In 2001, people in some counties of Indiana did not set clocks forward in the spring to use daylight saving time. There are 92 counties in the state. Of those, 77 counties used eastern time without daylight saving. Five counties used eastern time with daylight saving. Ten counties were on central time with daylight saving. About what percent of Indiana's counties did not use daylight saving time?

The below statement corresponds to a numbered sentence in the passage. It contains a blank and is followed by four answer choices. Decide which choice fits best in the blank. The word or phrase that you choose must express roughly the same meaning as the italicized word in the passage. Write the letter of your choice on the answer line.

The Nile becomes $\underline{?}$ , almost losing its forward motion. ___________ (torpid)

a. destructive b. relentless c. renewed d. sluggish

If the 3-month forward exchange rate is USD1.55 = GBPI and the 3-month interest rate on dollars is 3.5% (effective annual rate), what do you think is the 3-month sterling (U.K.) interest rate? Explain what would happen if the rate were substantially above your figure. (Hint: In your calculations remember to convert the annually compounded interest rate into a rate for 3 months.)

Weddell seals foraging in open water dive toward the ocean bottom by swimming forward in a straight-line path tipped below the horizontal. The tracking data for one seal showed it taking 4.0 min to descend 360 m below the surface while moving 920 m horizontally. a. What was the angle of the seal's path below the horizontal? b. What distance did the seal cover in making this dive? c. What was the seal's speed, in m/s?

The human head can be considered as a $3.3\text{~kg}$ cranium protecting a $1.5\text{~kg}$ brain, with a small amount of cerebrospinal fluid that allows the brain to move a little bit inside the cranium. Suppose a cranium at rest is subjected to a force of $2800 \mathrm{~N}$ for $6.5 \mathrm{~ms}$ in the forward direction. The back of the cranium then collides with the back of the brain, which is still at rest, and the two move together. What is their final speed?

The $K_{\mathrm{c}}$ at $100^{\circ} \mathrm{C}$ is $2.0$ for the decomposition reaction of NOBr. $2 \operatorname{NOBr}(g) \rightleftarrows 2 \mathrm{NO}(g)+\mathrm{Br}_2(g)$ $In an experiment,$1.0$mole of$ $\mathrm{NOBr}$, 1.0$mole of$ $\mathrm{NO}, and$1.0$mole of$ $\mathrm{Br}$_2$were placed in a$1.0 $$ \mathrm{~L}$ container. c. If not, will the rate of the forward or reverse reaction initially speed up? $$

Albert is piloting his spaceship, heading east with a speed of $0.95~ c$ relative to Earth. Albert's ship sends a light beam in the forward (eastward) direction, which travels away from his ship at a speed $c$. Meanwhile, Isaac is piloting his ship in the westward direction, also at $0.95~ c$, toward Albert's ship. With what speed does Isaac see Albert's light beam pass his ship?

Study the entries and answer the question that follows.

The roots grad and gress mean "step."

The roots ced and cess mean "go."

The prefix de- means "down."

The prefix pro- means "forward."

The prefix re- means "back."

The prefix di- means "apart" or "away from."

The prefix trans- means "across" or "through."

Using literal translations as guidance, define the following words without using a dictionary.

procession

Consider a common mirage formed by superheated air immediately above a roadway. A truck driver whose eyes are 2.00 m above the road, where n = 1.000293, looks forward. She perceives the illusion of a patch of water ahead on the road. The road appears wet only beyond a point on the road at which her line of sight makes an angle of $1.20^{\circ}$ below the horizontal. Find the index of refraction of the air immediately above the road surface.

Albert is piloting his spaceship, heading east with a speed of 0.90 c. Albert 's ship sends a light beam in the forward (eastward) direction, which travels away from his ship at the speed c. Meanwhile, Isaac is piloting his ship in the westward direction, also at 0.90c, toward Albert's ship. With what speed does Isaac see Albert's light beam pass his ship?

The spring has a stiffness k = 50 lb/ft and an unstretched length of 2 ft. As shown, it is confined by the plate and wall using cables so that its length is 1.5 ft. A 4-lb block is given a speed $v_A$ when it is at A, and it slides down the incline having a coefficient of kinetic friction $\mu_k = 0.2$. If it strikes the plate and pushes it forward 0.25 ft before stopping, determine its speed at A. Neglect the mass of the plate and spring.

Given the equation representing a reversible reaction: $\mathrm{NH}_{3}(g)+\mathrm{H}_{2} \mathrm{O}(\ell) \rightleftarrows \mathrm{NH}_{4} \ ^{+}(a q)+\mathrm{OH}^{-}(a q)$ According to one add-base theory, the reactant that donates an $\mathrm{H}^{+}$ ion in the forward reaction is: (1) $\mathrm{H}_{2} \mathrm{O}(\ell)$ (2) $\mathrm{NH}_{3}(g)$ (3) $\mathrm{NH}_{4}^{+}(a q)$ (4) $\mathrm{OH}^{-}(a q)$.

A palindrome is any number that reads the same backward and forward. For example, $262$ and $37673$ are palindromes. In the accompanying example, the process of reversing the digits and adding the two numbers has been repeated until a palindrome is obtained.

$$\begin{array}{r} 67 \\ +\quad 76 \\ \hline 143 \\ +\quad 341 \\ \hline 484 \end{array}$$

a. Try this method with the following numbers. i. 39 ii. 87 iii. 32

Ammonia gas dissolves in water according to the following equation:

$$\mathrm{NH}_3(g)+\mathrm{H}_2 \mathrm{O}(l) \rightleftarrows \mathrm{NH}_4^{+}(a q)+\mathrm{OH}^{-}(a q)+\text { energy; } K=1.8 \times 10^{-5}$$

______________a. Is aqueous ammonia an acid or a base?

______________b. Is the equation given above an example of hydrolysis?

______________c. For the given value of $K$, does the equilibrium favor the forward or reverse reaction?