What is the basic particle of an element called?

Find the angular magnification of a telescope that has a $100 \mathrm{~cm}$-focal length objective and a $2.50 \mathrm{~cm}$-focal length eyepiece.

A well-insulated turbine operating at steady state develops 28.75 MW of power for a steam flow rate of 50 kg/s. The steam enters at 25 bar with a velocity of 61 m/s and exits as saturated vapor at 0.06 bar with a velocity of 130 m/s. Neglecting potential energy effects, determine the inlet temperature, in $^{\circ}C$.

The car C and its contents have a weight of 600 lb, whereas block B has a weight of 200 lb. If the car is released from rest, determine its speed when it travels 30 ft down the $20^{\circ}$ incline. Suggestion: To measure the gravitational potential energy, establish separate datums at the initial elevations of B and C.

A neutral atom of a certain element has 17 electrons. Without consulting a periodic table, write the ground-state electron confi guration of the element.

Leveled Practice In , write equivalent expressions.

$2.2 x+2.2$

The KOT club has seven pledges. They will send at least 2 and no more than 6 pledges to work at Goodwill on Helping-Out Day. In how many ways can this be done?

Choose the interrogative word from the word bank that best completes each sentence and write it in the space provided.

Quiero saber __________ esta la iglesia.

*cual *cuantas *donde *quien *por que

Write as an ordinary decimal number: a. The estimated population of the world in the year 2010 is

$$6.8 \times 10 ^ { 9 }$$

people. b. 80 gsm photocopy paper has a thickness of

$$1.1 \times 10 ^ { - 4 }$$

metres. c. A small virus has greatest width of

$$9.8 \times 10 ^ { - 4 } \mathrm { mm }$$

. d. The diameter of the Milky Way is

$$1.4 \times 10 ^ { 5 }$$

light years.

The data shows the number of hours different players practice basketball each week and the number of baskets each player scored during a game.

Alan - 5 hours Practiced - 6 baskets

Brenda - 10 hours Practiced - 11 baskets

Caleb - 7 hours Practiced - 8 baskets

Shawna - 2 hours Practiced - 4 baskets

Fernando - 0 hours Practiced - 2 baskets

Gabriela - 21 hours Practiced - 19 baskets

a. Find an equation for a line of best fit Round decimals to the nearest tenth.

b. Interpret the meaning of the slope and y-intercept

c. Find the correlation coefficient

n each of the following sentences, circle any letter that should be capitalized and draw a slash (/) through any letter that is capitalized but should not be. Example: $\text{\textcircled}{\text{n}}$igetl enjoys stories about $\cancel{\text{T}}$he $\cancel{\text{L}}$egendary $\text{\textcircled}{\text{k}}$ing Arthur of $\text{\textcircled}{\text{b}}$ritain and his knights the letter I found in my Great-Grandmother's papers began, "my dearest mimi."

An astronomical telescope has an objective with focal length 85 cm and a $+ 40$-$\mathrm{D}$ eyepiece. What is the total magnification?

(a) Prove the result in the earlier example by induction.

(b) Prove the result of the earlier example directly by recursively substituting $(1+x^k )= (1−x^{2k} )/(1−x^k)$ in g*(x).

Above each of the following items, write $C$ if brackets are used correctly or $I N$ if they are used incorrectly.

Example 1. Referring to the "American dream," the writers assert that "The Great Gatsby by F. Scott Fitzgerald [1896 $\overset{C}{-}$ 1940] mirrors both its failures and its promises."

10. I also pointed out that the Great Depression [of the 1930s] extinguished some of this optimism.