Acircular cylinder with a radius r of 1 cm and a height h of 2 cm carries a charge density of ρv = h r2 sin φ µc/cm3 (r is a point on the z-axis, φ is an azimuthal angle). the cylinder is then placed on the xy plane with its axis the same as the z-axis. find the electric field intensity e and the electric potential v on point a on z-axis 2 cm from the top of the cylinder.

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s. a. determine jay’s mass. b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

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