wire loop of radius 12 cm and resistance 8.5 o is located in a uniform magnetic field e that changes in magnitude as given in fig. 30-38. the vertical axis scale is set by b, : 0.50 t, and the horizontal axis scale is set by r, - 6.00 s. the loop's plane is perpendicular to e . what emf is induced in the loop during time intervals (a) 0 to 2.0 s., (b) 2.0 s to 4.0 s., and (c) a.0 s to 6.0 s?
Answers
The EMF induced in the loop of radius 12 cm and resistance 8.5 Ω is located in a uniform magnetic field e that changes in magnitude during 0 s to 2 s is - 0.011 mV, 2 s to 4 s is 0 and 4 s to 6 s is 0.011 mV
ε = - dΦ / dt
Φ = B A
ε = - - dBA / dt
ε = - B dA / dt - A dB / dt
Since the area is constant through time,
ε = - A dB / dt
ε = - π r² dB / dt
a ) For 0 to 2.0 s,
ε = - π ( 0.12 )² ( ( 0.5 - 0 ) / ( 2 - 0 ) )
ε = - 1.1 * 10⁻² V
ε = - 0.011 mV
b ) For 2.0 s to 4.0 s,
ε = - π ( 0.12 )² ( ( 0.5 - 0.5 ) / ( 4 - 2 ) )
ε = 0
c ) For 4.0 s to 6.0 s,
ε = - π ( 0.12 )² ( ( 0 - 0.5 ) / ( 6 - 4 ) )
ε = 1.1 * 10⁻² V
ε = 0.011 mV
Therefore, the EMF induced in the loop during time intervals,
a ) 0 s to 2 s is - 0.011 mV
b ) 2 s to 4 s is 0
c ) 4 s to 6 s is 0.011 mV
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Related Questions
Determine the components, the magnitude and the angle (counter-clockwise with respect to the positive x axis) of the resultant vector, R = B + C. Given: 0 Vector B: magnitude = 5.00 units, angle = 115 . 0 Vector C: magnitude = 4.00 units, angle = 255 .
Answers
Answer:
Explanation:
We shall represent vector B and C in terms of i and j .
B = 5 cos115 i + 5 sin115 j
= -2.11 i + 4.53j
Similarly
C = 4 cos255 i + 4 sin225 j
= -1.04 i -3.86 j
R = B + C
= -2.11 i + 4.53j -1.04 i -3.86 j
= -3.15 i + .67 j
magnitude of R
= √( 3.15² + .67² )
= √( 9.92 +.45 )
= 3.22
Angle Ф
TanФ = - .67 / 3.15
= - .21
Ф = - 12⁰
= 180 - 12
= 168 degree counterclockwise from positive x axis.
Which one of the following possesses the highest elasticity? a. Rubber b. Glass c. Copper d. Steel
Answers
Answer:
Correct option is D)
Steel
Answer:
Steel gives
Explanation:
Glass: 50−90GPa
Rubber:0.01−0.1GPa
Steel:200GPa
Copper: 117GPa
A cylinder-piston system contains an ideal gas at a pressure of 1.5 105 pa.
the piston is pushed out, allowing the gas to expand from an initial volume of
0.0002 m2 to a final volume of 0.0006 m3. the system absorbs 32 j of heat
during this process. what is the change in internal energy? [use au=q-w=q-
pav]
Answers
The change in the internal energy of the ideal gas is determined as -28 J.
Work done on the gas
The work done on the ideal gas is calculated as follows;
w = -PΔV
w = -1.5 x 10⁵(0.0006 - 0.0002)
w = -60 J
Change in the internal energy of the gasΔU = w + q
ΔU = -60J + 32 J
ΔU = -28 J
Thus, the change in the internal energy of the ideal gas is determined as -28 J.
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Two thin-walled concentric conducting spheres of radii 5. 0 cm and 10 cm have a potential difference of 100 V between them. (k= 1/4πε0 = 8. 99 × 109 N · m2/C2)
(a) What is the capacitance of this combination?
(b) What is the charge carried by each sphere?
Answers
a) The capacitance of the combination is 1.79 × \(10^-11 F.\)
b) The charge on each sphere is 1.79 ×\(10^-9 C.\)
(a) The capacitance of this combination can be calculated using the formula:
C = Q / V
where C is the capacitance, Q is the charge stored in the spheres, and V is the potential difference between them. Since the spheres are concentric and have no net charge, the charge on each sphere must be equal in magnitude and opposite in sign.
