The coefficient of static friction between a block and the floor is 0.60 and the coefficient of kinetic friction If a 20-kg block is pushed across the floor by a horizontal force with a constant speed. What is the force applied t
A)
50 N
B)
100 N
C)
120 N
D)
200 N

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

Against his financial advisor's advice, frank has decided to invest his money in some risky stocks because he once made quite a bit of money in the stock market. his decision illustrates a. the representativeness heuristic b. overconfidence c. the availability heuristic d. confirmation bias select the best answer from the choices provided

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?