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2011
August

Questions Asked on August 18, 2011

A small weather rocket weighs 14.7 N. The rocket is carried up by a balloon. The rocket isreleased from the balloon and fired,
1. 1 answer
2. asked by Anonymous
3. 5,196 views
A certain sports car accelerates from 0 to 60 mph in 9.0 s (average acceleration = 3.0m/s2). The mass of the car is 1354 kg. The
1. 4 answers
2. asked by Anonymous
3. 4,614 views
A rubber ball weighs 49 N. What is the acceleration of the ball if an upward force of 69 N isapplied?
1. 3 answers
2. asked by Anonymous
3. 3,863 views
A person on a trampoline bounces straight upward with an initial speed of 4.7m/s . What is the magnitude of the person's speed
1. 1 answer
2. asked by Vova
3. 3,354 views
I have to use the terms hypothesis, controlled experiment, and variable in the same sentence.
1. 8 answers
2. asked by Hayley
3. 2,636 views
A bus accelerates at 1.4 m/s2 from rest for 10 s. It then travels at constant speed for 26 s, after which it slows to a stop
1. 1 answer
2. asked by Laura
3. 2,468 views
Which best describes the physical change of an aluminum soda can after its crushed?A change in the mass of can B change in
1. 2 answers
2. asked by Chriese
3. 2,411 views
Three charges q1, q2 and q3 lie along the x-axis. Charge q1=2.5 micro coulomb is at x= 1.5 m, while charge q2= 6.3 micro coulomb
1. 4 answers
2. asked by Hilary
3. 2,197 views
what is correct barb-and i or barb and me
1. 3 answers
2. asked by janice
3. 2,187 views
The coefficient of sliding friction between rubber tires and wet pavement is 0.50. Thebrakes are applied to a 750 kg car
1. 2 answers
2. asked by Anonymous
3. 1,972 views
Two trains face each other on adjacent tracks. They are initially at rest, and their front ends are 50 m apart. The train on the
1. 1 answer
2. asked by Laura
3. 1,969 views
The space shuttle has a mass of 2.0 × 106 kg. At lift-off the engines generate an upwardforce of 30 × 106 N. a. What is the
1. 2 answers
2. asked by Anonymous
3. 1,860 views
1 g alloy of Cu and Zn reacted with excess of H2SO4 gives 60 ml of H2 at STP. What is the % of Zn in the alloy?
1. 1 answer
2. asked by abhijit
3. 1,829 views
A whale swims due east for a distance of 7.5 km, turns around and goes due west for 2.5 km, and finally turns around again and
1. 1 answer
2. asked by Pay
3. 1,771 views
Given: 2N2(g) +O(2) --> 2N2O(g) Kc =1.2x10^(-35)N2O4(g) --> 2NO2(g) Kc = 4.6x10^(-3) 1/2N2(g) + O2(g) --> NO2(g) Kc= 4.1x10^(-9)
1. 1 answer
2. asked by Matt
3. 1,656 views
2. The Sugar Sweet Company is going to transport its sugar to market. It will cost $4200 to rent trucks, and it will cost an
1. 1 answer
2. asked by Daniel
3. 1,471 views
Two small conducting spheres are identical except that sphere x has a charge of -10 micro coulombs and sphere y has a charge of
1. 1 answer
2. asked by Troy
3. 1,291 views
Person A opens an IRA at age 25, contributes $2000 per year for 10 years, but makes no additional contributionsthereafter.
1. 2 answers
2. asked by fazilah
3. 1,271 views
A 49 foot pipe is cut into two pieces. If one piece has a length of y feet, what is the length, in feet, of the other piece?
1. 2 answers
2. asked by danielle
3. 1,214 views
the fact that many americans want the convenience of driving gas-guzzling trucks and sport utility vehicles that contribute
1. 9 answers
2. asked by Anonymous
3. 1,186 views
Two trains face each other on adjacent tracks. They are initially at rest, and their front ends are 50 m apart. The train on the
1. 1 answer
2. asked by laura
3. 1,136 views
Two trains face each other on adjacent tracks. They are initially at rest, and their front ends are 50 m apart. The train on the
1. 1 answer
2. asked by laura
3. 1,131 views
a body travels half of its total path in the last second of its free fall from rest.what is the duration of fall .you have
1. 0 answers
2. asked by pavatharani
3. 1,123 views
two circles c1 and c2 meet at the points A and B. CD is a common tangent to these circles where C and D lie on the circumference
1. 0 answers
2. asked by JJ
3. 1,120 views
Why is the Earth's atmosphere rich in oxygen and poor in carbon dioxide?
