The wavelength, λ tells us how long one segment of the wave is. The frequency, f tells us how often one whole segment goes by. So the speed is the wavelength (in meters), times the frequency (in Hz)
v=λ f=1000m/s
Answer:
Explanation:
Given
Sphere of Radius R
Suppose mass of block is m
At any instant \theta Normal reaction(N) and weight(mg) is acting such that
, where v is velocity of block at any angle \theta
When block is just about to leave then N=0
therefore

-------------------1
Also by conserving Energy we get
Potential Energy=kinetic Energy of block

here h=vertical distance traveled by block
From diagram



-----------------2
From 1 and 2



Thus from this value of h is



A period is a form of grammer , and it is used to end a sentence