What is the probability that a waitress will refuse to serve alcoholic beverages to only 2 minors if she randomly selects the I.D.’s of 6 students from among 9 students of which 4 are not of legal age? 

The length of a telephone conversation is 2.5 minutes on average. What is the probability that a conversation lasts between 3 and 5 minutes? 

The probabilities that three men hit a target are 1/6, 1/4, and 1/3, respectively. Each shoot once at the target. 

FYrh97O3 Calculate the reactions in Newton. 

Ten stones are placed in a straight line on the ground, at intervals of two feet. 

DNfS2040 Situation. A square timber beam used as a railroad tie is supported by a uniformly distributed loads and carries two uniformly distributed loads each totaling 48 kN as shown. 

DNfS2041 Calculate the uniform reaction of the beam in kN/m. 

DNfS2043 Determine the size of the section of the beam if the maximum stress is limited to 8 MPa. 

Albert and Bryan can do a certain task if both work together 3 days and Albert then works alone 1 day. 

Download: Unit Exam 

A mechanical device which when installed in the pipe flow system will add energy (output) to the system is known as: 
