Monday

February 27, 2017
Total # Posts: 105,702

**Physics**

A man stands on a freely rotating platform, as shown, holding an exercise dumbbell in each hand. With outstretched arms, his angular speed is 1.5 rad/s. After he has pulled his arms in, as shown, his angular speed is 5 rad/s. What is the ratio of his final rotational KE to his...

*November 14, 2016*

**Math**

Andy has 5 tools he uses in his carpentry shop. 2 at the tools are hammers. What fraction of the tools are hammers?

*November 14, 2016*

**math**

salil travels 9km towards east then8km towards north and finally 7km towards east . how far away is he from his original place?

*November 14, 2016*

**math**

salil travels 9km towards east then8km towards north and finally 7km towards east . how far away is he from his original place?

*November 14, 2016*

**chemistry**

Zinc reacts with sulphur to form zinc sulphuric 16.2g.Sample of zinc is reacted with log of sulphur(Zn=65,S=32,o=16) A)Write a chemical reaction for the reaction b)Calculate the number of moles of zinc atoms that reacted. c)Number of moles of sulphur atoms that reacted

*November 14, 2016*

**Math**

scalene triangle

*November 14, 2016*

**Calculus**

-14/24 = dy/dt?

*November 13, 2016*

**Calculus**

A ladder 25 feet long is leaning against the wall of a house. The base of the ladder is pulled away from the wall at a rate of 2 feet per second. How fast is the top of the ladder moving down the wall when its base is 7 feet?

*November 13, 2016*

**Statistics**

John drives to work each morning and the trip takes an average of µ = 38 minutes. The distribution of driving times is approximately normal with a standard deviation of s = 5 minutes. For a randomly selected morning, what is the probability that John’s drive to work...

*November 13, 2016*

**Graphing Linear Equations and Inequalities**

Graph: y<2x

*November 13, 2016*

**interior decoration**

Which of these floor color treatments would tend to make a room look warmer and cozier? A. Floor color matching the ceiling B. Floor color the same color as the walls C. Floor color a deeper shade than the walls D. Floor covering in any pale color

*November 13, 2016*

**accounting**

performed accounting services for kirby collected 3,500 cash. how would this journal entry be posted to the general journal

*November 13, 2016*

**accounting**

purchased additional office supplies from office depot paid cash check #0002. $75 how would this journal entry be posted to the general journal

*November 13, 2016*

**Social studies**

This was useless

*November 13, 2016*

**MATH CLASS 6th grade**

855

*November 13, 2016*

**Physics**

Avergae Force=Impluse/time Impulse=m(vf-vi) so 65(1.6) Impulse=104 Average Force=104/.3 which is 346.67 N (This is another way) 2nd part is asking for velocity not acceleration

*November 13, 2016*

**Math**

What is the slope of (3,-5) and (-4,6)?

*November 13, 2016*

**Algebra**

You are working as a caterer and needs 20 gallons of lemonade for an upcoming event the bottles of lemonade you are purchasing are in liters How many liters will you need

*November 13, 2016*

**math**

a bag has 6 marbles in it each marble is either red blue or green what is the least number of marbles that you must pull out of the bag to be sure you have two marbles the same color?

*November 13, 2016*

**chemistry**

Calculate the no.of moles (a)3.011 X 10power 23 atoms of He (b)1.505 X 10power23 of Co2 (c)6.022 X 10power23 atoms of Na (hint :nis equal to N/No)

*November 13, 2016*

**Math**

A machine prints 1500 newspaper in45 min . How many will print in 2 hours ?

*November 12, 2016*

**Math Word Problems**

Bart, Lisa and Maggie went to the "Integers Only Really Expensive Fruit Stand" to buy some fruit. Bart bought 2 pomegranates and 1 kiwi for exactly $16. Lisa bought one pomegranate and 2 kiwis for exactly $11. Maggie bought 1 pomegranate and 1 kiwi. How much did ...

*November 12, 2016*

**Calculus**

A ladder a = 20 feet long is leaning against the wall of a house. The base of the ladder is pulled away from the wall at a rate of b = 4 feet/second. Consider the triangle formed by the side of the house, the ladder, and the ground. Find the rate at which the area of the ...

*November 12, 2016*

**maths sir steve plz reiny plz sir damon plz help**

express 1.1 in surd form pllllllz step

*November 12, 2016*

**maths sir steve plz reiny plz sir damon plz help**

express 1.1 in surd form pllllllz

*November 12, 2016*

**science**

Who is the father of computer?

*November 12, 2016*

**Algebra**

so, did you plug your number into the formula?

*November 12, 2016*

**Algebra**

An object is dropped from a bridge. Find the distance the object has fallen when the speed reaches 60ft/s. Use the equation v=square root 64d, where v is the speed in feet per second and d is the distance in feet

*November 12, 2016*

**Science**

In many country celcius scales are used give reasons

*November 12, 2016*

**maths**

mary is now three times as old as susan. Three years ago,the sum of their ages was 22. how old is susan now

*November 12, 2016*

**maths help plz&plz**

The 79 members of a spot club play at least one of the following games Tennis, Football and Volleyball. 19 play Football & Volleyball and 29 play Tennis & Volleyball, n play all the three games. 2n people , each play only one game. How many play Volleyball altogether.? Plzzzz ...

*November 12, 2016*

**PHYSICS**

To pull a car out of a ditch, one end of the rope POR is tied around a pillar at P and the other end is tied to the car at R. A force of 100N is applied to the Center O of the rope and perpendicular to PR. find the tensions in the rope if the angle POR = 150 degrees

*November 12, 2016*

**Geometry**

In Parallelogram PARK, angle P = (7x) degree angle A = (3x - 20) degree angle K = (5y - 10) degree. What is x + y?

*November 12, 2016*

**Physical Science**

The sample of potassium chloride is a saturated solution.

*November 12, 2016*

**cca**

recipe has six cups of flour to 1 1/10 of milk if you have two cups of flour how much milk will you use

*November 11, 2016*

**math**

What should be the result when the speed 45m/sec converted into km/hr

*November 11, 2016*

**maths sir damon help sir steve help sir reiny**

thanks sir but i already did that and i got 31 my problem is how to finalise it

*November 11, 2016*

**maths sir damon help sir steve help sir reiny**

The 79 members of a spot club play at least one of the following games Tennis, Football and Volleyball. 19 play Football & Volleyball and 29 play Tennis & Volleyball, n play all the three games. 2n people , each play only one game. How many play Volleyball altogether.? Plzzzz ...

*November 11, 2016*

**Science**

If 48 gram solute is present in 500 ml H2O2 solution,what will be its strength by volume and % w/v respectively?

*November 11, 2016*

**plane geometry**

how many feet of wood is needed to build a rectangular frame 10 inches by 11 inches

*November 11, 2016*

**Physics**

A hamster is pushed off a cliff by wind. Its mass is 0.040 kg and has a Potential Energy of 98 J. Find the kinetic energy...

*November 11, 2016*

**Chemistry**

Nitrogen (80 kPa), oxygen (21.0 kPa), carbon dioxide (0.03 kPa), and water vapor are the usual components of air. What is the partial pressure of water in mm Hg if the total atmospheric pressure in 1.00 atm?

*November 11, 2016*

**maths set**

The 79 members of a spot club play at least one of the following games Tennis, Football and Volleyball. 19 play Football & Volleyball and 29 play Tennis & Volleyball, n play all the three games. 2n people , each play only one game. How many play Volleyball altogether.? Plzzzz ...

*November 11, 2016*

**Science**

Apply P1-P2=½P(V1²-V2²) The answer is 59×10³. Sashank 9th Class....

