Answer: 
Explanation: The time taken by the object to reach the ground depends up on the vertical velocity of the object.
The object horizontal velocity component only moves the object in forward direction and does not have any effect vertically
as the object is launched horizontally its initial vertical velocity is zero

the object experiences downward fall due to gravitational acceleration only since there is no air resistance
therefore a=g
the distance covered =s=h
now the kinematic equation could be used
Answer:
Each part of the spectrum has a different range of wavelengths (which correspond to frequency, color, and energy) at which you can find it.
To solve the problem it is necessary to apply the concepts related to the Centripetal Force.
By definition the centripetal force is given by

Our values are defined by

Therefore replacing in the equation we have to,


Re-arrange to find V,


Therefore the expected velocity of the spinning mass at the new radius is 1.35m/s
Answer:
Seismic attenuation describes the energy loss experienced by seismic waves as they propagate. It is controlled by the temperature, composition, melt content, and volatile content of the rocks through which the waves travel.
Explanation:
It is TRUE, Force is proportional to the product of the masses and inversely proportional to the square of the distance between them.