3 pts A table saw-powered by an electric motor-was measured to consume 0.2 kilowatt hours (kWh)...
How much energy is dissipated as thermal energy due to friction and other inefficiencies in the system when you have 5 kWh of electricity running for 45 minutes, as well as 200 kJ of mechanical work being produced.
A lightweight electric car is powered by a series combination of ten 12.0-V batteries, each having negligible internal resistance. Each battery can deliver a charge of 154 A · h before needing to be recharged. At a speed of 82 km/h, the average frictional force due to air drag and rolling friction is 1.34 kN. (a) What must be the minimum power delivered by the electric motor if the car is to travel at a speed of 82 km/h? ________kW...
Hi, Can you please solve these problems. For the information below to answer Questions 1-5. An electronic flashgun has a 2500 μF electrolytic capacitor charged to 300 V and a current-limiting 10 kΩ resistor and. If the lamp resistance is 10 Ω: Question 1 Find the peak charging current [2] 1) 30 A 2) 15 mA 3) 30 mA 4) 20 A Question 2 Find the time required for the capacitor to fully charge (Hint: an electronic flash unit is...
1. 1. The primary energy savings in tep (1 MWh -0.086 tep) and diesel, which involves the direct use of heat from a geothermal resource to cover a heat demand of 100 kW for 3,500 h / year, assuming that this demand will be covered with diesel boiler of average yield 0.8 (for diesel 1.12 tep/ton gas oil), they are: a) 30.1 tep/year, 26.9 ton/year b) 37.6 tep/year, 33.6 ton/year c)41.2 tep/year, 36.8 ton /year 1. 2. A hydraulic pump...
QUESTION 3 The textbook discusses 3 types of environmental degradation affecting the environment. Below, please match each type of degradation discussed to the type of consequence suggested in the textbook. (Answer based on what the book says, not based on your personal opinion.) Air pollution A., is killinig humans 8,..isklin the earth Land poliution Water pollution address chiticar Watel Air Pollution Air pollution occurs when the release of materials to the atmosphere cannot be safelv disposed of by natural processes....