The magnitude of the uniform electric field required to stop the protons in a distance of 2 m is 1.10 x 10^32 N/C.
To solve this problem, we need to use the equation for the work done by an electric field on a charged particle:
W = qEd
First, we need to calculate the velocity of the protons:
\(K = 1/2 mv^2 \\v = sqrt(2K/m)\)
Plugging in the values, we get:
\(v = sqrt(2 * 3.25 * 10^{-15} J / 1.673 * 10^{-27} kg)\\v = 5.94 * 10^6 m/s\)
Time it takes for the proton to stop:
\(t = d/v \\t = 2 m / 5.94 * 10^6 m/s \\t = 3.37 * 10^-7 s\)
Finally, we can use the time and the acceleration due to the electric field to calculate the electric field strength:
\(a = v/t \\a = 5.94 * 10^6 m/s / 3.37 * 10^{-7} s\\a = 1.76 * 10^13 m/s^2\)
\(E = a/q \\E = 1.76 * 10^{13} m/s^2 / 1.602 * 10^{-19} C\\E = 1.10 * 10^{32} N/C\)
Therefore, the magnitude of the uniform electric field required to stop the protons in a distance of 2 m is 1.10 x 10^32 N/C.
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David throws a football into the air with an initial KE of 1000 J. Once the football reaches max height, the gravitational potential energy is 1.2 times the initial KE. What was the initial gravitational potential energy?
Group of answer choices
1000 J
200 J
0 J
2000 J
The initial potential gravitational energy will be 0 joules because the height will be zero.
What is kinetic and potential energy?Potential energy is the energy that is stored in any object of reffred to its height of the base of surface of earth. The object or system is unaffected by external factors like air or height. The power of moving particles within a system or an item is referred to as kinetic energy.
Does potential energy depend on mass?Potential energy is often represented by its height from surface. Height-dependent energy is known as gravitational potential energy. Weight determines the potential energy amount (mass times gravity).
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0. The volume of a cube is 27cm3. Find the length of edge of cube.
Answer:
27 cm3
Explanation:
Car A starts from rest at t =0 and travels along a
straight road with a constant acceleration of 2 ft/s^2 of until it
reaches a speed of 74 ft/s^2 . Afterwards it maintains this
speed. Also, when t = 0 , car B located 5760 ft down the
road is traveling towards A at a constant speed of 56 ft/s^2 .
Determine the distance traveled by car A when they pass
each other.
The distance traveled by car A when they pass each other is 3278.2 ft.
What is the time taken for the two cars to meet each other?The time taken for the two cars to meet each other is calculated by applying the concept of relative velocity.
(Va + Vb)t = d
where;
Va is the velocity of car AVb is the velocity of car Bt is the time of motion of the two carsd is the distance between the cars(74 + 56)t = 5760
130t = 5760
t = 5760/130
t = 44.3 s
The distance traveled by car A when they pass each other is calculated as follows;
da = 74 ft/s x 44.3 s
da = 3,278.2 ft
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what is a substance that is dissolved in another substance
A solute is a substance that is dissolved in another substance, known as a solvent. When a solute is mixed with a solvent, it disperses evenly throughout the solvent, forming a homogeneous mixture called a solution.
The solute can be in various physical states, such as solid, liquid, or gas, depending on the specific system.
Examples of solutes can include salt (sodium chloride) dissolved in water, sugar dissolved in coffee, or oxygen gas dissolved in blood. In these examples, water, coffee, and blood act as solvents that facilitate the dissolution of the solutes. The solute particles become dispersed and surrounded by the solvent particles, resulting in a solution where the solute appears uniformly mixed at the molecular level.
The solubility of a solute in a given solvent depends on factors such as temperature, pressure, and the chemical properties of the solute and solvent. The ability to dissolve substances is an important characteristic of solvents and plays a crucial role in various processes, such as chemistry, industry, and biological systems.
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The _ states that the forces that are changing Earth's surface today are the same forces that changed Earth's surface in the past
The uniformitarianism states that the forces that are changing Earth's surface today are the same forces that changed Earth's surface in the past as a result of the same types of agents being present all along.
What is uniformitarianism?This type of doctrine talks about how the earth's geologic processes are the same as a result of the agents of weathering such as glacier, wind etc being the same in this type of scenario.
Weathering is referred to the process in which rocks are broken down into smaller particles to form soil. The agents of weathering has been the same today and in the past which makes it constant.
This is therefore the reason why Uniformitarianism was chosen as the most appropriate choice.
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A hiker moves 15 km due east then heads 8 km due west. What is the direction of the resultant vector?
Answer:
east
Explanation:
15km east
_______________
X________
8km west
so you are where the xX is so you are still in the eastward direction
Red light has a wavelength of (7. 21x10^7)m. What is the frequency of this light?
Answer:
TO answer this question i need wave speed
Explanation:
A mover pushes a 255 kg piano
with a 77.5 N force to the left, while
a second mover pulls the piano
48.7 N to the left. What is the
acceleration of the piano?
(Watch your minus signs.)
(Unit = m/s2)
Answer:
\(0.495ms^{-2\)
Explanation:
According to the newton's second law of motion we can apply F=ma hear
Force = mass * acceleration
(assume the piano is moving left side )
←F = ma
\(F(pull) + F (push) = M * a\\77.5 + 48.7 = 255*a\\a = 0.495ms^{-2}\)
Little kids at Newton's preschool are always dropping their lunch boxes on the floor,
causing the boxes to either break or pop open and spill lunches everywhere. Mrs.
Suki wants to get a new mat to put on the floor under the preschooler's cubbies that
will keep the lunch boxes from breaking when the kids drop them.
Mrs. Suki tested 2 different materials and this is what she found:
.
• The bare floor causes the lunch box momentum to decrease to 0 in 3 seconds.
• Material #1 causes the lunch box momentum to decrease to 0 in 1 second.
• Material #2 causes the lunch box momentum to decrease to 0 in 2 seconds.
Mrs. Suki is looking for a material to place on the floor under the preschooler's cubbies that will reduce the momentum of a dropped lunch box and prevent it from breaking.
What is preschooler's cubbies?A preschooler's cubby is a small, personal storage space designed for children to store their belongings at school, daycare, or a similar educational setting. It is typically an open shelf or cabinet with multiple compartments for each child to store their items.
Based on her testing, she found that Material #1 is the best option because it causes the lunch box momentum to decrease to 0 in the shortest amount of time, 1 second. Material #2 is a good option too, but it takes 2 seconds for the momentum to decrease to 0, which is slightly longer than Material #1. Therefore, Material #1 is the best choice for reducing the momentum of a dropped lunch box and keeping it from breaking.
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What is one example of thermal energy
Answer:
Solar Energy
Explanation:
Solar radiation (a form of an object) heats up our atmosphere, that's why heat is felt on earth.
Complete each statement with the word that makes it true.
The noble gases are the least
of any elements on the periodic table.
The
form acidic compounds with hydrogen.
The halogens are the most reactive among all the
.
Answer:
reactive
halogens
nonmetals
Explanation:
Noble gases are the least reactive of all elements on the periodic table. The halogens form acidic compounds with hydrogen. Halogens are most reactive among all the nonmetals.
What are halogens?Halogens are the chemical elements placed in group 7 of the modern periodic table, which contains five elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).
Halogens can be described as nonmetals among which fluorine and chlorine (Cl) are gases and bromine (Br) is a liquid, and iodine (I) and astatine (At) are solids at room temperature. Halogens are generally the most reactive among the nonmetals and their reactivity decreases from F to At.
The word ‘halogen’ means “salt-forming“. Halogens exist in the form of ions or compounds because of their high reactivity.
