Water enters a 2.00-m3 tank at a rate of 6.00 kg/s and is withdrawn at a rate of 3.00 kg/s. the tank is initially half full. (a) is this process continuous, batch, or semibatch? is it transient or steady state? (b) write a mass balance for the process (see example 4.2-1). identify the terms of the general balance equation (equation 4.2-1) present in your equation and state the reason for omitting any terms. (c) how long will the tank take to overflow?

An insurance company wants to know if the average speed at which men drive cars is higher than that of women drivers. the company took a random sample of 27 cars driven by men on a highway and found the mean speed to be 72 miles per hour with a standard deviation of 2.2 miles per hour. another sample of 18 cars driven by women on the same highway gave a mean speed of 68 miles per hour with a standard deviation of 2.5 miles per hour. assume that the speeds at which all men and all women drive cars on this highway are both approximately normally distributed with unknown and unequal population standard deviations.

What are the three ways that an object can accelerate

In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic