A wire of resistance 9.0 is connected to a battery whose emf is 3.0 V and whose internal resistance is 1.0 .
(a) How much energy is transferred from chemical to electrical form in 4.0 min?
(b) How much energy appears in the wire as thermal energy in that time?
answer to a= 216 (that's...
In Millikan's experiment, an oil drop of radius 0.9493 µm and density 0.876 g/cm3 is suspended in chamber C (Figure 22-14) when a downward-pointing electric field of 1.92 105 N/C is applied. Find the charge on the drop, in terms of e. (Include the sign.)
So, to do this problem, i know that...
Two equally charged particles are held 3.8 10-3 m apart and then released from rest. The initial acceleration of the first particle is observed to be 5.0 m/s2 and that of the second to be 9.0 m/s2. The mass of the first particle is 6.3 10-7 kg.
(a) What is the mass of the second particle...
Two tiny, spherical water drops, with identical charges of -1.04 10-16 C, have a center-to-center separation of 1.5 cm.
(a) What is the magnitude of the electrostatic force acting between them?
(b) How many excess electrons are on each drop, giving it its charge imbalance?
Ok so, i...