In an experiment in space, one proton is held desk bound and every other proton is released from relaxation at a distance of 3.50 mm. After the proton is launched its initial acceleration is four.14*10^{five}
Given data:
Electrostatic force = kq^{2} /r^{2}
F = ma
ma = \(= kq^{2} /r^{2}\)
\(a = = kq^{2} /r^{2}m\) ....(1)
Here,
k = \(9*10^{-19} C\)
r = 3.50 mm
m = \(1.67 * 10^{-27}\)
Putting the details given above into equation 1
\(a = \frac{9*10^{9}(1.6*10^{-19})^{2} }{(2.5*10^{-3})^{2}*1.67*10^{-27} }\)
\(a = 4.14*10^{5}\)
Electrostatic forces, as an instance, pull or push on objects without genuinely getting into contact with them. while sure substances are rubbed collectively, a phenomenon known as "rate" may be transferred from one surface to some other. Uncharged gadgets are pulled by way of charged objects, which in turn may additionally push or pull towards different charged ones.
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Light of wavelength 550 nm falls on a slit that is 3.50×10 −3
mm wide. Estimate how far from the central maximum is the first diffraction maximum fringe if the screen is 10.0 m away?
The distance of the first diffraction maximum fringe from the central maximum is approximately 1.57 meters.
To estimate the distance from the central maximum to the first diffraction maximum fringe, we can use the formula for single-slit diffraction:
sinθ = mλ / a
where θ is the angle to the first diffraction maximum, m is the order number (m = 1 for the first maximum), λ is the wavelength of the light, and a is the slit width.
First, convert the given values to the appropriate units:
λ = 550 nm = 550 × 10⁻⁹ m
a = 3.50 × 10⁻³ mm = 3.50 × 10⁻⁶ m
Now, plug the values into the formula:
sinθ = (1)(550 × 10⁻⁹ m) / (3.50 × 10⁻⁶ m)
sinθ ≈ 0.157
To find the distance (y) from the central maximum to the first diffraction maximum fringe, use the small angle approximation:
tanθ ≈ sinθ ≈ y / L
where L is the distance to the screen (10.0 m). Rearrange the equation to solve for y:
y ≈ L × sinθ
y ≈ (10.0 m)(0.157)
y ≈ 1.57 m
So, the first diffraction maximum fringe is approximately 1.57 meters away from the central maximum.
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Which of the technologies could mostly like be found in a wearhouse
You are looking through a physicicst's laboratory notebook and notice two number for the friction between a block of wood and a laboratory bench. The numbers are 8 N and 11 N. Which refers to static friction and which refers to kinetic friction?
The static friction is 11N and kinetic friction is 8N between a block of wood and a laboratory bench.
Static friction is a force opposing relative movement and it happens at the connection point between the bodies, yet additionally inside the bodies, as in the event of liquids. The idea of friction coefficient was first formed by Leonardo da Vinci. The extent of the coefficient of still up in the air by the properties of the surfaces, environmental elements, surface highlights, presence of the oil, and so on.
Kinetic friction is characterized as a force that demonstrations between moving surfaces. A body continuing on a superficial level encounters a force the other way of its development. The extent of the force will rely upon the coefficient of motor grinding between the two materials.
We know that static friction is the maximum force applied by the body,so here 11N is the maximum force,so static friction value will be 11N and kinetic friction value will be 8N.
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*(d) The map below shows the positions of some seismic earthquake stations in the UK.
nd
TE
At the seismic stations, scientists record the arrival of earthquake waves.
They use this data to locate where an earthquake happened.
Describe how they use the data to find out where an earthquake happened.
You may add to the diagram above or draw your own diagram to help with your
answer.
Vnjbsdjvbsdbv
(6)
Scientists use the arrival times of seismic waves at multiple stations, along with amplitude data, to triangulate the location of an earthquake epicenter.
