Recent content by grandprix

Hi! I came across a problem involving a spigot. In order to find the velocity in the spigot which is located h meters in the tank, one uses the reduced V= sqrt (2gh) equation... how is this different from using V1A1 = V2A2? When would you use this equation? For instance, say you have a...

OOPS! I am sorry I read the wrong question.. 2) there is negative charge on end A with end B remaining neutral. 3) weak repellsion

2) It is weakly repelled (since side B is negative) 3) It is strongly repelled

(1/6)\epsilon0/q?

Homework Statement A point charge of magnitude q is at the center of a cube with sides of length L. Part A What is the electric flux Phi through each of the six faces of the cube? Part B What would be the flux \phithrough a face of the cube if its sides were of length L1...

Homework Statement Two point charges are located on the x axis: one charge, q1 = -10.5 nC, is located at -1.735 m ; the second charge, q2 = 40.0 nC, is at the origin (x=0) Homework Equations The Attempt at a Solution Can somoene show me how to do this? I am stumped

Homework Statement Two point charges are placed on the x axis. The first charge, q1 = 8.00 nC, is placed a distance 16.0 m from the origin along the positive x axis; the second charge, q2 = 6.00 nC, is placed a distance 9.00 m from the origin along the negative x axis. Calculate the...

Homework Statement Here is a pretty straight forward question, i just wanted to double check my answers (in bold!) This problem explores the behavior of charge on conductors. We take as an example a long conducting rod suspended by insulating strings. Assume that the rod is initially...

Oh jeez i was making a careless mistake, I got the answer now!

I got the answer! Thanks for your help.

Homework Statement A person is standing outdoors in the shade where the temperature is 28 degrees C. What is the radiant energy absorbed per second by his head when it is covered with hair? The surface area of the hair (assumed to be flat), is 160 cm^2 and its emissivity is 0.85. Homework...

Homework Statement lf = 79500 cal/kg , lv = 5.4 × 105 cal/kg , c = 1000 cal/kg ◦ C. 9 kg of ice at 0◦C is converted to steam at 100◦C. How much heat is needed? Answer in units of kcal. Homework Equations q=mct The Attempt at a Solution 100*9kg + 79.5 + 540 = 1519.5 I...

Thank you ! I may have done that wrong. I will chck it over

Homework Statement A wheel (solid cylinder), mass of 13 kg and radius of 0.33m is initially at rest. The wheel undergoes an angular acceleration of 5 rad/s^2 for 18 seconds, rotating about its center axis (no translation). Find the Kinetic energy of the wheel at the end of the 1 seconds...

thanks so much!