Volume is calculated as Length times Width times Height. Volume Dimensional Formula: [M0 L3 T0] M3 is the SI unit of volume.
What does physics mean when it refers to volume?L3 dimension Volume has dimension L3, or length cubed, and is the product of three lengths. Speed has the L/T or LT-1 dimension of length over time. Dimension M/L3, also known as mass over length cubed, or ML-3, describes the volumetric mass density.
What are the three dimensions of volume?Volume is a three-dimensional quantity that accounts for a figure's total length, width, and height.
Is the volume formula Lxwxh?that the dimensions of a rectangular prism are length, width, and height!
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Advances in public health and medicine were some of the main reasons population ______ in the 18th century.
Advances in public health and medicine were some of the main reasons the population grew in the 18th century.
Public health focuses on illness prevention, whereas medicine focuses on the prevention, diagnosis, and treatment of patients. The primary instruments of the medical professional are medication, surgery, and other types of personalized intervention.
Vaccine invention and widespread usage, smallpox eradication, significant decreases in infectious disease outbreaks, and the rise and fall of various important chronic illnesses are among the contributions most noted for their influence on mortality and lifespan.
Public health evolved via trial and error and developing scientific medical knowledge, which was sometimes contentious and was sometimes prompted by war and natural calamities. The necessity for organized health protection arose as communal life evolved, particularly with urbanization and social changes.
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What is the net force on an apple that weighs 1 n when you hold it at rest above your head? What is the net force on the apple when you release it?
Answer:408849499400504053-2
Explanation:kfnkdtozskf
100 POINTS, MULTIPLE QUESTIONS, NEED HELP ASAP
1. Does increasing the force affect the amount of work done climbing the stairs? Does increasing the distance affect the amount of work done climbing the stairs? How would you describe the mathematical relationship between these two parameters? Explain your answer using your data and graphs.
2. Does increasing the work affect the amount of power generated climbing the stairs? Does walking up the stairs faster affect the power generated? Explain your answer using your data and graphs. How would you describe the mathematical relationship between these two parameters? Notice the relationship when work is constant or when only time is constant.
3. Another student says that “For this experiment, the person with the most mass does the most work and has the most power.” How would you try to prove or disprove this conclusion using your data? Do you think that the student is correct? Why or why not?
4. Would the work that you do in walking up your flight of stairs differ in any of the following situations?
• Running up your flight of stairs
• Climbing a wall of an identical height to your stairs
• Walking up a long ramp to a height identical to your stairs
Explain your answer based on what you know about work, forces, and power.
I hope this helps, and drop me a crown if you feel like I deserve it please
an electron beam strikes a zn target. if you adjust the voltage accelerating the electron you will get different characteristic x-ray emission. for each of the accelerating voltages below give the shortest characteristic x-ray the zn will emit and illustrate that transition on an energy diagram.
For different accelerating voltages, the energy of the electrons in the beam will be different, resulting in different shortest characteristic X-ray emissions and different transitions on the energy diagram.
The energy of the X-ray photon depends on the difference in energy between the energy level of the ejected electron and the energy level of the electron filling the vacancy.
To illustrate this transition on an energy diagram, you can represent the energy levels of the electrons in the zinc atom as horizontal lines, with the ground state at the bottom and higher energy levels above it.
When an electron from the beam collides with a K-shell electron, the K-shell electron is ejected, creating a vacancy.
The vacancy is then filled by an electron from a higher energy level, emitting a characteristic X-ray photon.
The energy of the X-ray photon is represented by a vertical line connecting the energy level of the ejected electron and the energy level of the electron filling the vacancy.
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A student is performing an experiment comparing sound and light waves. The student gathers the following data.
A 3 column table with 3 rows labeled Speed of Sound. The first column is labeled medium with entries ice, water, steam. The second column is labeled temperature in degrees Celcius with entries 0, 25, 100. The last column is labeled speed of sound in meters per second with entries 3200, 1500, 346. A second 3 column table with 3 rows labeled speed of light. The first column is labeled medium with entries air, water, glass. The second column is labeled index of refraction with entries 1.00, 1.33, 1.57. The last column is labeled speed of light in meters per second with entries 2.99 times 10 Superscript 8 Baseline, 2.26 times 10 Superscript 8 Baseline, 1.91 times 10 Superscript 8 Baseline.
