Suppose the electric company charges 10 fils per kw h. how much does it cost to use a 125 watt lamp 4 hours a day for 30 days? a) aed 1.20 b) aed i.80 c) aed 7.20 d) none of these e) aed 1.50

Hydrogen and helium are both members of?

The period of a pendulum varies directly as the square root of the length of the pendulum and inversely as the square root of the acceleration due to gravity. find the period when the length is 144 cm and the acceleration due to gravity is 980 cm per second squared, if the period is 7pi seconds when the length is 289 cm and the acceleration due to gravity is 980 cm per second squared.

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?