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lulu
Questions and answers by visitors named
lulu
Questions (138)
If a cylinder with a 4 inch diameter and a 6 inch height holds 1 pound of oatmeal. How much oatmeal will a cylinder (similar)
6 answers
3,764 views
A farmer with 2000 meters of fencing wants to enclose a rectangular plot that borders on a straight highway. If the farmer does
4 answers
4,212 views
What volume of a 0.550 M solution of potassium hydroxide can be made with 14.3 g of potassium hydroxide? (Ignore significant
5 answers
4,446 views
A triangular pyramid has a base shaped like an equilateral triangle. The legs of the equilateral triangle are all 12 inches
6 answers
928 views
hi ppl does this look like an intresting book review
The book that I have recently been reading is called sense and sensibility
4 answers
562 views
why does a vast quantity of plankton exist?
4 answers
355 views
what line of longitude goes through Ghana?
2 answers
487 views
Suppose that you let the masses m1 and m2 slide (without adding the third mass).
a) What is the acceleration of the mass 25g?
1 answer
459 views
Suppose that you let the masses m1 and m2 slide (without adding the third mass).
a) What is the acceleration of the mass 25g?
2 answers
507 views
A sample consisting of 22.7 g of a nongaseous, unstable compound X is placed inside a metal cylinder with a radius of 8.0 cm,
1 answer
670 views
a 10-m uniform beam of weight 100N is supported by two ropes at the ends. If a 400N erson sits at 2.0 m from the left end of the
4 answers
4,812 views
a book weighs 6 n. when held at rest above your head the net force on the book is?
2 answers
783 views
a lever is 5 m long. The distance from the fulcrum to the weight to be lifted is 1 m. If a 3000 N rock is to be lifted, how much
4 answers
3,929 views
What condition or conditions are necessary for static equilibrium?
a) E Fx =0 b) E Fx=0, E Fy=0, E T=0 c) E T=0 d) E Fx=0, E Fy=0
1 answer
433 views
the inclined plane is 30* from the ground
a) What is the mechanical advantage of the inclined plane? b) A weight of 100N is to be
2 answers
589 views
A worker uses awhell and axle with inner radius of 20cm and outer of 50 cm to lift a 2400N object.
a) What is the mechanical
1 answer
471 views
can a mechanical advantage of a simple machine be les than 1? explain
1 answer
458 views
bandmanton skill and technique which required improvemant describe a performance
1 answer
262 views
what is an alkali and where do we use them
3 answers
313 views
For what reason did the French Academy of Science create the metric system
4 answers
648 views
how did the hunter get hurt while bending over to study some tracks?
5 answers
2,646 views
what was the direction and altitude for the moon in all of january 2010?
1 answer
287 views
How many molecules of hydrogen are produced if 13.05 g of Zn reacts with excess hydrochloric acid equation Zn plus HCL equals
4 answers
658 views
if a person jumps from the tenth flor 30m to a pool thatis 5m away from the building, with what initial horizontally velocity
1 answer
428 views
if a person jumps from the tenth flor 30m to a pool thatis 5m away from the building, with what initial horizontally velocity
1 answer
359 views
if a person jumps from the tenth flor 30m to a pool thatis 5m away from the building, with what initial horizontally velocity
1 answer
379 views
Bromobenzene, C6H5Br, and chlorobenzene, C6H5Cl, form essentially ideal solutions in all proportions. At 100°C, the equilibrium
6 answers
1,609 views
A 0.386g sample of a protein was dissolved in water and made up to a volume of 60mL at 21.0°C. At this temperature the osmotic
3 answers
860 views
You need to prepare 500.00 mL of a 0.15 M solution of nitric acid . Concentrated nitric acid comes from the chemical copmanies
3 answers
683 views
what volume of hydrochloric acid of density 1.18g cm3 and containing35.0% by mass must be allowed to react with zinc in order to
4 answers
950 views
the osmotic pressure of blood at 37 degrees is 7.56atm. what mass of glucose should be dissolved per litre of solution for an
2 answers
544 views
the osmotic pressure of blood at 37 degrees is 7.56atm. what mass of glucose should be dissolved per litre of solution for an
1 answer
483 views
the osmotic pressure of blood at 37 degrees is 7.56atm. what mass of glucose should be dissolved per litre of solution for an
5 answers
634 views
a solution of sulfur (2.560g) in naphthalene (100g) freezes 0.68K lower the freezing point of pure naphthalene (353.10K). for
4 answers
2,181 views
a 0.100m k2so4 solution has a freezing point of -0.43 degrees. what is the van hoff factors for this solution? kf=1.86degree/m?
