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katie
Questions (440)
Ruby emailed her instructor a question and he replied to her immediately.
1 answer
1,017 views
A rock tumbles straight down from a cliff, its moving at 20 m/s when it hits. What is the height of the cliff? The mass of the
3 answers
1,064 views
A subcompact car, mass 1,000 kg, runs into and sticks to an at rest, 2,200 kg SUV. If their final speed is 4.7m/s ,what was the
2 answers
651 views
determine the intervals for which the curve r(t)=4sin^3(t)i+7cos^3(t)j is smooth on [0,2π
1 answer
373 views
The angle of incidence and the angle of refraction for light going from air into a material with a higher index of refraction
0 answers
682 views
when magnesium chlorate under goes decompostion, oxgen gas is realsed in the following reaction:
2KClO3→ 2KCl + 3O2 repeat
3 answers
602 views
magnesium chlorate under goes decompostion, oxgen gas is realsed in the following reaction:
2KClO3 → 2KCl + 3O2 when 3.50 grams
2 answers
450 views
when magnesium chlorate under goes decompostion, oxgen gas is realsed in the following reaction:
2KClO3→ 2KCl + 3O2 when 3.50
3 answers
400 views
A stereo speaker represented by P in the figure below emits sound waves with a power output of 114 W. What is the intensity of
0 answers
1,175 views
What is the approximate circumference of a pizza pan with a diameter of 13.2 inches? (Use π = 3.14)
6 answers
2,665 views
the total electric field e consists of the vector sum of two parts. one part has a magnitude of e1 = 1284 n/c and points at an
0 answers
757 views
How long will it take a sample of polonium-210 with a half-life of 140 days to decay to one-sixty-fourth of its original
2 answers
2,732 views
Explain why n*0=0
1 answer
325 views
A child and sled with a combined mass of 47.4 kg slide down a frictionless hill that is 8.61 m high. If the sled starts from
1 answer
885 views
how can you paint
1 answer
254 views
jim claims that the ratio of males to females in his class of 26 students is 3:2. Could jim be correct?
1 answer
505 views
A sample of unknown metal has a mass of 36.7 g. This metal was placed in boiling water at 96.0oC until the metal had reached the
1 answer
765 views
I need help on rootwords im stuck on sepect meaning look I have to find 3 words with sepect in it then put the meaning
1 answer
632 views
why is rikki tikki tavi not afraid to fight a cobra snake
6 answers
761 views
You are arguing over a cell phone while trailing an unmarked police car by 25.0 m; both your car and the police car are
1 answer
1,171 views
if a ball is tossed from ground level upward at a speed of 44 m/s how long will it take to reach its maximum height
1 answer
435 views
An automobile tire has a radius of 0.335 m, and its center moves forward with a linear speed of v = 24.1 m/s. (a) Determine the
2 answers
529 views
An electrostatic paint sprayer has a 0.200-m-diameter metal sphere
at a potential of 25.0 kV that repels paint droplets onto a
1 answer
1,144 views
what does it mean to follow in someones footsteps exceedingly?
0 answers
357 views
If your starting salary increases 5% per year for 10 years, how does your salary at the end of the 10 years compare with your
1 answer
475 views
write a brief description of the civil war activities in southern california from 1861-1865.
1 answer
419 views
if a woman has a 50 ft. piece of wire & cuts it into strips 1 2/3 feet long, how many pieces will she have
1 answer
746 views
a 2.3% (m/v) LiCI solution p;repared from 53.0 ml of a 10.0%(m/v)LiCI solution. what is volume in milliliters
1 answer
355 views
a 1.6kg block of wood is floating in water. what is the magnitude of the buoyant force the block?
0 answers
426 views
a stone of mass 1 kg is tied to the end of a string 1m long . it is whirled in a vertical circle . if the velocity of the stone
1 answer
1,090 views
4xsquared+ 4x -3 =0
SOLVE
1 answer
513 views
Anyone know what 1/2 is in simplest form??
1 answer
303 views
What is 2:1 and 1:2 in simplest form?
2 answers
330 views
What is the concentration when 60.0 mL of a 9.00 M HCl solution is diluted to 1.170 liters? and how do you solve this problem?
