Suppose the mass of a fully loaded module in which astronauts take off from the moon is 1.0 x 10^4 kg. the thrust of its engines is 3.0 x 10^4n. calculate the magnitude of acceleration in a vertical takeoff from the moon with two significant figures. (a) 6.8 m/s^2 (b) 4.7 m/s^2 (c) 1.7 m/s^2 (d) 1.3 m/s^2

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).

The amount of potential energy possessed by an elevated object is equal to what?