*November 11, 2016*

**Math**

a rental companycharges a $45 membership fee,and $10 per hour to rent a car . write a linear function to model the relationship between the toatl cost and the numberof hours a car is rented

*November 10, 2016*

**8the grade math**

use a grid and lengths of line segments to give a geometric argument

*November 10, 2016*

**Math**

Suppose v varies directly as a g,and v=36 when g=4 find v when g=11

*November 10, 2016*

**Pyhsics**

Find the x and y components of the following 35 Ms at 57q from the x-axis

*November 10, 2016*

**Physics**

22.1

*November 10, 2016*

**math**

a recipe calls for 2 3/4 cups of milk and i want to make it 1 1/2 times smaller. How much milk do I need?

*November 10, 2016*

**Math**

5/2=x/10 cross multiplication 2x= 50 x=25

*November 10, 2016*

**Math**

It is hard to answer a question without any specific given values.

*November 10, 2016*

**Math**

Triangle ABC is an acute triangle. If all angles are measured to the hundredths,what is the smallest angle measurement?

*November 10, 2016*

**la**

tnx and im foreigh i speak polish and spanish

*November 10, 2016*

**science**

Explain which is more ionic NaF or LiF

*November 10, 2016*

**math**

Hi, I am of no help to you cause I does not know answer. Sorry, hope ya pass dah class

*November 10, 2016*

**Calculus**

we have the formula of the volume of a cube is V=s^3 <=> V+24=(s+2)^3 <=> s^3+24=(s+2)^3 and your answer is wrong because it just talks about the increasing 2 in./min not the whole edge.

*November 10, 2016*

**Calculus**

If the volume of a cube is increasing at 24 in^3/min and each edge is increasing at 2 in./min, what is the length of each side of the cube? Is this 2 in?

*November 10, 2016*

**Math**

The ratio of the side length is 2:3:4. The shortest side is 15 inches. What is the perimeter? Explain.

*November 10, 2016*

**Writing**

Joseph was reading a book in the library.

*November 10, 2016*

**maths sir steve help~reiny**

sin(?cosx)-cos(?sinx)=0 then find sin2x step plz

*November 10, 2016*

**Physics**

A 2.5m long string vibrates as a 100 Hz standing wave with nodes at 1m and 1.5m from one end of the string and no points in between the two.Which harmonic is this?work out

*November 10, 2016*

**Math**

When a number is a multiple of 6. What are the possible values for the ones digit?

*November 9, 2016*

**Help?? Chemistry?**

If it takes 20.0 mL of 1.200 M KOH to neutralize 60.0 mL of a given H3PO4 solution, what is the molarity of this phosphoric acid solution? I've figured out that the neutralization of phosphoric acid by the addition of potassium hydroxide in aqueous solution: H3PO4 + 3 KOH...

*November 9, 2016*

**Chemistry**

1.000 grams of KHP consumed 43.3 mL of KOH solution. What is the molarity of the KOH solution?

*November 9, 2016*

**Math**

ben paid $900 for a sofa. The price of the sofa Juana purchased was 2/3 the price that Ben paid. How much did Juana pay for her sofa?

*November 9, 2016*

**Physics**

Blocks with masses of 1 kilogram, kilogram, and 3 kilogram are lined up in a row on a frictionless table. All three are pushed forward by a 12 Newton Force applied to the 1 kilogram block. Draw a free body diagram of all 3 blocks. How much force does the 2 kilogram block ...

*November 9, 2016*

**Physics**

A brave but inadequate rugby player is being pushed backward by an opposing player who was exerting a force of 800 Newtons on him. The mass of the losing player plus the equipment is 90 kilograms and he is accelerating at 1.2 meters per second backward. How would I sketch the ...

*November 9, 2016*

**Physics**

A 1500 kilogram car skids to a hold on a wet road where the coefficient of kinetic friction is 0.5. How fast was the car traveling if it leaves 65 meter long skid marks?

