Tuesday

December 1, 2015
Total # Posts: 35

**College Physics**

A 1670 kg car rolling on a horizontal surface has a speed of 80 km/hr when it strikes a horizontal coiled spring and is brought to rest in a distance of 6.5 m. What is the spring constant (in N/m) of the spring? (Ignore nonconservative forces such as friction.) Now I've ...
*October 20, 2015*

**physics**

A motorcycle traveling 95.0 km/hr approaches a car traveling in the same direction at 85.0 km/hr. When the motorcycle is 55.0 m behind the car, the rider accelerates and passes the car 18.0 s later. What is the acceleration of the motorcycle (in meters/second^2)?
*September 5, 2015*

**Physics**

Two trains approach each other on parallel tracks. Each has a speed of 20.0 km/hr with respect to the earth. If they are initially 18.0 km apart, how long (in seconds) will it be before they pass each other?
*September 5, 2015*

**math**

which equation is related to the given equation x+13=57
*November 11, 2014*

**math**

solve the following system of the equations using matrices 10x-5y=4 7x+y=10
*August 11, 2014*

**Math **

evalate determinant |-4 -6| |6 8|
*August 11, 2014*

**math **

solve using any appropriate method 10x+y=278 10y+x=107
*August 10, 2014*

**math **

solve using any appropriate method 0.05x+0.25y=99 0.15x+0.05y=108
*August 10, 2014*

**Math **

solving using the elimination method 2r-7s=-6 7r_2s=32
*August 10, 2014*

**co-ordinate geometry**

The joining straight line of the points(3,4)and (2,-1) is perpendicular on the points (k,o) and (2,3k) then find out the value of k.
*August 9, 2014*

**Math **

1/4(8y+4)-18<-1/2(4y-6) Solve
*August 6, 2014*

**Math **

solve the following system of equations using matrices 4x-2y=7 7x+y=13
*July 29, 2014*

**math**

a rectangle's width is one-fifth its length, its perimeter is 60m. find the dimensions of the rectangle
*June 26, 2014*

**math**

anyone did i get this right
*June 26, 2014*

**math**

simplify and write scientific notion for the answer. Use the correct number of significant numbers. (2.74*10^5)(2.2*10^-13) The answer that i got was 6.03 * 10^-19
*June 26, 2014*

**Math **

Jack is 19 years older than Tom. Together their ages 161 years . What are their ages
*June 26, 2014*

**math**

find the product and write in lowest term. -3/7(14/15)
*June 26, 2014*

**Math **

a rectangle's width is one-seventh its length, its perimeter is 160m. find the dimensions of the rectangle.
*June 26, 2014*

** economics**

An increase in an economy's resource pool will: 1)shift the short-run aggregate supply curve inward. 2)cause a movement along the long-run aggregate supply curve. 3)will shift both the long-run and short-run aggregate supply curves outward. 4)will shift the long-run ...
*July 21, 2012*

**Calculus**

INT 1/sqrt e (the constant) dy from 1 to infinity. Determine if it is convergent or divergent
*April 15, 2012*

**Calculus**

sorry if i was not clear. it is INT 1/sqrt e (the constant) dy from 1 to infinity. Determine if it is convergent or divergent
*April 15, 2012*

**Calculus**

Determine if convergent or divergent: Integral 1 to infinity of e to the power of (-1/2).
*April 15, 2012*

**6th G-Math**

C - If the men-to-women ratio is 1:1, then you know that the theatre has the same number of men and women. Women are exactly half the people in the theatre; therefore the women-to-total ratio is .50.
*April 15, 2012*

**Earth/Space Science**

The Earth would not have seasons.
*April 15, 2012*

**Chemistry**

Calculate how many moles of sodium hydrogen carbonate are needed to produce 59 grams of H2O.
*February 11, 2012*

**Chemistry**

Calculate how many moles of sodium hydrogen carbonate are needed to produce 59 grams of H2O.
*February 11, 2012*

**math**

at 12 noon ship A is 65 km due north of a second ship B. Ship A sails south at a rate of 14km/hr, and ship B sails west at a rate of 16km/hr. How fast are the two ships approaching each other 1.5 hours later at 1:30pm?
*February 6, 2012*

**Calculus**

at 12 noon ship A is 65 km due north of a second ship B. Ship A sails south at a rate of 14km/hr, and ship B sails west at a rate of 16km/hr. How fast are the two ships approaching each other 1.5 hours later at 1:30pm? Thank You!
*February 6, 2012*

**Calculus**

For what values of x is the graph of the function f(x)= x^2e^x concave down. Give your awnser using exact values
*January 12, 2012*

**Biology**

Describe how the location of each part of the cellular respiration is diffrent in bacteria and in more complex cells?
*November 28, 2011*

**Calculus**

If the normal to f(x)= (3x/(1+x)) at (2,2) cuts the axes at B and C, determine the legnth of BC.
*November 3, 2011*

**math**

A Standard sheet of typewriter paper is 8 1/2 in. by 11 in.. Don types on a 7 in by 9 in. area of the paper. What is the area of the margins?
*May 24, 2011*

**math**

The volume of a ball is 36 pi cm^3. Find the dimensions of a rectangular box that is large enough to hold the ball.
*May 24, 2011*

**chemistry**

what is the solubility of sodium nitrate at 44 degrees Celcius
*April 12, 2010*

**com140**

Suggest two tips for creating academic documents not mentioned in the resources. Which guidelines are most important for formatting? Which guidelines are less important to a business document but more important to an academic paper?
*October 15, 2009*

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