Halogens are generally homonuclear diatomic so one molecule exists with two halogen atoms each. Halogens possess seven valence electrons because halogens have a deficiency of one electron to get a noble gas configuration. Therefore, they form negative ions, highly reactive due to high electronegative.
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State Schrodinger equation.
Hi!Schrodinger equation is written as HΨ = EΨ, where h is said to be a Hamiltonian operator.
All of the following are good conductors of heat exept
a. Wood
b. Aluminum
c. Copper Silver
(Sorry if its the wrong subject, Im not sure which science this is.)
Does a prediction value of y = 2.45 ± 0.72 cm agree well with a measurement value of y = 3.36 ± 0.03 cm?
True
False
No, a prediction value of y = 2.45 ± 0.72 cm does not agree well with a measurement value of y = 3.36 ± 0.03 cm. So, the correct answer is False.
Here's why: When determining whether two values agree well, we must compare the uncertainty associated with each measurement. If the two values differ by more than the combined uncertainty, they do not agree well.
Let's start by calculating the difference between the two values:3.36 cm - 2.45 cm = 0.91 cm
Next, we must calculate the combined uncertainty. This is found by adding the individual uncertainties in quadrature (square each uncertainty, add the results, and then take the square root):sqrt((0.72 cm)^2 + (0.03 cm)^2) = 0.72 cm
Thus, the combined uncertainty is 0.72 cm. Since the difference between the two values is 0.91 cm, which is larger than the combined uncertainty, we can conclude that the two values do not agree well.
So, the correct answer is False.
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how many gates control flow of na+ though voltage-gated na+ channels?
Voltage-gated sodium (Na+) channels have three gates that control the flow of Na+ ions: the activation gate, the inactivation gate, and the selectivity filter.
Voltage-gated sodium (Na+) channels have three gates that control the flow of Na+ ions: the activation gate, the inactivation gate, and the selectivity filter. The activation gate is responsible for opening and closing the channel in response to changes in membrane potential, allowing the influx of Na+ ions into the cell during depolarization. The inactivation gate is a separate region of the channel that closes shortly after the activation gate opens, preventing further Na+ influx and contributing to the repolarization phase of the action potential. The selectivity filter ensures that only Na+ ions can pass through the channel and not other ions. Therefore, all three gates work together to control the flow of Na+ through voltage-gated Na+ channels.
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will the car's propulsion increase, decrease or remain the same when the static friction is reduced, as if there is an icy/slippery road?
The car's propulsion will decrease when the static friction is reduced, as if there is an icy/slippery road. Static friction is the force that resists the movement of two surfaces in contact. When the static friction is reduced, the available friction for the car's propulsion is decreased, and the car's propulsion will be affected.
In order to understand this better, we need to understand friction. Friction is a force which acts in a direction opposite to the direction of motion and resists any change in the state of motion. Static friction is a force which acts in the direction opposite to the direction of motion and opposes any change in the state of rest of the body.
When there is a decrease in the static friction, the car will not be able to accelerate as quickly as it would on a normal road. This is because the static friction is the force which helps to accelerate the car and push it forward. On an icy/slippery road, the friction between the car and the ground will be greatly reduced and the car will be unable to move as quickly as it would on a normal road.
To summarize, the car's propulsion will decrease when the static friction is reduced, as if there is an icy/slippery road. This is because static friction is the force which helps to accelerate the car and push it forward and when there is a decrease in the static friction, the car will not be able to accelerate as quickly as it would on a normal road.
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2) A girl walks to the east 40m, to the south 70m and then to
the west 40m, what is the distance.
and displacement of the girl
The correct answer is 70 meter displacement in the east.
Let's assume that he departs from point O and follows the path ABC.
The man's displacement will be revealed if we join the start and end points of the path he took.
O's distance from A is 40 meters.
70 meters separate A and B.
From B to C, it is 40 meters.
Distance from B to C equals the distance between O and A.
We're looking for the displacement, which is the separation between points O and C.
