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john
Questions (2,090)
if you have a intial object going 1m/s to the right then after 1.2seconds its going 0.5m/s to the left.
whats is the constant
1 answer
353 views
A person opens a door by applying a 11-N force perpendicular to it at a distance 0.90m from the hinges. The door is pushed wide
0 answers
531 views
A person opens a door by applying a 11-N force perpendicular to it at a distance 0.90m from the hinges. The door is pushed wide
2 answers
840 views
Which of the following sentences is written correctly?
Mother gets a bit of family news, whenever my aunt visits her Mother gets
7 answers
970 views
Their professor, who was known for his imposing demeanor, looked around the classroom before stating. "Each of you students are
10 answers
1,064 views
Which of the following sentence correctly follows the rules of punctuation and
capitalization? There are two main sources of
4 answers
2,413 views
How a radioactive element will decay over time?
1 answer
540 views
55=8-6t+3+2t
1 answer
293 views
A satellite of the Earth has a mass of 1550 kg. It orbits Earth with a mean radius of orbit of 7.00 x 10^6 m.
a) What is the
2 answers
770 views
after the dna strands are separated, which of the following is the next step of DNA replication in the S phase of the cell
0 answers
623 views
in evolutionary terms, RNA is thought to have preceded proteins and DNA. Which of the following observations provides the most
0 answers
779 views
after the DNA strands are separated, which of the following is the next step of DNA replication in the S phase of the cell
0 answers
669 views
Which of the following factors is the most likely explanation for an energy deficit that results in exercise-induced exhaustion?
3 answers
636 views
it has been hypothesized that chloroplasts originated from photosynthetic cyanobacteria that became symbiotic inside a host
2 answers
1,326 views
How much work is needed to move a -8.00 uC charge from the ground to a point whose potential is +75.0V ?
I know -8.00 uc = -0.8 x
0 answers
772 views
If a small planet were discovered whose orbital period was twice that of
Earth, how many times farther from the Sun would this
0 answers
757 views
simplify the square root of 20 minus the square root of 5 plus the square root of 45
1 answer
466 views
You were given 10 math problems for homework. You completed 310 of them at school. Which equation shows how to find the fraction
9 answers
1,707 views
suppose that prices of a certain model of new homes are normally distributed with a mean of $150,000 use the rule to find the
1 answer
1,880 views
A football kicker can give the ball an initial speed of 25m/s. What are the greatest and least elevation angles at which he can
1 answer
976 views
Table of enthalpy of solution for selected cesium salts
Compound and ΔsolH kJ mol-1: - Cesium bromide: 25.98 - Cesium iodide:
6 answers
914 views
The figure above shows a chain being held on a table with one quarter of its length hanging over the edge. Friction is
0 answers
626 views
A 13 ohm, 35 ohm, and 2k ohmresistor are connected in a series circuit with a 190 V battery. What is the equivalent resistance
1 answer
491 views
1.1 The gametophyte generation in a fern plant changes to the sporophyte generation by A.fertilisation B.melosis C.asexual
0 answers
694 views
What volume (in mL) of 0.55 M Na2SO4 solution is needed to precipitate all the barium, as BaSO4(s), from 15.5 mL of 0.25 M
1 answer
908 views
find the length of an arc of a circle of radius 5.6 cm which subtends an angle of 60 degrees at the centre of the circle.(take
2 answers
1,387 views
How do i find the 12th term of the sequence
36,18,9.... using a formula
4 answers
1,136 views
find the number of terms for the following sequence.
125,109,93,.......-115 i got the answer of 15 terms. How do i get it though
1 answer
562 views
find the missing terms for the following sequence
geometric sequence 96,__,__,__,6
1 answer
723 views
find the 12th term of the sequence
36,18,9....
2 answers
1,148 views
How much heat is produced by the complete reaction of 5.91kg of nitromethane?
1 answer
751 views
15. Identify the sentence in which the underlined pronoun is used incorrectly.
There are only six days left in the school year.
4 answers
4,315 views
Five friends picked 7 pounds of apples. They will share the apples equally. How much will each get?
