Saturday

December 3, 2016
Total # Posts: 277

**Physics**

passenger must experience no greater than 10 times the magnitude of the acceleration due to gravity as the spring cushions their fall & brings the elevator to rest. Calculate the spring constant assume mass of elevator and passenger is 'M' kg. what is the spring ...

*November 3, 2016*

**Science**

similarities between naturopathic medicines to Aboriginal healing medicine.

*October 8, 2016*

**Chem**

1a) Calculate the molar concentration of the KIO3 solution provided. KIO3 2.15g/L we used 10 mL in the experiment.

*October 7, 2016*

**Genetics**

A poor custodian is working in a seedy factory when he is pushed into a vat of ethidium beomide during an epic fight between a superhero and a villain. 1. What mutations are likely to occur from this exposure? 2. What repair mechanisms would be used to fix them? 3. What might ...

*October 2, 2016*

**English**

okay thanks anyways!

*September 27, 2016*

**English**

Okay so i have a have chosen 2 book (Day of the Triffids & Oryx and Crake ) We had to describe a theme that describes both these book below is the theme i proposed but my teacher said it was "to broad". So i would like some help and tips of how to make it a bit more ...

*September 27, 2016*

**Chemistry G.12**

Check if im right please: 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) At a specific time in the reaction, ammonia is disappearing at rate of 0.068 mol/(L • s). What is the corresponding rate of production of water? I did Rate of Production H20 = 1/6(0.068) = 0.0113 mol/(L*s...

*September 22, 2016*

**Chem**

In a lab where a thermometer is used to measure temperature for a hot liquid it is possible as and error that the thermometer will cause the temperature of the liquid to cool slightly causing a observation error but how can this be fixed to minimize error?

*September 15, 2016*

**Chemistry**

ohh okay so that why it says it is very soluble..

*September 15, 2016*

**Chemistry**

MgCl2 (aq) → Mg+2(s) + 2Cl-(g) are the states right? or would Mg+2 be a (g). Note: MgCl2 is very soluble. thanks

*September 15, 2016*

**math**

149 + 9.50x

*September 15, 2016*

**Chemistry G.12**

Thanks! :)

*September 15, 2016*

**Chemistry G.12**

(a) Which of the properties, crystal lattice energy and hydration energy, reduces the solubility of an ionic compound? (b) Which property, when increased, increases the solubility? I was thinking for (a) that it would be crystal lattice energy and for (b) hydration... Im not ...

*September 15, 2016*

**English**

How do euphemisms, cliché’s, proverbs and ready phrases influence the way you write and speak? Don't provide me an answer rather put me on the right track of thinking. Please and Thank you!

*September 14, 2016*

**chemistry**

Thank you so much! this helped a lot!

*September 11, 2016*

**chemistry**

Okay so i have this titration question and I don't really know the steps because everyone explains it differently. IF someone could explain me the steps of how i could solve this questions and other like this. Thanks In three runs of titration 22.8mL, 221.mL, 22.2mL of 0....

*September 11, 2016*

**Chem**

How does H20 become the Product? Is it a special rule or something? MG(OH)2 + HCl = MGCl2 + H2O Thanks.

*September 11, 2016*

**Health**

i mostly just wanted a suggestion or kind of an example of what is a mental health goal and a social health goal..

*July 27, 2016*

**Health**

set a SMART mental health goal and One social health goal

*July 27, 2016*

**Math**

Thanks!

*July 26, 2016*

**Math**

An open box, no more than 5 cm in height, is to be formed by cutting four identical squares from the corners of a sheet of metal 25 cm by 32 cm, and folding up the metal to form sides. The capacity of the box must be 1575 cm^3. What is the side length of the squares removed? ...

*July 26, 2016*

**math**

SAC held a spring fling. SAC provides the following formulas about the spring fling. 1. The number, N, of people who attend the park is a function of price, p, in dollars: 𝑁(𝑝) = −(𝑝 + 5)(𝑝 − 17) assuming the minimum ticket price is...

*July 23, 2016*

**Math - Trig**

thanks and sorry i didn't know some one already posted this.

*July 22, 2016*

**Math - Trig**

The depth of water, h, in metres at time t, in hours, is given by the formula: h(t)=7.8+3.5sin[pi/6(t−3)]. Its a 24 hours period and t=0 is midnight. Provide an algebraic solution to determine the time(s) of day, the water reaches the depth of 10.29 m i got one time 4.51...

*July 22, 2016*

**Math**

nvm got it! :) u did substitution right?

*July 22, 2016*

**Math - Question**

how is ** - *** give - 24 ? shouldn't it be 4?

*July 22, 2016*

**Math**

lol! don't read my comment! i didn't see your new one before i posted mine!

*July 22, 2016*

**Math**

but when i expand this i get 3x^3+9x^2-18x-24 and this doesn't work with the equation given as x^2 didn't have an coefficient and b was supposed to be positive.

*July 22, 2016*

**Math**

Sorry! its g(x)=ax^3−x^2+bx−24

*July 22, 2016*

**Math**

The function g(x)=ax^3−x^2+x−24 has three factors. Two of these factors are 𝑥−2 and 𝑥+4. Determine the values of a and b then determine the other factor.

*July 22, 2016*

**Finance**

annual net cost Monthly fee $4, check processing fee of 20 cents, average 23 checks written per month. annual interest of 1.5 percent paid if balance exceeds $750, $8 monthly fee if account falls below minimum balance, average monthly balance $815, account falls below $750 ...

*June 5, 2016*

**Algebra**

A cord is cut into two pieces of different lengths. The sum of the two lengths is 12 centimeters, and the difference between the two lengths is 4 centimeters. Find the lengths of the two pieces of cord.

*April 26, 2016*

**Algebra**

There is an initiation fee to join the River Country Club, as well as monthly dues. The total cost after 7 months' membership will be $3,125, and after 11/2 years, $3,950. Find both the initiation fee and the monthly dues. initiation fee $ monthly dues $

*April 16, 2016*

**p**

A 3.30-kg steel ball strikes a massive wall at 10.0 m/s at an angle of θ = 60.0° with the plane of the wall. It bounces off the wall with the same speed and angle (see the figure below). If the ball is in contact with the wall for 0.204 s, what is the average force ...

*March 8, 2016*

**physics**

Two objects of masses m1 = 0.58 kg and m2 = 0.92 kg are placed on a horizontal frictionless surface and a compressed spring of force constant k = 300 N/m is placed between them as in figure (a) shown below. Neglect the mass of the spring. The spring is not attached to either ...

*March 8, 2016*

**physics**

A 12.0-g piece of clay is launched horizontally at a 102-g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 52 N/m. The piece of clay sticks to the side of the block. If the clay-block system ...

*March 8, 2016*

**physics**

A 3.30-kg steel ball strikes a massive wall at 10.0 m/s at an angle of θ = 60.0° with the plane of the wall. It bounces off the wall with the same speed and angle (see the figure below). If the ball is in contact with the wall for 0.204 s, what is the average force ...

*March 7, 2016*

**physics**

A 12.0-g piece of clay is launched horizontally at a 102-g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 52 N/m. The piece of clay sticks to the side of the block. If the clay-block system ...

*March 7, 2016*

**physics**

A 3.30-kg steel ball strikes a massive wall at 10.0 m/s at an angle of θ = 60.0° with the plane of the wall. It bounces off the wall with the same speed and angle (see the figure below). If the ball is in contact with the wall for 0.204 s, what is the average force ...

*March 7, 2016*

**physics**

ball of mass m = 1.70 kg is released from rest at a height h = 54.0 cm above a light vertical spring of force constant k. The ball strikes the top of the spring and compresses it a distance d = 8.80 cm Neglecting any energy losses during the collision, find the following. a) ...

*March 3, 2016*

**physics**

An older-model car accelerates from 0 to speed v in 10. s. A newer, more powerful sports car of the same mass accelerates from 0 to 4v in the same time period. Assuming the energy coming from the engine appears only as kinetic energy of the cars, compare the power of the two ...

*March 3, 2016*

**physics**

An archer pulls her bowstring back 0.420 m by exerting a force that increases uniformly from zero to 240 N. (a) What is the equivalent spring constant of the bow? N/m (b) How much work does the archer do in pulling the bow? J

*March 3, 2016*

**physics**

A 0.290-kg block along a horizontal track has a speed of 1.30 m/s immediately before colliding with a light spring of force constant 53.4 N/m located at the end of the track. (a) What is the spring's maximum compression if the track is frictionless? m

*March 3, 2016*

**health II**

Every nerve impulses stimulate the breathing process or ventilation, which moves air through a series of passages into and out of the lungs

*March 2, 2016*

**physics**

A 5.3-kg block is pushed 2.3 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of θ = 30° with the horizontal, as shown in the figure below. If the coefficient of kinetic friction between block and wall is 0.30, determine ...

