The way an element is shown in the periodic table is called the element's symbol. In the case of manganese, it is Mn. Other information shown alongside the element's symbol is the atomic mass, which for manganese is 55, and the atomic number of the element, which for manganese is 25.
Answer:
<h3>(A) The width

m</h3><h3>(B) The new width is

m</h3>
Explanation:
Given :
Focal length 
Maximum aperture
Wavelength
m
(A)
From rayleigh criterion,


rad
From angle formula,

Where
12 m ( given in example )
m

m
(B)
We know that
is proportional to the
and inversely proportional to the 
so we write the new width, here
is 5.5 times larger than above case

m
apple, earth. earth more massive than moon. astronauts showed this - armstrong etc
Answer:
17304 J
Explanation:
Complete statement of the question is :
In the winter activity of tubing, riders slide down snow covered slopes while sitting on large inflated rubber tubes. To get to the top of the slope, a rider and his tube, with a total mass of 84 kg , are pulled at a constant speed by a tow rope that maintains a constant tension of 350 N .
Part A
How much thermal energy is created in the slope and the tube during the ascent of a 30-m-high, 120-m-long slope?
Solution :
= tension force in the tow rope = 350 N
= length of the incline surface = 120 m
= work done by tension force = ?
The tension force acts parallel to incline surface, hence work done by tension force is given as

= height gained by the rider = 30 m
= total mass of rider and tube = 84 kg
Potential energy gained is given as

= Thermal energy created
Using conservation of energy
