You measure the weights of a random sample of twenty-five male runners. the sample mean is 60 kilograms (kg). suppose that the mean weights of male runners follow a normal distribution with unknown mean µ and standard deviation σ = 5 kg. the 95% confidence interval for µ is

Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25? , b) el tiempo que el balón permanece en el aire.

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?