Physics, 07.11.2019 05:31, kprincess16r
Aroad race is taking place along the track shown in the figure (figure 1). all of the cars are moving at constant speeds. the car at point f is traveling along a straight section of the track, whereas all the other cars are moving along curved segments of the track.
assuming that all cars have equal speeds, which car has the acceleration of the greatest magnitude, and which one has the acceleration of the least magnitude?
give your answer as "x, y" where x is the car with the greatest magnitude of acceleration and y is the car with the least magnitude of acceleration.
hint 1. how to approach the problem opened hint recall that the magnitude of the acceleration of an object that moves at constant speed along a curved path is inversely proportional to the radius of curvature of the path.
Answers: 2
Physics, 22.06.2019 13:10, kelonmazon2492
The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.
Answers: 3
Physics, 22.06.2019 16:20, jmackenzie7
How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit
Answers: 2
Physics, 22.06.2019 16:50, lizzepacheco
Acommercial refrigerator with refrigerant-134a as the working fluid is used to keep the refrigerated space at -35°c by rejecting waste heat to cooling water that enters the condenser at 18°c at a rate of 0.25 kg/s and leaves at 26°c. the refrigerant enters the condenser at 1.2 mpa and 50°c. if the compressor consumes 3.3 kw of power, determine (a) the mass flow rate of the refrigerant, (b) the refrigeration load, (c) the cop, and (d) the minimum power input to the compressor for the same refrigeration load.
Answers: 2
Aroad race is taking place along the track shown in the figure (figure 1). all of the cars are movin...
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