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During paddling of a bicycle,the force of friction exerted by the ground on the two wheels is?Ans) Since the rear wheel rotates by itself (we only paddle to rotate the fron wheel), the friction acts in backward direction which provides torque for the required rotation.But friction acts forward on front wheel as friction acts opp. to the direction of sliding or opposes the relative motion.
(a) Can you explain the limitations of 1 s t law of thermodynamics ? Describe thermal energy Reservoir, heat sink and heat source. (b) Give the basic concept of Heat Engine, Ref
Classification Two categories of plastics are identified. Those are: thermosetting plastics and thermoplastics. Plastics generally cannot stand higher temperatures. They becom
In a steam jet refrigeration system, the ejector extracts 3.3 m3/s of saturated water vapor at a temperature of 7.2 °C from the flash chamber. The return water from the cooling coi
Determine the velocity in a Moving Frame of Reference: As illustrated in Figure, a ship A moves with a velocity v A = 40 km/hour whereas ship B moves with a velocity of v B
Explain Numerical Control (N.C) Procedure a) Process Planning: - This is listing of the sequence of operation to be performed during manufacturing of a part. This as well lists
ARC WELDING POWER SOURCES CLASSIFICATION:OUTPUT CHARACTERSTICS The output characteristic of welding power source is a funct ional relationship between output voltage and load
Explain about the eccentrically loaded footings. ECCENTRICALLY LOADED FOOTINGS When footings have overturning moments and axial loads, the base pressure under the footing wi
Q. Hazardous and Safe Areas in plant layout? Plants implicitly involve identifiable hazards in respect to the environment, location and presence of potentially explosive materi
Consider a car of mass m1 is towing a trailer of mass m2 through a tow bar of stiffness k. Drag forces proportional to the car velocity (b1 v1) and the trailer velocity (b2 v2) a
Thin wall tube has diameter of 60mm. The end of it will be compressed to square form. Calculate how many percents torsion strength will becomne lower at the end of tube?
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