What conclusion does the student most likely make based on this data?
The conclusion that the student most likely make based on this data is that D. Tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.
How to convey the informationBecause sound waves must travel through a material medium in order to propagate, they are mechanical waves. When atoms or particles are packed closely together to form a solid, light waves are typically slowed, which increases their speed when they bounce off of one another.
Thus, we can draw the conclusion that whereas tightly packed particles in solids slow down light waves, sound waves cause particles to bounce off of one another, causing them to move more quickly through solids.
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What conclusion does the student most likely make based on this data? Light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through.
All sound waves always have the same energy, so the temperature of the medium does not affect wave speed.
Light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas.
Tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.
URGENT! A wave is modeled with the function y(x, t) = (0.50 m)sin 0.50 m−1 x − 0.20 s−1 t + 9 . Find the following.
The properties of the wave are
a. The amplitude
A = 0.50 m
b. The wave number
k = 0.50 m⁻¹
c. The angular frequency
ω = 0.20 s⁻¹
d. The wave speed
v = 0.4 m/s
e. The phase shift
Ф = π/9
f. The wavelength
λ = 12.57 m
g. The period
T = 31.42 s
What is a wave?A wave is a disturbance in space that carries energy from one point to another.
How to find the properties of the wave?Given that a wave is modeled with the function y(x, t) = (0.50 m)sin 0.50 m−1 x − 0.20 s−1 t + π/9). To find its properties, we compare it with the general wave equation y(x,t) = Asin(kx - ωt + Ф) where
A = amplitude, k = wave number, ω = angular frequency of wave and Ф = phase shift.Comparing both equations
a. The amplitudeA = 0.50 m
b. The wave numberk = 0.50 m⁻¹
c. The angular frequencyω = 0.20 s⁻¹
d. The wave speedThe wave speed v = ω/k
= 0.20 s⁻¹/0.50 m⁻¹
= 0.4 m/s
e. The phase shiftФ = π/9
f. The wavelengthSince the velocity of the wave v = fλ where
f = frequency of wave = ω/2π and λ = wavelengthSo, making λ subject of the formula, we have
λ = v/f
= v/ω/2π
= 2πv/ω
= 2π × 0.4 m/s ÷ 0.2 s⁻¹
= 2π × 2 m
= 4π m
= 12.57 m
g. The periodThe period of the wave T = 1/f where f = frequency of wave = ω/2π
So, T = 1/f
= 1/ω/2π
= 2π/ω
= 2π/0.2 s⁻¹
= 10π s
= 31.42 s
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An airplane has an air speed of 120.2 m/s and flies due north, but the wind blows from the northeast to the southwest at 48.5 m/s. What is the plane’s actual ground speed?
The northeast to the southwest at 48.5 m/s ,The plane’s actual ground speed is 124 m / s.
What is the plane’s actual ground speed?An airplane has an air speed of 120.2 m/s, the southwest at 48.5 m/s.
The hypotenuse of a right triangle is created by multiplying the plane's north direction, which is perpendicular to the wind's direction of force, by these two vectors.
Pythagorean theorem is used to determine the velocity vector's magnitude: V V2 = V 2 p l a n e + V 2 w I n d
V 2 P G = ( 120 ) 2 + ( 48.5 )2 V P G ≈ 124 m / s
The northeast to the southwest at 48.5 m/s ,The plane’s actual ground speed is 124 m / s.
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The velocity distribution for laminar flow between stationary parallel plates is given by :
(u/u_max) = 1 - (2y/h)^2
where "h" is the distance separating the plates and the origin is halfway between the plates. Consider the flow of water at 15 degrees Celsius with a maximum speed of 0.05 m/sec and h= 5 mm. Calculate the FORCE on a 0.3 m^2 section of the lower plate, and give its direction
The value of the force is 6.012 × 10⁻⁴ N and direction is downward, as it is the force exerted by the upper plate on the lower plate.
