Answer:
Grades ... gravity affects them and the potential energy is converted into kinetic energy. Watching a Slinky move down the stairs or vibrating while ... and kinetic energy, and finally into sound waves.
Explanation:
Answer:
A wave as seen above will start losing energy by transferring it to kinetic and rotational energy at the shallow bottom including sand transfers, which finally will become heat (extra kinetic energy). ... In the end all energy will end up as a higher temperature in the region and ground than if the ocean were calm.
Explanation:
plz mark me has brainlist
On what type of project might a project manager make all the decisions himself or herself?
A.
a small, brief project
B.
a large, complex project
C.
one that involves technology
D.
one that involves many people
The project manager make all the decisions by himself or herself through the one that involves technology.
What is decision making in projects?The decision making in a management for a project involves the following steps:
The person should involves through the technology.He should recognize if there was a problems.He should understand and define the goals.Should generate all possible solutions – brainstorm all solutions, preferably in a group.Hence, Option C is the correct answer.
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PLEASE HELP I CAN'T FAIL THIS TEST
Once a crystal has formed, what makes it continue to form?
Do crystals form from the inside or outside and why?
THE ANSWERS CANNOT BE ANY LESS THAN TWO SENTENCES!!
Answer:
Once a crystal has formed, it continues to form because as more atoms join and create a uniform and repetitive pattern the crystal grows. Crystals form from the outside, crystals are unlike biological systems and grow ethier form vapor, a melt or from a solution.
A 1,500kg boulder falls off a 120m tall cliff on a planet that has a surface gravitational field of magnitude 3. 6 N/kg. Assume that the planet has no atmosphere. How long does it take for the boulder to strike the ground?
Write your answer using two significant figures
Answer:
8.16 seconds, enjoy physics
A 1,500kg boulder falls off a 120m tall cliff on a planet that has a surface gravitational field of magnitude 3. 6 N/kg. Assume that the planet has no atmosphere, it would take 8.16 seconds for the boulder to strike the ground
What are the three equations of motion?There are three equations of motion given by Newton
The first equation is given as follows
v = u + at
the second equation is given as follows
S = ut + 1/2×a×t²
the third equation is given as follows
v² - u² = 2×a×s
Note that these equations are only valid for a uniform acceleration.
where u and v are the initial and final velocity respectively
S is the total distance covered by the object
a is the acceleration of the object
As given in the problem a 1,500kg boulder falls off a 120m tall cliff on a planet that has a surface gravitational field of magnitude 3. 6 N/kg. Assume that the planet has no atmosphere
S = 120m, the initial velocity of the boulder is zero
u = 0
g = 3.6 m/s²
S = ut + 1/2at²
u= 0m/s , a= 3.6 m/s² and t = ? seconds
120 = 0×t + 0.5×3.6×t²
t² = 120 /(3.6×0.5)
t² = 66.667
t = 8.16 seconds
Thus, it would take 8.16 seconds for the boulder to strike the ground
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Why do we use percent deviation rather than simply expressing the size of the error itself?
Answer:
the percentage we have the fraction between the error and the magnitude,
Explanation:
When absolute error is used, it is a value that remains constant regardless of the magnitude of the measurement, for large measurements it can represent great accuracy, but for small measurements the accuracy may be low, for example> if we use a tape measure with error of Dx = 0.1 cm if the measurement is 1 meter this error is acceptable, but if the measurement is 1 cm the error is too big.
When we use the percentage we have the fraction between the error and the magnitude, so if this relationship is small the measure is very tight and but if the relationship is high the measure has little pressure, for example
Δx = 1 cm = 0.01 m
% = 0.01 / 1 100 = 1%
% = 0.01 / 0.01 100 = 100%
therefore the precision of the measurement is known the percentage error
ilva is standing a few feet away from boiling water, and she feels the heat from the boiling water and the stove. what term describes this transfer of thermal energy?
The transfer of thermal energy that Ilva is experiencing is known as radiation. Radiation is the transfer of heat energy through electromagnetic waves that do not require a medium to travel through. In this scenario, the boiling water and stove are emitting infrared radiation which is absorbed by Ilva's body, causing her to feel the heat. Additionally, convection and conduction are two other methods of transferring thermal energy. Convection is the transfer of heat energy through the movement of fluids, while conduction is the transfer of heat energy through direct contact between two objects. However, in this scenario, radiation is the primary method of thermal energy transfer that Ilva is experiencing.
