A lamp is plugged into a 110 Volt electrical outlet. There is a 9 Watt LED bulb in the lamp. What is the current in the bulb? What is the resistance of the bulb?

How many seconds does it take a pebble released from rest off a bridge to fall 29.4 m ? what is the pebble's speed when it has fallen 29.4 m ?

What is the electric force acting between two charges of -0.0045 c and -0.0025 c that are 0.0060 m apart? use fe=kq1q2/r^2 and k = 9.00 x 10^9 n*m^2/c^2 a. 1.7 x 10^7 n b. -1.7 x 10^7 n c. -2.8 x 10^9 n d. 2.8 x 10^9 n

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?