• Direction of force on a charge?

1 answer · Physics · 9 months ago
• Physics potential field?

I'm supposed to calculate the size of the electric field at g. However, in order to do that I have to know what the voltage of the nearest lines to it are, and I'm not quite sure how to do that.
I'm supposed to calculate the size of the electric field at g. However, in order to do that I have to know what the voltage of the nearest lines to it are, and I'm not quite sure how to do that.
2 answers · Physics · 9 months ago
• Electron approaching a charged sphere?

An electron starts from rest 2.80 cm from the center of a uniformly charged sphere of radius 1.87 cm. If the sphere carries a total charge of 1.17×10-9 C, how fast will the electron be moving when it reaches the surface of the sphere? I got 1.4065*10^7 m/s but that was wrong
An electron starts from rest 2.80 cm from the center of a uniformly charged sphere of radius 1.87 cm. If the sphere carries a total charge of 1.17×10-9 C, how fast will the electron be moving when it reaches the surface of the sphere? I got 1.4065*10^7 m/s but that was wrong
1 answer · Physics · 9 months ago
• Electric potential problem?

The electric potential at a position located a distance of 22.8 mm from a positive point charge of 7.10×10-9C and 10.9 mm from a second point charge is 1.14 kV. Calculate the value of the second charge. I tried kQ1/r1+kQ2/r2=V and got -2.086*10^-9, but that's wrong, so I need help.
The electric potential at a position located a distance of 22.8 mm from a positive point charge of 7.10×10-9C and 10.9 mm from a second point charge is 1.14 kV. Calculate the value of the second charge. I tried kQ1/r1+kQ2/r2=V and got -2.086*10^-9, but that's wrong, so I need help.
2 answers · Physics · 9 months ago
• Calculus problem?

1 answer · Mathematics · 9 months ago
• Spherical shell problem physics?

A -2.67 μC charge is placed at the center of a conducting spherical shell, and a total charge of +7.60 μC is placed on the shell itself. Calculate the total charge on the outer surface of the conductor. I tried entering in the values for the equation but it didn't work and I got a ridiculously high number
A -2.67 μC charge is placed at the center of a conducting spherical shell, and a total charge of +7.60 μC is placed on the shell itself. Calculate the total charge on the outer surface of the conductor. I tried entering in the values for the equation but it didn't work and I got a ridiculously high number
2 answers · Physics · 9 months ago
• Consider the polar equation r^2(sin(2theta)) = 7?

What is the cartesian equation of this problem?
What is the cartesian equation of this problem?
2 answers · Mathematics · 11 months ago
• Calculus problem?

The curve given by x(t)=3sin(t) and y(t)=4sin(t+8sin(t)) It has two tangent lines at the point (x,y)=(0,0). List both of them in order of increasing slope. Your answers should be in the form of y=f(x).
The curve given by x(t)=3sin(t) and y(t)=4sin(t+8sin(t)) It has two tangent lines at the point (x,y)=(0,0). List both of them in order of increasing slope. Your answers should be in the form of y=f(x).
2 answers · Mathematics · 11 months ago
• Calculus problem?

2 answers · Mathematics · 11 months ago
• Calculus Maclaurin polynomial?

I'm not sure what I'm doing wrong in this question, I followed a similar process for the previous question and it worked out just fine.
I'm not sure what I'm doing wrong in this question, I followed a similar process for the previous question and it worked out just fine.
1 answer · Mathematics · 12 months ago
• What is the radius of convergence for this power series?

1 answer · Mathematics · 12 months ago
• Power series calculus problem?

I've gotten the first part of the problem but what am I doing wrong on the second part? I've tried 14x and 28x but neither work.
I've gotten the first part of the problem but what am I doing wrong on the second part? I've tried 14x and 28x but neither work.
1 answer · Mathematics · 12 months ago
• Calculus problem?

I keep getting this question wrong even though I get help for it, I've tried the answer shown below, I've tried -1, and I've tried 1/2 and -1/2, none of it works.
I keep getting this question wrong even though I get help for it, I've tried the answer shown below, I've tried -1, and I've tried 1/2 and -1/2, none of it works.
2 answers · Mathematics · 12 months ago
• Calculus help?

I keep getting this question wrong even though I get help for it, I've tried the answer shown below, I've tried -1, and I've tried 1/2 and -1/2, none of it works.
I keep getting this question wrong even though I get help for it, I've tried the answer shown below, I've tried -1, and I've tried 1/2 and -1/2, none of it works.
1 answer · Mathematics · 1 year ago
• Ratio test calculus problem?

How do you use the ratio test on a problem like this to find the L? If it was just the fraction I wouldn't have any problems, but its the (-1)^(n+1) that's confusing me.
How do you use the ratio test on a problem like this to find the L? If it was just the fraction I wouldn't have any problems, but its the (-1)^(n+1) that's confusing me.
2 answers · Mathematics · 1 year ago
• How do you perform the ratio test?

For example, how would you perform the ratio test on the problem shown below? We already know that it is convergent via the comparison test, but how would you use the ratio test to find the L for the problem?
For example, how would you perform the ratio test on the problem shown below? We already know that it is convergent via the comparison test, but how would you use the ratio test to find the L for the problem?
1 answer · Mathematics · 1 year ago
• Ratio test calculus problem?

I know that it converges using the comparison test, but how do I perform the ratio test on this problem so as to figure out what L is?
I know that it converges using the comparison test, but how do I perform the ratio test on this problem so as to figure out what L is?
1 answer · Mathematics · 1 year ago
• Infinite series question?

So I'm curious how I'm supposed to find the L given by the ratio test, especially since I don't know how the exclamations are used in this question.
So I'm curious how I'm supposed to find the L given by the ratio test, especially since I don't know how the exclamations are used in this question.
2 answers · Mathematics · 1 year ago
• Would the p series test or geometric series test apply to this problem?

I know how to handle the rest but I'm a little confused on whether it's P series or geometric series that I use.
I know how to handle the rest but I'm a little confused on whether it's P series or geometric series that I use.
1 answer · Mathematics · 1 year ago
• Improper integrals?

1 answer · Mathematics · 1 year ago