Answer:
ΔR = 5 s
Explanation:
The absolute uncertainty or error in an expression is
ΔR = |
| ΔB + |
| ΔA
the absolute value guarantees to take the unfavorable case, that is, the maximum error.
We look for the derivatives
= 1
= -1
we substitute
ΔR = 1 ΔB + 1 ΔA
of the data
ΔB = 3 s
ΔA = 2 s
ΔR = 3 + 2
ΔR = 5 s
Perilymph of scala vestibule; endolymph of cochlear duct; perilymph of scala tympani
The correct answer among the choices provided is option C. The magnitude of the sum of 20 and 25 might be 12. Inequality triangle equation is used to determine if 12 is right.
<span>12+20 > 25 (correct)
12+25 > 20 (correct)
20+25 > 12 (correct)</span>
Answer:
a)
, b)
, c) 
Explanation:
a) The speed of the ball is determined by applying the Principle of Energy Conservation:

The speed of the ball when the string makes an angle of 12° with the vertical is:

![\frac{1}{2}\cdot m \cdot v^{2} = m\cdot g \cdot L \cdot [(1-\cos \theta_{1})-(1 -\cos \theta_{2})]](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%5Ccdot%20m%20%5Ccdot%20v%5E%7B2%7D%20%3D%20m%5Ccdot%20g%20%5Ccdot%20L%20%5Ccdot%20%5B%281-%5Ccos%20%5Ctheta_%7B1%7D%29-%281%20-%5Ccos%20%5Ctheta_%7B2%7D%29%5D)



b) The maximum speed of the ball is:



c) The angle between the string and the vertical when the speed of the ball is one-third its maximum value is obtained by proving different values of
. The solution is approximately:
