Two cars are traveling straight toward each other. each car is going 10 km/hr. a mosquito is riding on the front bumper of one the cars. when the cars are 20 km apart, the mosquito leaves the bumper and flies toward the other bumper at 30 km/hr. when it gets to the other bumper, it abruptly turns around and flies back to the other bumper, and keeps repeating the back-and-forth trip from bumper to bumper, until the cars collide, and squash! how far, in kilometers, did the mosquito travel in its total back-and-forth trips?

The dipole moment of the water molecule (h2o) is 6.17x10^-30 c.m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?

Aviolently rotating column of air is formed around a region of extremely low air pressure above land. which of these weather conditions is most likely to follow? blizzard cyclone tornado hurricane

An object with a mass of 1.5 kg changes its velocity from + 15 m/s to +22 m/s during a time interval of 3.5 seconds. what impulse was delivered to the objects?