a physics instructor drops a magnet through a copper pipe, as illustrated in figure 25-16. the magnet falls very slowly, and the class concludes that there must be some force opposing gravity. what is the direction of the current induced in the pipe by the falling magnet if the s-pole is toward the bottom? the induced current produces a magnetic field. what is the direction fo the field? how does this field reduce the acceleration of the falling magnet?
Answers
Direction of the current: Clockwise (when viewed from above).
When a magnet is dropped through a copper pipe (conductor), the motion of the magnet relative to the conductor induces an electric current due to electromagnetic induction. According to Lenz's law, the induced current will create a magnetic field that opposes the change in the magnetic field produced by the falling magnet.
In this case, if the south (S) pole of the magnet is toward the bottom, the induced current in the copper pipe will flow in a clockwise direction (when viewed from above) to create a magnetic field that opposes the motion of the falling magnet.
The induced magnetic field produced by the current in the pipe interacts with the magnetic field of the falling magnet. This interaction results in a force known as the magnetic braking force, which opposes the force of gravity acting on the magnet. As a result, the magnetic braking force reduces the acceleration of the falling magnet, causing it to fall more slowly. The energy of the falling magnet is converted into electrical energy in the form of the induced current, leading to a gradual decrease in the magnet's speed.
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Related Questions
Why is the use of carbon- 14 dating limited?
Answers
Answer:
because carbon 14 has only a short half life, rather than other elements with longer half lives.
Explanation:
✨science✨
A. Objective: To design a body ("slider") that can slide as quickly as possible down an inclined plane that is lubricated with SAE 10W-40. B. Slider - Size: Mass must be no more than 0.5 kg. - Material: Any metal alloy C. Inclined Plane (Runway) - Material: Lexan sheet on a wood substrate. - Length (sliding direction): 2.0ft - Inclination: 2.7deg - Width: 1.0ft
Answers
Objective:The objective of this experiment is to design a body ("slider") that can slide as quickly as possible down an inclined plane that is lubricated with SAE 10W-40.
The experiment is intended to identify the most efficient slider design, including material selection and weight, to optimize the slide down an inclined plane.In the following, we will explore the design for the slider and the inclined plane, which includes size and material specifications.Slider:Size:The slider should have a mass of no more than 0.5 kg. It's critical to ensure that the slider's weight doesn't create too much friction, slowing it down and making it less efficient.Material: Any metal alloy can be used for the slider's production.
However, lighter metal alloys, such as aluminum and titanium, are preferred because they reduce friction and improve sliding speed.Inclined Plane (Runway):Material:The runway is made of Lexan sheets on a wooden substrate. Lexan is a tough polycarbonate plastic that is commonly used in the construction of bulletproof windows and skylights. Its high-impact resistance and strength make it an excellent option for the inclined plane, reducing the possibility of damage from repeated testing.Length (sliding direction):
The sliding direction of the inclined plane is 2.0ft, providing sufficient distance for the slider to reach maximum speed.Inclination:The inclination of the inclined plane is 2.7 degrees, enabling the slider to slide quickly while still retaining control.Width:The inclined plane is 1.0ft wide, providing ample room for the slider to move freely while also ensuring that it does not wobble or shift sideways during the test.
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Paul pushes a stalled car with a force of 204-N. if the required force decreases at a constant rate from 204-N to 44-N for a distance of 16.3-m in 16.0-sec, calculate the average power required to move the car.
Answers
Answer:
Posted Answer and realized it was false. Be back with correct answer soon.
<3
Find the center of mass of the region bounded by y=9-x^2 y=5/2x , and the z-axis. Center of Mass = __?
Note: You can earn partial credit on this problem.
Answers
The centre of mass of the region is bounded by y=9-x^2 y=5/2x, and the z-axis is (3.5, 33/8). Formulae used to find the centre of mass are as follows:x bar = (1/M)*∫∫∫x*dV, where M is the total mass of the system y bar = (1/M)*∫∫∫y*dVwhere M is the total mass of the system z bar = (1/M)*∫∫∫z*dV, where M is the total mass of the systemThe region bounded by y=9-x^2 and y=5/2x, and the z-axis is shown in the attached figure.
The two curves intersect at (-3, 15/2) and (3, 15/2). Thus, the total mass of the region is given by M = ∫∫ρ*dA, where ρ = density. We can assume ρ = 1 since no density is given.M = ∫[5/2x, 9-x^2]∫[0, x^2+5/2x]dAy bar = (1/M)*∫∫∫y*dVTherefore,y bar = (1/M)*∫[5/2x, 9-x^2]∫[0, x^2+5/2x]y*dA= (1/M)*∫[5/2x, 9-x^2]∫[0, x^2+5/2x]ydA...[1].
The limits of integration in the above equation are from 5/2x to 9-x^2 for x and from 0 to x^2+5/2x for y.To evaluate the above integral, we need to swap the order of integration. Therefore,y bar = (1/M)*∫[0, 3]∫[5/2, (9-y)^0.5]y*dxdy...[2].
The limits of integration in the above equation are from 0 to 3 for y and from 5/2 to (9-y)^0.5 for x.Substituting the values and evaluating the integral, we get y bar = (1/M)*[(9-5/2)^2/2 - (9-(15/2))^2/2]= (1/M)*(25/2)...[3].
Also, the x coordinate of the center of mass is given by,x bar = (1/M)*∫∫∫x*dVTherefore,x bar = (1/M)*∫[5/2x, 9-x^2]∫[0, x^2+5/2x]x*dA= (1/M)*∫[5/2x, 9-x^2]∫[0, x^2+5/2x]xdA...[4].
The limits of integration in the above equation are from 5/2x to 9-x^2 for x and from 0 to x^2+5/2x for y.To evaluate the above integral, we need to swap the order of integration. Therefore, x bar = (1/M)*∫[0, 3]∫[5/2, (9-y)^0.5]xy*dxdy...[5].
The limits of integration in the above equation are from 0 to 3 for y and from 5/2 to (9-y)^0.5 for x.
Substituting the values and evaluating the integral, we get x bar = (1/M)*[63/8]= (1/M)*(63/8)...[6]Thus, the centre of mass of the region is bounded by y=9-x^2 y=5/2x, and the z-axis is (3.5, 33/8).
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work done ona closed system consisting of 2 kg of water initially at 160 oc, 10 bar undergoes an internally reversible, isothermal expansion during which there is energy transfer by heat into the system of 2700 kj. determine the work done, in kj. the system is negative or positive
Answers
The work done on the closed system consisting of 2 kg of water initially at 160°C and 10 bar, undergoing an internally reversible, isothermal expansion with energy transfer by heat into the system of 2700 kJ, is positive and can be calculated as follows:
The given problem involves an isothermal process, which means the temperature of the system remains constant throughout the process. According to the first law of thermodynamics, for an isothermal process, the work done is equal to the heat transferred into the system.
Given:
Mass of water (m) = 2 kg
Initial temperature (T) = 160°C = (160 + 273.15) K = 433.15 K (converting to Kelvin)
Initial pressure (P) = 10 bar = 10 × 10⁵ Pa (converting to Pascal)
Heat transferred (Q) = 2700 kJ = 2700 × 10³ J (converting to Joules)
Since the process is isothermal, the work done (W) is equal to the heat transferred (Q) into the system, i.e., W = Q.
Substituting the given values, we get:
W = 2700 × 10³ J = 2700 kJ
So, the work done on the system is 2700 kJ, and it is positive as the heat is transferred into the system during the expansion process.
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what is the mass of 1.2 x 1024 molecules of f2?
Answers
The mass of 1.2 x 10²⁴ molecules of F₂ is 75.62 g.
The question can be calculated by using Avogadro's number and the molar mass of F₂.