*March 2, 2016*

**physics**

A 25.0-kg child on a 3.00-m-long swing is released from rest when the ropes of the swing make an angle of 31.0° with the vertical. (a) Neglecting friction, find the child's speed at the lowest position. m/s (b) If the actual speed of the child at the lowest position is...

*February 27, 2016*

**physics**

A daredevil on a motorcycle leaves the end of a ramp with a speed of 30.5 m/s as in the figure below. If his speed is 29.0 m/s when he reaches the peak of the path, what is the maximum height that he reaches? Ignore friction and air resistance. m

*February 27, 2016*

**physics**

A 56.0-kg runner has a speed of 3.10 m/s at one instant during a long-distance event. (a) What is the runner's kinetic energy at this instant? KEi = J (b) If he doubles his speed to reach the finish line, by what factor does his kinetic energy change? KEf KEi

*February 27, 2016*

**physics**

im getting wrong answer for 1) i got 216.2 J but that is incorrect 2) im also getting wrong when i plug in everything. 3) is 0 4) is 119.50 so can u please look at 1 and 2 and help me

*February 27, 2016*

**physics**

A 5.3-kg block is pushed 2.3 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of θ = 30° with the horizontal, as shown in the figure below. If the coefficient of kinetic friction between block and wall is 0.30, determine ...

*February 27, 2016*

**math**

Can you please help me figure out what 3/8 is written as a fraction,a decimal, and a percent?

*February 8, 2016*

**Geography**

What is the definition of the term Aryan Migrations?

*December 25, 2015*

**English Language **

Is this sentence a declarative or interrogative? "I wonder if all mammals have fur"

*November 12, 2015*

**math**

A submarine enters the sea at an initial speed of 2 meters per minute. The submarine's speed triples every minute. What is the submarine's speed after 5 minutes?

*November 2, 2015*

**Chemistry**

A 11.0g sample of a compound containing only oxygen and carbon produce 3.0g carbon and 8.0g oxygen. Determine the empirical formula of the compound.

*March 8, 2015*

**science**

how many grams of CO2 (g) are there in 82.0ml of the gas at 0.916 atm and 30 degrees ceksius

*November 2, 2014*

**Physics**

Pa = fa(v) so fa = Pa/v which equals (2.24 x 10^4)/(31.0)= 722.5 =723N

*September 29, 2014*

**math**

A boy of height 95 cm is walking away from base of a lamp post at a speed of 1.5 m/s.If the lamp post is 3.8 m above the ground, find the length of his shadow after 5 seconds.

*September 25, 2014*

**physics**

A uniform ladder, 3 m long and weighing 130 N, placed against a smooth wall, its lower end being 1.80 m from the wall. A 700N man stands on the upper most rung of the ladder located 0.45 m from the upper end of the ladder. a.) What are the vertical and horizontal forces ...

*September 17, 2014*

**physics**

An object has a weight of 5.10 (N) AT SEA LEVEL. What is the acceleration due to gravity on the object if it is placed in a spaceship?

*August 9, 2014*

**math**

A loan has a due date of December 20. If it is made on September 19, for how many days is the loan?

*July 1, 2014*

**math**

solve 15-18+n and 18+5+N

*March 20, 2014*

**science**

A cart rolling down an incline for 5.0 seconds has an acceleration of 4.0m/s2. If the cart has a beginning speed of 2.0m/s what is its final speed?

*March 10, 2014*

**physics**

An elevator and rider have a mass of 1600 kg combined. What is the tension force in the cable lifting them at a steady speed of 3 m/s? Assume no friction.

*February 12, 2014*

**Chemistry**

NaH2

*February 5, 2014*

**Math**

3.75/0.75=5

*February 5, 2014*

**algebra**

a. 775 b.1250 c.60 1/5

*February 5, 2014*

**cups of milk**

A recipe calls for 2 3/4 cups of milk. How many cups of milk, written as a fraction greater than one, are used in the recipe

*February 4, 2014*

**pscyhology**

another descriptive is called? in which ? individual is studied in great details

*January 19, 2014*

**pscyhology**

tentative explanation is known as ?

