Two electric charges, q1 and q2, are separated by 20 cm. The value of k is 9x109 N·m2/C2 . q1 equals 1 μC and q2 equals -5 µC. Recall that “µ” means “micro”, which is 10^6. Question is written clearly on photo.

A980-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.6m before stopping.the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. what was that speed?

The is a pea sized structure in the brain that is involved in many aspects of motivation, including sex, aggression,and hunger

Aforce of 6 n acts on a 33 kg object for 9 seconds. what is the objects change in velocity?