• ### Physics help please ~~?

A 10-cm-diameter parallel-plate capacitor has a 1.0 mm spacing. The electric field between the plates is increasing at the rate 1.0×10^6 V/ms What is the magnetic field strength 2.7 cm from the axis? I have tried using the formula B = μ0 ε0 (R² / 2r) dE/dt I got 5.15*10^-13 but it is wrong. Need help with it. Thanks for any help.
A 10-cm-diameter parallel-plate capacitor has a 1.0 mm spacing. The electric field between the plates is increasing at the rate 1.0×10^6 V/ms What is the magnetic field strength 2.7 cm from the axis? I have tried using the formula B = μ0 ε0 (R² / 2r) dE/dt I got 5.15*10^-13 but it is wrong. Need help with it. Thanks for any help.
1 answer · Physics · 1 year ago
• ### Physics help ~~?

In a two-slit interference pattern, the intensity at the peak of the central maximum is Io. Part A At a point in the pattern where the phase difference between the waves from the two slits is 61.0 ∘, what is the intensity? Give your answer as a fraction of Io. I/Io = 0.742 (correct) Part B What is the path difference for light with a wavelength of... show more
In a two-slit interference pattern, the intensity at the peak of the central maximum is Io. Part A At a point in the pattern where the phase difference between the waves from the two slits is 61.0 ∘, what is the intensity? Give your answer as a fraction of Io. I/Io = 0.742 (correct) Part B What is the path difference for light with a wavelength of 490 nm from the two slits at a point where the phase angle is 61.0 ∘? __________ nm
1 answer · Physics · 1 year ago
• ### Physics electrostatics help?

At a particular instant, charge q1 = 4.70×10^−6 C is at the point (0, 0.250 m, 0) and has velocity v1=(9.20×10^5m/s)ι^. Charge q2 = −2.20×10^−6 C is at the point (0.150 m, 0, 0) and has velocity v2=(−5.30×10^5m/s)j^. Part A At this instant, what is the magnetic force that q1 exerts on q2? Enter the x, y, and z components of the force separated by... show more
At a particular instant, charge q1 = 4.70×10^−6 C is at the point (0, 0.250 m, 0) and has velocity v1=(9.20×10^5m/s)ι^. Charge q2 = −2.20×10^−6 C is at the point (0.150 m, 0, 0) and has velocity v2=(−5.30×10^5m/s)j^. Part A At this instant, what is the magnetic force that q1 exerts on q2? Enter the x, y, and z components of the force separated by commas. Fx, Fy, Fz = ____ ____ ____ μN
1 answer · Physics · 2 years ago
• ### Physics help please ~~?

I did Part A correctly, just need help with Part B. How does a sprinter sprint? A) The sprinter pushes forward on the ground, which pushes back (backward) on her. This is the only horizontal force on the sprinter, so she accelerates forward. B) The sprinter pushes backward on the ground, which pushes her in the same direction (backward) on her.... show more
I did Part A correctly, just need help with Part B. How does a sprinter sprint? A) The sprinter pushes forward on the ground, which pushes back (backward) on her. This is the only horizontal force on the sprinter, so she accelerates forward. B) The sprinter pushes backward on the ground, which pushes her in the same direction (backward) on her. This is the only horizontal force on the sprinter, so she accelerates forward. C)The sprinter pushes backward on the ground, which pushes back (forward) on her. This is the only horizontal force on the sprinter, so she accelerates forward. **Correct Answer** D) The sprinter pushes forward on the ground, which pushes her in the same direction (forward) on her. This is the only horizontal force on the sprinter, so she accelerates forward. Part B Select the correct interaction diagram. (Image attached below)
1 answer · Physics · 2 years ago
• ### What is the resistance through R2? Electrostatics help ~~?

In (Figure 1) the battery has emf 43.0 V and negligible internal resistance. R1 = 6.00 Ω . The current through R1 is 2.50 A and the current through R3 = 4.50 A . Part A What is the resistance R2? Part B What is the resistance R3? https://session.masteringphysics.com/pro...
In (Figure 1) the battery has emf 43.0 V and negligible internal resistance. R1 = 6.00 Ω . The current through R1 is 2.50 A and the current through R3 = 4.50 A . Part A What is the resistance R2? Part B What is the resistance R3? https://session.masteringphysics.com/pro...
1 answer · Physics · 2 years ago
• ### Physics electrostatcs help~~?