*November 9, 2016*

**Physics**

For the object in the preceding problem, what magnitude torque is necessary to give the object an angular acceleration of 1.5 rad/s^2 a) along the x-axis? b) along the y-axis? c) along the z-axis (perpendicular to the page, passing through the origin)? Help please! Use the ...

*November 9, 2016*

**Science**

Explain where the sun and planets are located in relation to one another.

*November 9, 2016*

**Physics**

A clock has a second hand which rubs against the inside of the glass cover. If the frictional force between the glass cover and the tip of the hand is 0.0020 N and the length of the hand is 8 cm, what minimum torque must be supplied to the hand by the clock mechanism if the ...

*November 9, 2016*

**Math**

can you please separate your answer from the question? It's kind of confusing to me

*November 9, 2016*

**Math hard**

you need to find what x and y equal... This makes no sense to me. I'm trying to think but this is stumping me

*November 9, 2016*

**Math**

a committee of 5 has to be chosen from a group of 4 democrats and 5 republican staff how many different ways can the committee be selectedYou

*November 9, 2016*

**maths need help**

simplify without using calculator,table and surd sqrt(18)

*November 9, 2016*

**Math**

Tim has 5 times as many stamps as rylis.. They have 1038 stamps in all.. How many more stamps does Tim have than rylis?

*November 9, 2016*

**Chemistry**

anyone?

*November 9, 2016*

**Chemistry**

Calculate the new molarity of a 20.0 mL sample of 0.550 M CaCl2 solution that is diluted with water to make 250 mL of solution.

*November 9, 2016*

**maths**

6 pieces of wire each measure 9cm find the total length of the pieces in mm

*November 9, 2016*

**World History**

Thanks I got 100%

*November 9, 2016*

**Finance**

I believe the correct answer is C. If someone could please double heck for me. Trina gave her nephew Roy 100 shares of HLM Corporation stock that she purchased 6 months ago for $10,000. At the time of the gift, the fair market value of the stock was $12,000. Which of the ...

*November 9, 2016*

**Finance**

When Steve and Roslyn retire together they wish to receive $40,000 additional income (in the equivalent of today’s dollars) at the beginning of each year. They assume inflation will be 4% and they expect to realize an after tax return of 8%. Based on life expectancies, ...

*November 9, 2016*

**maths help**

no ms.sue that not what i want

*November 9, 2016*

**maths help plz help**

you cant use any of them ms.sue

*November 9, 2016*

**maths help**

root(18) simplify without using calculator&surd&table thanks step

*November 9, 2016*

**Math**

4 is B

*November 9, 2016*

**Math**

B A B C 100%

*November 9, 2016*

**Math**

5 is b

*November 9, 2016*

**algebra 1**

the length of a rectangle is equal to double the width find the length ll and the width w of the rectangle if the perimeter is 76cm

*November 9, 2016*

**PHYSIC**

A BALL THROWN WITH A SPEED OF 100M ATTAINS A HEIGHT OF 150 CALCULATE (A) THE TIME OF FLIGHT (B) RANGE (C) THE ANGLE

*November 9, 2016*

**literature**

thx, i hope i get 100%, i got another question to post

*November 9, 2016*

**Math**

10:16 5:8

*November 9, 2016*

**maths**

1/2 root+3 root-1

*November 9, 2016*

**Maths**

399.60

*November 8, 2016*

**Physics**

I still need help. Use the kinematic equation to find the acceleration and final angular speed. Step by step to get the answer with the numbers into the kinematic equation. Please I don't understand

*November 8, 2016*

**Physics**

An object initially rotating at an angular speed of 1.6 rad/sec turns through 30 revolutions during the time it experienced an angular acceleration of 0.32 rad/s^2 a) For how much time did the acceleration last? b) What was the final angular speed? Help please. Use the ...

*November 8, 2016*

**english**

A peer reviewer should comment on the essayâ€™s title.

*November 8, 2016*