Apickup truck is traveling down the highway at a steady speed of 30.1 m/s. the truck has a drag coefficient of 0.45 and a cross-sectional area of the truck is 3.3 m2. assume the density of the air is 1.2 kg/m 3. how much energy does the truck lose to air resistance per hour? give your answer in units of mj (megajoules).
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Physics, 21.06.2019 16:20
Acube has a volume of 2011 cubic inches. what is the angle measure between a side of a cube and its interior diagonal?
Answers: 1
Physics, 22.06.2019 07:30
Carbon-14 is a radioactive element that undergoes beta decay. which force is responsible for allowing carbon-14 to become stable? electromagnetic gravitational weak nuclear strong nuclear
Answers: 2
Physics, 22.06.2019 14:20
4r-134a enters the condenser of a residential heat pump at 800 kpa and 50°c at a rate of 0.022 kg/s and leaves at 750 kpa subcooled by 3°c. the refrigerant enters the compressor at 200 kpa superheated by 4°c determine (a) the isentropic efficiency of the compressor, (b) the rate of heat supplied to the heated room, and (c) the cop of the heat pump. also, determine (d) the cop and rate of heat supplied to the heated room if this heat pump operated on the ideal vapor-compression cycle between the pressure limits of 200 and 800 kpa. (0.757, 4.37 kw, 5.12, 6.18, 3.91 kw)
Answers: 3
Physics, 22.06.2019 16:50
Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.
Answers: 3
Apickup truck is traveling down the highway at a steady speed of 30.1 m/s. the truck has a drag coef...
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