Answer:
None, egg cells don't have chromosomes. No, sex cells do have chromosomes. Meiosis reduces chromosome number so that sex cells (eggs and sperm) have a half set of chromosomes–one homolog of each pair. This is the haploid number.
 
        
             
        
        
        
Answer:
a)
b)
c)
d)
e)
Explanation:
Given that:
- initial speed of turntable,  
- full speed of rotation,  
- time taken to reach full speed from rest,  
- final speed after the change,   
- no. of revolutions made to reach the new final speed,   
(a)
∵ 1 rev = 2π radians
∴ angular speed ω:

where N = angular speed in rpm.
putting the respective values from case 1 we've


(c)
using the equation of motion:

here α is the angular acceleration



(b)
using the equation of motion:





(d)
using equation of motion:



(e)
using the equation of motion:



 
        
             
        
        
        
Answer : 6.022• 10^23 atoms of potassium
        
             
        
        
        
<h3>Hello There!!</h3>
<h3><u>Given</u>,</h3>
Force(F) = 150N
Mass(m) = 90kg
<h3><u>To </u><u>Find,</u></h3>
Acceleration(a) = ?
<h3><u>We know,</u></h3>
F= m×a


<h3>Hope this helps</h3>
 
        
        
        
This is an interesting (read tricky!) variation of Rydberg Eqn calculation. 
Rydberg Eqn: 1/λ = R [1/n1^2 - 1/n2^2] 
Where λ is the wavelength of the light; 1282.17 nm = 1282.17×10^-9 m 
R is the Rydberg constant: R = 1.09737×10^7 m-1 
n2 = 5 (emission) 
Hence 1/(1282.17 ×10^-9) = 1.09737× 10^7 [1/n1^2 – 1/25^2] 
Some rearranging and collecting up terms: 
1 = (1282.17 ×10^-9) (1.09737× 10^7)[1/n2 -1/25] 
1= 14.07[1/n^2 – 1/25] 
1 =14.07/n^2 – (14.07/25) 
14.07n^2 = 1 + 0.5628 
n = √(14.07/1.5628) = 3