The electric potential at a certain point is given by v(x, y, z)= (-4.22 v/m4)x2y2 + (2.60 v/m6)xy4z - (2.11 v/m4) z3y. determine the unit vector form, e = [(+/-abc v/m)i + (+/-def v/m)j + (+/-mp. n v/m)k], of the electric field e at the point (-1.7 m, 2.8 m, -1.5 m) to give that potential. give the x component of electric field in the form x component = "+/-abcd" v/m. give the y component of the electric field in the previous problem. use the format "+/-cdef" v/m for your answer. give the z component of the electric field in problem 9a. use the format "+/-def" v/m.

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

How are series and parallel circuits simililar? both have multiple paths for electrons to travel. both require resistors in their circuits. both require a switch to complete the circuit. both have at least one path for electrons to travel.