Ilva is standing a few feet away from boiling water, and she feels the heat from the boiling water and the stove. The term that describes this transfer of thermal energy is "radiation." Radiation is the process through which thermal energy is transferred through electromagnetic waves without the need for direct contact or a medium like air or water. In this scenario, the heat from the boiling water and the stove radiates outwards and reaches Ilva, allowing her to feel the warmth. This form of heat transfer is why you can feel the heat from a fire or a hot object without touching it directly.
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The term that describes the transfer of thermal energy that Ilva feels from the boiling water and the stove is radiation.
Radiation is the transfer of thermal energy through electromagnetic waves. Unlike conduction and convection, radiation does not require a medium (such as a solid, liquid, or gas) to transfer heat. Instead, it can transfer energy through empty space or air.
In Ilva's situation, the heat she feels from the boiling water and the stove is primarily due to the infrared radiation emitted by these hot objects. As the electromagnetic waves reach her, they transfer the thermal energy to her body, making her feel the warmth even though she is standing a few feet away from the heat source.
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An object with a mass of 1.5 kg changes its velocity from 15 m/s to 22 m/s during a time interval of 3.5 seconds. what impulse was delivered to the object? 3.0 n • s 11 n • s 25 n • s 56 n • s
Answer:
11 Ns
Explanation:
Formula
Impulse = Force x timeCalculating Force
F = maF = m(v - u / t) [From 1st Law of Motion : v = u + at]F = 1.5(22 - 15 / 3.5)F = 1.5 (7/3.5)F = 1.5 x 2 = 3 NCalculating Impulse
J = F x tJ = 3 x 3.5J = 11.5 Ns ≅ 11 Ns (closest answer)Answer:
is (B) 11 N • s
Explanation:
trust me I got it right
.What is the unit of measurement used for Electric Potential?
a. J
b. N
c. V/m
d. N/C
e. V
f. J/C
The unit of measurement used for Electric Potential is Volt (V). Therefore, option e, V, is the correct answer.
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what is the reading v of the voltmeter?
In electrical circuits, the letter "v" is frequently used as a sign for voltage. The difference between two places in a circuit in terms of electric potential energy per unit charge is known as voltage, also known as electric potential difference.
Volts, which are represented by the letter "V," are used to measure it. In order to indicate voltage in equations or diagrams, the letter "v" is frequently employed as a shorthand sign.
Usually, it is parallel-connected to the component or area of the circuit whose voltage is being monitored. Voltmeters are made to have a very high resistance because if they did, they would drain a lot of current from the circuit and change the voltage being measured. Both AC and DC voltages can be measured by them, and they come in a variety of forms, including analogue and digital versions. Voltmeters are frequently employed in electrical and electronic experiments, circuit testing and troubleshooting, and other applications in electrical engineering.
A voltmeter is an instrument used to measure the electrical potential difference, or voltage, between two points in an electrical circuit. It typically consists of a meter that is connected in parallel with the two points where the voltage is to be measured. The meter's internal resistance is very high so that it draws a negligible amount of current from the circuit.
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question:
What is voltmeter?
the tesla motors model s, an all-electric-powered automobile, is in which stage of its product life cycle?
The tesla motors model s is in maturity stage.
What is Product Life Cycle?
The product life cycle consists with different stages of any commercial product in market from its early introduction in market to last appearance in the market. The life cycle have four fundamental stages: introduction, growth, maturity, and decline. Some good products carry a prolonged maturity state but eventually, every product phases out from the market due to some facts like: competition, saturation, decrease in sale and even reduction of demand.
According to data, the sale of tesla motors model s started on year 2012 and it was in zenith on year 2016 but between 2019 and 2021 sale is in saturated stage with a small fluctuation. so, we can consider that its product life cycle is in maturity stage.
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When vectors are added or subtracted, the net force is called the____.
Sum
Solution
Resultant
Vector quantity
Answer:
When vectors are added or subtracted, the net force is called the resultant force.
Explanation:
Hope i helped, have a nice day/night
what type of galaxy Andromeda is??