First, we need to find the number of moles of F₂ in 1.2 x 10²⁴ molecules. We can do this by dividing the number of molecules by Avogadro's number (6.02 x 10²³ molecules/mol):
moles of F₂ = 1.2 x 10²⁴/6.02 x 10²³
moles of F₂ = 1.99 mol
Next, we need to find the molar mass of F₂. The atomic mass of fluorine is 19.00g/mol, so the molar mass of F₂ is:
Molar mass of F₂ = 2 x 19.00 g/mol
Molar mass of F₂ = 38.00 g/mol
Finally, we can calculate the mass of 1.2 x 10²⁴ molecules of F₂ by multiplying the number of moles by the molar mass:
mass of F₂ = 1.99 x 38.00
mass of F₂ = 75.62 g
Therefore, the mass of FF₂ is 75.62 g.
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describe the properties of a longitudinal wave.
Answers
Answer:
the waves that move back and forth in the same direction
Explanation:
Answer:
A longitudinal wave is a wave in which particles of the medium move in a direction parallel to the direction that the wave moves.
The waves in which the particles of medium moves in the direction of motion.sound is a longitudinal wave.it moves in all media i.e.solid,liquid,has.
Explanation:
Sound with a frequency of 1230 Hz leaves a room through a doorway with a width of 1.05 m. At which angles relative to the centerline perpendicular to the doorway will someone outside the room hear no sound? Use 344 m/s for the speed of sound in air and assume that the source and listener are both far enough from the doorway for Fraunhofer diffraction to apply. You can ignore effects of reflections.
Answers
This means that anyone standing outside the room at an angle of 15.7 degrees or more relative to the centerline perpendicular to the doorway will not hear any sound. However, if they move closer to the centerline, the sound will start to become audible again. This effect is known as diffraction and is a common phenomenon in wave propagation.
When a sound wave passes through a narrow opening, it diffracts and spreads out. The amount of diffraction depends on the wavelength of the sound wave and the size of the opening. In this case, the sound wave has a frequency of 1230 Hz, which corresponds to a wavelength of about 0.28 m. The doorway has a width of 1.05 m, which is much larger than the wavelength of the sound wave. Therefore, we can use Fraunhofer diffraction to calculate the angles at which no sound will be heard outside the room. The first minimum of diffraction occurs at an angle given by sin(theta) = lambda / w, where lambda is the wavelength of the sound wave and w is the width of the opening. Plugging in the values, we get sin(theta) = 0.28 / 1.05, which gives us theta = 15.7 degrees.
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1 Subraya las frases nominales que hay en estas oraciones
• Los defensores del castillo de Chapultepec fueron los tomados Ninos Héroes
Antonio López de Santa Anna, alteza serenisima, gobernaba el pais
* Unas naves estadounidenses arribaron al puerto de to heroica Veracruz
En esos naves, el ejército invasor llegaba con armamento moderno
Los estadounidenses cruzaron la selva humeda con rapidez
"Los soldados extranjeros pronto llegaron a la Ciudad de los Palacios y la invadieron
Fue entonces cuando lucharon a muerte los aguiluchos del colegio militar ksksn
Answers
The nominal terms they're extensively utilized in press passages, literary works and so on. The nominal phrases are made from a noun, that is, right call or pronoun.
After removing Noun phrases in the sentences so, new sentences are: -
1. The defenders of the castle of Chapultepec, Ninos Héroes
2. Antonio López de Santa Anna, Most Serene Highness, the country
3. Some American ships, the port of heroic Veracruz
4. Those ships, the invading army, modern weapons
5. The Americans, the humid jungle
6. Foreign soldiers, the City of Palaces
7. The eaglets of the ksksn military college, the death
Nouns can be categorized into various types, including proper nouns, common nouns, concrete nouns, abstract nouns, and collective nouns. For example, New York City, John, or Coca-Cola. Common nouns, on the other hand, are general and refer to people, places, or things without specifying them. Examples include city, man, or soda.
Nouns are essential components of sentences and are used to identify and describe people, places, things, or ideas. Examples include table, cat, or car. Abstract nouns refer to intangible concepts such as love, courage, or knowledge. Collective nouns refer to a group of things or people, such as a flock of birds, a team of players, or a school of fish.