0 answers
297 views
In a certain region, the mean annual salary for plumbers is $51,000. Let x be a random variable that represents a plumber's
4 answers
2,074 views
the breaking distance of a Honda CRV can be approximated by a normal distribution, where the mean is 53 meters and the standard
1 answer
900 views
A $90,000 investment is made. Over a 5 year period, a return of $30,000 occurs at the end of the first year.
Each successive year
0 answers
1,098 views
You plan to open a retirement account. Your employer will match 50 percent of your deposits up to a limit on the match of $2500
1 answer
589 views
driving along a crowded freeway you notice that it takes a time to go from one mile marker to the next. when you increase your
3 answers
2,114 views
14=2/3(9y-15)
1 answer
302 views
Newton’s Second Law of Motion is expressed as F = ma. If you are pushing a lawn mower in your backyard and suddenly double the
2 answers
1,039 views
Which of the following types of information are people LEAST comfortable revealing to professionals?
a. emotional b. financial c.
4 answers
1,051 views
Calculate how long a de-orbit burn must last in minutes and seconds to achieve the Shuttle’s change in altitude from 205 miles
0 answers
529 views
im trying to finish these classes soon so i can start college, but honestly they are too complex. and i NEED HELP!!!!
I have 1-5
4 answers
601 views
I am a 4digits number with 6 hundreds and 5ones.The sum of all my digits is 15 .What number am I
1 answer
366 views
Use the function rule, y = 2x + 5, to find the values of y when x = 1, 2, 3, and 4. Write the answers as ordered pairs that
13 answers
3,588 views
Use the function rule, y = 2x + 5, to find the values of y when x = 1, 2, 3, and 4. Write the answers as ordered pairs that
3 answers
1,674 views
cotx+tanx=secx+cscx
0 answers
581 views
what is the question to usa studies weekly 9
5 answers
1,028 views
hi ive been reading a book called, the berlin boxing club, and one of my hw assignments say i need to find 10 quotes in the book
1 answer
1,017 views
hi ive been reading a book called, the berlin boxing club, and one of my hw assignments say i need to find 10 quotes in the book
0 answers
421 views
Find the Difference quotient:
4/(x-3)^2
3 answers
394 views
To what volume must 25.0mL of 18.0M H2SO4 be diluted to produce 1.50 M H2SO4?
1 answer
929 views
A 150mL sample of 0.45 M HNO3 is diluted to 450 mL. What is the molarity of the resulting solution?
1 answer
1,119 views
If 25.0mL of 0.56 M H2SO4 is diluted to a volume of 125 mL, what is the molarity of the resulting solution?
3 answers
1,424 views
what is the average length of a single cell in micrometers?
a)2,000um b)100um 3)10um 4)200um
1 answer
1,436 views
use words 9-15 in a creative story. can you please help me!!
besiege ephemeral altruism carrion erotic amorphous opulent I KNOW
0 answers
462 views
why is scientific inquiry a process with many paths, not a rigid sequence of steps?
8 answers
1,548 views
how are the purposes of science and technology different?
3 answers
342 views
Solve for y:
(y-(10/y))^2+6(y-(10/y))-27=0
1 answer
300 views
solve for x:
(x^2-2x)^2 -11(x^2-2x)+24
1 answer
354 views
Jean Piaget was a
A. factory worker. B. pediatrician C. developmental psychologist. D. child care provider.
1 answer
520 views
if the mean=100 and the standard deviation=8,
calculate p(x>108)
0 answers
388 views
(x^2+11)/(3-x) x=4i
1 answer
282 views
Preform the indicated operations and write the results in standard form. ( i= imaginary number)
√-12(√-4-√2)
1 answer
453 views
in a baseball game a 0.2 kg ball moving at 12 m/s is hit by a bat. after the impact the ball moves in the opposite direction
2 answers
2,929 views
A 20.0 mL sample of 0.687 M HBr is titrated with a 0.216 M NaOH solution. The pH after the addition of 10.0 mL of NaOH is
0 answers
590 views
A 20.0 mL sample of 0.687 M HBr is titrated with a 0.216 M NaOH solution. The pH after the addition of 10.0 mL of NaOH is
2 answers
1,244 views
how do i do a 7 by 10 array look like
1 answer
395 views
A 0.130kg baseball pitched at 35.5 m/s is hit on a horizontal line drive straight back at the pitcher at 50.5 m/s .
