The force of friction between the block and surface will decrease.
Answer:
Explanation:
the equation you use here is m=fa or mass=force x acceleration
you plug in the 13.5 N as the force, 6.5 m/s^2 as the acceleration, and do the math.
13.5 x 6.5
That would equal 87.75 which would be your answer.
<h2>Given :-</h2>
- Cost of school exercise book was Rs. 10
- Now , she had to pay Rs. 12 for it .
<h2>To Find :-</h2>
- The increase percentage of price of that book .
<h2>Solution :-</h2>


<u>According</u><u> </u><u>to</u><u> </u><u>the question</u><u>, </u>
→ Increase of Price = ( Rs. 12 - Rs. 10 )
⇒ Rs. 2
→ Initial Value = Rs. 10
Let's solve by putting the values in the formula !

⇝2×10%
⇝20%
∴ The percent of increase in price of that school exercise book is 20 %
Solution:
We are given:
Number of male fishes surveyed by Elena in a river = 350
Number of male fishes with eggs growing inside them = 150
Therefore the number of male fishes without eggs = 350 - 150 = 200
Now the ratio of male fish with egg cells to male fish without egg cells in the river is:

Therefore, the ratio of male fish with egg cells to male fish without egg cells in the river is 