Glass window panes are sometimes broken by an explosion several miles away. Explain why.

Q: Choose the BEST answer to the following: An electron can be speeded up by (a) an electric field. (b)...

A: Answer: ai,e An electric field.

Q: Choose the BEST answer to the following: Compared with power input, the power output of an ideal tra...

A: A transformer is a static device used in electric circuit to increase or decrease the voltage of the...

Q: Choose the best answer to the following: The flight of a blimp best illustrates (a) Archimedes’ prin...

A: Answer: ai,e The principle of Archimedies

Q: Choose the BEST answer to the following: A hologram best illustrates (a) polarization. (b) diffracti...

A: A hologram is the recording of the light fields without a lens. For most accurate hologram laser lig...

Q: Distinguish between oscillatory and vibratory motion.

A:  Oscillatory and vibratory motion can be distinguished as, 

Q: It is claimed that two cesium clocks, if allowed to run for 100 years, free from any disturbance, ma...

A: The time interval,

Q: Read each statement below carefully and state with reasons and examples, if it is true or false ;A p...

A: a). Truean object moving in the upward direction, at the highest point the velocity will be zero but...

Q: One painter weighs 550 N and the other weighs 650 N. The scaffold weighs 190 N. The tension in one o...

A: Let the weights of the two painters be denoted as W1 and W2 and let the weight of the scaffold be de...

Q: Two waves are traveling in opposite directions on the same string. The displacements caused by the i...

A: The displacements and the phase angles caused by individual waves are given as,