Please this is for a test. Part 1 1) Determine the volume of a cylinder from the following measurements. Identify the instrument

2) In the simple pendulum lab, the following graphic is obtained:
A) Determine g
B) Calculate the error percentage
C) Explain why the results are obtained

Entonces calcule el área de un cilindro que necesitamos para obtener el radio y la altura. El instrumento es la regla. Sin embargo, no sé qué es g. El porcentaje de error es 0-1% si se hace correctamente. Los resultados se obtienen porque utilizamos una fórmula para calcular cuál es el volumen. La fórmula está probada y se puede derivar.

powerful computers now, not then

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me