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Complete Question:-
Underline the noun phrases in these sentences
1. The defenders of the castle of Chapultepec were the taken Ninos Héroes
2. Antonio López de Santa Anna, Most Serene Highness, ruled the country
3. Some American ships arrived at the port of heroic Veracruz
4. In those ships, the invading army arrived with modern weapons
5. The Americans crossed the humid jungle quickly
6. "Foreign soldiers soon arrived at the City of Palaces and invaded it
7. It was then that the eaglets of the ksksn military college fought to the death
could not find angular material core theme. most material components may not work as expected
Answers
When you see the error message "could not find angular material core theme. most material components may not work as expected," it means that the Angular Material theme is missing, and the application is having difficulty displaying Material components.
How to resolve the issue?Here are some steps to resolve this issue:
1. You should first ensure that Angular Material has been installed in your application. You may use the following command to install Angular Material:ng add ("at" symbol)angular/material
2. Then, import the necessary styles in the styles.scss file to include the Angular Material theme.
Once you've completed these steps, restart your server and see if the error has been resolved. The Material Design components should now display correctly.
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Provide an example of a product you believe is elastic and
explain your answer. Provide an example of a product you believe is
inelastic and explain your answer.
Answers
Example of an elastic product: Smartphone
Explanation: A smartphone is an example of an elastic product. When the price of smartphones decreases, consumers tend to buy more of them, and when the price increases, consumers tend to buy fewer.
Example of an inelastic product: Prescription medication
Explanation: Prescription medication is an example of an inelastic product. Inelastic goods are those for which changes in price have little impact on the quantity demanded.
Example of an elastic product: SmartphoneExplanation: A smartphone is an example of an elastic product. When the price of smartphones decreases, consumers tend to buy more of them, and when the price increases, consumers tend to buy fewer. This is because smartphones are considered non-essential goods with substitutes available in the market. If the price of a particular smartphone model increases, consumers have the option to choose a different brand or model that offers similar features at a lower price. Similarly, if the price of smartphones decreases, consumers may be more willing to upgrade their existing devices or purchase additional smartphones as they become more affordable. The demand for smartphones is responsive to changes in price, making it an elastic product.Example of an inelastic product: Prescription medicationExplanation: Prescription medication is an example of an inelastic product. Inelastic goods are those for which changes in price have little impact on the quantity demanded. Prescription medication is often essential for maintaining health and treating medical conditions, and there may be limited substitutes available. When the price of prescription medication increases, consumers may still continue to purchase it regardless of the price change, as their health and well-being depend on it. The demand for prescription medication is relatively unresponsive to changes in price because it is a necessity and does not have easily accessible alternatives. People are generally willing to pay higher prices for medications they need, even if it means reducing spending on other goods and services. Thus, prescription medication is considered an inelastic product.For more such questions on elastic and inelastic product, click on:
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Why can’t you
feel the effect of the reaction
force when an object falls to
Earth?
Answers
Answer:
Because the Earth is EXTREMELY massive
Explanation:
7. A jogger runs three blocks south, two blocks east, 4 blocks north and
two blocks west. What is the DISTANCE the jogger ran? *
Answers
Answer:
11 blocks
Explanation:
distance is adding up the numbers while displacement is the difference in starting and ending points
A high-speed train travels with an average speed of 227 km/hr. The train travels for 2 hrs. How far does the train travel?
Answers
Answer: The answer would be 454 miles.
Explanation: You multiply the average speed by time travelled
6. I ran 12.2 km in 1.4 hours. Then I ran another 19.3 km uphill in 2.2 hours. What was my average speed?
Answers
Answer: 8.75 km/hr
Explanation:
Concept to know
Average speed: total distance/total time
-------------------------------------------------------
total distance/total time
=(12.2+19.3)/(1.4+2.2) ⇔ add the numbers of two time running together
=31.5/3.6 ⇔ simplify
=8.75 km/hr
Hope this helps!! :)
Please let me know if you have any question
what generates the force that results in hydrostatic pressure?
