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A switching power converter is designed to have efficiency of 95% when the output load is 100w. The efficiency increases linearly up to 97% with 200w output (I.e efficiency is 96% at 150w and so on ) similarly the efficiency decreases to 94% at 50w output the converter will be damaged whenever the power dissipated inside it exceeds 6w if the converter is intended to operate for output loads between 20w and some maximum limit what is the upper limit of output power which can safely be supplied?
Cheetahs, the fastest of the great cats, can reach 45 miles per hour in 2.0 second starting from rest. obtain their acceleration and the distance
An 830-kilogram sports car can drive around an unbanked turn at a maximum speed of 58 m/s without slipping. Find what would be the maximum speed if no down force acted on the car
A planet has a radius of 2.69 x 10^7 m and a mass of 3.06 x 10^25 kg. It orbits its sun at 1.15 x 10^11 m (assume a circular orbit) and the period of its orbit is 6.34 x 10^7 s. The mass of its sun is 9.22 x 10^31 kg. The radius of the sun is 1.50..
You buy a plastic dart gun, and being a clever physics student you decide to do a quick calculation to find its maximum horizontal range. What is the maximum horizontal range of your gun
Automobile Airbags. The human body can survive an acceleration trauma incident (sudden stop) if the magnitude of the acceleration is less than 250 m/s2. Over what distance must the airbag stop you for you to survive the crash
a distant quasar is found to be moving away from the earth at 0.8 c. a galaxy closer to the earth, What is the recessional speed of the quasar
In a very busy off-campus eatery one chef sends a 239-g broccoli-tomato-pickle-onion-mushroom pizza sliding down the counter from left to right at 1.79 m/s. n what direction does the delectible dish move, if it moves at all
A slide loving pig slides down a certain 27° slide in four times the time it would take to slide down a frictionless 27° slide. What is the coefficient of kinetic friction between the pig and the slide
A mass of 3.2 kg sliding along a frictionless floor at 2.5 m/s strikes and compresses a spring of constant k = 290.00 N/m. The spring stops the mass. How long does the mass take to stop
A 1.08 kg mass is at the center of a uniform spherical shell of mass 1.05 1020 kg and radius 1.11 106 m. Find the resultant gravitational force on the mass
Two long current-carrying wires run parallel to each other and are separated by a distance of 3.50 centimeter. find the magnitude and direction of the force per unit length the wires exert on each other
How do continental shelves differ from continental slopes? Which are the true edges of continents? Why should a person be extra careful when buying oceanfront property? State two procedures that can reduce the hazards of landslides.
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