In the sum a→+b→=c→, vector a→ has a magnitude of 13.6 m and is angled 40.2° counterclockwise from the +x direction, and vector c→ has a magnitude of 13.8 m and is angled 20.7° counterclockwise from the -x direction. what are (a) the magnitude and (b) the angle (relative to +x) of b→? state your angle as a positive number.

Athermometer is removed from a room where the temperature is 70° f and is taken outside, where the air temperature is 10° f. after one-half minute the thermometer reads 60° f. what is the reading of the thermometer at t = 1 min? (round your answer to two decimal places.) ° f how long will it take for the thermometer to reach 30° f? (round your answer to two decimal places.)

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?

What structural formula represents 4 electrons shared between two atoms?