Physics, 25.10.2019 23:43 gatorgirl10152
A1.2-kg rod that has a length of 1.0 m and a resistance of 5.0 o slides with constant speed down a pair of frictionless vertical conducting rails that are joined at the bottom. other than the rod, the rest of the circuit is resistanceless. a uniform magnetic field of magnitude 3.0 t is perpendicular to the plane formed by the rod and the rails as shown. determine the speed of the rod.
a)0.38 m/s
b)0.90 m/s
c)2.6 m/s
d)6.5 m/s
e) 8.7 m/s
Answers: 3
Physics, 21.06.2019 15:00
An ambulance emits a frequency of 450 hz from its siren. what frequency is heard by a man as the ambulance moves toward him? less than 450 hz more than 450 hz 450 hz 0 hz
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Physics, 22.06.2019 09:30
1. how to locate the image in converging(concave) mirror and diverging (convex) mirror with salt. 2. how to locate the image in a converging (convex) lens and diverging (concave) lens with salt.
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Physics, 22.06.2019 16:50
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
A1.2-kg rod that has a length of 1.0 m and a resistance of 5.0 o slides with constant speed down a p...
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