Answer:
a spiral
Explanation:
It's the largest member of the Local Group of galaxies
Answer:
Barred spiral galaxy
A 0.013 kg rubber stopper is attached to a 0.93 m length of string. the stopper is swung in a horizontal circle, making one revolution in 1.18 s. find the centripetal acceleration of the rubber stopper .
The centripetal acceleration of the rubber stopper is 26.38 m/s².
Mass of the rubber stopper = m = 0.013 Kg = 13 g
Length of the string = r = 0.93 m
Time taken for one revolution = t = 1.18 s
Centripetal acceleration = a =
= centripetal acceleration = square of velocity / radius of the path
= a = v²/r
Since, we know the time taken for on revolution,
velocity = distance / time
where, distance is equal to the circumference of the circular path.
Thus, Velocity = 2πr/t
= v = 2πr/t
= v = (2 X 3.14 X 0.93) / 1.18
= v = 4.953 m/s
Now, substituting this in the formula of centripetal acceleration we get,
= a = 4.953² / 1.18
= a = 26.38 m/s²
Thus, the centripetal acceleration of the rubber stopper is 26.38 m/s².
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What does the following figure illustrate?
A. Diffraction
B. Refraction
C. Resonance
D. Interference
Answer:
the answer would be c sry if it is wrong
PHYSICS.
……………………………………………….
Answer:
Work, W = F * d, and
Work = change in kinetic energy, so W=deltaKE.
Hence,
deltaKE=F * d
(1/2)*m*v^2 =F * d
d=[(1/2)*m*v^2]/F
d=[(1/2)*0.6*20^2]/5
d=24 m.
Explanation:
Work = change in kinetic energy, so W=deltaKE.
Emotional elevation only occurs in animal kin groups. please select the best answer from the choices provided t f
Emotional elevation can occur in individuals or in groups, therefore, it is false that emotional elevation only occurs in animal kin groups.
What is emotional elevation?Emotional elevation is the process whereby the moods of individuals are elevated due to their interactions with others or due to other factors.
Emotional elevation can occurs in individual animals or those on animal kin groups.
Therefore, it is false that emotional elevation only occurs in animal kin groups.
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Answer:
F
Explanation:
Can anyone make me a summary of strenght weight and elastic strenght?
Strength, weight, and elastic strength are all concepts related to the physical properties and abilities of materials.
Strength refers to the ability of a material to withstand applied forces without deformation or failure. It is a measure of the material's resistance to breaking or undergoing permanent changes in shape. Strong materials can handle higher stresses and strains before reaching their limits.
Weight, on the other hand, is a measure of the force exerted by gravity on an object. It is dependent on the mass of the object and the acceleration due to gravity. Weight is a scalar quantity, typically measured in units of force such as Newtons or pounds.
Therefore, strength relates to a material's ability to resist forces, weight refers to the force of gravity on an object, and elastic strength denotes the maximum stress a material can endure without permanent deformation.
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Using the star finder according to the instructions given in lab and those listed on the previous page, complete each of the following: 4) Which zodiacal constellations are visible in the western sky at 6 am on January 25 ? The star finder is a device that aids in locating celestial objects when viewing the sky. Its design enables an observer to determine valuable information such as rising time, setting time, position, etc. The instructor will provide details during the lab time, but some information requires additional emphasis: - When using the star finder for actually locating celestial objects for viewing, it must be held overhead, with the compass points on the star finder matching the compass points in reality. (You may have noticed that east and west are reversed when looking down on the star finder.) - The entire star field contained within the open ellipse on the star finder represents the sky for the time and date shown. The edges of the ellipse correspond to the observer's horizon. - East and west are not located at the midpoint along the elliptical horizon between south and north. Because of the distortion involved in trying to map a threedimensional hemisphere onto a flat page, the east and west cardinal points are located north along the ellipse from their respective midpoints. - The zenth is located directly overhead for all observers and the zenith never moves. To locate and fix the position of the zenith, tape both ends of a piece of string between N and S (or noon and midnight) on the star finder, across the entire visible sky. Use an ink pen to place a dot on the string midway between the northern and southern horizons. Do not remove the string. The dot is the zenith. (Notice, as the sky moves, the zenith remains stationary and directly overhead.) - The brass rivet, about which the entire star field rotates, is the celestial north pole. Polaris happens to be located at this position. (In the real sky, all stars seem to wheel or revolve around this point.) The star finder is a device that aids in locating celestial objects when viewing the sky. Its design enables an observer to determine valuable information such as rising time, setting time, position, etc. The instructor will provide details during the lab time, but some information requires additional emphasis: - When using the star finder for actually locating celestial objects for viewing, it must be held overhead, with the compass points on the star finder matching the compass points in reality. (You may have noticed that east and west are reversed when looking down on the star finder.) - The entire star field contained within the open ellipse on the star finder represents the sky for the time and date shown. The edges of the ellipse correspond to the observer's horizon. - East and west are not located at the midpoint along the elliptical horizon between south and north. Because of the distortion involved in trying to map a threedimensional hemisphere onto a flat page, the east and west cardinal points are located north along the ellipse from their respective midpoints. - The zenith is located directly overhead for all observers and the zenith never moves. To locate and fix the position of the zenith, tape both ends of a piece of string between N and S (or noon and midnight) on the star finder, across the entire visible sky. Use an ink pen to place a dot on the string midway between the northern and southern horizons. Do not remove the string. The dot is the zenith. (Notice, as the sky moves, the zenith remains stationary and directly overhead.) - The brass rivet, about which the entire star field rotates, is the celestial north pole. Polaris happens to be located at this position. (In the real sky, all stars seem to wheel or revolve around this point.)
To determine which zodiacal constellations are visible in the western sky at 6 am on January 25, refer to the star finder and locate the corresponding positions on the celestial map.
The star finder is a helpful tool for locating celestial objects and obtaining information about the night sky. To use the star finder effectively, it should be held overhead with the compass points aligned to match the actual compass points. Keep in mind that east and west may appear reversed when looking down at the star finder.
The star finder consists of an open ellipse representing the sky for a specific time and date. The edges of the ellipse correspond to the observer's horizon. East and west are not located at the midpoint along the elliptical horizon due to the distortion caused by representing a three-dimensional hemisphere on a flat page. The east and west cardinal points are positioned north along the ellipse from their respective midpoints.
Locating the zenith is essential, as it is directly overhead for all observers and remains stationary. To find the zenith, tape both ends of a string between the north and south points on the star finder, spanning the entire visible sky. Mark a dot on the string midway between the northern and southern horizons using an ink pen. This dot represents the zenith.
By using the star finder and aligning it with the correct date and time, you can identify the zodiacal constellations visible in the western sky at 6 am on January 25. Simply locate the corresponding constellations on the star finder and observe their positions in the western region of the celestial map.
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Elements that naturally exist as two atoms are called _____.
A) biatomic
B) bimolecular
C) dimolecular
D) diatomic
Answer:
D) diatomic
Explanation:
Diatomic elements form molecules with two atoms together.
Hope It Helps
Sorry If I'm Wrong
Craig is modeling the discovery of electromagnetism. Which procedure should he use?
A. moving a magnet into a coil of wire in a closed circuit
B. moving a magnet into a coil of wire in an open circuit
C. bringing a compass near a wire that has no electric current
D. bringing a compass near a wire that has an electric current
Answer:
A
Explanation:
moving a magnet into a coil of wire in a closed circuit
Craig, move a magnet into a coil of wire in a closed circuit for the discovery of electromagnetism. Option A is correct.
What is electromagnetism ?The physical interplay of electric charges, magnetic moments, and the electromagnetic field is known as electromagnetism.
The electromagnetic field can be static, moving slowly, or forming waves.
Craig, move a magnet into a coil of wire in a closed circuit for the discovery of electromagnetism.
Hence, option A is correct.
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If the work function of a material is such that red light of wavelength 700 nm just barely initiates the photoelectric effect, what must the maximum kinetic energy of ejected electrons be when violet light of wavelength 400 nm illuminates the material?.
The maximum kinetic energy of ejected electrons is 2.13 × 10⁻¹⁹ J.
The photoelectric effect is the emission of electrons while electromagnetic radiation, along with mild, hits a cloth. Electrons emitted in this way are referred to as photoelectrons.
The photoelectric effect is a phenomenon in which electrically charged particles are launched from or inside a fabric while it absorbs electromagnetic radiation.
