2. A boy lifts a 30N toy car 3 meters above the ground. How much work
did the boy do on the car?
Work (J) = Force (N) x Distance (m)
Work=
X
Work=

Should we celebrate the voyages of zheng he mini q answer key

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?

The chemical formula for carbonic acid, a compound used in carbonated drinks, is h2co3. assume that these symbols represent the three elements of this compound: