namenerk
2021-12-19
Answered

Gas Y effuses half as fast as O2. What is the molar mass of gas Y?

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A stunt man whose mass is 70 kg swings from the end ofa 4.0 m long rope along thearc of a vertical circle. Assuming that he starts from rest whenthe rope is horizontal, find the tensions in the rope that are required to make him follow his circular path at each of the following points.

(a) at the beginning of his motion N

(b) at a height of 1.5 m above the bottom of the circular arc N

(c) at the bottom of the arc N

(a) at the beginning of his motion N

(b) at a height of 1.5 m above the bottom of the circular arc N

(c) at the bottom of the arc N

asked 2021-08-17

Jones figures that the total number of thousands of miles that a used auto can be driven before it would need to be junked is an exponential random variable with parameter

Smith has a used car that he claims has been driven only 10,000 miles.

If Jones purchases the car, what is the probability that she would get at least 20,000 additional miles out of it?

Repeat under the assumption that the lifetime mileage of the car is not exponentially distributed but rather is (in thousands of miles) uniformly distributed over (0, 40).

asked 2021-12-06

Graph the quadratic function

Then determine (e) the largest open interval of the domain over which the function is increasing and (f) the largest open interval over which the function is decreasing.

(a) The vertex is (-1,-2).

(Type an ordered pair.)

Use the graphing tool to graph the function.

(b) The axis is

(Type an equation.)

asked 2021-07-13

To find: congruent criteria used to prove that the triangles are congruent.

Given information:

asked 2021-02-25

PROBLEMS: (Show 5 step process) 1. Independent random samples taken on two university campuses revealed the following information concerning the average amount of money spent on textbooks during the fall semester. University A University B Sample Size 50 40 Average Purchase $280 $250 Standard Deviation $20 $23 At = .05, test to determine if, on the average, students at University A spend more on textbooks then the students at University B.