Using the formula for capacitance and the given values, we have:
C = Q / V = (4πε0r1r2) / (r2 - r1)
where r1 and r2 are the radii of the inner and outer spheres, respectively. Substituting the given values, we get:
C = (4πε0 × 5.0 × \(10^-2 m\)× 10.0 ×\(10^-2 m\) / (10.0 × \(10^-2 m\) - 5.0 × \(10^-2 m\)) = 1.79 × \(10^-11 F\)
Therefore, the capacitance of the combination is 1.79 × \(10^-11 F.\)
(b) The charge on each sphere can be calculated using the formula:
Q = CV
where C is the capacitance and V is the potential difference between the spheres. Substituting the given values, we get:
Q = CV = (1.79 ×\(10^-11 F)\) × (100 V) = 1.79 × \(10^-9 C\)
Therefore, the charge on each sphere is 1.79 ×\(10^-9 C.\)
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A man slips on the oily floor, he wants to move out of this area. He is alone. He throws his bag to move out of this slippery area. How can this act help him?
Answers
A man throwing his bag to move out of this slippery area will help him by providing a surface which increases the frictional force and therefore prevents him from slipping.
What is Friction?This is the type of force which resists the motion of one object against another and is formed when two substances rub or slide against one another. The main reason why people slip or fall is as a result of the low frictional force between the legs and the surface.
The bag will help increase the frictional force between the individual and the oily surface which will therefore prevent him from slipping and help him move out of the house.
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I am having a bit of difficulty with this lab question:
_________________________________________
The passage of an occluded front may be accompanied by widespread precipitation and little temperature change at ground level. This is because occluded fronts are a combination of (1). [one / two / three] cold/cool air mass(es), which shifts a (2). [cold / warm / hot] air mass (3). [aloft / sideways / downwards].
_________________________________________
Currently, I have my answers as follows:
1. two cool/cold air masses
2. warm
3. downwards
Could someone help me out and let me know if I am correct? Thanks!
Answers
This is due to the fact that occluded fronts combine two cold air masses, which causes one of the cold air masses to go downward.
When a warm air mass is sandwiched between two cold air masses, an occluded front occurs. In an occlusion, the warm front passes over the cold front, which dives beneath it.
In a front is obscured, the warm front is fully supplanted by the cold front, in which the warm air masses have completely disappeared. Furthermore, there are frequent shifts in the various weather producing circumstances because of the cold front's relatively low temperature.
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Wolfgang pauli hypothesized an exclusion principle. This principle says two electrons in an atom cannot have the same what?.
Answers
No two electrons in an atom or molecule may have the same four electronic quantum numbers, according to the Pauli Exclusion Principle. Only two electrons can fit into an orbital at a time, hence they must have opposing spins.
What is Pauli's exclusion principle ?According to Pauli's exclusion principle, two electrons cannot share the same orbital and must have anti-parallel or opposite spins. Example: Two bonded electrons in a neutral helium atom achieve the opposite spin to occupy the lowest-energy () states.
It is known as the exclusion principle because, in accordance with it, all other electrons in an atom are excluded from having the same set of specific values for the four quantum numbers as one electron in the atom.Learn more about Pauli's exclusion principle here:
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A sound wave travelling in water has a frequency of 100 Hz. The speed of sound in water is 1482 m/s. Calculate the wavelength of the wave
Answers
λ = v/f
λ = 1482/100
Answer:
λ = 14.82 m
This group of elements is in group 2?
Answers
Answer:
If you meant the Periodic Table it's the alkaline-earth metal
beryllium (Be)
magnesium (Mg)
calcium (Ca)
strontium (Sr)
barium (Ba)
radium (Ra)
Explanation:
A compressional wave looks most like a:
line of hills and valleys.
a straight line.
coiled spring.
None of the choices are correct.
Answers
Answer:
non of the choice are correct
Explanation:
because waves look like waves only
A large rock has a mass of 7.84 x 107 grams. What is this mass inItons. 1 ton = 907.2 kilograms.
Answers
The mass of the rock is approximately 86.304 tons.
To convert the mass of the rock from grams to tons, we can use the conversion factor that 1 ton is equal to 907.2 kilograms.
Mass of the rock = 7.84 x 10^7 grams
To convert grams to kilograms, we divide by 1000:
Mass in kilograms = (7.84 x 10^7 grams) / 1000 = 7.84 x 10^4 kilograms
Now, to convert kilograms to tons, we divide by 907.2:
Mass in tons = (7.84 x 10^4 kilograms) / 907.2 = 86.304 tons
Therefore, the mass of the rock is approximately 86.304 tons.
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how to use a circuit breaker
?
Answers
Answer:
circuit breakers work in a similar way to fuses, and also protect the circuit from damage if too much current flows but work in a different way. when circuit breakers detect a surge in current in a circuit, they break the circuit by opening a switch. one type of circuit breaker used instead of a fuse and an earth wire is a Residual Current Circuit Breaker (RCCB)
In the product 6, what does the coefficient mean?
Answers
Answer: Explanation:
A number used to multiply a variable. Example: 6z means 6 times z, and "z" is a variable, so 6 is a coefficient. ... Example: In ax^2 + bx + c, "x" is a variable, and "a" and "b" are coefficients.
Circular motion requires the application of a constant force in which direction?
Outward from the circle
Toward the center of the circle
Toward the object in motion
Away from an object
Answers
The final motion characteristic for an object undergoing uniform circular motion is the net force. The net force acting upon such an object is directed towards the center of the circle. The net force is said to be an inward or centripetal force.
here you go, just answer the question, 100 points
Answers
Answer:
THANK YOUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Explanation:
I REALLY NEED THIS
Answer:
Oh my gosh yayyy one of the asnwers got deleted!!!! Yay thx for the points
Explanation:
Please help u guys acellus sucks
Answers
Answer:
6.0cm
Explanation:
Given
focal length = 15.0cm
object distance = 10.0cm
Required
Image distance v
Using the formula
1/f = 1/u + 1/v
1/15 = 1/10+1/v
1/v = 1/15 + 1/10
1/v = 2+3/30
1/v = 5/30
v = 30/5
v = 6.0cm
Hence the image distance is 6.0cm
Answer:
6.0 (2 sig figs)
Explanation:
Is it General Physics? I had it and passed the Final Exam with an A in the beginning of July!
please fast
The system shown in the figure below uses three chain comveyors. Each chain has a hydraulic motor: The torque that drives the motors is T: =1500 N.m
1 T2 =700 Nm and, T3 = 300Nm. The displactment volume of the motors is V01 =1000 cm3/rev V02 =1000 cm3/rev and, V09 =500 cm3 /rex. The motss have a volumetric efficiency of 0.9 and an overall efficiency of 0.85. The leakage of the bydraulic motors 1 and 3 is internal completely and the leakage of the hydraulic motor 2 is external completely. The pump produces a constant volumetric flow rate of 6.3U/min.
The orifice of the flow control valve has a 0.5 mm diameter. The pressure fosses through the pipes are neglected. The capacity coefficient of the needie valve is 07. The volumetric Alow rate through the needle valve is given by: Q=C×A2 ×ΔF/rho where C is the capacity coefficient, A is the area of the orifice, ΔP is the difference of pressure through the needle valve and, rho is the density of the fiuid.
The density of the oil used in the hydraulic system is 860 kg/m3 . Determine the rotational speed of the motor 3 in rpm. a. 8 b. 92 c. 67 d. 42 e. 34 E. 56
Answers
The rotational speed of the motor 3 in rpm. b. 92
The figure shows a hydraulic circuit that uses three chain conveyors. The torque that drives the motors is T: =1500 N.m. T2 =700 Nm and, T3 = 300Nm.The volumetric flow rate produced by the pump is 6.3 liters per minute. The displacement volume of the motors is V01 =1000 cm3/rev. V02 =1000 cm3/rev and, V09 =500 cm3/rex.
The motors have a volumetric efficiency of 0.9 and an overall efficiency of 0.85. The leakage of hydraulic motors 1 and 3 is internal completely, while the leakage of hydraulic motor 2 is external completely.The orifice of the flow control valve has a diameter of 0.5 mm. The capacity coefficient of the needle valve is 0.7.
The pressure losses through the pipes are ignored. The volumetric flow rate through the needle valve is Q = C × A2 × ΔP / ρ where C is the capacity coefficient, A is the area of the orifice, ΔP is the pressure difference through the needle valve, and ρ is the density of the fluid. The density of the oil used in the hydraulic system is 860 kg/m3. We need to determine the rotational speed of motor 3 in rpm.
So,Let’s first determine the volumetric flow rate required by hydraulic motor 3. Using the expression of volumetric flow rate through the needle valve, we have Q = C × A2 × ΔP / ρ… (i)We are given that the capacity coefficient of the needle valve is 0.7. Its orifice diameter is 0.5 mm.
Hence, the area of the orifice is given byA2 = π d2 / 4where d is the diameter of the orifice. So, A2 = π × (0.5 mm)2 / 4 = 0.196 mm2 = 1.96 × 10-7 m2Using equation (i), we haveQ = C × A2 × ΔP / ρNow, we will calculate ΔP. To do this, we need to determine the flow rates Q1, Q2, and Q3.Let Q’ be the total volumetric flow rate through the system.
Since the overall efficiency of the system is given as 0.85, we haveQ’ = 0.85 × 6.3 l/min = 5.355 l/min = 5.355 × 10-3 m3/minWe know that the volume of fluid passing through the hydraulic motors is equal to their displacement volume multiplied by the number of revolutions per unit time.So, we haveQ1 = V01 × n1 … (ii)Q2 = V02 × n2 … (iii)Q3 = V03 × n3 … (iv)where V01, V02, and V03 are the displacement volumes of hydraulic motors 1, 2, and 3, respectively.
We are given that V01 = V02 = 1000 cm3/rev and V03 = 500 cm3/rev, which gives V01 = V02 = 1 × 10-6 m3/rev and V03 = 0.5 × 10-6 m3/rev.Substituting equations (ii), (iii), and (iv) in equation (i), we haveQ = C × A2 × (Q1 + Q2 - Q3) / ρSolving for Q3, we getQ3 = (Q1 + Q2 - Q) / C × A2 × ρPutting the given values in the above expression, we haveQ1 = V01 × n1 = (1 × 10-6 m3/rev) × n1Q2 = V02 × n2 = (1 × 10-6 m3/rev) × n2Q3 = V03 × n3 = (0.5 × 10-6 m3/rev) × n3Q = 5.355 × 10-3 m3/min = 5.355 × 10-3 / 60 m3/s = 8.925 × 10-5 m3/sA2 = 1.96 × 10-7 m2C = 0.7ρ = 860 kg/m3
Substituting the above values, we get8.925 × 10-5 = (1 × 10-6 × n1 + 1 × 10-6 × n2 - 0.5 × 10-6 × n3) / (0.7 × 1.96 × 10-7 × 860)Solving for n3, we have n3 = 91.6 rpmSo, the correct option is b. 92.
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What are the advantages of two-dimensional art forms like photographs?
What are the limitations of two-dimensional art forms like photographs?
Answers
Answer:Two dimensional forms can create the illusion of 3 dimensional shapes and spaces.
Explanation:
3. What is the mass of a paratrooper who experiences an air resistance of 400 N and an acceleration of 4.5 m/s2
during a parachute jump.
Answers
Answer:
88.89kg
Explanation:
The formula for mass is m=F/a. If we plug in the values, we get m=400N/4.5m/s^2. The mass is 88.89kg. We know that the unit is in kg because one newton (N) is 1kg*m/s^2. The m/s^2 is cancelled out by the acceleration, and we are left with kg.
Que es la natación paralímpica???
Answers
Answer:
Paralympic swimming is an adaptation of the sport of swimming for athletes with disabilities. Paralympic swimmers compete at the Summer Paralympic Games and at other sports competitions throughout the world. The sport is governed by the International Paralympic Committee.
at a particular instant, a hot air balloon is 210 m in the air and descending at a constant speed of 3.5 m/s. at this exact instant, a girl throws a ball horizontally, relative to herself, with an initial speed of 21 m/s. when she lands, where will she find the ball? ignore air resistance. (find the distance, in meters, from the girl to the ball.)
Answers
The ball which is thrown with a speed of 21 m/s, travels a distance of 129.99 m in the horizontal direction.
Therefore, the vertical component of the ball's motion will be determined by the force of gravity and the initial vertical speed of the balloon.
We can use the following kinematic equation to determine how long it takes for the ball to fall to the ground:
h = ut + 1/2 * g * t^2
where h is the initial height of the ball (equal to the height of the balloon which is 210 m).
u is the initial velocity of the ball in the vertical direction which is 3.5 m/s.
g is the acceleration due to gravity (approximately 9.8 m/s^2),
and t is the time it takes for the ball to fall to the ground.
