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What instrument is used to measure volume? Liquid volume is calculated with beakers, measuring cups, spoons, graduated cylinders, and the like. For regular objects, solid volum
Define the Newton's Law of Cooling Newton's Law of Cooling: A cup of hot chocolate has cooled from 92°C to 50°C after 12 min in a room at 22°C. a) What is the value for k (
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A submarine is travelling toward a stationary detector. If the submarine emits a 260-Hz sound that is received by the detector as a 262-Hz sound, how fast is the submarine trav
In thermodynamics term what is the meaning of the following terms? a) closed and Open systems b) Extensive and Intensive properties.
The collision between a photon and a free electron was first explained by which of the following scientists? a) Einstein b) Heisenberg c) Compton d) Bohr An
A radiation of 500nm is incident on a metal surface whose work function is 3ev.why do we not observe the phenomenon of photoelectric effect? Ans) Because the energy of radiation i
What is the effect of torque and equilibrium on taps,doors,handlebars and bicycles?
Galvanometer: 1. An electromechanical instrument, which is used to detect the presence of current in a circuit is known as galvanometer. 2. The major parts of a galvanomete
A simple inclined plane Join a spring balance to a toy car or roller skate and pull it up a slanting board (inclined plane). Note the force needed to move the car and compare i
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