Sunday
December 21, 2014

Posts by Paige


Total # Posts: 325

Physics
When throwing a ball, a pitcher exerts a torque of 150 N m for 0.15 seconds onto their arm before letting go of the ball. With an arm length of 0.9 m with inertia 0.6 kg m2, what is the speed of the ball just after it is released?
April 8, 2011

PHysics
The tip of a helicoptor rotor blade can reach speeds of roughly 300 mph (130 m/s). It takes about 30 seconds to get them up to speed and they have a typical radius of 20 feet (6 m). What is the average angular acceleration of the rotor blades as they get up to speed?
April 6, 2011

Math
29 tapes
March 30, 2011

Math
When you join Sally's Video Club, there is no rental charge for the first 2 tapes. Each tape then costs $2 to rent, but you can borrow one tape free as a bonus after renting 10 tapes. How many tapes would you be able to rent for $50?
March 30, 2011

math
What are 10 numbers that have a median of 21, a range of 20, and a mode of 10?
March 24, 2011

Physics
Two objects are mocing about so that their total momentum is zero. What can be said about their kinetic energy? Choose the most descriptive answer. a. the kinetic energy must be greater than zero b. the kinetic energy must be negative c. the kinetic energy must be equal to or ...
March 21, 2011

Physics
You are trying to package a 50g egg so that it won't break after you drop it from a height of 10 meters. You decide to use wood as a nice soft packaging to protect the egg. When the egg hits the ground, the wood "softens" the landing so that it takes 5 ...
March 21, 2011

Physics
Two objects are moving about so that their total momentum is zero. What can be said about their kinetic energy?
March 21, 2011

Physics
The game is called Ice Bocci. You play by sliding pucks across the ice into each other, sort of like marbles. One player slides the red puck straight into a stationary green puck. The red puck is sliding with a speed of 4 m/s and weighs twice as much as the green puck. What ...
March 20, 2011

Physics
You design a roller coaster that has an initial drop from some height "h" followed by a loop and then the ride comes to a stop. If the loop of a circle with a diameter of 50 m, what is the minimum height you would need to make sure nobody falls out? (Ignore friction)
March 4, 2011

Algebra 2 word problem
just checking to see if i have this problem correct Sammy can cut wood twice as fast as Joe. When they both work together, it takes them 4 hrs. how long would it take them to do the job alone? 4/x +4/x+2 = x^2+2 4x+4x+8= x^2+2 8x+8= x^2+2 x^2-6x-8=0 (x-4)(x+2) x=4 x=-2 since i...
March 2, 2011

checking to see if this is right
just checking to see if i have this problem correct Sammy can cut wood twice as fast as Joe. When they both work together, it takes them 4 hrs. how long would it take them to do the job alone? 4/x +4/x+2 = x^2+2 4x+4x+8= x^2+2 8x+8= x^2+2 x^2-6x-8=0 (x-4)(x+2) x=4 x=-2 since i...
March 2, 2011

Algebra 2 word problem
Just wanted to check to see if these are correct. Thank you, Please check if a greyhound bus travels 7mph slower than the express bus. the express bus travels 45 miles in the time it takes the greyhound bus to travel 38 miles. find the speed of each bus greyhound 38/x-7 ...
March 2, 2011

biology
what forms between the other two primary tissue layers
March 1, 2011

Algebra 2
Just checking to see if I got this right. Thanks, (3x^4--8x^2 -3x-3) / (x^2-3) 3x^2+1 remainder -3x
March 1, 2011

Organic Chemistry
what is the major product if 2,3,3-trimethylpentane was mixed with IBr?
March 1, 2011

Algebra 2
Just checking to see if I got this right. Thanks, (3x^4--8x^2 -3x-3) / (x^2-3) 3x^2+1 remainder -3x
March 1, 2011

Algebra 2
I am totally lost! (3x^4--8x^2 -3x-3) / (x^2-3)
March 1, 2011

Algebra 2
I have been trying to figure this problem out and I am completely lost. Could someone help guide me through it? (3x^4-0x^3-8x^2 -3x-3) / (x^2-3)
February 28, 2011

Physics
Which of the following is true? a. Conserved forces cannot do work b. Work can be performed on an object without moving it c. If the work is done by a conserved force, you do not need to know the path the object took d. To know the total work performed on an object you must ...
February 26, 2011

Physics
Suppose the Earth was only half the size it is now (half the mass and half the radius), what would "g" be?
February 24, 2011

Physics
The gravitational constant for Earth is gE = 9.8m/s2. The gravitational constant for the planet Mongo is 20 m/s2. If an object has a weight of 10 lbs on earth, what is its weight on Mongo?
February 21, 2011

Physics
The gravitational constant for Earth is gE = 9.8m/s2. The gravitational constant for the planet Mongo is 20 m/s2. If an object has a mass of 10 kg on earth, what is its mass on Mongo?
February 21, 2011

Physics
The gravitational force between two objects is proportional to what
February 21, 2011

Physics
A 5 kg block is being pulled to the right by a rope which is attached to a dangling 2 kg mass. The coefficient of kinetic friction between the mass & table is 0.1 What is the tension in the rope?
February 21, 2011