Answers
The force that leads to hydrostatic pressure is generated by the weight of a fluid column.
The hydrostatic pressure is exerted on any surface immersed in a fluid due to the weight of the fluid column on top of it. The hydrostatic pressure increases as the fluid column's height increases, and it is a result of gravity acting on the fluid column's mass. As a result, the hydrostatic pressure formula is :P = ρgh, where P is hydrostatic pressure, ρ is the density of the fluid, g is the acceleration due to gravity, and h is the depth of the fluid column from the surface.
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What types of energy transformations take place when a balloon lights a light bulb?
Answers
How will the electrostatic force be changed if the distance between electric charges is reduced one half of the original distance?
A) more than original force
B) less than original force
C) impossible to determine
D) the same as original force
Answers
The real power delivered by a source to two impedances Z
1
=6+j5Ω and Z
2
=15+j7Ω, connected in parallel, is 1600 watt. Determine the: (a) Real power absorbed by each of the impedances. (b) Source current. Note: sinusoidal quantities should be considered RMS value for Q-5.
Answers
The real power absorbed by Z2 is 2012.28 W.
(b) Source current is given by; I = 7.23 A.
Real power absorbed by the impedance is given by; P = (Vrms)2/R ………… (1)
Impedance is given by;Z = R + jX [where R = Resistance; X = Reactance]
In the given question, only impedance values are given; we have to calculate resistance from impedance values. So,Resistance of Z1 is given by;
R1 = 6 Ω ………. (2)
Reactance of Z1 is given by;X1 = 5 Ω ………. (3)
Resistance of Z2 is given by;R2 = 15 Ω ………. (4)
Reactance of Z2 is given by;X2 = 7 Ω ………. (5)
For calculating real power absorbed by each impedance, first we have to calculate RMS voltage across each impedance. RMS voltage across Z1 is given by;
Vrms = VRMS /√2 [where VRMS = Voltage of the source] In the given question, VRMS is not given directly, but we can calculate it from the given data. The parallel circuit is connected across the source voltage.
In a parallel circuit, voltage across each element is the same. So, the RMS voltage across the parallel combination is the same as the RMS voltage of the source.
RMS voltage of the source is given by;P = Vrms2 / RrmsRrms = Vrms / I [where I = Current]
Substitute Rrms in terms of Vrms and I in equation (1);P = (Vrms)2 / (Vrms / I)P = Vrms × I ……….. (6)
From equation (6), we can find the value of current, I.The source current is given by;I = P / VrmsI = 1600 / Vrms ……….. (7)Substitute VRMS from equation (7) in equation (6);
P = Vrms × I = I2 × RrmsFrom equation (6);
For Z1,P1 = Vrms2 / R1 ………. (8)For Z2,P2 = Vrms2 / R2 ……….. (9)
From equation (7), Vrms = 1600 / I Substitute Vrms in equation (8);P1 = (1600 / I)2 / 6 = (2560000 / I2 ) ……… (10)
Substitute Vrms in equation (9);P2 = (1600 / I)2 / 15 = (10240000 / I2 ) ………. (11)
From equation (6),P = I2 × Rrms
Total resistance in parallel combination; Rp = Z1 × Z2 / (Z1 + Z2)Rp = (6 + j5) × (15 + j7) / (6 + j5 + 15 + j7)Rp = (90 – 35) + j(105 + 60) / 21 + j12Rp = 55/21 + j165/21
Rp = 2.619 + j7.857RMS value of parallel current flowing through the impedance;
I = VRMS / RpI = VRMS × 21 / (55 + j165)I = VRMS × 21 / 170.385∠73.300 I = 0.123 VRMS ∠ -73.300Therefore, the RMS value of the source current is;I = 1600 / VRMSI = 1600 / 220.91I = 7.23 A
Substitute I in equation (10); P1 = (2560000 / (7.23)2)P1 = 503.07 W.
