Apoint p is placed between two charges, a and b. if the electric field experienced by point p due to charge a is 8.7 × 106 newtons/coulomb and due to charge b is 5.5 × 106 newtons/coulomb, calculate the net electric field at point p.

a> 3.2 × 106 newtons/coulomb
b> 5.5 × 106 newtons/coulomb
c> 8.7 × 106 newtons/coulomb
d> 1.4 × 107 newtons/coulomb

You are given two vectors a⃗ =−3.00ι^ 5.00j^ and b⃗ =5.00ι^ 2.00j^. let the counterclockwise angles be positive.

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up