Ask a New Question
Search
Questions and answers by
grace
Questions (181)
int x^2/(x-2)(x^2+1)dx
1 answer
330 views
Given that r1=6i-8j+2k,r2=4i+5j+7k,r3=-2i+j+6k is a vector. Find r1r2,r2r3,r3r1(a)30,21,-8(b)26,23,8(c)24,19,-7(d)19,27,7
2 answers
476 views
if U=i+3j-2k and V=4i-2j-4k are vectors find U.V, 3U+V& (2U+V).(U-2V) (a)6,10,4(b)4143(c)11,4,5(d)5,11,6
1 answer
935 views
Two charges Q 1 =500/mu(C) and Q 2 =100/mu(C) are located on the XY plane at the positions r1=3/vec(j)m and r2=4/vec(i)m. Find
0 answers
393 views
Two large horizontal metal plates are separated by 4mm. The lower plate is at a potential of (-)6v.What potential should be
1 answer
1,523 views
At a point on the ground 80ft from the base of a tree,the distance to the top of the tree is 11ft more than 2 times the height
1 answer
806 views
6 ways in which earthquake can impact negatively on one's health
0 answers
739 views
from a standard deck of 52 cards, how many different five-card hands can be drawn?
1 answer
836 views
what is the total heat lost if you have 8 grams of copper and the temperature changed from 43°C to 36°C
1 answer
1,069 views
hi, i'm currently applying for the national junior honor society, and i'm working on my essay. any ideas what i should
2 answers
967 views
a sample of sulphuric acid is 95.7% by mass and has a density of 1.84g/cubic cm.calculate the mass of pure H2SO4 in a 2.00L
2 answers
1,231 views
what is the area of a section bounded by a closed elliptical figure in which the major and minor segments measure 60 cm and 45
1 answer
723 views
what do oxygen and sugars do in photosynthesis
1 answer
295 views
A passenger on a moving train tosses a coin with an initial velocity of (-2.25 m/s)x unit vector + 4.26 m/s)y unit vector (from
0 answers
515 views
What is the probability that a randomly selected three-digit number has the property that one digit is equal to the product of
1 answer
587 views
if there are 10 more girls than boys in a club with 60 members, how many are boys?
1 answer
432 views
Explain the focus on the idea of natural law as an extension of human nature during the conclusion of the seventeenth century.
2 answers
480 views
On an exam whose scores followed a normal distribution, a student's z-score was
+2. What percentage of students scored better
2 answers
1,568 views
if two dices are tossed together, the probability that the product will be less or equal to 18 what?
1 answer
397 views
tommy builds a human sling shot that has an elastic constant of 4000 N/m. He puts his little sister in it and pulls it back for
2 answers
433 views
Please I want to know how many litres make a metric tone.
1 answer
344 views
120ml of a solution whose concentration is 30g/ml was diluted with distilled water by raising its volume to 160cm3. Calculate
2 answers
419 views
I have a question. I think I'm wrong, so I want to ask if it's right. If I do 3/4 x 1 5/6 x 7/4 x (-2 3/8) would the answer be
1 answer
270 views
describe and compare total resource use per capita in developed and developing countries
0 answers
460 views
in the month of May, ronald earned $4.36 in interest on his saving account. if his interest rate is 0.2%, how much money was in
1 answer
406 views
concentrated sulfuric acid has a density of 1.84 g/ml. calculate the mass in grams of 1.00 liter of this acid
1 answer
1,458 views
The driver of a 1560 kg automobile traveling at 24 m/s on a leve, paved road hits the brakes to stop for a red light. determine
1 answer
515 views
how to figure 75% of 620
1 answer
296 views
explain why the synthesis of proteins, DNA and RNA requires energy.
thanks :)
1 answer
854 views
outline why energy is needed for each of these processes:
a. the transport of sucrose in a plant b the transmission of an action
2 answers
488 views
in emission spectrum which one has a highest frequency and highest energy is it blue red or violet? which one is the lowest?
2 answers
579 views
what will i answer if the question is " identify the symmetry" is it even/odd FUNCTION or Even/odd SYMMETRY?
0 answers
407 views
does elements with low energy have high frequency?
2 answers
989 views
A man pushing a mop across a floor causes the map to undergo two displacements. The first has a magnitude of 200 cm and makes an
0 answers
583 views
TGIF. Chris and Terry have been trying to live within their budget but miss going out to dinner on Friday nights. They decide
1 answer
1,021 views
Write the equation of the line satisfying the given condition.
Parallel to y = (2/3)x +1 and passing through the point (0, -3).
1 answer
547 views
Write the equation of the line satisfying the given condition.
Perpendicular to y = 4x + 2 and passing through the point (0, -4)
4 answers
1,756 views
Solve the inequality algebraically. Graph your solution on a number line.
1 answer
543 views
Suburban Population. The following charts show the populations for two suburbs from 1980 to 1990, where x = 0 correspond to
2 answers
829 views
A flat stone is thrown horizontally across a frozen lake. If the stone decelerates at 2.5 meter per second squared, what is the
1 answer
546 views
i need 3 examples of supension. any suggestions?
