Uniform velocity is the area of time vs distance graph
Potential Energy: It is the energy that is associated with the relative position of a body within a force field.
Kinetic Energy: It is the energy that a body contains due to its state of movement.
Thermal Energy: is associated with the sum of the microscopic kinetic and potential energies of the system.
Total Energy: it is the sum of all the energies that a body contains.
Answer:
Speed of light in the glass
Explanation:
In this question we have given
angle of polaization,p=
we have to find the speed of light in the glass,v=?
We know that, refractive index of glass can be determined by following formula
................(1)
here,
c- speed of light in air
v-speed of light in glass
we also know according to brewester's law refrective index of glass is given as
n=tanp......................(2)
here p-angle of polarization
From equation (1) and equation (2)
we got
put value of c= and p= in equation 3
we got
Answer:
The main reason is that very young calves are more noticeable to predators when mixed with older calves from the previous year
Explanation:
Answer:
Number 6:
• From the formula of force:
• But we need to get the acceleration, from the first newtons equation of motion
• v is the final velocity, but v is zero because the bullet came to rest.
• u is the initial velocity, u = 350 m/s
• a is the acceleration that we need
• t is the time, t = 0.0018 seconds.
» let's now substitute:
[ negative shows retârdation or deceleration or decrease in speed ]
• Therefore, let's find the force:
mass = 6g = (6/1000) kg = 0.006 kg