0
4 answers
3,803 views
calculate the number of moles of solute present in 124.0g of a solution that is 6.45% glucose by mass.
4 answers
3,484 views
a hot-air balloon is seen in the sky simultaneously by two observers standing a t two different points on the ground. (the 2
2 answers
602 views
a hot-air balloon is seen in the sky simultaneously by two observers standing a t two different points on the ground. (the 2
4 answers
1,457 views
how do hydrogen bonds relate to the transfer off heat from the equator towards the poles of earth
1 answer
342 views
An executive committee of three is selected from a group of ten. Which expression best describes the number of combinations?
Thes
3 answers
467 views
An executive committee of three is selected from a group of ten. Which expression best describes the number of combinations?
Thes
1 answer
389 views
which system is under higher pressure, a column of mercury or a column of water
2 answers
776 views
Any powers not specifically granted to the federal goverment in the constitution
1 answer
383 views
can someone explin how blood clotting, immune response, allergic reaction, and hormone release interrelate. I have been
1 answer
416 views
simplify:
(x(1/2)(x^2+1)^-1/2(2x)-sqrtx^2+1)/(x^2)
1 answer
319 views
A biologisst reports a confidence interval of (3,7,5,5) when estimating the mean height ( incentimeters)
Of a sample of
1 answer
311 views
The number is even. Clue 2 The number is divisible by 3. Clue 3 The number is a multiple of 7? what is this?
1 answer
367 views
For the sequence an=6+5*(n-1),
its first term is__??__ ; its second term is__??__ ; its third term is__??__ ; its fourth term
1 answer
401 views
an open box is to be made from a piece of metal 16 by 30 inches by cutting out squares of equal size from the corners and
4 answers
7,756 views
1. |x^2-3x+3|=3
2. |x^2+2x+1|=-4 3. |3x+2|+3=0
1 answer
229 views
How do i subtract integers? Having trouble with problems like -14-(-5)-8
1 answer
326 views
An electron gun is a device that sets up an electric field between two plates. The electrons start on the negative plate and
1 answer
459 views
Justin paddles his kayak 6 miles upstream in 1,5 hours. he turns around and paddles downstream, the same distance, in only 1
2 answers
510 views
harriet and harry got jobs at the bumblo gum factory as bubblegum testers. for every bubble they blow they get 50 cents. harriet
3 answers
365 views
what is the volume of a cube with a base area of 76cm2 (squared) and height 8 cm?
1 answer
289 views
having problems with a "gerund" worksheet
1 answer
461 views
Compare the sensory pathways to the brain for gustatory and olfactory sensations.
1 answer
386 views
An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that travel 1530 m/s in seawater. How deep in
2 answers
512 views
When James drove to a concert last night, it took him 3 hours and 30 minutes. He averaged 60 miles an hour on the way there. How
1 answer
374 views
David drew a scale drawing of a table.The real table is 12 feet long.I measured out in inches that the height was 1/2 and the
2 answers
479 views
Kyle got in his car and started driving toward his grandmother's house. After driving for 1 hour and 47 minutes, Kyle took a
2 answers
579 views
Your muffler factory claims to manufacture mufflers with a lifespan of more than 10000 miles of usage. A consumer group tests
2 answers
505 views
Identify at least two actions of the leader yongle that benefited or
protected the people. Please help me or give me a website
1 answer
455 views
in the poem "road not taken" what has worn the roads about the same?
15 answers
747 views
what does hue mean?
a. personality b. color c. pattern d. debt
7 answers
524 views
Created a nutritional care plan for the client.
Included an evaluation of nutritional risk, listing of interventions, and
4 answers
615 views
prepare HR plan for the production and line department
1 answer
340 views
compare and contrast Rational (formal) model for strategy- emergent strategy
1 answer
448 views
Teddy Roosevelt kept a pet snake. What type of noun is snake.
