Which two of the following involve the same energy transfer. Assume that the same substance and the same mass is involved in all four processes. a. melting
b. evaporation
c. sublimation
d. condensation

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value

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).

Ajoint produces movement when its angle decreases. which type of movement is it?