Complete Question
A spherical wave with a wavelength of 2.0 mm is emitted from the origin. At one instant of time, the phase at r_1 = 4.0 mm is π rad. At that instant, what is the phase at r_2 = 3.5 mm ? Express your answer to two significant figures and include the appropriate units.
Answer:
The phase at the second point is 
Explanation:
From the question we are told that
The wavelength of the spherical wave is 
The first radius is 
The phase at that instant is 
The second radius is 
Generally the phase difference is mathematically represented as
this can also be expressed as
So we have that
substituting values
Explanation:
A chemical reaction is a reaction in which two or more species combine together to form a molecule with a new chemical composition.
In a chemical reaction, the reactants are written on left hand side pointing a forward arrow towards the products which are written on the right hand side.
For example, chemical reaction between hydrogen and oxygen will result in the formation of water. The reaction equation will be as follows.
Answer:
The answer is D. Here is proof . Plz mark brainliest
Explanation:
Answer:
a = 0.13m/s²
Explanation:
Given parameters:
Weight of horse trailer = 150kg
Distance covered = 250miles
Force applied on trailer = 20N
Unknown:
Acceleration of trailer = ?
Solution:
According to newton's second law of motion,"the acceleration of a body is directly proportional to the force on it and inversely proportional to the mass" .
Mathematically;
F = m x a
where f is the force
m is the mass
a is the acceleration
Input the parameters and solve;
20 = 150 x a
a = 0.13m/s²
<span>Magnetization reversal. This happens with the poles on earth, and it is called geomagnetic reversal.</span>
