Monday

May 2, 2016
Total # Posts: 154

**physics**

an inclined plane, which slopes at 37degree is used to raise a 10 kg object to a heghit of 4m if the efficency is 80% determine a,the load (t@ke sin 37=0.6,cos 37 =0.8) b,the cofficent of kinetic friction c,the effort force
*April 5, 2016*

**Physics**

A 60kg man standing on a stationary 40kg boat throws a 0.2kg ball with a velocity of m/s. Assuming there is no friction between the man and the boat, what is the speed of the boat after the man throws the ball?
*March 2, 2016*

**Math**

The espionage is use only an associative property to rewrite the expression: (mq) * n My teacher says the correct answer is m * (qn) but could the answer also be (nm) * q or m * (mq) or q * (mn)?
*February 17, 2016*

**Geometry**

I'm a little confused about what a Pythagorean Triple is. As long as your two legs are both whole numbers, isn't every one a triple?
*February 11, 2016*

**Math**

Thank you.
*February 11, 2016*

**Math**

I just want to make sure I have done this correctly. (10a^3b)(3ab^2c^2) = 30a^4b^3c^2
*February 11, 2016*

**REINY -- Math - Could Someone Check My Work?**

Reiny, thanks but the original problem isn't (-6x^6)(6x^6) The original problem is (-6x^6)(-6x^2x^6) So I thought I would have to simplify inside the second parentheses first to make that (-6x^8) by adding the exponents (2 + 6) Then I have (-6x^6)(-6x^8) I then multiply -6...
*February 10, 2016*

**Math - Could Someone Check My Work?**

6x^6 ∙ 6x^6 = 36^12 no, keep the base and add the exponents = 6^12 or multiply the bases and keep the same exponent = 36^6 Why would this be? I thought I had to multiply the 6 in each and then add the exponents in each? ((6x^7)/(2x^2 ))^2 = 9x^45??????? NO = (3x^5)^2 = ...
*February 10, 2016*

**Math - Could Someone Check My Work? **

Could someone check my work please? Thank you! (14a^2b)(2ab^2c) = 28a^3b^3c (a^25)^7 = a^125 6x^6 ∙ 6x^6 = 36^12 (2x^2)^3 = 8x^6 (-2)0 = 1 30x^20/(6x^9 = 5x^11 4x^5 ∙ 6x^6 = 24x^11 (2x^4)^3 = 8x^12 -4^2 = -16 -(193)^0 = -1 (-193)0 = 1 (-5)2 = 25 ((6x^7)/(2x^2 ))^2...
*February 10, 2016*

**math**

What is the difference between B as in the longer base of a trapezoid and b as in base in terms of geometry?
*February 10, 2016*

**math**

Is -4 to the zero power still 1 since all numbers to the zero power are 1 or is it negative 1?
*February 9, 2016*

**physics**

An electric field of magnitude 3640 N/C is applied along the x axis. Calculate the electric flux through a rectangular plane 0.166 m wide and 0.72 m long if the plane is parallel to the yz plane. Answer in units of N · m2 /C. 435.05 N. m2/C 002 (part 2 of 3) 10.0 points...
*February 9, 2016*

**Math**

What I'm asking about is actually about the decrease in the second chart. If I divide top to bottom (80.2/71.4, 71.4/63.5, etc), I get a different result than if I divide bottom to top (71.4/80.2, 63.5/71.4 and then subtract from 1.00). If I do the top to bottom way I get ...
*February 4, 2016*

**Math **

I have the following chart that I am supposed to find the percent increase in one step. The directions specifically say not to use a two step method. 10.5 12.5 14.9 17.7 21.1 25.1 So I divide 12.5 by 10.5, 14.9 by 12.5, etc. When I do this (and round) I get about 19% increase ...
*February 4, 2016*

**Math**

Does linear growth have to add the exact same amount each period, so a constant amount each time such as 500, 500, 500, etc, or does it just have to be close each period, such as 125, 137, 145, 160, etc?
*February 4, 2016*

**Math**

I have the following chart that I am supposed to find the percent increase in one step. The directions specifically say not to use a two step method. 10.5 12.5 14.9 17.7 21.1 25.1 So I divide 12.5 by 10.5, 14.9 by 12.5, etc. When I do this (and round) I get about 19% increase ...
*February 4, 2016*

**Math**

Does linear growth have to add the exact same amount, so a constant amount each time such as 500, 500, 500, etc, or does it just have to be close, such as 125, 137, 145, 160, etc?
*February 4, 2016*

**math**

Does linear growth have to add the exact same amount, so a constant amount, each time or does it just have to be close?
*February 3, 2016*

**Math**

I have the following chart that I am supposed to find the percent increase in one step, not using a two step method. 10.5 12.5 14.9 17.7 21.1 25.1 When I do this (and round) I get about 19% increase for each one. (we are supposed to round. Then I have another chart that we are...
*February 3, 2016*

**Math**

I have a triangle with equal sides. Then a s cons triangle is put in the middle so I have four triangles. Triangles are continued to be put instead so I have more and more triangles. As more triangles are added in the same space, the size of them are getting smaller. Could you...
*February 3, 2016*

**physics**

A positive charge of 0.0001258 C experiences a force of 0.3 N when located at a certain point. What is the electric field magnitude at that point? Answer in units of N/C.
*February 3, 2016*

**physics**

Three point charges, two positive and one negative, each having a magnitude of 30 µC are placed at the vertices of an equilateral triangle (43 cm on a side). What is the magnitude of the electrostatic force on one of the positive charges? The value of the Coulomb ...
*February 3, 2016*

**physics**

Find the distance between the two electrons. The value of the Coulomb constant is 8.98755 × 109 N · m2 /C 2 and the acceleration of gravity is 9.81 m/s 2 . 1. 0.507424 m 2. 50.7424 m 3. 5.07424 km 4. 5.07424 m 5. 5.07424 cm can anybody help me please
*February 2, 2016*

**Pre-calculus**

Hooke's Law states that the distance a spring will stretch beyond its natural length varies directly with the force applied to the spring. A force of 12 pounds is needed to stretch a certain spring 9 inches beyond its natural length. Find a formula that models the length a...
*January 28, 2016*

**physics**

How much positive charge is in 0.8 kg of neon? The atomic weight (20.1797 g) of neon contains Avogadro’s number of atoms, with each atom having 10 protons and 10 electrons. The elemental charge is 1.602 × 10−19 C and Avogadro’s number is 6.023 × ...
*January 28, 2016*

**Math**

Hooke's Law states that the distance a spring will stretch beyond its natural length varies directly with the force applied to the spring. A force of 12 pounds is needed to stretch a certain spring 9 inches beyond its natural length. Find a formula that models the length a...
*January 27, 2016*

**chemistry**

A gas has a mass compostion of 20.8% nitrogen, 25.8% oxygen, 28.4% carbon dioxide and 25 % hydrogen. Determine its average molecular weight.
*January 25, 2016*

**math**

Is the only difference between a ratio and a rate in a ratio the units are the same so they cancel out and in a rate they are different so they don't cancel out and so you have to show them?
*January 19, 2016*

**chemistry**

How would your calculated %P2O5 value be affected if you had not used this blank solution
*December 4, 2015*

**physics**

Alice has a mass of 70.0 kg and her car has a mass of 1000.0 kg. Alice is sitting in parked car on the side of the road. The magnitude of the normal force exerted by the road on her car is? (use g = 9.81 m/s2)
*November 8, 2015*

**ART CHECKING!!! PLEASE CHECK IT!!! :(**

@Mackenzie cancer's answers are correct. Maybe it was for a different assessment bevause I just took it and got a 10/10
*November 5, 2015*

**need help with thsi equation**

ZnSO4.xH2O(s) ---> ZnSO4(s)+xH2O(g)
*September 28, 2015*

**need to balance equation**

ZnSO4.xH2O(s) ---> ZnSO4(s)+xH2O(g)
*September 28, 2015*

**Maths Income Tax**

1) A man with an income of $7500 and allowance of $1800, paid $1824 in tax. What is the rate of taxation? 2) Mr Green earns $95 per week and has allowances of $ 2450. Mrs Patel earns $19400 per annum and has allowances of $3680. They both pay all their tax at basic rate. How ...
*August 29, 2015*

**Maths proportions**

1) Nine milk bottles contain 4.5 litres of milk between them.How much do five bottles hold? 2) A shopkeeper can buy 36 toys for $20.52. What will he pay for 120 toys? 3) Three men can build a wall in 10 hours. How many men would be needed to build the wall in 7.5 hours? 4) ...
*August 22, 2015*

**Maths-Proportions**

Thnx
*August 22, 2015*

**Maths-Proportions**

1) An aircraft flying at 500 km/h completes a journey in 8.4 h. How long would the journey take if it flew at a speed of 420 km/h? 2) Jackie can drive to work in 18 mins if he travels at an average speed of 35 m.p.h. How long will the journey take if she drives at an average ...
*August 22, 2015*

**chemistry**

a 2.00g sample of zinc metal is added to a calorimeter containing 150g of nitric acid solution initially at 20.0 degrees celsius . The temperature of the solution increased to 28.0 degrees celsius . Calculate the delta H of the reaction assuming that the specific heat capacity...
*June 20, 2015*

**science**

Lele is right👌🏼
*May 19, 2015*

**us hist help!!!!**

Raven Firestone is correct
*December 8, 2014*

**Math **

Two 6-sided dice are rolled at the same time. How many outcomes correspond to the event that the sum of the numbers is 5?
*June 9, 2014*

**Math**

Thank You bobpursley
*April 10, 2014*

**Math**

I really need help on this PLEASE a 5 man baseball team how would I find average? Would it be total hits divided by at bats or add up the 5 averages and divide by 5? Thank You - Please help me!
*April 10, 2014*

**Math**

For a 5 man baseball team how would I find the average? Would it be total hits divided by total at bats or add up 5 averages and divide by 5?
*April 10, 2014*

**math**

samantha has 28 and she gets 28 more how many would she have in all.
*March 28, 2014*

**physics**

A car moving with an initial speed v collides with a second stationary car that is 46.0 percent as massive. After the collision the first car moves in the same direction as before with a speed that is 37.7 percent of the original speed. Calculate the final speed of the second...
*March 24, 2014*

**physics**

Three identical uniform meter sticks are placed on the floor. The first stick lies along the y axis from y = 0.320 m to y = 1.32 m. The second stick lies along the x axis from x = 0.330 m to x = 1.33 m. The third stick is positioned so that one end is on the x axis at x = 0....
*March 21, 2014*

**accounting**

4. Graham maintains that formulation and implementation are phases in the strategic management process. Yolanda maintains that evaluation and estimation are also part of this process. Who is correct? A. Yolanda is correct. B. Both Graham and Yolanda are correct. C. Graham is ...
*February 7, 2014*

**medical coding**

A patient is admitted to the hospital for chest pains due to tachycardia. While in the hospital, the patient was also treated for type 1 diabetes. Upon further review, the coder noted that the documentation and ekg didn, t provide further evidence of the type of tachycardia or...
*December 8, 2013*

**Science Fossils**

So it would be B
*October 3, 2013*

**physics**

A staging that weighs W staging supports a painter weighing 770 N. The reading on the left scale is 660 N and the reading on the right scale is 410 N. What is the weight of the staging? Answer in units of N
*September 8, 2013*

**physics**

An arrow is shot from a bow at 20.0 m/s at an angle of 65 degrees above the horizontal. The arrow leaves the bow at a height of 1.80 m. At what height will it strike a wall that is 10.0 m away? (Remember to connect the two motions of the arrow using time.)
*September 5, 2013*

**Math**

right because you would divided 32 and 4 to get 8
*April 8, 2013*

**government**

That's really helpful of u.
*February 28, 2013*

**science**

656.2
*February 21, 2013*

**Math**

Okay so for anyone stuck on this quick check. The actually answers are C B D A C
*December 12, 2012*

**Physics**

Calculate the distance (in ) that Larry runs if he maintains an average speed of 8.9 for 1 hour.
*October 2, 2012*

**Physics**

Two small pith balls, each of mass m = 16.6 g, are suspended from the ceiling of the physics lab by 1.8 m long fine strings and are not moving. If the angle which each string makes with the vertical is è = 19°, and the charges on the two balls are equal, what is the...
*June 6, 2012*

