The Latin root -jec-means "thro w." This root is found in many scientific words, such as conjecture, which means "to guess by 'throwing' facts or inferences together."
Choose the letter of the best definition for the given word below. "deject ": a. to "throw" forward b. to "throw" into c. to "throw" out of d. object designed to be "thrown" or shot e. path along which an object is "thrown" f. "thrown" away; hopeless g. state of being "thrown" down; depression h. "throw" back at

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."

The prefix se-means "away." In the $1860$s, the Confederate States tried to ______________ (literally, "go away") from the Union.

Predict the effect of each of the following on the indicated equilibrium system in terms of which reaction (forward, reverse, or neither) will be favored. $\mathrm{H}_{2}(g)+\mathrm{Cl}_{2}(g) \rightleftarrows 2 \mathrm{HCl}(g)+184 \mathrm{kJ}$ a. addition of $Cl_2$, b. removal of $HCl$, c. increased pressure, d. decreased temperature, e. removal of $H_2$, f. decreased pressure, g. increased temperature, h. decreased system volume.

The Latin root -jec-means "thro w." This root is found in many scientific words, such as conjecture, which means "to guess by 'throwing' facts or inferences together."
Choose the letter of the best definition for the given word below. " trajectory ": a. to "throw" forward b. to "throw" into c. to "throw" out of d. object designed to be "thrown" or shot e. path along which an object is "thrown" f. "thrown" away; hopeless g. state of being "thrown" down; depression h. "throw" back at

The Latin root -jec-means "thro w." This root is found in many scientific words, such as conjecture, which means "to guess by 'throwing' facts or inferences together."
Choose the letter of the best definition for the given word below. " projectile ": a. to "throw" forward b. to "throw" into c. to "throw" out of d. object designed to be "thrown" or shot e. path along which an object is "thrown" f. "thrown" away; hopeless g. state of being "thrown" down; depression h. "throw" back at

A girl riding a bicycle at 2.0 m/s throws a tennis ball horizontally forward at a speed of 1.0 m/s from a height of 1.5 m. At the same moment, a boy standing on the sidewalk drops a tennis ball straight down from a height of 1.5 m. If air resistance is disregarded, which ball will have a greater speed (relative to the ground) when it hits the ground? A. the boy’s ball, B. the girl’s ball, C. neither, D. The answer cannot be determined from the given information.

A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of $800.0 \mathrm{~N}$ on him. The mass of the losing player plus equipment is $90.0 \mathrm{~kg}$, and he is accelerating backward at $1.20 \mathrm{~m} / \mathrm{s}^2$. (a) What is the force of friction between the losing player's feet and the grass? (b) What force does the winning player exert on the ground to move forward if his mass plus equipment is $110.0 \mathrm{~kg}$ ?

A car and driver with a combined mass of $1.5 \times 10^3 \mathrm{~kg}$ experience a forward force of $7.67 \times 10^3 \mathrm{~N}$ and forces of friction and drag of $7.7 \times 10^2 \mathrm{~N}$. What is the acceleration of the car and driver? (a) $4.1 \mathrm{~m} / \mathrm{s}^2$ (b) $4.6 \mathrm{~m} / \mathrm{s}^2$ (c) $5.1 \mathrm{~m} / \mathrm{s}^2$ (d) $5.6 \mathrm{~m} / \mathrm{s}^2$

The Latin root -jec-means "thro w." This root is found in many scientific words, such as conjecture, which means "to guess by 'throwing' facts or inferences together."
Choose the letter of the best definition for the given word below. " project": a. to "throw" forward b. to "throw" into c. to "throw" out of d. object designed to be "thrown" or shot e. path along which an object is "thrown" f. "thrown" away; hopeless g. state of being "thrown" down; depression h. "throw" back at

Suppose a large truck is carrying a heavy load. A significant hazard for the driver is that the load may slide forward, crushing the cab, if the truck stops suddenly in an accident or even in braking. Assume, for example, that a $10000-\mathrm{kg}$ load sits on the flatbed of a $20000-\mathrm{kg}$ truck moving at $12.0 \mathrm{~m} / \mathrm{s}$. Assume that the load is not tied down to the truck, but has a coefficient of friction of $0.500$ with the flatbed of the truck. Tell that is any piece of data unnecessary for the solution?

Complete the following sentences by choosing the word that best fits the context, based on information you infer from the use of the italicized word. Some word pairs will be antonyms, some will be synonyms, and some will simply be words often used in the same context. Ophelia exhorted her friends in their most _____ moments, compassionately urging them to move forward and to live life once again. A. pertinent, B. dolorous, C. gargantuan, D. grandiloquent, E. affable.

Find an LU-decomposition of the coefficient matrix A, and use it to solve the system $A \mathbf{x}=\mathbf{b}$ by forward substitution followed by back substitution.

$$\left[\begin{array}{rrr}{2} & {-2} & {-2} \\ {0} & {-2} & {2} \\ {-1} & {5} & {2}\end{array}\right]\left[\begin{array}{l}{x_{1}} \\ {x_{2}} \\ {x_{3}}\end{array}\right]=\left[\begin{array}{r}{-4} \\ {-2} \\ {6}\end{array}\right]$$

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Cargo is tied with rope on the roof of a 4.5-foot-tall car. The car is traveling down a road at 42 mph and hits a concrete barrier. The rope snaps, allowing the cargo to propel forward. Use the equations $y=-16.1 t^{2}+4.75$ and $y=-0.0042 x^{2}+4.75$ where y represents height in feet, x represents horizontal distance in feet, and t represents time in seconds, to find the time it takes for the cargo to hit the ground and the horizontal distance it travels.

A horizontal axisymmetric jet of air with 0.4-in.-diameter strikes a stationary vertical disk of 7.5 in. diameter. The jet speed is 225 ft/s at the nozzle exit. A manometer is connected to the center of the disk. Calculate (a) the deflection, if the manometer liquid has SG= 1.75, (b) the force exerted by the jet on the disk, and (c) the force exerted on the disk if it is assumed that the stagnation pressure acts on the entire forward surface of the disk. Sketch the streamline pattern and plot the distribution of pressure on the face of the disk.