3.In a car factory, there are 8 assembly lines. Each assembly lines manufactures cars at the same speed. If the factory produces 48 cars in a day, how many cars does each assembly line make each day? How many sig figs should your answer be in? * Rounding to proper sig figs.
Remember when multiplying or dividing to round to the least number of sig figs.
A.1
B.2
C.3
D.4
E. none of the above

If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 380j of energy to the room?

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.

An electron in an x-ray machine is accelerated through a potential difference of 1.00 × 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?