*January 19, 2014*

**young child**

A child have not learn the prerequisite fundamentals need for a combination of motor patterns is suffering from what

*January 11, 2014*

**Statistics**

that rounding wasn't correct.

*December 2, 2013*

**Bio**

another descriptive technique is called ? in which -------indidivuals is studied in great detail

*November 28, 2013*

**science**

This is all wrong i got a 2/14. DO NOT EVER USE THIS....😱😨😵😤

*November 24, 2013*

**math**

Macy's originally sold designer jackets for $2.77.if they are put on sale at a markdown of 22%,what is the sale price

*June 1, 2013*

**algebra**

find the equation of the line that is perpendicular to y=-3x-6; (-1,5)?

*May 17, 2013*

**Algebra**

Write linear equation in form y=mx+b given this condition parallel to y=-1/2x +1, through (4,2)?

*May 17, 2013*

**psy**

what should one do order to increase self esteem experts

*May 10, 2013*

**psycology**

in order to increase self esteem ,experts say you should what

*May 10, 2013*

**psycology**

in order to increase self esteem ,experts say you should what

*May 10, 2013*

**Algebra 1**

A ball is thrown upward with an initial velocity of 35 meters per second from a cliff that is 80 meters high. The height of the ball is given by the quadratic equation h = -49t^2 + 35t + 140 where h is in meters and t is the time in seconds since the ball was thrown. Find the ...

*March 7, 2013*

**Algebra**

A ball is thrown upward with an initial velocity of 14 meters per second from a cliff that is high. The height of the ball is given by the quadratic equation where h is in meters and t is the time in seconds since the ball was thrown. Find the time that the ball will be 30 ...

*March 4, 2013*

**statistics**

A sum of twelve given a pair of sixes. give explanation

*February 20, 2013*

**math**

a formula for calculating simple interest is I = Pr, were I is the interest earned in dollars, P is the principal or original investment, and r is the fixed rate of interest. If the amount of interest earned is $2.25 and the interest rate is 3%, what is P?

*February 14, 2013*

**Psychology**

Xo

*February 7, 2013*

**Math, Statistics**

According to a recent survey, 38% of americans get 8 hours or less of sleep. if 25 people are selected, find the probability that 14 or more people will get 8 hours or less of sleep.

*January 11, 2013*

**math**

(B+24)÷100

*January 2, 2013*

**psychology**

what does it mean mind over matter?

*December 11, 2012*

**Microeconomics**

1. Complete Table-1 (Joseph Farms, Inc., Cost and Revenue Data), either as a Microsoft Excel spreadsheet, or as a Microsoft Word table. Assume that the price is $165 and the fixed costs are $125, at an output level of 1. Also assume that the data represents a firm in pure ...

*December 6, 2012*

**chemistry**

what is cryogenetics

*November 30, 2012*

**business statistics**

1.21 Three professors at Northern Kentucky University compared two different approaches to teaching courses in the school of business (M. W. Ford, D. W. Kent, and S. Devoto, “Learning from the Pros: Influence of Web-Based Expert Commentary on Vicarious Learning about ...

*November 19, 2012*

**Science**

your grade would be 94.5

*November 15, 2012*

**chemistry**

wh at is prtoplam

*November 15, 2012*

**chemistry**

what is a positron

*November 14, 2012*

**chemistry**

What role does RNA play in proteomics and why?

*November 13, 2012*

**chemistry**

A sample of oil has a mass of 65g and a volume of 80.0 mL. What is the density?

*October 4, 2012*

**chemistry**

a 225.0 gram sample of aluminum is heated and the temperature increased from 50.0 celsius to 65.0 celsius for temperature change of 15.0 celsius. how many calories of heat was absorbed to produce this temperature change?

*September 24, 2012*

**math**

the null and alternative hypothesis would be Ho: ƒÊ = 6 Ha: ƒÊ ‚ 6

*September 14, 2012*

**Physics**

A ball is thrown from a point 1.1 m above the ground. The initial velocity is 20.0 m/s at an angle of 32.0° above the horizontal. (a) Find the maximum height of the ball above the ground. (b) Calculate the speed of the ball at the highest point in the trajectory.

*September 13, 2012*

**psychology**

She has introduced time in her study.

*September 12, 2012*