In the following figure(Figure 1) , the battery has negligible internal resistance and E = 42.0 V . R1 = R2 = 3.10 Ω and R4 = 3.10 Ω . Part A What must the resistance R3 be for the resistor network to dissipate electrical energy at a rate of 299 W ? R3= ____________ https://session.masteringphysics.com/problemAsset/2037935/1/YF_26_55.jpg I am... show more
In the following figure(Figure 1) , the battery has negligible internal resistance and E = 42.0 V . R1 = R2 = 3.10 Ω and R4 = 3.10 Ω . Part A What must the resistance R3 be for the resistor network to dissipate electrical energy at a rate of 299 W ? R3= ____________ https://session.masteringphysics.com/pro... I am getting 5.32 but it says "Not quite. Check through your calculations; you may have made a rounding error " I tried 5.33 but still says the same.
1 answer · Physics · 2 years ago
• ### Physics help ~~?

A 12.0 −μF capacitor is connected through a 0.895 −MΩ resistor to a constant potential difference of 60.0 V. Part A Compute the charge on the capacitor at the following times after the connections are made: 0, 5.0 s, 10.0 s, 20.0 s, and 100.0 s. q0, q5.0, q10, q20, q100 = 0,2.7×10^−4, 4.4×10^−4, 6.1×10−^4, 7.2×10^−4 C I did Part A correctly,... show more
A 12.0 −μF capacitor is connected through a 0.895 −MΩ resistor to a constant potential difference of 60.0 V. Part A Compute the charge on the capacitor at the following times after the connections are made: 0, 5.0 s, 10.0 s, 20.0 s, and 100.0 s. q0, q5.0, q10, q20, q100 = 0,2.7×10^−4, 4.4×10^−4, 6.1×10−^4, 7.2×10^−4 C I did Part A correctly, Need help with Part B Part B Compute the charging currents at the same instants.
2 answers · Physics · 2 years ago
• ### Physics help please ~~ Multiple choice?

Boxes A and B in (Figure 1) both remain at rest. Part A Is the friction force on A larger than, smaller than, or equal to the friction force on B? A) The friction force on A is larger than the friction force on B. B) The friction force on A is smaller than the friction force on B. C) The friction force on A is equal to the friction force on... show more
Boxes A and B in (Figure 1) both remain at rest. Part A Is the friction force on A larger than, smaller than, or equal to the friction force on B? A) The friction force on A is larger than the friction force on B. B) The friction force on A is smaller than the friction force on B. C) The friction force on A is equal to the friction force on B. https://session.masteringphysics.com/pro...
1 answer · Physics · 2 years ago
• ### Electrostatics help ~~ Physics?

A heating element made of tungsten wire is connected to a large battery that has negligible internal resistance. When the heating element reaches 80.0∘C, it consumes electrical energy at a rate of 480 W . Assume that the temperature coefficient of resistivity has the value given in Table 25.2 in the textbook and that it is constant over the... show more
A heating element made of tungsten wire is connected to a large battery that has negligible internal resistance. When the heating element reaches 80.0∘C, it consumes electrical energy at a rate of 480 W . Assume that the temperature coefficient of resistivity has the value given in Table 25.2 in the textbook and that it is constant over the temperature range in this problem. In the equation R(T)=R0[1+α(T−T0)] take T0 to be 20.0∘C. Part A What is its power consumption when the temperature of the heating element is 110.0 ∘C?
2 answers · Physics · 2 years ago
• ### Electrostatics help ~ Physis~~?

An overhead transmission cable for electrical power is 2000 m long and consists of two parallel copper wires, each encased in insulating material. A short circuit has developed somewhere along the length of the cable where the insulation has worn thin and the two wires are in contact. As a power-company employee, you must locate the short so that... show more
An overhead transmission cable for electrical power is 2000 m long and consists of two parallel copper wires, each encased in insulating material. A short circuit has developed somewhere along the length of the cable where the insulation has worn thin and the two wires are in contact. As a power-company employee, you must locate the short so that repair crews can be sent to that location. Both ends of the cable have been disconnected from the power grid. At one end of the cable (point A), you connect the ends of the two wires to a 9.00-V battery that has negligible internal resistance and measure that 2.66 A of current flows through the battery. At the other end of the cable (point B), you attach those two wires to the battery and measure that 2.05 A of current flows through the battery. Part A How far is the short from point A?
2 answers · Engineering · 2 years ago
• ### Physics help ~~?