Therefore, the real power absorbed by Z1 is 503.07 W. Substitute I in equation (11); P2 = (10240000 / (7.23)2)P2 = 2012.28 W.
Therefore, the real power absorbed by Z2 is 2012.28 W.
(b) Source current is given by; I = 7.23 A.
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A hockey puck with mass 170 g is attached to a rope of length 65.0 cm and swung in a horizontal circle against the ice at a rate of 53.0 rpm. Assuming the ice is frictionless, what is the tension in the rope?
Answers
This question involves the concepts of tension force and centripetal force.
The tension force in the rope is "3.4 N".
In this scenario, the centripetal force shall be acting as the tension force of the rope. Because in order for the puck to move in a circular path, the tension force in the rope must be equal to the centripetal force.
\(Tension\ Force = Centripetal\ Force\\F = \frac{mv^2}{r}\)
where,
F = tension force = ?
m = mass of puck = 170 g = 0.17 kg
r = radius of path = length of rope = 65 cm = 0.65 m
v = linear speed of puck = r(angular speed) = (0.65 m)(53 rpm)\((\frac{2\pi\ rad}{1\ rev})(\frac{1\ min}{60\ s})\)
v = 3.61 m/s
Therefore,
\(F = \frac{(0.17\ kg)(3.61\ m/s)^2}{0.65\ m}\)
F = 3.4 N
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The attached picture shows the centripetal force.
Tarzan prepares to swing and much to his dismay, gets his loincloth stuck on a branch. He's left hanging with the vine pulling him upwards at a 40-degree angle and his loincloth pulling him horizontally to the right. 1.) Tarzan's mass is 75kg. Calculate his weight. 2.) Use the appropriate equation for for the forces on Tarzan to determine the tension on the vine. 3.) Determine the tension on the vine
Answers
(1) The weight of Tarzan is 735 N.
(2) The equation for the tension on the vine is T = W sinθ.
(3) The tension on the vine is 472.4 N.
What is the weight of Tarzan?
The weight of Tarzan is the downward force of gravity acting on Tarzan due to its weight point downwards.
Mathematically, the formula for the weight of Tarzan is given as;
W = mg
where;
m is the mass of Tarzang is the acceleration due to gravity of EarthThe given parameters include;
the mass of Tarzan = 75 kg
acceleration due to gravity = 9.8 m/s²
W = 75 x 9.8
W = 735 N
The tension on the vine is calculated as follows;
T = W sinθ
where;
θ is the angle of inclinationT = 735 x sin (40)
T = 472.4 N
Thus, the tension in the vine is the vertical component of Tarzan's weight.
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A person that is sleeping on her stomach rolls over so that she is now sleeping on her back. The person moved from the ________ position to the _________ position. (2 points)
a
superior; inferior
b
inferior; superior
c
prone; supine
d
supine; prone
Answers
Answer:
c. prone; supine
Explanation:
John is talking to his friend about painting a fence. He states that if he uses a roller brush he will cover the fence faster than if he uses a bristle brush. This is an example of a a. Law b. Belief c. Theory d. Hypothesis
Answers
Answer:
b
Explanation:
For cardiovascular exercise, it is important to exercise in your:
1. Resting Heart Rate
2. Target Heart Rate
3. Maximum Heart Rate
4. All of the Above
Answers
Answer:
4 target heart rate. is the answer
Explanation:
hope its right
Juanita studies several free-body diagrams in which a normal force is shown. What is always true about a normal force in a free-body diagram?
Answers
Answer: B
Explanation: it is perpendicular to a surface
Answer:
it is perpendicular to a surface
Explanation:
calculate the velocity of an object moved around a circle with a radius of 1.65
Answers
The velocity of an object moved around a circle with a radius of 1.65 is \(v= 2.4 m/s\)
What is centripetal force?The force applied to an item in curved motion that is pointed toward the axis of rotation or the center of curvature is known as a centripetal force. Newtons are used to measure centripetal force. The speed and direction of an object's motion are measured by its velocity. In kinematics, the area of classical mechanics that deals with the motion of bodies, velocity is a fundamental idea.
