<h2>♨ANSWER♥</h2>
length of V-50 = 49mm
length of V-1 = 49/50mm
 = 0.98mm
so,
minor measurement = (M-1) - (V-1)
 = 1mm -0.98mm
 = 0.02mm
☆ Therefore,
 The minor measurement of the vernier scale is 0.02mm.
<u>☆</u><u>.</u><u>.</u><u>.</u><u>hope this helps</u><u>.</u><u>.</u><u>.</u><u>☆</u>
_♡_<em>mashi</em>_♡_
 
        
        
        
Answer with Explanation:
We are given that mass of block=0.0600 kg
Initial speed of block=0.63 m/s
Distance of block  from the hole when the block is revolved=0.47 m
Final speed=3.29 m/s
Distance of block  from the hole when the block is revolved=
a.We have to find the tension in the cord in the original situation when the block has speed =

Because tension is equal to centripetal force
Substitute the values 

b.

c.Work don=Final K.E-Initial K.E



 
        
                    
             
        
        
        
The atomic number is the simply the number of protons in the atom. So in the first row with atomic number 2, the number of protons is 2.
If the atom has no charge, which I think you can assume for all of these, the number of electrons is equal to the number of protons. So the number of electrons is also 2.
The number of neutrons (which are the particles with no charge in the nucleus) is simply the mass number minus the atomic number i.e. 4 - 2 = 2.
The isotopic symbol is the symbol which is found on the periodic table of elements. There are 2 numbers associated which each element on the table. The larger is the mass number and the smaller is the atomic number. The atomic number or number of protons is what identifies the element. Looking at the periodic table ( https://sciencenotes.org/wp-content/uploads/2015/01/PeriodicTableOfTheElementsBW.pdf or https://simple.wikipedia.org/wiki/Periodic_table_(big) ), it can be seen that the element on the first row above with an atomic number of 2 is Helium with a symbol He. The number that is included with the name is simply the mass number which is 4 in this case, which tells us that this type of helium has 2 neutrons. 
Another type (or isotope) of helium is Helium-3 which has one neutron. 
Try the next row and post back if you have trouble with it
 
        
             
        
        
        
Answer:
The helicopter was 1103.63 meters high when the package was dropped.
Explanation:
We consider positive speed as a downward movement
y: height (m)
t: time (s)
v₀: initial speed (m/s)
Δy = v₀t +  gt²
gt²
Δy= 15 ×15 s +
×15 s +  ×9.81
×9.81 ×(15 s)²
×(15 s)²
Δy= 1103.63 m