then are resurrected. Some say there was nothing, others say there was something. We will not know until we experience death ourselves.