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Making a sun-dial
To withstand all weather, a sun-dial should be form of metal or painted wood. A cardboard model can be formed for easy experiments.
The gnomon which casts the shadow is a right-angled triangle with base angle equivalent to the latitude of the place at which it is going to be used.
Energy in transmitted in space in all direction. Example : Light and sound waves propagating in space.
Give reasons for the following (i) Long distance radio broadcasts use short-wave bands. (ii) The small ozone layer on top of the stratosphere is crucial for human survival.
Using formulas, absolute addresses, and x-y plot: Supplies are dropped from an airplane to land at a certain point. The velocity of the package at release from the airplane is
Frequency:- The number of vibration done per second by an oscillation body is known its frequency. It is denoted by V. The S.I unit is Hz.
Q. Describe the parallel force? Answer:- Parallel forces are two or else more forces which perform in parallel. The forces don't have to be in the similar direction howeve
A 50 newton light fixture is supported by two guy wires as shown. Determine the tension in each wire
what is the substance produced in the liver that acts in the small intestine during digestion?
The Moon is a satellite of the Earth. The Moon takes one full revolution around the Earth in 27.3 days. Given that the mass of the Earth is 5.97 x 1024 kg, what is the avera
The rate of change of angular velocity with related to time is known as angular acceleration.
define opto isolators?
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