Choose a correct short description of a real object for which this would be the correct free-body diagram. (Figure) https://session.masteringphysics.com/problemAsset/2311624/4/05.EX21.jpg Check all that apply. A) An object hanging from a rope is moving up with a constant acceleration. B) An object hanging from a rope is moving down with a... show more
Choose a correct short description of a real object for which this would be the correct free-body diagram. (Figure) https://session.masteringphysics.com/pro... Check all that apply. A) An object hanging from a rope is moving up with a constant acceleration. B) An object hanging from a rope is moving down with a constant speed. C) An object hanging from a rope is moving up with a constant speed. D) An object hanging from a rope is moving down with a constant acceleration.
1 answer · Physics · 2 years ago
• ### Physics help needed ~~?

Protons in the nucleus are of the order of 10^−15m (1 fm) apart. Part A What is the magnitude of the electric field produced by a proton at a distance of 1.50 fm from it? E =________ N/C Part B How does this field compare in magnitude to the field in Example 21.7? E/epsion = ____________
Protons in the nucleus are of the order of 10^−15m (1 fm) apart. Part A What is the magnitude of the electric field produced by a proton at a distance of 1.50 fm from it? E =________ N/C Part B How does this field compare in magnitude to the field in Example 21.7? E/epsion = ____________
1 answer · Physics · 2 years ago
• ### Physics help~~ Capacitors~~?

In the figure (Figure) , C1 = C5 = 9.0 μF and C2= C3 = C4 = 4.6 μF . The applied potential is Vab = 250 V . Part A What is the equivalent capacitance of the network between points a and b? C=__________ Part B Calculate the charge on each capacitor and the potential difference across each capacitor. Q1=__________ Part C Find V1 V1=... show more
In the figure (Figure) , C1 = C5 = 9.0 μF and C2= C3 = C4 = 4.6 μF . The applied potential is Vab = 250 V . Part A What is the equivalent capacitance of the network between points a and b? C=__________ Part B Calculate the charge on each capacitor and the potential difference across each capacitor. Q1=__________ Part C Find V1 V1= __________ https://session.masteringphysics.com/pro... Update: I found out C= 2.7*10^-6 , Q1=6.8*10^-4, and V1=76 V I just need help in finding Q2 and V2 ??
2 answers · Physics · 2 years ago
• ### Mastering physics?

A positive point charge q1 = +5.00×10^−4 C is held at a fixed position. A small object with mass 7.00×10^−3 kg and charge q2 = −3.00×10^−4 C is projected directly at q1. Ignore gravity. When q2 is 0.400 m away, its speed is 800 m/s. Part A What is its speed when it is 0.200 m from q1? V= ____________
A positive point charge q1 = +5.00×10^−4 C is held at a fixed position. A small object with mass 7.00×10^−3 kg and charge q2 = −3.00×10^−4 C is projected directly at q1. Ignore gravity. When q2 is 0.400 m away, its speed is 800 m/s. Part A What is its speed when it is 0.200 m from q1? V= ____________
1 answer · Physics · 2 years ago
• ### Physics help needed?

1 answer · Physics · 3 years ago
• ### Physics help please ~~?

Please see the image attached. I am not sure if the option A and B are correct, because they both appear to be the same to me. Any help really appreciated.
Please see the image attached. I am not sure if the option A and B are correct, because they both appear to be the same to me. Any help really appreciated.
1 answer · Physics · 3 years ago
• ### Physics help needed ~~?

image attached ~~ thanks a lot for helping.
image attached ~~ thanks a lot for helping.
2 answers · Physics · 3 years ago
• ### Physics help please !!?

Please see the image attached ~~
Please see the image attached ~~
1 answer · Physics · 3 years ago
• ### Calc 3 help needed ~~?

2 answers · Mathematics · 3 years ago
• ### Calculus 3 short question ~~?

Write a formula for a two-dimensional vector field which has all vectors parallel to the x-axis and all vectors on a horizontal line having the same magnitude. V⃗ =
Write a formula for a two-dimensional vector field which has all vectors parallel to the x-axis and all vectors on a horizontal line having the same magnitude. V⃗ =
1 answer · Physics · 3 years ago