What is the ideal mechanical advantage of a lever if the fulcrum is placed 60 cm away from the effort arm and the load is located 25 cm away from the fulcrum?

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?