The speed of the brake drum shown is controlled by a belt attached to the control bar $A D$. Knowing that the coefficient of static friction is $0.30$ and that the brake drum is rotating counterclockwise, determine the minimum value of $a$ for which the brake is not self-locking.

Match the terms with the definitions.

a. deductions

b. gross pay

c. incentive pay

d. net pay

e. overtime

f. self-employment tax

g. vested

__ The point at which employees have full rights to their retirement accounts

What information besides the number of Calories can help you make good food choices?

Fill in the missing letters, as in the following sample:

__ __ __ __ __ __v a t __ __ __ can help prevent future shortages.

An air-filled toroidal solenoid has 300 turns of wire, a mean radius of $12.0 \mathrm{~cm}$, and a cross-sectional area of $4.00 \mathrm{~cm}^2$. If the current is $5.00 \mathrm{~A}$, calculate: (b) the self-inductance of the solenoid;

Find the product. You may use grids to help.

$$3.2 \times 2.8 \times 6.1$$

The survey asked the following question: “Is it government’s responsibility to help pay for doctor and hospital bills?” The responses were HELPSICK: 1 = Government should help; 2, 3, 4, 5 = People should help themselves). Is there enough statistical evidence to infer that there are differences among the five categories of educational attainment (DEGREE: 0 = Left high school, 1 = High school, 2 = Junior college, 3 = Bachelor’s degree, 4 = Graduate)?

Here is SAS output for a study of the self-concept of a random sample of seventh-grade students. The variable SC is the score on the Piers-Harris Self-Concept Scale. The analysis was done to see if male and female students differ in mean self-concept score

$$\begin{array}{lcccc} & & \text { TTEST } & \text { PROCEDURE } \\ \text { Variable: } & \mathrm{SC} & & \\ \text { SEX } & \mathrm{N} & \text { Mean } & \text { Std Dev } & \text { Std Error } \\ \hline \text { F } & 31 & 55.516 & 12.696 & 2.280 \\ \text { M } & 47 & 57.915 & 12.265 & 1.789 \\ \text { Variances } & \mathrm{T} & \text { DF } & \text { Prob> }|\mathrm{T}| & \\ \hline \text { Unequal } & -0.8276 & 62.8 & 0.4110 & \\ \text { Equal } & -0.8336 & 76.0 & 0.4071 & \end{array}$$

Write a few sentences summarizing the comparison of females and males, as if you were preparing a report for publication.

Simplify the expression (-3+3)+[8+(-12)]. If necessary, draw a number line to help you.

How did Cavour's appointment as prime minister of the kingdom of Sardinia help the cause of Italian unification?

you learned the mnemonic ROY G. BIV to help you remember the order of the colours in the visible spectrum. Devise a mnemonic to help you remember the seven types of electromagnetic waves in the electromagnetic spectrum in order, from those with the lowest energy to those with the highest energy.

A social psychologist conducts a study to determine the relationship between religion and selfesteem. Ten eighth graders are randomly selected for the study. Each individual undergoes two tests, one measuring self-esteem and the other religious involvement. For the self-esteem test, the lower the score is, the higher self-esteem is; for the test measuring religious involvement, the higher the score is, the higher religious involvement is. The selfesteem test has a range from 1 to 10 and the religious involvement test ranges from 0 to 50. For the purposes of this question, assume both tests are well standardized and of interval scaling. The following data are collected.

$$\begin{matrix} & \text{Religious}\\\text{Subject} & \text{Involvement} & \text{Self-Esteem}\\\text{1} & \text{5} & \text{8}\\\text{2} & \text{25} & \text{3}\\\text{3} & \text{45} & \text{2}\\\text{4} & \text{20} & \text{7}\\\text{5} & \text{30} & \text{5}\\\text{6} & \text{40} & \text{5}\\\text{7} & \text{1} & \text{4}\\\text{8} & \text{15} & \text{4}\\\text{9} & \text{10} & \text{7}\\\text{10} & \text{35} & \text{3}\\\end{matrix}$$

a. If a relationship exists such that the more religiously involved one is, the higher actual self-esteem is, would you expect r computed on the provided values to be negative or positive? Explain. b. Compute r. Were you correct in your answer to part a?

The inductor in Figure earlier has inductance $0.260 \mathrm{H}$ and carries a current in the direction shown that is decreasing at a uniform rate. $d i / d t=-0.0180 \mathrm{~A} / \mathrm{s}$. (a) Find the self-induced emf.

Find the product. You may use grids to help.

$$1.8 \times 0.5 \times 100$$