What is force?Force is a physical phenomenon that is the result of interactions between objects, and is defined as a push or pull on an object. It can be created by various forms of energy, such as electrical, mechanical, thermal, or magnetic.
The force on the lower plate is equal to the shear stress on the plate times the area of the plate. The shear stress is determined using the velocity profile, which in this case is given by (u / u_max ) = 1 - ( 2y/h )^2.
Plugging in the values for the maximum speed, distance between the plates, and temperature, we can calculate the dynamic viscosity of water as η = 0.001002 Pa * s.
The shear stress is then calculated as τ = η*(du/d y). Taking the derivative of the velocity profile and plugging in the values for the maximum speed and distance between the plates, we get τ = η * ( 4u_max/h ).
Finally, the force on the 0.3 m^2 section of the lower plate is calculated as F = τ*A, where A is the area of the plate. Plugging in the values for the shear stress and plate area, we get F = (0.001002 Pa * s ) * (4 * 0.05 m/s/5 mm) * (0.3 m^2)
= 0.0006012 N.
= 6.012 × 10⁻⁴ N
The direction of the force is downward, as it is the force exerted by the upper plate on the lower plate.
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1 10) A radioactive substance decayed to of the initial no's after 50 128 days. Find the half-life of radioactive substance. [2074]
Answer:
The half-life of a radioactive substance is the amount of time it takes for half of the initial amount of the substance to decay. In this case, the initial number of atoms decayed to half of the initial number after 128 days. So the half-life of the radioactive substance is 128 days.
Must post first.
After reading Chapter 7. describe how genetics and environment affect intelligence.
Do you believe your level of intelligence was improved because of the stimuli in your childhood environment? Why or why not?
Even if a kid has high IQ genes, if he or she grows up in a depressed setting with poor nutrition or little access to cerebral stimulation, the child may not perform well on IQ tests. The features and architecture of the brain define the intellect of everyone, including you and me. These are the outcomes of our inherited genes. Environment encounters can lower intellect (disease, toxins, and head trauma). In early children, there is a common environmental variance, but it disappears about age 12. The remaining trends include a growing IQ heredity and a decreasing variance related to the nonshared environment.
Thanks.
Ten students stand in a circle and are told to make a transverse wave. What best describes the motion of the students?
The students would need to wave hands up and down to have a transverse wave.
What is a transverse wave?A transverse wave is a type of wave where the vibration is perpendicular to the direction of wave propagation.
We have to note that in this case we have been told that students stand in a circle and are told to make a transverse wave. The students would have to wave the hands up and down to make a transverse wave. In this was the wave that we are able to obtain form the movement of the students is found to be transverse.
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a 85-kg person is riding in a car moving at 19.5 m/s (assume this is the positive direction) when the car runs into a bridge abutment. this problem will illustrate why the invention of the airbag dramatically improved the safety of automobiles.
The invention of the airbag greatly improved the safety of automobiles because, without airbags, the 85-kg person would experience a large force upon impact with the abutment.
What is invention?Invention is the process of creating something new, or discovering a solution to a problem that has never been solved before. It is the art of making something out of nothing and turning it into a reality. Invention is the driving force behind human progress, and has enabled us to develop to the point where we are today.
Without the airbag, this force would be equal to the person's mass multiplied by the acceleration due to the sudden stop of the car, which is equal to -19.5 m/s^2.
This means that the person would experience a force of 1,671.25 N upon impact. This force is potentially enough to cause serious injury or death.
However, when airbags are present, the airbag will absorb some of the force of the impact, reducing it to a much lower level. This is because the airbag will quickly inflate, which will help to reduce the acceleration of the person upon impact. The force experienced by the person will be much lower, potentially saving the person from serious injury or death.
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a teacher pushes a bookshelf using force of 10 newtons. if the teacher moved the bookshelf 20 feet how much work did she do?
The work done by the teacher can be calculated using the equation:
work = force x distance x cos(θ)
Here, the force is 10 N, the distance is 20 feet (converted to meters) and the angle between the direction of force and distance is 0 degrees, so cos(0) = 1.
So, work = 10 N x 20 feet x 0.3048 m/foot x 1 = 60.96 J
The teacher did 60.96 joules of work.