The opposing sides of a rectangle are equal. Hence A to B is separated by the distance from O to C.
Distance from A to B equals displacement.
70 meter displacement in the east.
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A system in which only one particle can move has the potential energy shown in (figure 1). Suppose u1 = 60 j. What is the y-component of the force on the particle at y = 0. 5 m ?.
The y-component of the force on the particle at the given position is 120 N.
Electric force on the particle
The electric force on the particle is determined by applying Coulomb's law and work-energy theorem as shown below;
Fd = W
Where;
F is the applied forced is the distanceW is potentialF = W/d
F = 60/0.5
F = 120 N
Thus, the y-component of the force on the particle at the given position is 120 N.
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Question 1 of 10
What do all waves in the electromagnetic spectrum have in common?
OA. They have the same distance between crests.
OB. They have the same energy.
C. They have the same rate of motion.
D. They have the same frequency.
SUBMIT
Answer:
They have the same rate of motion.
Explanation:
Electromagnetic radiation is a type of energy that is commonly known as light. Generally, light travels in waves, and all electromagnetic radiation travels at the same speed, which is about 3.0 × 108 ms− 1 through a vacuum.
A hand-crank generator inputs 160 Joules of energy into a light bulb over the course of 2.5 seconds. Calculate the power
The power being dissipated by the hand-crank generator is 94.12 Watts.
Given the following data:
Energy = 160 Joules.Power = 2.5 seconds.To find the power being dissipated by the hand-crank generator:
Mathematically, power is given by the formula;
\(Power = \frac{Energy}{Time}\)
Substituting the given parameters into the formula, we have;
\(Power = \frac{160}{1.70}\)
Power = 94.12 Watts.
Therefore, the power being dissipated by the hand-crank generator is 94.12 Watts.
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Not
sure if I'm correct.
.bloow The fewer the number of substitutes for a good: (a.) the less elastic the demand. b. the more elastic the demand.easenoni vtitnsu c. the more elastic the supply. sesetoeb yliinau d. the less el
The fewer the number of substitutes for a good, the less elastic the demand.
The concept of elasticity measures the responsiveness of demand or supply to changes in price. When there are fewer substitutes available for a particular good, consumers have limited alternatives to switch to if the price of that good increases. As a result, the demand for the good becomes less elastic, meaning that the quantity demanded is less responsive to changes in price.
In this scenario, option (a.) is correct. When there are fewer substitutes for a good, consumers have a more limited range of choices, making them less likely to respond strongly to changes in price. On the other hand, if there are many substitutes available, consumers have more flexibility to switch to alternative goods if the price of one particular good increases, resulting in a more elastic demand.
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the complete question is
The fewer the number of substitutes for a good: (a.) the less elastic the demand. b. the more elastic the demand.easenoni vtitnsu c. the more elastic the supply. sesetoeb yliinau d. the less elastic the supply
terms used to measure motion
Answer:
velocity term
Explanation:
Answer:velocity term
Explanation:
1 point1. Inertia is the tendency of an object to stay at rest or in motion. *TrueFalse
The given statement is true
Inertia is the tendency of an object to stay at rest or in motion
zr4 express your answer in the order of orbital filling as a string without blank space between orbitals. for example, the electron configuration of li would be entered as 1s^22s^1 or [he]2s^1.
Answer:The electron configuration of Zr is [Kr]5s^24d^2.
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the circuit is protected by a ground fault interrupter in the plug. the water in the tank is grounded. the two bare wires correspond to the two pins on the ground fault interrupter plug. if the __________ wire is touched to the water, the ground fault interrupter will disconnect the circuit.
The two bare wires line up with the ground fault interrupter plug's two pins. The ground fault interrupter will off the power if the hot wire comes into contact with water, the ground fault interrupter will disconnect the circuit.