3 answers
1,461 views
17. Calculate H for the following reaction using Hess law
H2 (g) + Br2 (g) → 2 HBr (g) Experimental information 2 H+ → H2
1 answer
1,242 views
I have 10 letters. My 1st and 2nd letter means not. My 1st to 5th letter means below. My 6th to 10th letter is to stand. In all,
1 answer
588 views
a 50g bullet is shot from a rifle at 900m/s
a) what is the KE of the bullet? b) how much work is done on the bullet if it starts
1 answer
541 views
75 pupils sat for a Science Test. The average score was 58 marks. If the average score of the girls was 62 marks and the average
3 answers
564 views
which of the following molecules will exhibit hydrogen bonding?
a. CH3OCH3 b. HF c. CH4 d. LiH
2 answers
3,180 views
Mary invested $3,750 for 42 months at a simple interest rate of 3.85%. How much interest did she earn?
1 answer
556 views
Evaluate using L'Hopital Rule?
lim as x approaches x from left (1-x)^(3/x)
1 answer
634 views
when 5g of impure sample of CH4 is completely combusted, 9g of H2O was produced.what is the percentage purity of the sample of
1 answer
489 views
what is y=x^2-2x-8 in vertex form?
1 answer
418 views
Hi,
How do I improve my math skills? I can't calculate in my head (I.e 2x43), I would actually have to write it down to solve it.
1 answer
689 views
1.. Write the decimal three and four thousandths.
2.. the ratio of apples to bananas is 4:1.
5 answers
754 views
At a certain location in the Coachella Valley of California the elevation is 215 feet below sea level.
Clara wrote this elevation
2 answers
808 views
3/8jof the cast in a musical hE TO SING. WHAT FRACTION OF THE CASt DOES not have to sing?
1 answer
457 views
how many terms are there in an arithmetric sequence if it has a common difference of 3 , a last term of 30 and the sum of its
1 answer
517 views
If a rubber tire having a weight of 18.0lbs requires a force of 38.0N to keep it in uniform motion on a level highway find the
0 answers
463 views
assume that a business firm
produces two commod ities, X and Y, with two different inpu ts, Labour (L) and Capital (K). The total
0 answers
515 views
trying to help the kid with hw but not smart enough. please help.
Thank You! -(5/7) ^ -2/5 can be written as -(a)^b where "a" is
1 answer
512 views
one company makes 50 t-shirts for $295 and another offers 40 t-shirts for $250. which company is the better deal? answer please
3 answers
459 views
Spencer Morris works in the telemarketing division for a company that pays a salary of $735
per month plus a commission of 31 2%
1 answer
585 views
(cx)={X if 0 is less than or equal x less than or equal 10 and 0.9x if 10<x
1 answer
420 views
27=-2y+15
2 answers
287 views
Let X be a number. Translate the English phrase or sentence into a mathematical expression. Then evaluate the expression for X
4 answers
4,005 views
As part of a data base on new births at a hospital some variables recorded are the age of the mother, marital status of the
1 answer
914 views
Solve, using linear combination.
5x + y = 2 4x + y = 4 Write your answer as an ordered pair or write "no solution" or "infinitely
1 answer
540 views
1. A sudden escalation in medical costs for treatment of ischemic heart disease would immediately:
Answer Benefit providers. Be
1 answer
510 views
Chisel is a pivot point between the wire and a 2 cm distance between the pins and the hand is 10 cm F 50 Newton force
How much is
6 answers
524 views
a packing device is set to fill detergent powder packet with a mean weight of 5 kg . The standard deviation is known to be 0.01
0 answers
699 views
a boy has 380 prize tickets he wants to exchange for action figures at a prize booth,the prize both tickets 5 tickets can be
2 answers
1,560 views
what impulse is needed to slow a 45kg object from 15m/s to 12m/s?
0 answers
460 views
steven throws a 3.5kg ball at a speed of 25m/s. what is the momentum of the ball? Please show work
1 answer
445 views
how do you write the simplest polynomial function with the given zeros
1 answer
586 views
how do you write simples polynomial function with the given zero
1-i and 2
2 answers
446 views
how to you solve polynomial equation by factoring
x^3 + 3x^2 - 9x = 27
1 answer
1,375 views
solve polynomial equation by factoring
x^4 +100 = 29x^2
1 answer
530 views
solve polynomial equation by factoring
2x^3 - 12x^2 = 32x - 192
1 answer
809 views
how do you solve polynomial equation by factoring 3x^4 + 11x^3 = 4x^2
1 answer
548 views
how do you solve 3x^4 + 11x^3=4x^2
0 answers
337 views
need help please. the time required for one complete oscillation of a pendulum is called its period. if L is the length of the
1 answer
622 views
using long division
(x^6 - 4x^5 -7x^3) / (2x^3)
1 answer
428 views
a 2.0-kg ball has a momentum of 25 kg*m/s. what is the ball's speed?