1. 1 answer
2. asked by NAncy
3. 1,054 views
If the tires of the car in previous problem didn’t skid, the coefficient of friction would havebeen 0.70. Would the force of
1. 0 answers
2. asked by Anonymous
3. 1,034 views
1. What are the social responsibilities of news media?
1. 1 answer
2. asked by Anonymous
3. 999 views
All of my life I have gotten a C average in math. I have been trying to set a goal to make above a C in math. I don't know why I
1. 6 answers
2. asked by Aquion
3. 979 views
a.A person with skin area of 3 m2 is in a room of still air at 22 C.i.Calculate the rate of conduction of heat loss in watts if
1. 3 answers
2. asked by KAIT
3. 976 views
A motorcycle officer hidden at an intersection observes a car driven by an oblivious driver who ignores a stop sign and
1. 1 answer
2. asked by laura
3. 963 views
The base of a parallelogram is 6 times itsheight if the base is cut in half,the new area is what percentage of the original
1. 1 answer
2. asked by kyra
3. 952 views
A passenger train is traveling at 30 m/s when the engineer sees a freight train 357 m ahead of his train traveling in the same
1. 1 answer
2. asked by laura
3. 862 views
I need this answer in Scientific Notation please help7.74x10^-4
1. 1 answer
2. asked by Cj
3. 860 views
Can someone please go over the steps to solve this problem? I know I need to find where the tugboat intersects the radar but I'm
1. 2 answers
2. asked by Lily
3. 842 views
i grew in a cave but i am not alive.What am i
1. 2 answers
2. asked by Gabby cornieliues
3. 835 views
since segment KL and segment LM are congruent, set up an equation to solve for x. What is the value of x?K (5x-4) L (3x+12) M
1. 1 answer
2. asked by morgan
3. 831 views
The driver notices that the rain leaves no trace on the back windshield of his car slanted at a 60°angle to the horizontal when
1. 1 answer
2. asked by Anonymous
3. 830 views
There are 20 red and blue pens in abox. There are 3times as many blue pens as red pens? How many red pens are there? How many
1. 5 answers
2. asked by MIKI
3. 810 views
There are 36 buttons in a jar. There are 3 times as many red buttons as white. 1. how many white buttons are there? 2. how many
1. 8 answers
2. asked by LIDIA
3. 803 views
I'm studying infinite series and am really struggling with memorizing all the tests for convergence in my book, there's like 10
1. 1 answer
2. asked by Lee
3. 796 views
eliminate the parameter and write a rectangular equation forx=(t^2)+3 y=2t
1. 1 answer
2. asked by girl
3. 773 views
please help me on my exam. to make good answer enough.please correct my english and answer if it is relevant to the question.
1. 0 answers
2. asked by jessie
3. 760 views
i can not figure out how to write the complex number in rectangular form the question is 4(cos 5Pie/6 + i sin 5 pie/6)
1. 2 answers
2. asked by fred
3. 719 views
Can you check these questions for me?1. Add: (3x^4-x+2)+(9x^5-x^2+x) 9x^5+3x^4-x^2+2 2. Add: (4x^3-2x^2+x+4)+(9-x^5-x^2+4x)
1. 1 answer
2. asked by Chandler
3. 713 views
Which is steeper, y = 4x+ 5 or y = - 5x - 2 ?
