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A power boat of mass 500 kg is cruising at a constant speed of 8.9 m/s. The propeller provides a drive force of 765 N. The driver of the boat shuts off the engine, and the boat coasts to a halt. Assume -- contrary to fact -- that the resistive force due to the water is constant, independent of the boat's speed.
(a) How far does the boat coast? (b) How much time does it take for the boat to come to rest after the engine is turned off?
Calculate the current needed in a 240 mm length of conductor of a d.c. motor when the conductor is situated at right-angles to the magnetic field of flux density 1.25T, if a force
Production of a magnet: Magnets can be produced in a variety of ways, generally the method used is determined by the type of magnet required. Using the stroke method
Working of a galbanometer?
Universal age paradox Two most straightforward methods of computing the age of the Universe through redshift measurements, and stellar evolution yield incompatible results. Re
IN SUCCESSIVE DISINTEGRATION WHY DOUGHTER ELEMENT NOT DECAY WHEN IT FORM BUT DECAY AFTER A FIEW TIME FROM ITS FORMATION
Show that the Nusselt number for a sphere in a quiescent fluid is 2. Hint: Write the thermal resistance for the outer surface of the sphere in terms as both conductive and conve
Production of electricity by heat: The Seebeck effect - the thermocouple . When two different metals are brought into contact with one another, it is found that electrons can
Q. Write any three applications of laser in industry. Industrial applications (i) The laser beam is utilized to drill extremely fine holes in diamonds hard sheets etc.
types of equilibriam
Given the following image, 1 2 1 1 2 0 0 1 5 1 0 1
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