To determine the location of an earthquake, scientists use the data recorded at seismic stations. The seismic stations are equipped with seismometers that detect and record seismic waves generated by the earthquake. These waves travel through the Earth's interior and arrive at different times at various seismic stations.To locate the epicenter of the earthquake, scientists analyze the time differences between the arrivals of primary (P) waves and secondary (S) waves at multiple stations. P waves are faster and arrive first, followed by slower S waves. By comparing the time interval between the arrival of P and S waves at different stations, scientists can calculate the distance of each station from the earthquake epicenter.
Using the distances from at least three seismic stations, scientists plot circles around each station on a map. These circles represent the potential distance between the station and the epicenter. The intersection of the circles determines the most likely location of the earthquake epicenter. This method is known as the "triangulation" technique.Additionally, the amplitude of the recorded seismic waves provides information about the earthquake's magnitude. By analyzing the amplitude data from different stations, scientists can estimate the earthquake's size or magnitude.
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Note- Sorry The diagram cannot be added .
What is the minimum magnitude of an electric field that balances the weight of a plastic sphere of mass 9.6 g that has been charged to -3.0 nC
The minimum magnitude of the electric field that balances the weight of the charged plastic sphere is approximately 0.313 N/C.
The force experienced by a charged object in an electric field is given by the equation:
F = qE
Where F is the force, q is the charge, and E is the electric field.
In this case, we are given the charge of the plastic sphere (-3.0 nC) and we need to find the minimum magnitude of the electric field that balances its weight.
The weight of the sphere can be calculated using the equation:
Weight = mass × gravitational acceleration
Given that the mass of the sphere is 9.6 g, we convert it to kilograms by dividing by 1000:
Mass = 9.6 g ÷ 1000 = 0.0096 kg
The gravitational acceleration is approximately 9.8 m/s².
Weight = 0.0096 kg × 9.8 m/s² = 0.09408 N
To balance the weight, the electric field must exert an upward force equal in magnitude to the weight. Therefore, we have:
F = qE
0.09408 N = (-3.0 × 10^(-9) C) × E
E = 0.09408 N / (-3.0 × 10^(-9) C)
E ≈ 0.313 N/C
Hence, the minimum magnitude of the electric field that balances the weight of the charged plastic sphere is approximately 0.313 N/C (newtons per coulomb).
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On a road trip, you travel from the 100 mile marker to the 250 mile marker in 2 hours. How fast are you going?
what is the resistivity of a cylindrical material wire whose whose length has a resistance of 2.0 ohms the diameter of a wire is 0.5 mm
The resistivity of a cylindrical material wire whose whose length has a resistance of 2.0 ohms the diameter of a wire is 0.5 mm is given as ρ = (2.0 Ω)\((1.96 x 10^-7 m^2) / L\)
How to calculate the resistivity of a cylinderThe resistivity (ρ) of a cylindrical wire can be calculated using the formula
ρ = RA / L
where:
R is the resistance of the wire,
A is the cross-sectional area of the wire, and
L is the length of the wire.
To calculate the cross-sectional area of the wire from its diameter
The diameter of the wire is given as 0.5 mm.
The radius (r) of the wire is therefore
r = d/2 = 0.5 mm / 2 = 0.25 mm
r = 0.25 mm = 0.00025 m
The cross-sectional area (A) of the wire is then:
\(A = \pi r^2 = \pi (0.00025 m)^2 = 1.96 x 10^-7 m^2\)
ρ = RA / L
ρ = R(A/L)
ρ = (2.0 Ω)\((1.96 x 10^-7 m^2) / L\)
To calculate the resistivity, information on the length of the wire must be available. Once this is available , we can substitute for it in the equation.
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Element Z has a half-life of 5 hours. After 1 day has passed, what percentage of Element Z would be remaining? After 1 day, % of Element Z would be remaining.
After 1 day has passed, approximately 6.25% of Element Z would be remaining.
