Un cilindro muy largo, macizo, de 5 cm de radio está uniformemente cargado en todo su volumen con una densidad de carga de 4*10-6 C/m3. Hallar el campo eléctrico a una distancia r=10 cm.

Aball tossed vertically upward from the ground next to a building passes the bottom of a window 1.8 s after being tossed and passes the top of the window 0.20 s later. the window is 2.0 m high from top to bottom. what was the ball's initial velocity? the unit vector j^ is directed upward. how far is the bottom of the window from the launch position? how high does the ball rise above the launch position?

Lin yao looks at the back of a spoon. how should she describe her reflection? upside down and smaller upside down and larger right-side up and smaller right-side up and larger

What is the most useful equation for electric power?