4 answers
1,140 views
Whe Abe Lincoln was president, he had a turkey.
what type of pronoun is he?
1 answer
449 views
White House pets become almost as well known as their owners,
what type o verb is become?
7 answers
1,443 views
I am very sorry. What does the adverb very modify
3 answers
1,989 views
What steps take place during DNA replication
2 answers
475 views
what chemical changes are responsible for the color changes in the red cabbage lab?
2 answers
541 views
Explain the chemical changes that occur in the red cabbage lab that changes the color of the cabbage juice.
I know it has
2 answers
515 views
In the red cabbage lab, we just took the cabbage juice and in 5 separate cups mixed it with 5 different liquids, ex: coke, milk,
3 answers
923 views
Dr Bob,
Thanks for your help. Ihad googled for 3 hours before asking you. For future reference, if anyone asks this question
3 answers
512 views
What is the maximum amount of KCl that can disolve in 500 g of warer? The solubility of KCl is 34g/100 g H2O at 20 degrees C.
2 answers
562 views
What mass of Na2SO4 is needed to make 8.5L of 4.0M solution? Is the answer 7480 grams?
1 answer
424 views
Then the answer would be 4828 grams, right. I was using 2 molecules of SO4.
What is the mass of Na2SO4 needed to make 8.5L of 4.0
1 answer
393 views
Ould you please offer me some insight to this,
Calculate the hydrogen ion concentration (H+) for the aqueous solution in which
2 answers
583 views
Make the conversion
8.5 x10^2 cal to Calorie 4.5x10^-1kj to calories
4 answers
1,274 views
I have a regular octagon with a radius of 9.
I have split the 8 pie slices into right angles--leaving angles 90, 67.5, and 22.5.
3 answers
526 views
Calculate the energy needed to produce 10 moles of Cl2O7 using this balanced equation.
2Cl +70+ 100kCal==2ClO7 please explain
2 answers
606 views
What is the equilibrium constant for
2A + 3B (double arrow) =4C Is it (C)^c/ (A)^a (B)^b
1 answer
353 views
A 110g piece of copper is heated and the temperature changes from 38C to 172C. The heat absorbed is 686 cal. What is the
2 answers
503 views
Dr Bob
Could you check this please? Voltaic cell---cathode is positive, accepts electrons, reduced, anode is negative, gives up
2 answers
476 views
One more, confused
How can you tell by the periodic chart which ions of metals are most easily reduced or oxidized. A website or
2 answers
511 views
I know what the domino threty is. Question is, What 3 aspects of foreign policy do we see the domino theory reflected? I assume
2 answers
598 views
If I have a sample from doing a half lfe lab with m&ms, not timed, just pulling out decayed or m&ms with rhe m on top, how do I
1 answer
470 views
What particle is needed to complete this equation
14/7N+ _______=14/7C+ 1/1H I think it is a beta particle because of beta decay
3 answers
932 views
Confused, conflicting texts
when you are finding % error for density formula: experienced value-accepted value/ accepted value
3 answers
403 views
three fireworks are fired at the same time.
The first one is fired every 64 seconds, the second one is fired every 84 seconds and
2 answers
531 views
Check pls.
5.4 x 10^-2 by 2.5 x 10^-3 by 7.9 x10^-3 m volume = 107.44 x 10^-8 m^3
1 answer
290 views
Sig figs
33.067. 5 sig figs .0908. 3sig figs 1099. 4 .0087. 2 check pls
2 answers
666 views
5.4 x10^-2 by 2.5 x10^-3 by 7.9 x10^-3m
volume = 106.65 x10-8m^3 Check pls yesterday you said 106.65 x10^-6. If you add 2+3+3 you
1 answer
447 views
A cash register contains only ten dollar and fifty dollar bills. It contains three times as many ten dollar bills as fifty
4 answers
1,275 views
what is the smallest number that 54 can be multiplied by to give a perfect square?
4 answers
2,733 views
the Pythagorean theorem
a square + b square = c square a square + x square = 4 square how to find x square?
3 answers
416 views
When you mixand separate CaCO3 and SiO2 with acetic acid-vinegar, it is a chemical reaction. It bubbles and CO2 is produced.
3 answers
554 views
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