Answer:
Explanation:
Given
length of string 
frequency 
time taken by wave to reach at other end 
speed of wave is given by



wavelength of is given by


Answer:
To establish this relationship we must examine the potentials that these forces create. The electrical potential is described by
Ve = k q / r
The potential for strong nuclear force is
Vn (r) = - gs / 4pir exp (-mrc / h)
Where gs is the stacking constant and r the distance between the nucleons,
We can compare these potentials where the force is derived from the relationship
E = -dU / dr
F = q E
Explanation:
Final velocity=2m/s
kinetic energy lost = 96J
Explanation:
This question is an example for total inelastic collision.
For this type of collision, the equation is,
Step1: Finding the velocity
m1v1+m2v2 =(m1+m2) vf
4*8+12*0 = (4+12)v
32 = 16v
= 2m/s
Step 2:Finding the kinetic energy


Kinetic Energy before collision=
Kinetic Energy before collision= 128J


Kinetic Energy after collison= 32J
Step 3: Finding the kinetic energy lost
Kinetic Energy lost = Kinetic Energy after collision – Kinetic Energy before collision
Kinetic energy lost=128 -32
Kinetic energy lost=96J
The correct answer is (d.) mica washer. When a plug prongs are connected to the metal case of an appliance, a part that should always be placed next to the case is a mica washer. Mica washer are used as a window for any radiation detectors.
The answer is
You need to look at the top of the axis
You need to look