The centripetal force equation, is the one that will be used , which is the expression for centripetal acceleration:
\(a=\frac{v^{2} }{r}\)
Then substitute,
\(3.5 = \frac{v^{2} }{1.65}\)
\(v^{2} = 5.775\\\\v= \sqrt{5.775} \\\\v= 2.4 m/s\)
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comlete question;
Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s2.
within most of the temperature range that we find liquid water on earth, what happens to the density of that water as its temperature decreases?
Answers
The maximum density occurs at 4 degrees Celsius, and beyond this point, the density starts to decrease due to the unique structure of water molecules.
Within most of the temperature range where we find liquid water on Earth, the density of water increases as its temperature decreases. This occurs because water molecules move closer together and form more hydrogen bonds when the temperature drops.
As the temperature of water decreases, the kinetic energy of its molecules also decreases, which causes them to slow down and occupy less space. This results in an increased density of water. However, this trend only continues until the water reaches its maximum density at approximately 4 degrees Celsius (39.2 degrees Fahrenheit).
Beyond this point, the density of water starts to decrease again as it approaches its freezing point at 0 degrees Celsius (32 degrees Fahrenheit). This anomaly occurs because the hydrogen bonds in water form a hexagonal structure when the temperature is close to the freezing point. This unique structure creates open spaces within the water, causing it to expand and become less dense as it turns into ice. Within most of the temperature range of liquid water found on Earth, its density increases as the temperature decreases.
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Three origin, the identical second point to the charges right of atx 2.0 hc 50 cm, are and placed the on thrd the 1s at x-axis. the 100 the cm first mark. charge 15 what at are the the magnitude le and direction of the electrostatic torce which acts on the charge at the or ongin?
Answers
The magnitude and direction of the electrostatic torce is - 0.00712 x 10^9N towards left direction
Given:
q1 = +2 uC
q2 = -2 uC
q3 = +4 uC
To Find:
magnitude le and direction of the electrostatic torce
Solution: Electric force is a vector quantity. The electric force is proportional to the product of the magnitude of the charges. It is inversely proportional to the square of the distance between the charges. The electric force is calculated by,
F = kqQ/r^2
Force between q1 and q2
F1 = +2 x -2 x k/50 x 50 = - 0.0016k
Force between q1 and q3
F2 = +2 x +4 x k/100 x 100 = + 0.0008k
Net force on charge at origin is F1 + F2
F(net) = F1 + F2 = - 0.0016k + 0.0008k
F(net) = - 0.0008 x 8.9 x 10^9 = - 0.00712 x 10^9N
So, force on charge at origin is - 0.00712 x 10^9N and towards left direction
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Physical science help pls
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The amount of energy a battery can hold is known as its power capacity. Watt-hours are a common way to measure this power (the symbol Wh).
How do you calculate resistor color code?Current times voltage equals power. This relationship demonstrates how voltage and current are crucial in determining what a battery is good for. The higher the power, the quicker the rate at which a battery can perform work.
P = E/t, where P stands for power, E for energy, and t for time in seconds, is the formula. According to this equation, power is the amount of energy consumed in a given amount of time.
Read the colour codes on the resistor while holding it with the gold or silver band to the right. From the bands on the resistor, choose the appropriate colour code. From left to right, read the colours. Now the resistance value depending on the supplied colour code is visible.
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A typical protostar may be several thousand times more luminous than the sun. what is the source of this energy?
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The source of this energy is from the release of gravitational energy as the protostar continues to shrink.
How are stars born and what is a protostar?Nebulae have as possible differences in gas and dust. Some factors, such as turbulence, can cause one of them to contract. This contraction of the set of materials causes the elaboration and execution of this phase of materials, generating what is usually called, in this protostar.
A protostar is formed by the contraction of a giant molecular cloud in the interstellar medium. Stars form within relatively dense concentrations of interstellar gas and dust known as molecular clouds.
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