Plugging in the values we know, we get:
210 = 3.5 * t + 1/2 * 9.8 * t^2
4.9 t^2 + 3.5 t - 210 = 0
t = 6.19 seconds
Now we can use the time it takes for the ball to fall to the ground to determine how far it travels horizontally, given its initial horizontal velocity of 21 m/s. We can use the following equation:
d = v * t
where d is the horizontal distance traveled by the ball, v is its initial horizontal velocity, and t is the time it takes to fall to the ground (which we just calculated).
Plugging in the values we know, we get:
d = 21 * 6.19
d ≈ 129.99 meters
Therefore, the girl will find the ball approximately at a distance of 129.99 meters away from her when she lands after throwing the ball horizontally.
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What is a wave's speed if it has a wavelength of 3.2x10^-7 m and a period of 2.8x10^-12s
Answers
Answer: 1.1·10^5 m/s
Explanation: speed = wavelength · frequency v = λf and
frequency f = 1/T , in which T = period
Speed v= λ/T = 3.2·10^-7 m /2.8·10^-12 s = 114285,7 m/s
How much is the plane's acceleration while breaking if it takes 15 s for its velocity
is changing from 145 m/s to 75m/s?
A. 4.67 m/s
B. 3.4 m/s
C. 45 m/s
D. 23 m/s
Answers
Answer:
A. 4.67 m/s²
Explanation:
u = 145 m/s
v = 75 m/s
t = 15 s
a = v - u / t
= 145 - 75 / 15
= 4.67 m/s²
Hope this helped...
Does taking 1 ml of solution y (pure bleach) out of the first beaker change the solution’s concentration? what would the concentration of the second beaker be? if beaker
Answers
Answer:
yes it change the solution because 1 ml make a difference on that solution, it will be -1 ml solution
Can you all solve this 2 problems I will mark you as brainlist if you are correct
Answers
Answer:
first answer is 70 newtons the second answer is f = 250N
what is the significance of the reed dance
Answers
Answer:
brings together the unmarried girls and young women of the country to cut reeds for the annual repairs
Answer:
The Umhlanga/Reed Dance brings together unmarried girls and young women of the country to cut reeds for the annual repairs to the windbreaks of the queen mother's village. It lasts for five days, and is also symbol of the unity of the nation.
what is universe made off
Answers
Answer:
I mean, correct me if I'm wrong for some reason, but I think its Matter?
Answer:
The Universe is thought to consist of three types of substance: normal matter, 'dark matter' and 'dark energy'. Normal matter consists of the atoms that make up stars, planets, human beings and every other visible object in the Universe.
Explanation:
What are the two parts of the SCM
A. Sternal head, Lateral Head
B. Bilateral Head, Long Head
C. Sternal Head, Clavicular Head
helpp me please
Answers
Answer:
C. Sternal Head, Clavicular Head
Possible effects on magnetic force. 1. No effect 2. Directly proportional 3. Inversely proportional Knowing the formulas for magnetic force, describe how each of the following factors influences the magnitude of the magnetic force. Record your response as a four-digit number below.
Answers
The magnitude of the magnetic force can be influenced by different factors. Understanding the formulas for magnetic force, we can describe how each of these factors affects the magnitude of the magnetic force. These effects can be categorized into three possibilities: no effect, direct proportionality, and inverse proportionality.
1. No effect: In some cases, certain factors may not have any effect on the magnitude of the magnetic force. This means that changing these factors will not cause any change in the magnetic force. It indicates that the magnetic force is not influenced by those specific factors.
2. Directly proportional: When a factor is directly proportional to the magnetic force, it means that increasing or decreasing that factor will directly impact the magnitude of the magnetic force. As the factor increases, the magnetic force also increases proportionally, and vice versa.
3. Inversely proportional: On the other hand, when a factor is inversely proportional to the magnetic force, changing that factor will have an inverse effect on the magnitude of the magnetic force. As the factor increases, the magnetic force decreases proportionally, and vice versa.
To determine the specific four-digit number for each factor, it is necessary to consider the relevant formulas for magnetic force and the specific factors involved.
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What is the solubility of NaCI at 20 degrees?
Answers
Answer:
The solubility of sodium chloride in water is 36.0 g per 100 g water at 20°C. The temperature must be specified because solubility varies with temperature. Or 36.0 g per 100 g
Explanation: