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Define about the Heat Loss?
An immersion heater of power J=500 W can be used to heat water in a bowl. After 2 minutes the temperature enhance from T1=85oC to T2=90°C. The heater is after that switched off for an additional minute and the temperature drops ΔT = 1°C. By estimation the mass of the water in the bowl and The thermal capacity of water c= 4.2 • 103j/kg K.
Quantum theory of gravity
a person holds of hay over his head for 30 min and gets tired . has he done some wirk or not? justify your answer
O rdinary glass is a good insulator but is too brittle to be used for anything but scientific instrument part s, accumulator container and for certain other special purposes. It is
what are some advantages of the thermo-electric thermometer over the mercury in glass thermometer?
A radioactive substance has a half life of 1 min. If one nuclei decays now , when will be next decay????
Making an observation nest for ants An observation nest for the study of the life story of ants can simply be made as follows. Make a wooden U from three 30 cm lengths of w
a sphere is at rest on a wall at a angle of 3,4(slpoe) to the left. it also rest against a vertical wall. we are to find the magnitude of the resultant force at the vertical wall.
find the angle between two vectors if thier resultant is equal to either of them
The least count of the stopwatch is 0.1 second because in stopwatch we can measure milliseconds also.
give some examples of like and unlike parallel forces
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