Answer:
The two forces that affect on the pendulum are the force of gravity,
Explanation:
- ⇒ There is the force of gravity that acts downward upon the bob. It results from the Earth's mass attracting the mass of the bob. And there is a tension force acting upward and towards the pivot point of the pendulum.
Therefore, I hope this helps!
Answered by: 
Answer:
the correct ans is D.
Explanation:
as in case of uniform circular motion ,tension provides the necessary centripetal force ..and is given by :-
F = mv2/r
now if mass , speed and radius are doubled then putting the values in the formua we get ;
F' = (2m)(2v)2/ 2r
F' = 4(mv2/r)
F' = 4F
So, the correct option would be D.
Given data
mass of solute (m) = 1.2 g ,
Volume of solution = 1.5 L ,
= 1.5 × 1000 mL
= 1500 mL ,
What is the concentration of solution = ?
concentration = (mass of solute) ÷ (100 mL of solution)
= (1.2) ÷ (1500 mL of solution)
<em> Note: </em><em> remember to divide both numerator and denominator by 15 to get concentration per 100 ml</em>
<em> Therefore concentration = 0.1 /100 mL ;</em>
<em>The concentration of sugar in a tea is 0.1/100 mL</em>
Hello Lauren, The answer to this question is D:Plate boundaries.
Have a wonderful day:).