The effect is regularly defined because of the ejection of electrons from a metallic plate while light falls on it. Einstein theorized that when a photon falls on the floor of a metallic, the complete photon's power is transferred to the electron. part of this power is used to dispose of the electron from the steel atom's hold close and the rest is given to the ejected electron as kinetic energy.
Using photoelectric effect:-
KEmax = hv - Ф
Ф = hv₀ = hc/λο
Hence, KEmax = hc/λ - hc/λο
= hc ( 1/λ - 1/λ)
Substituting the value
KEmax = (6.6 × 10⁻³⁴ )×(3× 10⁸)(1/400 × 10⁻⁹ - 1/700 × 10⁻⁹)
KE max = 2.13 × 10⁻¹⁹ J
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Malia has developed Type II Diabetes. When she eats, her body
does not release the proper amount of insulin needed to balance
her blood sugar (glucose) levels. Which life function is most
threatened by Malia's disease?
Select one:
a. Growth
b. Movement
c. Metabolism
d. Excretion
Answer:
The correct option is c.
Explanation:
Metabolism is a sum of anabolic and catabolic reactions. The body's inability to produce/synthesize enough insulin is the cause of type II diabetes. Generally, metabolism is the process in which most compounds (proteins, carbohydrates and lipids) are produced (anabolism) or broken down (catabolism) in the body. Insulin is a protein that can be produced in less amount due to metabolic disorder in the body.
Maria's disease means she already has an exponentially high amount of blood sugar against the required insulin to balance it out, hence the disease already slowed down her rate of metabolism (catabolism) of blood sugar EXCEPT she decides to increase of metabolism by medication and exercise.
Two parents are having a child The father has freckles which are a dominant trait The mother does not have trecktes Find the possibility of the chad having tracks.
Answer:
2:3
Explanation:
mathqway
a rifle is aimed horizontally at a target 86.48 m away. the bullet hits the target 2.58 cm below the aim point. what was the bullet's flight time?
After applying the kinematic relation, the bullet’s flight time would be 0.0726 s
The kinematic equations are a set of four equations that can be used to make predictions about information regarding an item's motion that is unknown, provided that other information regarding the motion of the object is known. The equations can be applied to any motion that can be characterized as either having a constant velocity (an acceleration of 0 m/s/s) or a constant acceleration (an acceleration of 0 m/s/s), and they can be used to analyze both types of motion. They are never permitted to be used during any time frame in which the acceleration is undergoing a change.
In this case we will be using the third kinematic relation:
d = vt + ½ gt²
in this case, we are given that:
d = (2.58 cm × ( 1 m ÷ 100 cm))
v = 0 m/s
g = 9.8 m/s
Thus, the bullet’s flight time would be:
(2.58 cm × ( 1 m ÷ 100 cm)) = (0 m/s) × t + ½ (9.8 m/s) × t²
½ (9.8 m/s) × t² = (2.58 cm × ( 1 m ÷ 100 cm))
T = √0.005265
T = 0.0726 s
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are eggs a element, a compound, or a mixture
Answer:
I'm gonna go with compund
Answer: a mixture because it is made out of some other substances.
Explanation:
Una onda se propaga en un medio P, de tal forma que recorre una distancia 8D en un tiempo 4T. La misma onda cuando se propaga por un medio Q recorre una distancia 4D en el mismo tiempo anterior, es decir, en 4T. Respecto a esta onda es correcto afirmar que *
Sabemos todo material tiene asociado un coeficiente de difracción n.
De tal forma que la velocidad de una onda electromagnetica que viaja a travez de dicho material, será:
v = c/n
donde c es la velocidad de la luz.
Con la información dada, podremos concluir que el coeficiente de difracción del medio Q es dos veces el del medio P.
Ahora veamos como llegamos a esto:
Sabemos que en el medio P, la onda recorre una distancia 8*D en un tiempo 4*T
entonces la velocidad de la onda en el medio P es:
\(V_p = \frac{8*D}{4*T} = 2*\frac{D}{T}\)
Mientras que en el medio Q, recorre una distancia 4*D en un tiempo 4*T, por lo que la velocidad en el medio Q será:
\(V_Q = \frac{4*D}{4*T} = \frac{D}{T}\)
Podemos ver que:
\(V_P = 2*V_Q\)
Reescribiendo las velocidades como el cociente entre la velocidad de la luz y el correspondiente coeficiente de difracción obtenemos:
\(\frac{c}{n_P} = 2*\frac{c}{n_Q} \\\\n_Q = 2*n_P\)
Es decir, podemos concluir que el coeficiente de difracción del medio Q es dos veces el del medio P.