GFCI or a GFI This gadget safeguards against electric shocks caused by malfunctions in household electric appliances. Comparing the current on the input side, which displays the hot side, to the current on the exterior, which displays the neutral side, would accomplish the desired result.In the scenario when the hot wire provides a 120 VAC current source, the neutral wire provides the hot wire's return path.
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Use the simulation to complete the activity.
Force and Motion Basics (select Acceleration)
In one or two sentences, make a hypothesis about whether or not it is easier to start the box moving than to keep it moving on a rough surface. Then, explain how the simulation can be used to prove the hypothesis.
It is more difficult to get the object to move or keep moving on a rough surface.
What is friction?The term friction has to do with the opposition to the motion of an object. We know that friction could lead to a reduction in the speed of the object. If the surface is so rough, the motion an object would be difficult due to a greater resistive force that keeps the object from moving.
We can then see that it would be more difficult for the object to begin to move on the rough surface rather, motion could easily start and be sustained on quite a smooth surface as we can see.
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On a rough surface, it is more challenging to move or maintain the motion of the object due to friction between the object and the surface due to contact.
What is force?An object experiences a push or pull as a result of interacting with another object. Each object is subject to a force whenever two objects interact.
According to newton's law, an object tries to maintain its position whether it is at resting or it is in motion. If the body is at rest then it tries to maintain its rest position and if the body is in motion then again it tries to maintain its motion. So, if the box is at rest, it is difficult to move the box in starting because of inertia, but once it is in motion it is easy to keep on going with the flow.
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Our eyes perceive colors because of differences in which of the following properties of light?
a)
Wavelength
b)
Intensity
c)
Source
d)
Angle
The properties of light is option a wavelength.
Wavelength:It is the distance between the points of two consecutive waves. It is usually denoted by the Greek letter lambda (λ), and it is equal to the speed (v) of a wave train in a medium divided by its frequency (f): λ = v/f.
So based on the above information, the a option is correct.
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Phát biểu nào sau đây sai?
A. Hàm lượng cacbon trong thép cao hơn trong gang.
B. Sắt là kim loại màu trắng hơi xám, dẫn nhiệt tốt.
C. Quặng pirit sắt có thành phần chính là FeS2.
D. Sắt (III) hiđroxit là chất rắn, màu nâu đỏ, không tan trong nước.
Phát biểu nào sau đây sai?
A. Hàm lượng cacbon trong thép cao hơn trong gang.
B. Sắt là kim loại màu trắng hơi xám, dẫn nhiệt tốt.
C. Quặng pirit sắt có thành phần chính là FeS2.
D. Sắt (III) hiđroxit là chất rắn, màu nâu đỏ, không tan trong nước.
ANSWER:D. Sắt (III) hiđroxit là chất rắn, màu nâu đỏ, không tan trong nước.
___________________CARRY ON LEARNING
CAN YOU BRAINLEST ME
which command is capable of creating connecting lines that have a rounded or sharp edge?
a.trim
b.rotate
c.hatch
d.fillet
Answer:
it is dddd
Explanation:
does the motion we observe and record in section c qualify as simple harmonic motion ? if so, explain why. if not, explain why not, and whether it qualifies as periodic motion
The motion observed and recorded in section c qualifies as simple harmonic motion because it meets the criteria for SHM, which includes a system that experiences a restoring force proportional to its displacement from equilibrium and moves with a constant amplitude and frequency.
Simple harmonic motion (SHM) is a type of periodic motion where the restoring force acting on a system is proportional to the displacement from equilibrium. In the given scenario, the object is suspended from a spring, which creates a restoring force that is proportional to the displacement from the equilibrium position.
Moreover, the amplitude and frequency of the motion are constant, which is another criterion for SHM. Therefore, the motion observed and recorded in section c qualifies as SHM.
Periodic motion refers to any motion that repeats itself after a fixed interval of time. The motion in section c qualifies as periodic motion, as it repeats itself after a fixed interval of time. However, not all periodic motion is SHM, as the restoring force acting on the system may not be proportional to the displacement from equilibrium.
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