An amplifier has a 50 watt output and a 5 watt input. what is the gain in decibels for this amplifier, rounded to the nearest decibel?

What does it mean to say an object is electrically neutral

What are variables and why are they important?

The law of inertia applies to a. objects at rest. b. moving objects. c. both moving and nonmoving objects

a man has five 60w bulb and a 240w water heater in his apartment. if the bulb and water heater are switched on for four hours daily and the cost of electricity is $1.50 per kwh. calculate his bill for 30days.

Which type of circuit is a continuous loop that allows the flow of current along its intended path? A) open B) inverted C) closed D) short

What is Precambrian time?

Calculate the kinetic energy in joules of a 1500 kg automobile moving at 19 m/s

What is a fault? A. the name for 2 opposing forces B. a type of crust that moves under heavier crust C. A crack in earths crust where movement occurs D. A volcanic region where new material is being created

18. Which does not affect the strength of an electromagnet? A the current in the solenoid B the temperature of the coil OC the number of loops in the coil D the type of ferromagnetic core

What causes the electric charges to flow from one end of the battery to the other? a balance in electric potential a balance in resistance a difference in electric potential a difference in resistance