Question 15 There is a distance of 3.0 x10-1 meters between two metalic spheres. Each sphere has a charge of +2.0 x10-6 coulombs What is the magnitude of the electrostatic force on the two spheres?
A) 1.2 x 10-12 N
B) 4.4 x 10-11 N
C) 1.2 x 10-1N
D) 4.0 x10-11

Current 1 of 8.4 a runs for 240 seconds and then stops. current 2 is 10.5 a. how long does current 2 have to un to deliver the same amount of charge as current 1? 88.28 192 s 2016 s 21,000 s

What is a good example of instantaneous speed

Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.