2. transportation in the u.s. emitted 1.8 billion tons of greenhouse ga which of the following was responsible for 7.5 percent of those emissions?
7.5 percent of the green house gases emission resulted from industrial, agricultural, and waste management processes.
The greenhouse gas emissions of the transportation industry account for around 28 percent of all emissions in the U.S., making it the largest contributor to U.S. greenhouse gas emissions. In 2021 this equated to 1.8 billion tons of carbon dioxide being released into the atmosphere.
About 92 percent (or 4.6 BMT) of U.S. CO2 emissions stemmed from burning fossil fuels to produce energy. The remaining 7.5 percent of those emissions were unrelated to energy production; they resulted from industrial, agricultural, and waste management processes.
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Water diversion projects may involve the movement of water to dry regions using? A.canals
B.dams
C.reservoirs
D.sprinklers
Water diversion projects may involve the movement of water to dry regions using canals
Hence, option (a) is the correct choice.
Water diversions are made up of a system of structures and measures that intercept clear surface water runoff upstream of a project site, transport it around the work area, and discharge it downstream with minimal water quality degradation for either project construction operations or diversion construction.
Water diversion projects may involve the movement of water to dry regions using canals, reservoirs, and/or pipelines.
Dams can be used to store water for later use in these projects, but sprinklers are typically not involved in water diversion projects.
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9) water stored in a dam is potential energy-
this is a give reason give me answer
Potential energy is the energy that an object has as a result of its position. Water contained in a dam has potential energy because it is elevated above the surrounding terrain.
Explain about the potential energy?An object's position-based energy is referred to as potential energy. As a result of being higher off the ground than other water storage areas, dam water has potential energy.
Water would flow downriver if there were no dams. The dam, however, restricts the water's flow and collects it there instead. The water now stands higher than the ground in relation to it. The water will possess stored potential energy because it is elevated above the earth.
The position of a rock on a cliff's brink. The rock will be moving if it falls, which will cause the potential energy to be transformed into kinetic energy. a longbow with a stretched-out elastic string.
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the coordinates of the chameleon are (1.95m,1.4m) . in the following questions, convert the cartesian coordinates of the chameleon into the requested polar coordinates.
the coordinates of the chameleon are (1.95m,1.4m) . in the following questions, convert the cartesian coordinates of the chameleon into the requested polar coordinates.
The polar coordinates of the point (1.95m, 1.4m) can be calculated as follows:
The radial distance (r) is given by the Pythagorean theorem: r = sqrt(1.95^2 + 1.4^2) = 2.39mThe angle (θ) can be calculated using the arctangent function: θ = atan2(1.4, 1.95) = 0.67 radiansSo, the polar coordinates of the chameleon are (2.39m, 0.67 radians).
About Polar CoordinatesThe polar coordinate system (polar coordinate system) in mathematics is a 2-dimensional coordinate system in which each point in the plane is determined by a specified distance from a given point and an angle in a specified direction.
Polar coordinates are coordinates on the Cartesian which are located on a circle x2+y2=r2 , so polar coordinates are written based on the radius of the circle (r) and the angle formed with the positive X axis
The Cartesian coordinate formula is (x,y), where x = abscissa value (X axis) and y = ordinate value (Y axis). For more details, consider the example of a Cartesian diagram as follows. In the diagram above, there are two coordinate points, namely point A and point B.
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A baseball pitcher throws a baseball with a speed of 36 m/s . In throwing the baseball, the pitcher accelerates the ball through a displacement of about 3.5 m, from behind the body to the point where it is released as shown in (Figure 1) . Estimate the average acceleration of the ball during the throwing motion. Express your answer using two significant figures.
The time taken to accelerate the ball up to 3.5 m is 0.097. Then the acceleration of the ball will be 740 m/s².
What is acceleration ?The acceleration of a moving body is the rate of change in its velocity. It is a vector quantity having magnitude and direction.
Given that, speed v = 36 m/s
displacement s = 3.5 m
time = distance/speed
t = 3.5 m/ 36 m/s = 0.097 s.
then s = ut + 1/2 at²
initial velocity u = 0
then 3.5 m = 1/2 at²
a = 2 × 3.5 m/(0.097 s)²
= 740 m/s²
Therefor, the acceleration of the baseball is 740 m/s².
