Physics, 31.07.2019 03:20, tripleog12716
The combustion of 1 l of gasoline releases about 3.4×10^7j of energy. in one car's engine, about 80% of that energy is lost as heat. a. how much work is done by the engine for each liter of gasoline burned? (answer in mj/l)
b. if the car requires 5.9×10^5 j of work to travel 1 km, find the fuel efficiency in km/l.
Answers: 2
Physics, 22.06.2019 10:00, blackjack73
The rocket is fired vertically and tracked by the radar station shown. when θ reaches 66°, other corresponding measurements give the values r = 32700 ft, r¨ = 85 ft/sec2, and θ˙ = 0.019 rad/sec. calculate the magnitudes of the velocity and acceleration of the rocket at this position.
Answers: 3
Physics, 22.06.2019 12:00, jazz8224
The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?
Answers: 3
Physics, 22.06.2019 22:30, murtaghliam1
The record distance in the sport of throwing cowpats is 81.1 m. this record toss was set by steve urner of the united states in 1981. assuming the initial launch angle was 45° and neglecting air resistance, answer the following. (a) determine the initial speed of the projectile. m/s
Answers: 2
The combustion of 1 l of gasoline releases about 3.4×10^7j of energy. in one car's engine, about 80%...
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