Answer: 215.15 N
Explanation:
If we draw a free body diagram of the mass we will have the following:
(1)
(2)
Where is the tension force of the rope, the mass, the acceleration due gravity and is the weight.
On the other hand, we can calculate as follows:
Where and
(3)
Now, we firstly need to find from (2):
(4)
(5)
Substituting (5) in (1):
(6)
Finally:
Answer:
overall density = 0.475 g/cm³
Conclusion: if will float on water
Explanation:
1) name the variables:
masa = m
volume = v
density = d
2) Formula
d = m / v ⇒ m = v × d ⇒ v = m / d
3) Solution
i) Calculate the mass of the cork
V cork = 85.0 cm³ ⇒ m = 85.0 cm³ × 0.240 g / cm³ = 20.4 g
ii) Mass of lead + cork
m = 20.0 g + 20.4 g = 40.4 g
iii) Volume of the cork and lead
Assume that, since the lead is inside the cork, the total volume is the same volume of the cork: 85.0 cm³ (any how the contribution of the lead to the volumen is so small that it does not affect the results).
iv) Calculate the overall density
d = 40.4 g / 85.0cm³ = 0.475 g/cm³
4) Conclusion:
Since the overall density is less than the density of water, the object will float.
This is what you call a literation oms of radiation , so the voltage drop is 1.59 O