Physics
A block is sitting on a ramp. The block feels a force of friction sufficient to keep it from sliding down the ramp, which makes an angle of 30 degrees w.r.t. horizontal. What is the minimum coefficient of static friction between the block & ramp?
February 21, 2011

Physics
Three weights are attached to the corners of an equilateral triangle (side length 10 cm) made from stiff but very light wire. Measured from the bottom left corner, what is the center of mass of this object if M1 = 0.1 kg, M2 = 0.2 kg, and M3 = 0.3 kg?
February 21, 2011

Physics
A car travels around a circular track (4 km diameter). Its tires have frictional coefficients: mS = 0.3 & mK = 0.2. If the track is flat, how fast can the car travel around the track and still maintain control?
February 21, 2011

Physics
A lower block is being pulled to the right across a wooden table and it is 5kg and the block on top of it weighs 2 Kg. The friction between the table and the lower block is reduces the total acceleration to be 1.5 m/s2. Friction keeps the upper block attached to the lower one...
February 21, 2011

Physics
A 5 kg block is being pulled to the right with a 20 N force. This causes the block to slide along the table with an acceleration of 2 m/s2. What is the coefficient of kinetic friction between the block and table?
February 21, 2011

Physics
A 5 kg block is attached via a rope to a dangle 2kg mass. Consider the case without friction. What angle would the ramp be for the 5kg block to experience zero acceleration?
February 21, 2011

Trig
find the exact value of the expression using the provided information. Find Tan (S+T) given that cos s=1/3 with s in quad I and sin T= -1/2 with T in quad IV
February 18, 2011

Trig
tan 75 (show all work please)
February 18, 2011

Trig
No it is to find the exact value of the expression using the provided information. Find Tan (S+T) given that cos s=1/3 with s in quad I and sin T= -1/2 with T in quad IV
February 18, 2011

Trig
find (s+t) given that cos s=1/3 with s in quad I and sin T=-1/2 with t in quad IV
February 18, 2011

chemistry
25.5 degrees C
February 13, 2011

Pre algebra
-3(4x+3)+4(6X+1)=43 Need to solve
January 23, 2011

algebra
How do I find a the surface area of a can that has a diameter of 4 inches and a height of 3 inches?
January 19, 2011

Math
Solve. 3p-1=5(p-1)-2(7-2p)
January 17, 2011

geometry
triangle
January 13, 2011

geometry
If AC = 20 centimeters, and BC = 16 centimeters, what does AB equal?
January 13, 2011

math analysis
how do i do cosecant x= 30/150? and how do i do cosecant x= 1500/9000
January 9, 2011

7th Grade
z + 5/7 = 3 z = 3 - 5/7 z= 2&2/7
January 9, 2011

Math
3 x 25=75 P 75 -- -- =62.5% 100 120 cross multiply. P x 120= 120P 100 x 75=7500 7500/120=62.5%
December 31, 2010

Chemistry
Identify an inert element that is used in electrical discharge tubes.
December 8, 2010

English
Choose the correct word to complete each sentence. 1. Despite wanting to pass the exam, Julia just couldn't get down to revising. She seemed to have a mental ___ about it. a. brick b. gap c. block d. space 2. When the counsellor listened to George's problems, her non-...
December 7, 2010

Maths - Probability
Tickets numbered 1 to 1000 were sold in a raffle for which there was one prize. Mr Kahn bought all the tickets containing at least one '3' because '3' was his lucky number. What was the probability of Mr Kahn winning?
December 4, 2010

2nd grade
what is the antonym of the word smooth
November 28, 2010

College physics
A toddler is on a playground swing. When she is right in the middle going forward (to the right), then ... a).her tangential acceleration is maximal to the right. b) her tangential acceleration is zero. c) her tangential acceleration is maximal to the left. d) her kinetic ...
November 21, 2010

english
Need ideas for a 7th grade research paper. I like gymnastics and dance. any ideas?
November 3, 2010

accounting
cash balance per books 6781.50
October 25, 2010

Science
What is the power of 1,000 newtons, 3 meters and 60 seconds?
October 25, 2010

College Physics
So would I divide the problem by wf?
October 22, 2010

College Physics
A freely rotating merry-go-round on a playground has a moment of inertia of 312 kgm2 and a radius of R=2.5 m. It is rotating with ω0=2.8 rad/s when a kid of mass 45 kg is standing on its outer rim. Neglecting friction, what is going to be the angular velocity of the merry...
October 22, 2010

geometry
Q is the midpoint of PR. PQ = 3x - 5 and QR = x + 17. What is the value of x?
September 14, 2010

