The mass of mercury is 3.301 x 10^23 kg and its orbital radius is an average of 5.790 x 10^10 m. calculate its linear momentum. (the orbital period of mercury is 0.2409 years. enter your answer in kg * m/s.)

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.

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).

Aball horizontally thrown from a cliff at 8m/s