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Temperature of a burning candle is 100degree celcius.when we move our fingerthrough it our finger is not burnt or injured.what is the reason? 2.a human's healthy temperature is 37degree celcius.surroundings temperature is 25 degreecelcius. why human's temperature do not become equal to surroundings? 3.assume that you are in a cold country.you kept your body warm by wearing woolen clothes.how does woolen cloth help your body to be warm?
a blue car pulls away from a red stop-light just after it has turned green with a constant acceleration of 0.4 ms2. a
A force vector has a magnitude of 595 newtons and points at an angle 39o of below the positive x axis. What is (a) x scalar component and (b) y scalar component of the vector.
A spinning top spinning at 16rad/s takes 88.9s to come to a complete stop. Find the angular acceleration of the top
An ideal monatomic gas is contained in a vessel of constant volume 0.340 m3. The initial temperature and pressure of the gas are 300 K and 5.00 atm, Find the specific heat of the gas
At first the spacecraft and the asteroid are at rest, 450m apart. How much time does it take for the ship and the asteroid to meet?
A metal disk with a radius of 10cm and a mass of 6 kg has a hole in the center and is nailed to a wooden post. What is the moment of inertia of the disk
A football kicker can give the ball an initial speed of 27 m/s. He is 53 m from the goalpost which has a crossbar 3.09 m high. What is the smallest angle of elevation that he can kick the football and score a field goal
A nozzle is now attached to the end of the hose. If the nozzle diameter is one-third the diameter of the hose, what is the speed of the water leaving the nozzle
A current balance is set up so that a mass of 28.0 mg on the wirerestores balance to the system when a current of unknown magnitude is sent through both wires. the wires are 26.5 cm long and have acenter to center seperation of .575 cm. What is th..
A magnetic field is perpendicular to the plane of a single-turn circular coil. The magnitude of the field is changing, so that an emf of 0.87 V and a current of 3.2 A are induced in the coil. The wire is the re-formed into a single-turn square coil, ..
A cable lifts a 1110 kilogram elevator at a fix velocity for a distance of 39 meter. Find the work done by the tension in the cable
Two children are playing on a balanced seesaw. One child with a mass of 48 kg sits 1.4 m from the center. Where on the other side must the second child sit
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