**Intergration: Measurement (Math)**

I don't get it. I need to find out these conversions. 15,000 g= ____ kg 5,000 mL= ____ L 75 mL= ____ L 390 mL= ____ L 0.03 m= ____ mm 6 m= _____ mm 2.48 L= ______ mL 43.2 L= ______ mL 807 mL= _____ L 3,751 m= _____ km
*May 14, 2012*

**PHYSICS HELP!!!!!!!**

You walk 50 m to the north, then turn 60° to your right and walk another 45 m. How far are you from where you originally started?
*March 1, 2012*

**PHYSICS ARGENT!!!**

Determine the scalar product of A= 3.0i + 1.0j - 2.0k and B= 3.0i - 2.0j - 3.0k
*March 1, 2012*

**math**

how many feet in a dozen
*February 24, 2012*

**Physics**

Review Conceptual Example 11 before attempting this problem. An empty capacitor is connected to a 9V battery and charged up. The capacitor is then disconnected from the battery, and a slab of dielectric material (k=3)is inserted between the plates. (a) Find the amount by which...
*February 9, 2012*

**Physics**

The membrane that surrounds a certain type of living cell has a surface area of 2.13 x 10-9 m2 and a thickness of 1.94 x 10-8 m. Assume that the membrane behaves like a parallel plate capacitor and has a dielectric constant of 6.4. (a) If the potential on the outer surface of ...
*February 9, 2012*

**Medical Coding**

This is what I used: 162.9 , 511.81, 32421, 32421-76
*January 10, 2012*

**math**

fiind equivalent fractions with a common denominator and order from least to greatest 9/15 ,1/3 ,2/5
*December 15, 2011*

**math**

fiind equivalent fractions with a common denominator and order from least to greatest 7/12 ,2/6 ,7/8
*December 15, 2011*

**math**

fiind equivalent fractions with a common denominator and order from least to greatest 3/8 ,1/3 , 3/4
*December 15, 2011*

**math**

find equivalent fractions with a common denominator and order from least to greatest 3/7 ,1/9 ,2/3
*December 15, 2011*

**physics**

The temperature of 2.7 moles of an ideal gas is 471 K. How much work does the gas do in expanding isothermally to 3.7 times its initial volume?
*December 7, 2011*

**Physics**

When you take a bath, how many kilograms of hot water (50°C) must you mix with cold water (13°C) so that the temperature of the bath is 36°C? The total mass of water (hot plus cold) is 215kg. Ignore any heat flow between the water and its external surroundings.
*December 1, 2011*

**Physics**

A solid object floats on ethyl alcohol, with 60.9% of the object's volume submerged. Find the density of the object.
*December 1, 2011*

**Physics**

In the process of changing a flat tire , a motorist uses a hydraulic jack. She begins applying a force of F1=8.6N to the input piston. As a result, the output plunger applies a force of F2=305N to the car. The height difference between the input piston and the output plunger ...
*December 1, 2011*

**physics**

how can projectile motion be applied in porkour?
*November 30, 2011*

**physics**

A uniform disk with a mass of 27.3 kg and a radius of 0.309 m is free to rotate about a frictionless axle. Forces of 90.0 N and 125 N are applied to the disk, as the drawing indicates. (b) What is the angular acceleration of the disk?
*November 3, 2011*

**physics**

Suppose you need to measure the mass of an object, but have only a 7-kg standard mass and a meter stick. Place a knife edge under the 50-cm mark of the meter stick. Then put the 7-kg standard mass at the 39.1-cm mark and place the object so as to balance the standard mass. If ...
*November 3, 2011*

**physics**

A uniform disk with a mass of 27.3 kg and a radius of 0.309 m is free to rotate about a frictionless axle. Forces of 90.0 N and 125 N are applied to the disk, as the drawing indicates. (a) What is the net torque produced by the two forces? (b) What is the angular acceleration ...
*November 2, 2011*

**physics**

A person is sitting with one leg outstretched, so that it makes an angle of = 39.9o with the horizontal. The weight of the leg below the knee is 34.7 N with the center of gravity located below the knee joint. The leg is being held in this position because of the force M ...
*November 1, 2011*