1 answer
468 views
A car is travelling at 42.4 km/h on a flat highway. The acceleration of gravity is 9.81 m/s^2. If the coefficient of friction
1 answer
557 views
find in implicit form, the general solution of the differential equation
dy/dx = 2(e^x-e^-x)/y^2(e^x+e^-x)^4
1 answer
454 views
What is the mass of a mole of
Sodium Carbonate?
2 answers
340 views
8.What is the mass of 4.56 moles of sulfur dioxide?
9.What is the mass of 4.56 molecules of sulfur dioxide? 10.How many formula
2 answers
4,032 views
1.How many atoms are in a sample of copper with a mass of 18.46 grams?
2.How many formula units are in a sample of salt with a
1 answer
875 views
1.How many atoms are in a sample of copper with a mass of 18.46 grams?
2.How many formula units are in a sample of salt with a
1 answer
1,472 views
Of the following types of information, which one has the strictest rules regarding the release of information?
A. substance abuse
0 answers
502 views
could someone tell me how to do this?
1. A diagram illustrating several tugboats applying forces to a barge is shown below. What
5 answers
624 views
Two cars travel westward along a straight highway, one at a constant velocity of 85 km/hr, and the other at a constant velocity
2 answers
6,189 views
An engineer is designing a runway for an airport. Several planes will use the runway and the
engineer must design it so that it
3 answers
2,600 views
If a car starts from rest and travels for 5.0 seconds with a uniform acceleration of +1.5 m/s2. The driver then applies the
2 answers
949 views
Two students are on a balcony 29.4 m above the street. One student throws a ball vertically downward at 14.7 m/s. At the same
0 answers
465 views
A small first aid kit is dropped by a rock climber who is descending at a constant velocity of
- 1.3m/s. a) Sketch the velocity
0 answers
513 views
what is the appearance of:
Iron? Sulphur? A mixture of both when heated?
0 answers
487 views
what is observeed when carbon dioxide was bubbled into bromothymol blue?
a. the color of the solution changed from greenish to
2 answers
1,463 views
when I bubbled Alka selzer into limewater I believe all I saw was small bubbles form. is that correct and why? if not what
2 answers
446 views
when you insert a glowing wooden toothpick into a oxygen-filled pipet what would you observe?
a. nothing b. the glow of the
2 answers
954 views
when you hold a hydrogen filled pipet bulb horizontally with its mouth about 1 cm from a falme while gently squeezing what would
3 answers
1,090 views
Why is it necessary to wait until the filter paper containing a compound is completely dry before weighing it? and how would it
1 answer
1,253 views
which reactant in the reaction of sodium carbonate and calcium chloride dihydrate is the limiting reactant if 1.00 gram of each
1 answer
1,193 views
when aqueous solutions of copper II nitrate and sodium phosphate are mixed, sodium nitrate and copper II phosphate are formed.
2 answers
4,105 views
the dutch came to america and established colonies near water. why?
1 answer
335 views
maria practiced for 40 minutes on sat. she practiced 10 minutes less in the morning the in the afternoon? how many minutes did
1 answer
431 views
maria practiced for 40 minutes on sat. she practiced 10 minutes less in the morning the in the afternoon? how many minutes did
1 answer
447 views
how to start an essay about dealing with conflict at work
1 answer
418 views
Solve the equation. Round to the nearest hundredth:
1. 1.59x+4.23=3.56x+2.12 2. -3(1.25-2.48x)=8.15+5.86
1 answer
494 views
Solve the equation. Round to the nearest hundredth:
1. 1.59x+4.23=3.56x+2.12 2. -3(1.25-2.48x)=8.15+5.86
1 answer
512 views
If the grating is not properly aligned, what are the consequences on the average angular displacement and wvelength reading?
2 answers
694 views
Why must the spectrometer be aligned each time a grating is replaced?
1 answer
527 views
what word families do the following belong to
woman ox goose mouse child foot thank you
1 answer
415 views
how is the s phase of the cell cycle measured?
0 answers
410 views
what did okonkwo do whenever he thought of his father's weakness and failure?
1 answer
654 views
how is a bridge nuilt, using mathematics??
0 answers
252 views
what is the importance of cell theory to the study of biology
0 answers
368 views
What were the stategies of the axis powers during WW11 used to build up their countries?
Also, Why did we use the atom bomb and
1 answer
546 views
a^-1 + b^-2 / a^-2 + b^-1
The answer is ab(b^2 + a) / b(b+a^2) How do I set that up and work the problem out? thanks for the help
1 answer
455 views
A train averaged 80 km/h for the first half of its trip. How fast must it travel for the second half of the trip in order to
1 answer
1,127 views
does the bubbles in coke disappear faster or does the bubbles in the sprite disppear faster?
1 answer
412 views
Is King Tut and Tutankhamen the same person?
Yes.
0 answers
530 views
i need to write 3 paragraphs wat should rita about how did i grown since september to this day can i have like opinion
what is a
0 answers
441 views
Pages
1
2
