Rank the following situations according to the pressure, from least to greatest. A.20 N exerted over a surface of 0.35 m2
B.20 N exerted over a surface of 0.65 m2
C.50 N exerted over a surface of 0.05 m2
D.50 N exerted over a surface of 0.35 m2
E.60 N exerted over a surface of 0.55 m2

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You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

70 give a real life example showing how sensory neurons work with the motor neurons

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?