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10. A tube in which the
cross-sectional area gradually decreases to a minimum diameter in its center section is called a “___”
A tube in which the cross-sectional area gradually decreases to a minimum diameter in its center section is called a “_converging duct__”
What is a tube?Tube is a pipe shape, a cylinder with a hollow space inside. Tubes are used in applications such as medical devices that require a precise outside diameter. The outside diameter is important since it will indicate how much it can hold as a stability factor.
Therefore, Tube is a cylindrical, hollow piece with a round or oval profile, made of plastic, paperboard, aluminum, or other metal.
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An electron passes point A moving at 6.5 Mm/s. At point B the electron has come to a complete stop. Find the potential difference VAB.
The value of the potential difference VAB = ~5.3 x 10^-19 J.
Potential difference (V) is defined as the work done per unit charge to move a charge from one point to another.
The potential difference between two places in a circuit is the difference in the amount of energy that charge carriers have. **Volts measured: ** Potential differential (p.d.) is also known as voltage and is measured in volts (V).
Any two points' potential difference The amount of work done in transporting a unit positive charge without acceleration from one location to another along any path between the two points in the electric field is specified.
Since the electron has come to a complete stop at point B, the work done to bring it to that point is equal to its initial kinetic energy.
VAB = (1/2) * m * (v^2) / e,
where m is the mass of the electron,
v is its velocity at point A,
and e is the electronic charge.
Substituting the given values, we get:
VAB = (1/2) * 9.11 x 10^-31 kg * (6.5 x 10^6 m/s)^2 / (1.6 x 10^-19 C)
= ~5.3 x 10^-19 J.
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What is an increase of biodiversity over time after a natural or man-made disturbance
An increase of biodiversity over time after a natural or man-made disturbance is known as ecological succession.
What is force?In physics, force is an influence that can cause an object to accelerate, change its direction of motion, or deform. Force is defined as any interaction that can modify the motion of an object. It is a vector quantity, meaning that it has both magnitude (or strength) and direction. Force is usually measured in units of Newtons (N) in the International System of Units (SI). The Newton is defined as the amount of force required to accelerate a mass of one kilogram at a rate of one meter per second squared.
Here,
Ecological succession is the gradual process by which a community of living organisms changes over time after a disturbance has occurred. Disturbances can come in many forms, such as natural disasters like wildfires, hurricanes, or volcanic eruptions, or human-caused disturbances like clearcutting of forests or construction of roads. After a disturbance, the ecological community of the affected area undergoes a series of changes, starting with the colonization of new species that are able to survive and grow in the disturbed environment.
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Two cars, A and B , travel in a straight line. The distance of A from the starting point is given as a function of time by xA(t)=αt+βt2 , with α=2.60m/s and β=1.20m/s2 . The distance of B from the starting point is xB(t)=γt2−δt3 , with γ=2.80m/s2 and δ=0.20m/s3
The cars A and B are travelling through a straight line, and functions of the distance from starting point are given for both. We can use the equations as well as the differential equations to answer the questions.
The first question is which car starts first. For this we have to calculate the velocity.Velocity = dX/dt, at starting point, t=0
For car A, xA = αt+βt²
d xA/dt = α+ 2βt
= 2.60 + 1.20×0 = 2.60m/s
For car B, xB=γt²+δt³
d (Xb)/dt = 2×γt +3δt² = 2×2.80×0 + 3×0.20×0 = 0
So the car A starts first.