The half-life of an element is the time it takes for half of the initial amount of the element to decay or transform into another element or isotopes. In this case, Element Z has a half-life of 5 hours.
To determine the percentage of Element Z remaining after 1 day (24 hours), we need to calculate the number of half-lives that have occurred.
Since the half-life of Element Z is 5 hours, there are 24 hours divided by 5 hours, which equals 4.8 half-lives.
Each half-life reduces the amount of Element Z by half. So, after 4.8 half-lives, the remaining amount of Element Z would be (1/2)^(4.8) = approximately 0.0625 or 6.25%.
Therefore, after 1 day has passed, approximately 6.25% of Element Z would be remaining.
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A train is moving west with an initial velocity of 20m/s accelerates at 4m/s for 10 seconds during this time the train moves a distance
Answer:
400m
Explanation:
From Newton's law of motion;
S = ut + 1/2 at2
Where U is initial velocity
a is acceleration
t is velocity hence;
S is distance covered
S = 20×10 + 1/2 × 4×(10)^2
= 200 + 200 = 400m
The attractive force between two objects
that depends on their masses and the dis-
tance between them is _____?
Answer:
The answer is going to be gravitational force
which situation would result in interference? group of answer choices a wave bouncing off an object a wave bending as it moves through an object a wave scattering as it moves through an object a wave increasing in energy as it hits another wave
Interference occurs when two or more waves meet and interact with each other. These interactions can be constructive or destructive, depending on how the waves are aligned with each other.
Constructive interference occurs when waves are aligned in phase with each other, resulting in an increase in amplitude, while destructive interference occurs when waves are aligned out of phase, resulting in a decrease in amplitude. Of the group of answer choices given, the situation that would result in interference is when a wave bounces off an object and interferes with another wave in the same space.
When the wave is reflected off an object, it produces a new wave that interacts with the original wave, resulting in interference. This can lead to constructive interference if the waves are aligned in phase, or destructive interference if they are aligned out of phase.
Interference occurs when two waves meet and interact with each other. These interactions can be either constructive or destructive, depending on the alignment of the waves with each other. When waves are aligned in phase, constructive interference occurs, resulting in an increase in amplitude. On the other hand, when waves are aligned out of phase, destructive interference occurs, resulting in a decrease in amplitude.
The situation that would result in interference is when a wave bounces off an object and interferes with another wave in the same space. This can lead to either constructive or destructive interference, depending on how the waves are aligned.
Therefore, the answer is wave bouncing off an object.
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1. Two 500 g point masses are rotating on a light frame at a radius of 0.1 m from a vertical axis. The angular speed of the system is 20 rad s-1. a a) What is the moment of inertia of the system about the axis? b) What is the angular momentum of the system about the axis? c) If the masses were pulled into a radius of 0.05 m by an internal radial force, what would the angular momentum of the system now be? d) What is the new angular speed of each mass? e) By how much did the energy of the masses change?
(a) The moment of inertia of the system about the axis can be calculated using the formula for the moment of inertia of a point mass rotating about an axis.
(b) The angular momentum of the system about the axis can be determined by multiplying the moment of inertia by the angular speed.
(c) If the masses are pulled into a smaller radius, the moment of inertia will change, resulting in a new angular momentum for the system.
(d) The new angular speed of each mass can be calculated using the principle of conservation of angular momentum.
(e) The change in energy of the masses can be determined by comparing the initial and final kinetic energies of the system.
(a) To calculate the moment of inertia of the system about the axis, we consider the two point masses rotating at a given radius. The moment of inertia for each point mass is given by the formula I = m * r², where m is the mass and r is the radius.
Since there are two masses, we can calculate the total moment of inertia by summing the individual moments of inertia.
(b) The angular momentum of the system is determined by multiplying the moment of inertia by the angular speed. Using the formula L = I * ω, where L is the angular momentum, I is the moment of inertia, and ω is the angular speed, we can find the angular momentum of the system.
(c) If the masses are pulled into a smaller radius, the moment of inertia will change. We can calculate the new moment of inertia using the same formula as in (a) but with the new radius. With the new moment of inertia, we can determine the new angular momentum of the system.
(d) To find the new angular speed of each mass, we apply the principle of conservation of angular momentum. The initial angular momentum of the system is equal to the final angular momentum. By rearranging the equation L = I * ω and solving for ω, we can calculate the new angular speed.
(e) The change in energy of the masses can be determined by comparing the initial and final kinetic energies of the system. The initial kinetic energy is given by (1/2) * I * ω², where I is the initial moment of inertia and ω is the initial angular speed.
Similarly, the final kinetic energy can be calculated using the new moment of inertia and angular speed. The difference between the initial and final kinetic energies represents the change in energy of the masses.
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part b run the video frame-by-frame again. now describe the car’s velocity (speed and direction) over time.
Velocity is the direction in which an object is moving and serves as a measure of the pace at which its position is changing as seen from a particular point of view.
What do you mean by motion?Motion in physics is the phenomenon in which an object shifts in relation to time. Motion is quantitatively characterized in terms of the body's change in position with respect to the observer's frame of reference as well as the velocity, acceleration, and speed of the body. Kinematics is the area of physics that studies forces and how they affect motion, while dynamics is the area that studies motion in relation to its causes.
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heyy i don't understand this question may u help me pls?
Answer:
What question?
Explanation:
In comparing two unequal forces on a rigid body, is it possible to have the larger force produce less torque than the smaller force?.
Yes. If the smaller force is farther from the fulcrum than the larger mass.
What is rigid body?A body that does not deform or alter shape is idealized as a hard body. Formally, it is described as a group of particles with the feature that their distance from one another does not change as the body moves.
What is torque?When an engine exerts itself, torque, which is a twisting force, speaks to the rotational force of the engine and quantifies how much of that twisting force is accessible. Everyday activities like turning a doorknob, opening a drink bottle, using a wrench, or peddling a bicycle all involve torque.
What is force?The definition of force in physics is: The push or pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude.
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While playing a video game on your laptop, the laptop gets very hot. Which Thermodynamics Law does this exemplify?
Answer
The dedicated graphics card is used when performing hardware-intensive tasks so as to ensure efficiency and balanced performance. However, it uses more power and thus produces more heat. When the cooling system is not sufficient or the room is not well ventilated, your PC begins to overheat while playing games. Explanation: How does the second law of thermodynamics relate to the direction of heat flow? Heat of itself never flows from a cold object to a hot object. ... The second law expresses the maximum efficiency of a heat engine in terms of hot and cold temperatures. one of these answers i am not sure
A w21x62 steel beam with unbraced length of 14 ft, the maximum factored moment that this beam can support is:________
The maximum factored moment that this w21x62 steel beam can support is 124,000 in-lbs.
The maximum factored moment that a w21x62 steel beam with an unbraced length of 14 ft can support depends on several factors. To determine this, we need to consider the beam's properties, such as its section modulus (S) and the allowable bending stress (Fb).
The section modulus represents the beam's ability to resist bending. For a w21x62 steel beam, the section modulus is provided by the manufacturer and is equal to 62 in³. The allowable bending stress is also given by the manufacturer and can be assumed to be 24,000 psi for this type of beam.
To calculate the maximum factored moment, we can use the formula: Maximum Factored Moment = (S * Fb) / 12
Substituting the given values: Maximum Factored Moment = (62 in³ * 24,000 psi) / 12 = 124,000 in-lbs
Therefore, the maximum factored moment that this w21x62 steel beam can support is 124,000 in-lbs.
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What is the density of a 14.4 g of chromium in a rectangle with a volume of 2 cm3?