Part a: If
6 answers
2,997 views
A 0.130kg baseball pitched at 35.5 m/s is hit on a horizontal line drive straight back at the pitcher at 50.5 m/s .
Part a: If
1 answer
533 views
Question:
A particle is initially traveling to the right when it hits a wall and turns around to the left. The momentum after the
2 answers
625 views
At what temperature will a 1.0 g sample of neon gas exert a pressure of 500 torr in a 5.0 L container ?
or At what temperature
1 answer
1,278 views
why do people celebrate when its kosovo's independence day?
1 answer
431 views
A 2.8 kg rectangular air mattress is 2 meters long,.5 meters wide, and .1 meter thick what mass can't support 50% submerged.
1 answer
1,693 views
The driver of a 1,450kg car, whose iron brake calipers mass is 3kg endures a brain malfuction at the top of a 20 degree parking
0 answers
1,065 views
Fruity Florida farmers fecklessly fling flying fountains of water on the fruit during cold snaps. Explain why they do this
1 answer
305 views
how many time outs do you get in a middle school backetball game.
how many fouls have you gotten when you foul out of a middle
0 answers
531 views
A horizontal water main with a cross-sectional area of 206 cm2 necks down to a pipe of area 42.4 cm2. Meters mounted in the flow
0 answers
726 views
an isolated quantity of an ideal gas at 297.2 K has a volume of 14.96 L at a pressure of 1.63 atm.
What is the volume of this gas
2 answers
633 views
A recreational (open) hot air balloon (i.e., Pinside is approximately the same as Poutside) has a volume of 2227 m3 when fully
0 answers
650 views
A researcher wishes to estimate the mean weekly wage of the several hundreds of workers employed
by a certain firm within
1 answer
828 views
A cylinder of mass M=58 kg, radius R=1.3 m and moment of inertia I=(1/2)MR2 is initially rotating around its central axis with
0 answers
479 views
A bug that has a mass mb = 1 g walks from the center to the edge of a disk that is freely turning at 38 rpm. The disk has a mass
1 answer
650 views
using the following mechanism, determine the rate law.
2A <-- --> B+C B+D --> E 2A + D --> C + E k=? please indicate which k you
0 answers
373 views
The following reaction is a single-step, bimolecular reaction:
CH3Br + NaOH --> CH3OH + NaBr When the concentrations of CH3Br and
0 answers
1,046 views
A particular reactant decomposes with a half-life of 103 s when its initial concentration is 0.397 M. The same reactant
0 answers
1,078 views
A particular reactant decomposes with a half-life of 103 s when its initial concentration is 0.397 M. The same reactant
0 answers
508 views
"joyce is decorating her store window for a going-out-of-business sale. she wants to design some art that looks like the diagram
2 answers
723 views
A galvanic cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode composed of
1 answer
2,140 views
A galvanic cell consists of an electrode composed of nickel in a 1.0 M nickel(II) ion solution and another electrode composed of
1 answer
1,507 views
multiply
6sqrt25x^3*sqrt4x^3
1 answer
307 views
multiply 6sqrt25x^3
0 answers
327 views
While riding your motorcycle, you break to miss hitting a dog. your tires leave a skid mark as you come to a stop. the skid mark
1 answer
394 views
At 20 °C, chloroform (CHCl3) has a density of 1.489 g/mL. What is the mass of 7.52 mL of chloroform at 20°C?
1 answer
1,963 views
When 15.5 + 0.125 + 2.55 are added, the answer with the correct number of significant figures is
1 answer
427 views
The lob in tennis is an effective tactic when your opponent is near the net. It consists of lofting the ball over his head,
0 answers
804 views
What is the pH of a 2.8 M solution of HClO4?
0 answers
364 views
What is the pH of a 2.8 M solution of HClO4?
5 answers
9,474 views
A solution of NaOH(aq) contains 6.2 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25
3 answers
5,923 views
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