Earth's orbit is a nearly circular ellipse with the sun at one focus. how would its orbit change if earth were twice as massive? a. the orbit would still be an ellipse, but the sun would now be at the center of the ellipse. b. the orbit would become a much flatter, more eccentric ellipse. c. earth would fly off into space, never to return. d. the orbit would not change at all.

Consider a resistor with color code “orange blue brown gold” and a measured value of 370 ω. determine the following: nominal value, tolerance, % error, and the probability of another resistor from the same manufacturing batch having a value closer to nominal than this one. use matlab or excel to evaluate the erf function.

State the right hand rule of the direction of magnetic field in a conductor carrying current

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?