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A circuit consists of a resistor, a battery and an ammeter. The ammeter shows a current of 0.2A when the resistor is 120. If you want to get a current of 0.15A, what resistor should be used to replace the current resistor?
Answer:
A resistor of 160 ohms should be used to replace the current resistor
Explanation:
Applying,
Ohm's Law
V = IR................... Equation 1
Where V = Voltage of the battery, I = current, R = Resistance
From the question,
Given: I = 0.2 A, R = 120 ohms.
Substitute these values into equation 1
V = 0.2×120
V = 24 V
IF a current of 0.15 A is required,
make R the subject of equation 1
R = V/I............... Equation 2
Given: V = 24 V, I = 0.15 A
Substitute these values into equation 2
R = 24/0.15
R = 160 ohms.
Hence a resistor of 160 ohms should be used to replace the current resistor
Descartes and Snell worked around the time of Kepler and Galileo. Is this true or false?
René Descartes (1596-1650) was a creative mathematician of the first order, an important scientific thinker, and an original metaphysician.
Willebrørd Snell (1591-1626) was a Dutch astronomer, mathematician, and scientist who is famously known for the law of refraction.
Johannes Kepler (1571-1630) was a German astronomer, mathematician, astrologer, natural philosopher, and writer of music.
Galileo Galilei (1564-1642) was an astronomer, physicist, and mathematician who made fundamental contributions to the sciences of motion and astronomy.
Notice that the period of Descartes and Snell overlap with the period of Kepler and Galileo.
Therefore, we can conclude that the given statement is true.
Amount of heat required to raise temperature of 10gm water through 2 deg * C is
The amount of heat required to raise the temperature of 10 g of water through 2°C is 83.68 Joules.
To determine the amount of heat required to raise the temperature of 10 g of water through 2°C, we will use the formula:Q = m × c × ΔT
Where Q is the amount of heat required, m is the mass of the substance being heated, c is the specific heat capacity of the substance, and ΔT is the change in temperature.
So, for 10 g of water, the mass (m) would be 10 g.
The specific heat capacity (c) of water is 4.184 J/(g°C), so we'll use that value.
And the change in temperature (ΔT) is 2°C.
Substituting these values into the formula, we get:Q = 10 g × 4.184 J/(g°C) × 2°CQ = 83.68 Joules
Therefore, the amount of heat required to raise the temperature of 10 g of water through 2°C is 83.68 Joules.
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!! i will mark as brainliest so pls answer quick !!
The student becomes negatively charged because of the friction between her socks and the carpet.
Explain why the friction causes the student to become charged
Answer:
A student becomes negatively charged because of the friction between his socks and the carpet. ... The electrons get rubbed and move towards the carpet so the carpets electrons move away and the student becomes negatively charged.
5. A mineral called Iron pyrite forms crystals that are shaped like rectangular boxes. One such crystal is 8.6 - 10-meters tall, 5.0.10-2 meters wide, and 7.8. 10-2 meters deep. Ignoring
significant figures, what is the volume of this rectangular crystal?
1.366.10 m
3.354. 10-m
1.366. 10-
3.354.10
the volume of this rectangular crystal is 3.354 × 10⁻⁴ m³.
Option b) 3.354 × 10⁻⁴ m³ is the correct answer.
Given the data in the question;
Length of the rectangular box \(=8.6 * 10^{-2} m\)
Width of the rectangular box \(=5.0 * 10^{-2} m\)
Depth of the rectangular box \(=7.8 * 10^{-2} m\)
Now, we know that formula for calculating the volume of a rectangular box or prism is;
Volume = Length × Width × Height or depth
So, we simply input our given values into this formula
\(Volume = ( 8.6 * 10^{-2}) ( 5.0 * 10^{-2}) ( 7.8 * 10^{-2})\)
\(Volume = 0.0003354 m\)
\(Volume = 3.354 * 10^{-4} m^3\)
Therefore, the volume of this rectangular crystal is 3.354 × 10⁻⁴ m³
Option b) 3.354 × 10⁻⁴ m³ is the correct answer.
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