One molecule of dinitrogen tetroxide contains A two nitrogen atoms and two oxygen atoms.
.
B. four nitrogen atoms and two oxygen atoms.
Octwo nitrogen atoms and four oxygen atoms.
D. four nitrogen atoms and four oxygen atoms.

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

How will the system respond to a temperature increase?

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?