I agree with the first three. I'm not sure about the last one as to whether it is C or D.
Please give your answers so that we can check them.
An infinitely long wire carries a current I=100A. Below the wire a rod of length L=10cm is forced to move at a constant speed v=5m/s along horizontal conducting rails. The rod and rails form a conducting loop. The rod has resistance of R=0.4ohms. The rails have neglibible resi...
A straight copper wire that is 1 milimeter in diameter carries a current of 20 miliamps. Whas the magnitude of the largest magnetic field created by this wire in Tesla?
Two thin, infinitely long, parallel wires are lying on the ground a distance d=3cm apart. They carry a current Io=200A going into the page. A third thin, infinitely long wire with mass per unit length λ=5g/m carries current I going out of the page. What is the value of th...
Problem 3- A 12 kg stone slides down a snow-covered hill, leaving point A with a speed of 10 m/s . There is no friction on the hill between points A and B, but there is friction on the level ground at the bottom of the hill, between B and the wall. After entering the rough hor...
Problem 2- A 350 kg roller coaster starts from rest at point A and slides down the frictionless loop-the-loop shown in the figure. a) How fast is the roller coaster moving at point B? b) How hard does it press against the track at point B?
Problem 1- In one day, a 85 kg mountain climber ascends from the 1440 m level on a vertical cliff to the top at 2360 m . The next day, she descends from the top to the base of the cliff, which is at an elevation of 1310 m . a) What is her gravitational potential energy on the ...
a) Use ratio and proportion... 500 tagged birds/n total birds = 20/215 by cross products: 20n = 500 * 215 20n = 107,500 n = 107,500 / 20 = 5,375 b) ? c) In early spring the recently hatched baby birds are probably not available for capture, as they are still in the nest. Howev...