Answer:
\(density = \frac{mass}{volume} \\ \\ density = \frac{14.4}{2} \\ \\ { \boxed{ \boxed{density = 7.2 \: g {cm}^{ - 3} }}}\)
The pulse of sound hits a stationary object and is reflected back to the bat. The pulse is received by the bat 0.12s after it was emitted. Calculate the distance travelled by the pulse of sound during this time.
Answer:
41.52 m
Explanation:
Using,
v = d/t....................... Equation 1
v = speed of pulse of sound, d = distance travelled by the pulse of sound, t = total time taken.
From equation 1, make d the subject of the equation
d = vt............................ Equation 2
Given: t = 0.12 s.
Constant: v = 346 m/s
Susbtitute these values into equation 2
d = 346(0.12)
d = 41.52 m
Describe the three methods of thermal energy transfer and provide a sketch that depicts each:
Conduction:
Convection:
Radiation:
Answer:
a)the process by which heat or electricity is directly transmitted through the material of a substance when there is a difference of temperature
b)the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat
c)radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium.
a car accelerates uniformly from rest to a speed of 30.0 mi/h in 8.0 s. (a) find the distance the car travels during this time.
A car accelerates uniformly from rest to a speed of 30.0 mi/h in 8.0 s. the car travels a distance of 120 feet during the given time.
To find the distance the car travels during the given time, we can use the equation:
distance=(1/2)×acceleration×(time)^2
First, let's convert the speed from miles per hour (mi/h) to feet per second (ft/s) because the equation requires consistent units. We know that 1 mile is equal to 5280 feet and 1 hour is equal to 3600 seconds. Therefore:
speed=30.0×(5280/3600) ft/s
The car starts from rest, so its initial speed is 0 ft/s. The acceleration is the rate at which the speed changes, and in this case, it is uniform. To find the acceleration, we can use the formula:
acceleration= (change in speed)/time
acceleration=(30.0 ft/s−0 ft/s)/8.0 s
=3.75 ft/s^2
Now we can substitute the values into the distance formula:
distance=(1/2)×3.75 ft/s^2×(8.0 s)^2
=120 ft
Therefore, the car travels a distance of 120 feet during the given time.
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For the following six questions, match the descriptions to the below people (A-J)
A) Eratosthenes B) Aristarchus C) Isaac Newton D) Aristotle E) Ptolemy F) Galileo G) Hipparchus H) Kepler I) Nicolaus Copernicus J) Tycho Brahe
23. Discovered the phases of Venus using a telescope.
24. First to consider ellipses as orbits.
25. Foremost ancient Greek philosopher.
26. Ancient Greek who believed in a sun-centered universe.
27. First to measure the size of the Earth to good accuracy.
28. Developed the first predictive model of the solar system.
The correct match of the descriptions to the below people are 23 - F, 24 - H, 25 - D, 26 - I, 27 - A, 28 - B.
23 - F Galileo: Galileo Galilei is credited with discovering the phases of Venus using a telescope. Through his observations, he observed that Venus went through a series of phases similar to those of the Moon, which supported the heliocentric model of the solar system.
24 - H Kepler: Johannes Kepler was the first to consider ellipses as orbits. He formulated the laws of planetary motion, known as Kepler's laws, which stated that planets move in elliptical paths with the Sun at one of the foci. Kepler's work revolutionized our understanding of celestial mechanics.
25 - D Aristotle: Aristotle, the ancient Greek philosopher, is considered one of the foremost thinkers in history. While his contributions span various fields, including philosophy and natural sciences, his views on astronomy were geocentric. He believed that the Earth was the center of the universe and that celestial bodies moved in perfect circles around it.
26 - I Nicolaus Copernicus: Nicolaus Copernicus was an astronomer who proposed the heliocentric model of the solar system, in which the Sun, rather than the Earth, was at the center. Copernicus's revolutionary idea challenged the prevailing geocentric view and laid the foundation for modern astronomy.
27 - A Eratosthenes: Eratosthenes was an ancient Greek mathematician and astronomer who made significant contributions to geography and astronomy. He is known for his accurate measurement of the Earth's circumference. By measuring the angle of the Sun's rays at two different locations, he estimated the Earth's circumference with remarkable accuracy.
28 - B Aristarchus: Aristarchus of Samos is credited with developing the first predictive model of the solar system. He proposed a heliocentric model centuries before Copernicus, suggesting that the Sun was at the center of the universe, with the Earth and other planets orbiting it. Aristarchus's model was a significant departure from the prevalent geocentric view of the time.
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A kangaroo moves with a constant speed of 90 km/h for 20 m on a straight road. Calculate the distance traveled in this period of time
We first apply the data to the problem.
Data:
V = 90km/hT = 20minD = ?Now, we convert the minutes to hours.
Conversion:
T = 20 min • (1 hr / 60 min)T = 1/3 hrThen, we apply the formula that is.
Formula:
D = V • TFinally we develop the problem.
Developing:
D = (90km/h) • (1/3h)D = 30kmThe distance traveled by the kangaroo is 30 kilometers.
Which of the following objects have kinetic energy?
An elephant walking 1.5 m/s along the ground.
A jet flying across the sky 4,000 m above the ground.
A car traveling 20 m/s along a flat road.
A concrete block sitting on the ground.
An apple on a tree branch 3.0 m above the ground.
A subject is given a sugar pill and is told it may treat anxiety. This person may experience:
Calculate the wavelength in a string whose period is 0.5 seg and the waves speed is 5 m/sec.
The wavelength of the string is 2.5 meters. It can be calculated by using the formula: Wavelength (λ) = Wave Speed (v) × Period (T).
The formula to calculate wavelength is:
wavelength = wave speed / frequency
In this case, we are given the period, which is the inverse of frequency. Therefore, we need to calculate the frequency first:
frequency = 1 / period = 1 / 0.5 = 2 Hz
Now we can use the formula to find the wavelength:
wavelength = wave speed / frequency = 5 / 2 = 2.5 meters
Therefore, the wavelength of the string is 2.5 meters.
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An object falling straight down without air resistance is said to be exhibiting
A. free fall
B. projectile motion
C. circular motion
D. two-dimensional motion
Answer:
Explanation:
If the object is falling straight down it is in free fall. The difference between that and two-dimensional motion is that 2D motion is parabolic (projectile)
A discordant igneous intrusion
Select one:
a.
cuts across bedding planes.
b.
will consist dominantly of pyroclasts.
c.
parallels sedimentary rock layering.
d.
produces deadly explosions.
A discordant igneous intrusion cuts across bedding planes. Here is the detailed explanation of the given question:Explanation:The Discordant igneous intrusion is the formation of an igneous rock mass when magma is injected into a host rock and cools there.
This form of igneous intrusion does not conform to the stratification or layering of the existing rock mass because it cuts across it.Therefore, a discordant igneous intrusion cuts across bedding planes.Option (a) is correct. It is the only option that describes the features of discordant igneous intrusion. Hence, the correct answer is option (a).
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What is meant when we say that a quantity is a vector?
I need a quick answer please ;)
How could high-latitude scintillation occur equatorward of the
auroral boundary?
Radio waves traveling through the ionosphere at high latitudes experience quick and unpredictable oscillations, which is known as high-latitude scintillation.
The auroral border, or area of the ionosphere where the aurora borealis (northern lights) appear, is typically connected with scintillation. However, high-latitude scintillation can occasionally be seen equatorward of the auroral boundary depending on the circumstances. The cause of this phenomenon is the presence of ionospheric irregularities that go beyond the auroral oval, such as irregularities in plasma density brought on by equatorial spread F (ESF). ESF can produce significant ionosphere-wide anomalies that lead to scintillation at lower latitudes. This may occur when the sun is active more intensely or when particular ionospheric circumstances favor the production of these anomalies.
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