The lightest solid material is silica aerogel, which has a typical density of only about 0.10 g/cm3. The molecular structure of silica aerogel is typically empty space. What is the mass of 5 m3 of silica aerogel?

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 applied force of 3 washers will increase the applied force on the car to n.

Which if these is an etiquette rule? (american football) question 10 options: a. debating with the ref over a call b. not communicating with your team c. post-game handshake d. taunting