Answer:
The pendulum should be made longer by 0.194m in order to increase its period by 0.32s
Explanation:
using the formula T= 2π
rearranging the equation and making L subject of formula we have;
L=T²g/4π²
lets calculate the length when T=1.06s
g=9.8m/s² , π=3.124
L=0.279m
the new period after its increased by 0.32s = 1.06+0.32 =1.38s
increase in length = 0.473 -0.279
=0.194m
Answer:
A. Both waves carry energy and refract is the correct answer.
Explanation:
Answer:
time =20s
Explanation:
Average speed = Distance/time
time = Distance / Average speed
Where Distance = 100meters and speed =5m/s
So,
time = 100m/5m/s
time =20s
Answer:
incomplete question, resistor must be there
Explanation:
Answer:
The solvent front line should be drawn.
Explanation:
TLC is thin layer chromatography, a techniques used for the separation of substances based on their mobility on their solvents. The silver or thin metal films are used for the absorption.
The TLC plate must be removed from the chamber. After its removal the solvent front line should be drawn to known the absorbance of the material. This technique is quiet useful for the distinction of molecules.