8th grade
graph each realation on cordanant system
August 30, 2010

physics
10^14. Divide area of pinhead by area of atom
August 26, 2010

Earth Space Science
What type of motion would have to occur to move or displace the fixed color lines produced by a gas like helium or hydrogen toward the 400 nanometer mark on the spectrum scale?
May 4, 2010

physics
If you shout across a canyon and hear an echo 3.6 s later, how wide is the canyon?
April 27, 2010

accounting
This is not enough information. You need another number. Either the original price or a discounted price or something???
April 25, 2010

fractions and decimals
15/86 is the fraction then divide 15 by 86 and you get 0.1744 that would be one option for row one. I'm not sure if you can make improper fractions but if you can it could also be 86/15 as a fraction then divide 86 by 15 5.7333 repeater. I am assuming you could arrange the...
April 25, 2010

physics
if a super dense material with a refractive index of 1.76 x10^7 what is the speed of light in this material
April 14, 2010

math
Mathematically, why is a manhole cover round?
March 21, 2010

world history
Under whose reign did the Persian empire become the greatest military power of the ancient world?
March 14, 2010

chemistry
What is the formula used to solve the problem: How many milliliters of 1.171 M HCl are required to react with 7.69 grams of CaCO3 ?
March 4, 2010

Algebra 2
Y=2/3-1 y=-x+4
February 2, 2010

algebra
if u cut any size circle 5times , what is the greatest amount of pieces i can get?
January 6, 2010

math
hi, i am in forth grade i need to know what factors means. now for my home work. can you please respond and in a way i can under stand.
October 29, 2009

3 grade
what i dont get your question and your in 3rd grade and they ask you this
October 29, 2009

Algebra II
The answer for (7+5i)+(-4+2i) is 3+7i. But I got -38-6i. I combined -28 and 10i^2 to get -38, and I combined -20i and 14i to get -6il So all together this was -28+-6i+-10, which resulted in -38-6i. Could you please tell me where I went wrong?
October 15, 2009

Chemistry
What are the characteristics of a perfect flame for a bunsen burner??
October 13, 2009

Biology
What is the role of oxygen in aerobic respiration?
October 12, 2009

AP World History
How would you compare and contrast life in foraging societies with life in agricultural societies after the Agricultural Revolutions?
August 4, 2009

health
The answer is D. The person who creates the data in the record. It wouldn't be the patient
April 18, 2009

biology
why are the processes of transcription necessary for life?
April 15, 2009

biology
why are the processes of transcription necessary for life?
April 15, 2009

4th grade
what is prime and composite 13,37,25,117208,67
January 30, 2009

Chemistry
Calculate the volume of 0.6M HNO3 necessary to neutralize 28.55 cm3 of 0.45M KOH. please show work and detail.
January 15, 2009

Chemistry
What volume of 0.5M HNO3 is required to neutralize 25 cm3 of a 0.2M NaOH solution? please show work and detail.
January 15, 2009

Chemistry-TITRATION
A titration of 15.0 cm3 of household ammonia, NH3, required 38.57 cm3 of 0.78M HCl. Calculate the molarity of the ammonia. please show work and detail.
January 15, 2009

Chemistry
Determine wether the following acids are strong or weak? NOTE: all numbers in the chemical compounds below are subscripts belonging to the element before it, NOT COEFFICIENTS. a.)HCl b.)H2SO3 c.)HNO2 d.)H3PO2 e.)HNO4 f.)H2SO5 g.)HI
January 14, 2009

math
what relation is a doorstep to a doormat
January 11, 2009

year 8 art
I've got loads of art homework and there is one bit i'm struggling with i have to use a digital camera take a picture of a household object then distort the image using a graphics package on a computar in four different ways and im finding it hard to understand. Thanks
December 29, 2008

chemistry
What is 1.384 kg multiplied by 5.4 square meters?
October 19, 2008

Chemistry
A sheet of aluminum foil has a total area of 1.000 ft squared and a mass of 3.636 grams. What is the thickness of the foil in millimeters? (Density of Aluminum is 2.699 grams/cm cubed.)
September 12, 2008

7th grade math
How do you convert 5/16 to a decimal??
September 12, 2008

Math
Write the standard form of the equation of the circle with center 2,-3 and radius 4
June 16, 2008

chemistry
Calculate the theoretical pH after 2.50 mL and 9.50 mL of NaOH has been added in both the titration of HCl and of HC2H3O2. Indicate if the volume of NaOH is before or after the equivalence point.
May 9, 2008

maths
11/3058
April 27, 2008

math
26+4*(15-4)
April 20, 2008

math
4+1-2+3
April 20, 2008

Social Studies
What was the name of the fake government of france and who led it? Thanks so much. ^-^
April 19, 2008

pre-algerbra
-14y+12(x+y)-12x
April 7, 2008

physics
A student lifts a 4.7-kg box from the her desk, which is 0.9-m high, to a locker that is 4.1-m high. What is the bags energy relative to the desk?
April 3, 2008

Physic
What determines whether an object is a net emitter or a net absorber of radiant energy? Wood is a better insulator than glass. Yet fiberglass is commonly used as an insulator in wooden buildings. Explain.
January 30, 2008

English
What is the action verb and linking verb in this sentence: The day was warm and sunny.
January 24, 2008

English
What is the action verb and linking verb in the sentence: The day was warm and sunny.
January 23, 2008

science
a vascular plant
January 10, 2008

Sociology
i think it helps you speak better
January 10, 2008

Science
i need one more...
January 10, 2008

Pages: <<Prev | 1 | 2 | 3 | 4 | Next>>

Search
Members