ou are to provide an assessment of potential energy production from a local farm which is considering an anaerobic digester to treat its wastes. The farm has 35 cattles, 225 pigs, and 1035 hens. Assuming 1 m3 of biogas has 20 MJ energy value and would give 1.7 kWh of electricity, estimate the annual energy value and electricity production from this farm using the information given

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

Two polarizers are oriented at 24.0∘ to one another. light polarized at a 12.0-degree angle to each polarizer passes through both. what is the transmitted intensity (%)?

What is the most useful equation for electric power?