**physics**

A ball of radius 0.2m rolls along a horizontal table top with a constant linear speed of 3.04 m/s. The ball rolls off the edge and falls a vertical distance of 2.02m before hitting the floor. What is the angular displacement of the ball while it is in the air.
*October 26, 2011*

**physics**

Find the net torque (magnitude and direction) produced by the forces F1 (F1 = 17.3 N) and F2 (F2 = 26.1 N) about the rotational axis shown in the drawing. The forces are acting on a thin rigid rod, and the axis is perpendicular to the page. (x = 0.323 m, y = 1.021 m, = 28.6°)
*October 26, 2011*

**physics**

Find the net torque (magnitude and direction) produced by the forces F1 (F1 = 17.3 N) and F2 (F2 = 26.1 N) about the rotational axis shown in the drawing. The forces are acting on a thin rigid rod, and the axis is perpendicular to the page. (x = 0.323 m, y = 1.021 m, = 28.6°)
*October 26, 2011*

**Science**

Why does an ion have an electrical charge?
*September 5, 2011*

**help me!**

is -5 a real #? rational #? irrational #? whole #? integer? counting (natural) #?
*April 13, 2011*

**math**

What is the total value of a 400 certificate of deposit after 36 month if the simple annual interest rate is 3 percent?
*March 31, 2011*

**literary**

what is the first person narattor
*February 12, 2011*

**9th grade**

What is a parent function?
*November 12, 2010*

**Stats**

An auditor reviewed 25 oral surgery insurance claims from a particular surgical office, determining that the mean out-of-pocket patient billing above the reimbursed amount was $275.66 with a standard deviation of $78.11. (a) At the 5 percent level of significance, does this ...
*November 3, 2010*

**Word within the Word Analogy Help**

That I can not answer, my friend;) peace out dude;)1960s rule!
*November 1, 2010*

**math question**

Four race car drivers participate in a race on a loop track. All four are going at a constant speed. Assume that they did a ying start. That is, all four crossed the start line at the same instant while each was going their constant speed. Then they continue driving forever ...
*October 29, 2010*

**Algebra**

find the x and y intercepts: 3x - 2y = -12 i know for the x intercept, put y=0 in the equation,s olve for x. For the y intercept, do the reverse. But i still dont understand how to solve it. Its just majorly fustrating me. And i can't go to school and ask a teacher because...
*October 21, 2010*

**algebra**

eh idk. i hate showing work so im just not going to do. i hate math i suck at it. im more biology, chemistry, science kid.^^
*October 21, 2010*

**algebra**

Find the x and y intercepts: 3x - 2y = -12 i know the anwser is (2 , -3) but how do i show the work that i found that anwser?
*October 21, 2010*

**math**

divide mi by gal then round the number up if the number after the decimal point is 5 or above and down if the number after the decimal is less than 5
*September 19, 2010*

**algebra**

save a 100 a month for 30 yrs at 3% interest compounded monthly how much do you have at the end of 30 years what are the steps to solve this problem
*September 18, 2010*

**algebra**

uo=100 un=un-1(1+.03/12)+100 the senerio is save 100 a month for 30 years interest rate 3% compounded monthly the teacher said the answer is 23,796 I can't get this to work
*September 18, 2010*

**algebra**

help I don't understand the recursive formula
*September 18, 2010*

**science**

Write a complete C program that asks the user to enter continuously a series of words and the word “end” to stop. For each word entered, you should output the number of characters of this word and then ask him to enter the other word. Finally, when he finished ...
*April 25, 2010*

**choir**

I have been given a piece of music for an audition piece to learn over spring break, it is called Danny boy and i can not exactly get one part correct. How do i get this part?
*April 6, 2010*

**physics**

A positive point charge = 2.1×10−5 is fixed at the origin of coordinates, and a negative point charge = −5.4×10−6 is fixed to the axis at . abeer abdullah Part A Find the location of the place along the axis where the electric field due to these ...
*March 6, 2010*

**Critical Thinking**

go to aceyourclassesdotcom for crt 205 assignments
*March 3, 2010*