# Jhun

Most popular questions and responses by Jhun
1. ## calculus

Find the area under one arch of curve y=cos(x/4). This lesson is plane areas in rectangular coordinates. I don't know how to solve it. Thanks for your help.

2. ## Physics

The substation bus bar is made up of 2-iches round copper bars 20 ft. long. What is the resistance of each bar if resistivity is 1.724 x 10-6 ohm-cm.

3. ## calculus

Car A is 30 mi apart from car b. Car A moves 30 mph due east at the same time car b moves 30 degrees south of east. how fast is the distance between them changing after an hour.

Please bear with me. Thank you. Evaluate: Z=(ln(j3) / (2+j))^ 1/j Only j3 is inside of ln function. Then it is divided by 2+j . Then the whole equation is raised to the power of 1/j

5. ## Math(Mechanics)

In finding the minimum thickness for a thin-walled cylinder,should I use the tangential stress equation or the longitudinal stress equation? How about for maximum thickness?

6. ## Math

complex numbers: Evaluate z=(-j 3/4)^-j^3/4

evaluate cos^2 (ej)

8. ## Math, Differential Equation

3ydx= (3(x^2) -1)(dx-dy). Solve by Linear. Thanks!

9. ## calculus

What is the general soln of dy/dx=9(x^2)(y) and particular soln of dy/dx=3x^2(e^-y)

10. ## calculus

calculate the largest area possible that can be made by a 15 meter long wire that will be bent to form a closed plane area. No figure given

1. ## MATH

giuyngu

posted on January 27, 2017
2. ## differential equation

di ko alam eh

posted on September 28, 2015
3. ## calculus

I really don't know. We don't have any figure or anything. I just assumed there position in cartesian plane at (0,0) for Car B, and Car A at (30,0)

posted on July 2, 2015
4. ## Math

for the first week, he will run a total of x=(8.5*.15) + 8.5. So the answer for the first week is 9.775. for the second week, he will run 15% more of the 9.775 miles. So it will become x=(9.775*.15)+ 9.775. And the answer is letter c.

posted on April 7, 2015