Suppose you want to determine the electric field in a certain region of space. you have a small object of known charge and an instrument that measures the magnitude and direction of the force exerted on the object by the electric field. how would you determine the magnitude and direction of the electric field if the object were (a) positively charged and (b) negatively charged? (a) the object has a charge of +20.0μc and the instrument indicates that the electric force exerted on it is
40.0μn due east. what are the magnitude and direction of the electric field? (b) what are the magnitude and direction of the electric field if the object has a charge of −10.0μc and the instrument indicates that the force is 20.0μn due west?

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

1.in one challenge on the titan games, competitors have to lift 200 pounds up a long ramp. angel is able to move the weight in 42 seconds. anthony gets it done in only 38 seconds. which statement is true? angel has more power than anthony. angel does more work than anthony. anthony does more work than angel. anthony has more power than angel. 2.a mountain climber exerts 41,000 j of work to climb a cliff. how much power does the climber need if she wants to finish in only 500 seconds? power = work / time 20,500,000 watts 82 watts 0.0122 watts 41,500 watts 3.your family is moving to a new apartment. while lifting a box 83 joules of work is done to put the box on a truck, you exert an upward force of 75 n for 3 s. how much power is required to do this? (hint: you only need two of the 3 numbers given! ) power = work / time 249 watts 25 watts 2075 watts 27.7 watts

He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will