2 answers
1,664 views
a net force of 200 newton's is applied to a wagon for 3 seconds. this causes the wagon to undergo a change in momentum of
1 answer
1,069 views
a net force of 100 newton's is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of
2 answers
1,838 views
Use Table 9.4 to calculate an approximate enthalpy or heat of reaction for the combustion of one mole of methane gas (CH4) to
1 answer
1,426 views
Using Table 9.4, calculate an approximate enthalpy (in kJ) for the reaction of 1.02 g gaseous methanol (CH3OH) in excess
1 answer
1,268 views
A student obtained an average PV value of 42,000 in column (f) of the data table. If the syringe had been able to be adjusted to
1 answer
2,157 views
Draw the dominant Lewis structure for NO2+. Note, that this ion is isoelectronic with CO2. How many double bonds does this
0 answers
1,224 views
Draw one of the Lewis structure of the N2O5. In each case one oxygen bridges the nitrogens (N-O-N single bond) and 2 other
1 answer
852 views
The average car today has a mass of 1100 kg, and when accelerating from rest, covers 0.25 miles in 15 seconds. Each rim and tire
1 answer
543 views
let f(x)=-5x+6 find and simplify f(x+2)
f(x+2)=___
1 answer
342 views
Under certain conditions, the reaction
3 A + 4 B → 5 C is observed to proceed at a rate of 0.0106 M · s−1. What is the
1 answer
777 views
Find the x- and y-coordinates of the center of gravity of a 4.00 ft by 8.00 ft uniform sheet of plywood with the upper right
0 answers
929 views
Two people (from the 1950s!) sit on opposite sides of a uniform board of length L. One person, of mass m1 = 50.0 kg, sits at a
2 answers
646 views
the lenght of a rectangle is twice its width.If the width is reduced by 1cm and the lenght is also reduced by 2cm,the area will
1 answer
768 views
Compare the literary and rhetorical devices in Elie Wiesel's Nobel Peace Prize Acceptance Speech and his novel Night. Explain
1 answer
1,160 views
How did Europe’s geography/advantages lead to its rise as a global power?
3 answers
574 views
how do i work this problem 8x25x23 using subtraction in mental math
2 answers
1,582 views
If there were no air resistance, with what
speed would drops hit the Earth if they fell from a cloud 1980 m above the Earth’s
1 answer
1,308 views
2/5(x+3)=6
2/5x+6/5=6 5/2(2/5x) +6/5 = 6(5/2) X+6/5=15 X-6/5=15-6/5 X=
1 answer
301 views
A 3.70 L sample of neon at 11.24 atm is added to a 10.0 L cylinder that contains argon. If the pressure in the cylinder is 5.24
0 answers
695 views
a fish tank that holds 80 gallons of water is 55 percent full how many gallons are in the tank now and how many more gallons are
4 answers
2,310 views
A farmer wants to make three identical rectangular enclosures along a straight river, as in the diagram shown below. If he has
1 answer
5,410 views
there are 32 boys and 24 girls. what re the various number of teams that can be made that would have the same number of boys and
1 answer
1,083 views
when the students place the unknown cart on the scale the scale reads the mass of 1.20 kg
a)calculate the percent difference b)
0 answers
500 views
Please check my answers I think they are right if not please tell me where I went wrong. Thanks
The annual net income of general
2 answers
611 views
if total ticket sales were $1625 adult tickets were $7.00 and student tickets were $3.00 and twice as many students bought
1 answer
697 views
A solution is prepared by placing 23.9 g of KCl in a 0.500 L volumetric flask and adding water to dissolve the solid, then
1 answer
1,149 views
jocelyn got 19 correct answers out of 25 questions on her last test. What percent of the questions did she answer correctly?
2 answers
741 views
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