Pendulum L = 100.0cm, find the time for 20 oscillations. Repeat the experiment for L = 80.0, 60.0, 50.0,40.0 and 30.0. Question
1) Plot a graph of L against T^2 and determine the slope.
2)plot a graph of log L against log T and measure the slope.
3) make L the subject of the
formula in T = 2π√L/g when g/4π^2 is the shape of graph in (L),find (g).
4)state 3 precautions taken in the experiment.

Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?

Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60∘ with each other as shown in the figure. what is the intensity of the transmitted beam, st?

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1