1. 1 answer
2. asked by mely
3. 702 views
a cube is expanding and its volume is increasing at the rate 96 cubic centimetres/second when the side is 4 cm.Find the rate at
1. 2 answers
2. asked by -Minx-
3. 688 views
HYPOTHETICAL EXPERIMENT:You, as an eager young behavioral scientist, have noted that many people don't wash their hands when
1. 7 answers
2. asked by Jkim
3. 671 views
Two objects are thrown simultaneously from the same height at 45° angles to the vertical with aspeed of 20 m per second; one
1. 1 answer
2. asked by Anonymous
3. 651 views
A spherical balloon is being inflated and its radius is changing at the rate of 2m/minute. When the radius is 4m, find the rate
1. 1 answer
2. asked by -Minx-
3. 650 views
Budgeting Concepts Paper (10 points). Prepare a 1,050-1,750-word paper in which you compare and contrast two types of operating
1. 1 answer
2. asked by Anonymous
3. 634 views
1,8,27 what are the next 3 numbers? What is the pattern?
1. 1 answer
2. asked by steve
3. 620 views
The temperature at 3:00 am was -17 f by noon the temperture was -17.8 f at what time was it the coldest?
1. 2 answers
2. asked by brittany
3. 618 views
A person on a trampoline bounces straight upward with an initial speed of 4.7m/s . What is the magnitude of the person's speed
1. 1 answer
2. asked by Vova
3. 607 views
is anyone can help to correct my english..thank you....please correct if it relevant to the question of my exination..thanks and
1. 1 answer
2. asked by jessie
3. 607 views
Container A is sealed (not open to the atmosphere) filled with water with an unlimited width and depth. Container A consists of
1. 0 answers
2. asked by Anonymous
3. 590 views
I'm doing an independent study plan for music and I really need some suggestions for choosing the right subject that will be fun
1. 10 answers
2. asked by Beethoven
3. 588 views
a.A person with skin area of 3 m2 is in a room of still air at 22 C.i.Calculate the rate of conduction of heat loss in watts if
1. 1 answer
2. asked by KAIT
3. 586 views
A bucket contains 7 red, 3 blue, 2 black and 1 yellow ball of the same size.A random selection of 5 balls is taken from the
1. 1 answer
2. asked by Mahalakshmi
3. 579 views
Prepare a comprehensive directory (i.e. scrap book made of newspaper) of relatedresources with current news, information on
1. 2 answers
2. asked by stefeena
3. 579 views
A Carnot type engine has a reservoir of 1000 K with an efficiency of 50%. Find the temperature of the sink.
1. 1 answer
2. asked by KAIT
3. 574 views
The base of a parallelogram is 6 times itsheight if the base is cut in half,the new area is what percentage of the original
1. 1 answer
2. asked by kyra
3. 571 views
A person on a trampoline bounces straight upward with an initial speed of 4.7m/s . What is the magnitude of the person's speed
1. 1 answer
2. asked by Vova
3. 567 views
A 10G bullet is short from a 5kg gun with a velocity of 400m/s.What is the speed of recoil of the gun?
1. 3 answers
2. asked by sachin
3. 567 views
A plane is flying in a straight line at an unchanging height and unchanging speed. The pilot mustdrop an object onto a target in
1. 0 answers
2. asked by Anonymous
3. 564 views
Read and follow the directions I have already posted for you. Those are your first steps.http://www.jiskha.com/display.cgi?id=13
1. 0 answers
2. asked by Writeacher
3. 564 views
The last car unfastens from a moving train. The train continues to move at the same constantspeed. What is the ratio of the
1. 0 answers
2. asked by Anonymous
3. 562 views
simplify 64/76
1. 1 answer
2. asked by Madison
3. 562 views
write an expression to represent each total and then simplify it cost of 2 pens and 3 notebooks the note books costs 179 each nd
1. 2 answers
2. asked by adrian
3. 554 views
I need help with BIS 155 Data Analysis with spreadsheets final exam. Total of 5 essay questions. Must write a total of 250 words
1. 1 answer
2. asked by Jacqueline
3. 541 views
One of the most hotly debated topics of national concern is gun control. In a complete essay, compose a proposal to either ban
1. 1 answer
2. asked by Tatianna
3. 539 views
Budgeting Concepts Paper (10 points). Prepare a 1,050-1,750-word paper in which you compare and contrast two types of operating
1. 1 answer
2. asked by Anonymous
3. 533 views
a. An engine has a reservoir of 8000 J and has a sink of 1000 J.i. Find the work generated by the engine.
1. 2 answers
2. asked by KAIT
3. 531 views
a manufacture of drinks, wants to add packaged fruit juices to its existing product line. the manufacturer needs to make some
1. 1 answer
2. asked by Anonymous
3. 526 views
A car travels directly northwards at 10m/s.it then accelarates at 2m/s^2 over a distance of 200m.calculate the car's velocity
1. 2 answers
2. asked by Welheminah
3. 519 views
This is from the book Nothing but the truth by Avi. The question is: After reading the memo in chapter 6, what do you think is
1. 1 answer
2. asked by BritBrit
3. 516 views
What word can I use to replace "fall victim to." Give me some examples please. I'm stumped.
1. 5 answers
2. asked by Sally
3. 516 views
1. Make a scatterplot of the data in the viewing rectanlge[19030,2010,10]by[0,6,1].2. Find the quadratic function given by
1. 1 answer
2. asked by Porsha
3. 505 views
I'm not clear on the purpose of a decision grid. I know it's most likely common sense but is it just used for considering your
1. 3 answers
2. asked by LHS
3. 504 views
select the correct sequence of nerves and nervous structure that would allow you to feel someone tickling the back of your leg?
1. 1 answer
2. asked by Anonymous
3. 502 views
The rate of transmission r in a telephone cable is obseed to be approximately r(x)=x^2*ln(1/x, where x is the ratio of the
1. 3 answers
2. asked by Callie
3. 501 views
what does it mean to say alpha is set at 0.5
1. 1 answer
2. asked by nicole
3. 491 views
How do you draw an atom?
1. 3 answers
2. asked by Bryce
3. 475 views
Water is shooting at the same speed out of the three tubes placed on the ground at different anglesof 60°, 45°, and 30° to
1. 0 answers
2. asked by Anonymous
3. 474 views
Evaluate write in simplest formY - for y = -6 and z = -20 z
1. 1 answer
2. asked by brittany
3. 470 views
(x+y)^3 expand
1. 3 answers
2. asked by star
3. 466 views
Is the definition of thinking at the margin basically saying if you don't have any specific numbers or the use of the one
1. 0 answers
2. asked by CPut
3. 465 views
Considering that a researcher can test at the <p = .05 (95%), p = .01 (99%), or p = .001 (99.9%) level for statistical
1. 1 answer
2. asked by Anonymous
3. 463 views
how do you find out what century a certain year is in?
1. 2 answers
2. asked by aleesia
3. 461 views
which of the following are components of a proposed marketing plan?a.target market, costs, expected sales results b. website
1. 1 answer
2. asked by Anonymous
3. 458 views
HELP! can you check and help me with some of these?1. y + 8 = -15 My answer: -7 2.3x = 27 My answer: 9 3. 5 + a = -19 My
1. 7 answers
2. asked by Bryce
3. 454 views
A wagon with a width of 2.4 m, moving at a speed of 15 m per second, was shot through by a bulletperpendicular to the movement
1. 3 answers
2. asked by Mia
3. 449 views
find y'(x) if x^y=y^x
1. 2 answers
2. asked by Hailey
3. 447 views
In 10-15 lines critically discuss 5 ways in which HIV AND AIDS problem impacts on the community.provide relevent sources to
1. 2 answers
2. asked by Florance
3. 447 views
Why is unnecessary to measure precisely 25 ml of unknown acid into the beaker?
1. 0 answers
2. asked by Veronica
3. 444 views
How do educational philosophies and theories affect the statement of purposes and goals, curriculum, instruction, and values?
1. 1 answer
2. asked by Anonymous
3. 440 views
a 4 digit number my 2 nd digitis twice my 3 digit the sum of all my digits is 3 times greater than my last digit the productof
1. 1 answer
2. asked by richard
3. 440 views
if i bought a car for $18,500 and price was 35% off what was original price and how do I do the math
1. 1 answer
2. asked by ray
3. 438 views
measurements of height and weight provide useful information about:a.intellegience b.overall health status c.adult shape
1. 1 answer
2. asked by sue
3. 435 views
What causes the calcium and ATP concentrations to decrease?
1. 0 answers
2. asked by meme
3. 423 views
Show that the tangent line to the curve y=x^3 at the point x=a also hits the curve at the point x=-2a.Any help?! PLEASE!
1. 3 answers
2. asked by Allison
3. 414 views

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