Next we have to calculate at what points the cars meet,When both cars are at the same point xA= xB
αt+βt² = γt²-δt³
2.60×t + 1.20×t² = 2.80×t²-0.20t³
0.20t³-1.60t²+2.60t = 0
Dividing both sides by 0.20
t³-8t²+13 = 0
By solving the quadratic equations, t = 4+√3 or 4-√3
So the cars meets when t=4+√3 and t=4-√3
When the distance between cars are not increasing or decreasing, then xB-xA= 0
γt²-δt³- αt-βt² = xB-xA
d(xB-xA)/dt = 2γt-3δt² -α-2βt
= 2×2.80t - 3×0.20t²+2.60-2×1.20×t
= 0.60t²-8t+2.60
Solving the quadratic equation
t= 13 or t= 1/3
So the distance neither decreases nor increases at t=1/3s and t=13s
When accelerations are equalAcceleration= d²x/dt
For car A, d²xA/dt = 2β
For car B, d²xB/dt = 2γ+6δt
When acceleration of car A = acceleration of car B
2β = 2γ+6δt
2×1.20 = 2×2.80- 6×0.20t
1.2t = 5.60-2.40
t = 3.20/1.2 = 2.6 s
So accelerations of both car are equal when t= 2.6 s.
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The complete question is
Two cars, A and B , travel in a straight line. The distance of A from the starting point is given as a function of time by xA(t)=αt+βt2 , with α=2.60m/s and β=1.20m/s2 . The distance of B from the starting point is xB(t)=γt2−δt3 , with γ=2.80m/s2 and δ=0.20m/s
Which car is ahead just after they leave the starting point?
At what time(s) are the cars at the same point? Express your answer numerically. If there is more than one answer, enter each answer separated by a commas.
At what time(s) is the distance from A to B neither increasing nor decreasing? Express your answer numerically. If there is more than one answer, enter each answer separated by a comma.
At what time(s) do A and B have the same acceleration? Express your answer numerically. If there is more than one answer, enter each answer separated by a comma.
your engineering firm has been asked to determine the deceleration of a car during hard braking. to do so, you decide to measure the lengths of the skid marks when stopping from various initial speeds. your data are as follows: speed, v(m/s) skid length, x(m) 10 7 15 14 20 27 25 37 30 58
To determine the deceleration of a car during hard braking, you can use the equation a = (Vf^2 - Vi^2) / 2x, where Vf is the final speed, Vi is the initial speed, and x is the skid length. Using your data, we can calculate the deceleration as follows:
For the speed of 10 m/s, the deceleration is: a = (0^2 - 10^2) / 2*7 = -20/14 = -1.4 m/s^2For the speed of 15 m/s, the deceleration is: a = (0^2 - 15^2) / 2*14 = -45/28 = -1.6 m/s^2For the speed of 20 m/s, the deceleration is: a = (0^2 - 20^2) / 2*27 = -80/54 = -1.5 m/s^2For the speed of 25 m/s, the deceleration is: a = (0^2 - 25^2) / 2*37 = -125/74 = -1.7 m/s^2For the speed of 30 m/s, the deceleration is: a = (0^2 - 30^2) / 2*58 = -180/116 = -1.6 m/s^2From this, it is clear that the deceleration increases as the initial speed increases.
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where p is the pressure of a gas, v is the volume, n is the number of moles of a gas, r is a constant, and t is temperature in degrees kelvin. the ideal gas law perfectly applies to particles with no mass, no intermolecular interactions, and no true volume. however, real molecules do not adhere perfectly to the ideal gas law. 17. the relationship between total energy, kinetic energy, and potential energy could best be described as:
The relationship between total energy, kinetic energy, and potential energy can be described as follows:
Total energy is the sum of kinetic energy and potential energy. Kinetic energy is the energy of motion and is proportional to the mass and the square of the velocity of the object. Potential energy is the stored energy of an object due to its position in a field of force, such as gravity. The greater the mass and the greater the distance between two objects, the greater the potential energy.Kinetic energy is the energy an object has due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.
Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: KE = 1/2 mv2. Kinetic energy is a property of a moving object or particle and depends not only on its motion but also on its mass. The higher the mass and the faster the object or particle is moving, the greater its kinetic energy will be.
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If the speed of the electron changes from 9 x 10^6 m/s to 2 x10^6 m/s, what is the change in its kinetic energy?
The definition of kinetic energy for a mass m object moving at a velocity v is... One can demonstrate this by showing that if an object's height has increased by an amount y, then.
What do you mean by kinetic energy?A thing or particle's ability to move gives it kinetic energy, a form of power. An object source of globally through work, advancing and collecting kinetic energy as a result of being exposed to a net force.
