The answer is A because An Indicator" changes color when it comes in contact with an acid or a base
An indicator could be anything like:
1) Litmus paper
2) Bromothymol blue
3) Phenolphthalein
d. all of these
look at the picture to know from where we get this law with application on it
Answer:
When the velocity is set to a constant value, the displacement increases with time but the acceleration remains zero
Explanation:
plato
Answer:
86.75 N
Explanation:
f = 440 Hz
l = 32 cm = 0.32 m
m = 0.35 g = 0.35 x 10^-3 kg
μ = m / l = 0.35 x 10^-3 / 0.32 = 1.094 x 10^-3 kg/m
The formula for the fundamental frequency is given by
![f =\frac{1}{2l}\sqrt{\frac{T}{\mu }}](https://tex.z-dn.net/?f=f%20%3D%5Cfrac%7B1%7D%7B2l%7D%5Csqrt%7B%5Cfrac%7BT%7D%7B%5Cmu%20%7D%7D)
Where, T be the tension
![440 =\frac{1}{2\times 0.32}\sqrt{\frac{T}{1.094\times 10^{-3} }}](https://tex.z-dn.net/?f=440%20%3D%5Cfrac%7B1%7D%7B2%5Ctimes%200.32%7D%5Csqrt%7B%5Cfrac%7BT%7D%7B1.094%5Ctimes%2010%5E%7B-3%7D%20%7D%7D)
![281.6 = \sqrt{\frac{T}{1.094\times 10^{-3} }}](https://tex.z-dn.net/?f=281.6%20%3D%20%5Csqrt%7B%5Cfrac%7BT%7D%7B1.094%5Ctimes%2010%5E%7B-3%7D%20%7D%7D)
T = 86.75 N
Thus, the tension in the string is 86.75 N.
Answer1. :(20/25)*200/*25 2. Increase the radius or apply the force perpendicular to the wrench
Explanation:torque =force*distance*sine of the angle between applied force and axis of wrench