The kinetic energy equation: what is it?The equation for kinetic energy is K E = 1 2 m v 2. KE stands as kinetic energy, where m stands for the total body weight and v for its speed.
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Plot the volume of a spherical tank as a function of its radius as a semi-log plot. Use a range of radius of (0, 10). Show proper labels on the axes. Give the plot a suitable title.
Hint: Volume of a spherical tank= 4/3πr^3
.
The volume of a spherical tank with a radius of (0, 10) is calculated as 4/3πr3, or 4/3π × 153 = 14,137 m3.
The volume of a sphere is calculated using the formula V = 4/3πr³, where r is the radius. The volume of a cylindrical tank with a radius of 15 m and a height of 20 m is calculated as πr2h, or π × 152 × 20 = 11,309 m3.
Therefore, the ratio of the volume of the spherical tank to the volume of the cylindrical tank is 14,137/11,309 = 1.24.
This means that the spherical tank has 24% more volume than the cylindrical tank.
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the reason the velocity we measured was lower than the velocity we predicted is that some of the kinetic energy of the marble was converted to thermal energy during the collision. also, after the collision, air friction and bending in the pendulum rod converted more kinetic energy into thermal energy.
Yes, Actually most of the kinetic energy lost here to thermal energy and sound. and there's also some energy imparted to the rest of the apparatus through the forward component of force the pendulum exerts on its upper support. the fraction lost for this totally inelastic collision is strictly dependent on the mass ratio of ball pendulum.
What is Velocity ?
The vector quantity of velocity describes the speed at which an object's position is changing. It is determined by dividing an object's displacement over a specified period of time. The standard unit of velocity is metres per second (m/s), and it has both magnitude and direction.
The velocity of an object can change over time due to acceleration, and if an object is moving in a circular path, it also has a component of velocity perpendicular to its direction of motion, known as centripetal velocity.
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Near the surface of the moon, the distance that an object falls is a function of time. It is given by d(t) = 2.6667t^2, where t is in seconds and d(t) is in feet If an object is dropped from a certain height, find the average velocity of the object from t = 1 sec. to t = 2
The average velocity of the object from t = 1 sec. to t = 2 is 8 feet / sec.
calculate the average velocity of the object from t = 1 sec. to t = 2?
Average velocity is change in position over change in time.
To calculate this, we can see where the object is at t = 1 and where the object is at t = 2.
At t = 1:
d(t = 1) = 2.667 * (1)2 = 2.667 ft
At t = 2:
d(t = 2) = 2.667 * (2)2 = 10.667 ft
Our change in position is 10.667 - 2.667 = 8 feet
Our change in time is 2 sec - 1 sec = 1 second
Our average velocity between t = 1 and t = 2 is then 8 feet / sec.
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A steel ring with a hole having area of 3.99 cm² is to be placed on an aluminum rod with cross- sectional area of 4.00 cm². Both rod and ring are initially at a temperature of 35.0 °C. At what common temperature can the steel ring be slipped onto one end of the aluminum rod?
imagine you are an alien from a world without flashlights. you make some observations on earth and develop a hypothesis that flashlights require batteries to work. you do an experiment where you show that twenty flashlights without batteries do not work. an important control experiment is to show
You do an experiment where you show that twenty flashlights without batteries do not work. An important control experiment is to show that the flashlights do work with batteries. So option d. is correct.
A controlled experiment is one in which everything is kept constant except for one variable. Usually, a bunch of data is carried to be a control group, which is generally the ordinary or usual form, and one or more additional groups are analyzed where all situations are similar to the control group and each other except for one variable. Sometimes it's crucial to transform more than one variable, but all of the other experimental conditions will be regulated so that only the variables being explored change. And what is estimated is the variable amount or the manner in which they change.
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Complete question:-
Imagine you are an alien from a world without flashlights. You make some observations on Earth and develop a hypothesis that flashlights require batteries to work. You do an experiment where you show that twenty flashlights without batteries do not work. An important control experiment is to show
a. the flashlights do not work without connecting the bulb to the batteries.
b. the flashlights do not work without batteries or bulbs.
c. the flashlights do not work without bulbs.
d. that the flashlights do work with batteries.
