Sunday

May 24, 2015

May 24, 2015

Total # Posts: 678

**physics**

uuuhhhhh
*February 8, 2012*

**Calculus**

I know I am getting the answer as you did, but the solution that I have with the question that says 1000
*February 3, 2012*

**Calculus**

The answer that I have to this question is 1000 units, I am confused.
*February 3, 2012*

**Calculus**

Suppose the revenue from producing and selling x units of a given product is given by R(x)=10x-0.02x^2 a) Find the number of units produced if the revenue is $800. I really need help with this, I don't know what to do?
*February 3, 2012*

**calculus**

9e^6ln(A)= A^( )
*January 31, 2012*

**American Literature**

What wave of feminism would Charlotte Gilman ("The Yellow Wallpaper") fall into?
*January 31, 2012*

**English Literature**

What is the difference between realism and naturalism?
*January 15, 2012*

**Precalculus**

What did you with -3/2? You have not used it, why?
*January 12, 2012*

**Precalculus**

Estimate the instanteous rate of change f(x) = x/(x+5) at (-3, -3/2) Could someone explain this question to me, this isn't exactly the same as polynomial functions >.<
*January 12, 2012*

**Math**

Could someone verify the answers. I don't know question C and D Thank you! 1. In physics, the formula for centripetal force is F = mv^2/ r where m is the mass, v the velocity, and r the radius. a) Find the length of a string when a mass of 2.4kg is being spun at a speed of...
*January 12, 2012*

**Math**

Someone verify these answers. Thank you! 1. A biologist finds the average production in which cancerous cells are produced in rats is given by p(t)= (t^2-2t+1)/t where t is measured in hours and p(t) is measured in 1000 cells per hour. Estimate the rate at which the average ...
*January 12, 2012*

**Precalculus**

Write an equation for rational function with given properties. a) a hole at x = 1 b) a vertical asymptote anywhere and a horizontal asymptote along the x-axis c) a hole at x = -2 and a vertical asymptote at x = 1 d) a vertical asymptote at x = -1 and a horizontal asymptote at...
*January 10, 2012*

**Physics Please help!**

the coefficient of static friction between the coffee cup and the roof of a car is 0.28, If the maximum acceleration the car can have without causing a cup of coffee (on the top of the car) to slide is 2.7 m/s^. What is the smallest amount of time in which the person can ...
*January 5, 2012*

**Physics Please help!**

the coefficient of static friction between the coffee cup and the roof of a car is 0.28, If the maximum acceleration the car can have without causing a cup of coffee (on the top of the car) to slide is 2.7 m/s^. What is the smallest amount of time in which the person can ...
*January 5, 2012*

**physics**

if you have and open end air column with a length of 75.0 cm and the fifth harmonic is 1175 hz, what is the fundamental frequency? what is the speed of the wave?
*December 6, 2011*

**math**

3x3=36/8___
*December 6, 2011*

**math**

3x3=36/8___
*December 5, 2011*

**Sociology**

Status conflict exists when different groups compete for terrority or other advantages. a.True b.False I think its false
*November 27, 2011*

**Chemistry**

Assuming that the smallest measurable wavelength in an experiment is 0.410 fm (femtometers), what is the maximum mass of an object traveling at 815 m*s^-1 for which the de Broglie wavelength is observable?
*November 2, 2011*

**Sociology**

Change in any social institution requires change in the institution of family. a.True b.False I think its true...
*October 30, 2011*

**math**

is this correct 88 red bows, 132 green bows? thank you
*October 26, 2011*

**math**

is this the correct answer for the bows 132 red bows,88green bows
*October 26, 2011*

**math**

is the correct answer on the rose bushes 21 rose bushes to 7 trees
*October 26, 2011*

**math**

if the ratio of red bows to green bows is 2 to 3 which of these shows possible numbers of red bows to green bows. is this the correct answer 23 red bows, 32 green bows
*October 26, 2011*

**math**

is the correct on the rose bushes 7 roses bushes, 3 trees
*October 26, 2011*

**math**

is the correct answer 20 girls to 24 boys
*October 26, 2011*

**math**

if the ratio of girls to boys on the track team is 5 to 6 which of these shows possible numbers of girls to boys on the track team. a- 24 girls, 20 boys b-50 girls, 56 boys c- 60 girls, 50 boys d- 20 girls,24 boys
*October 26, 2011*

**math**

a- 20 rose bushes, 7 trees b- 7 rose bushes, 3 trees c- 21 rose bushes, 7 trees d- 7 roses bushes, 21 trees
*October 26, 2011*

**math**

if the ratio of rose bushes to trees in the yard is 3 to 1. Which of these shows possible numbers of roses to trees in the yard.
*October 26, 2011*

**Algebra 2**

That is supposed to be the answer but i do not how to get there.
*October 24, 2011*

**Algebra 2**

Question is about Step Functions:(between" " are all floor functions. The formula W=d+2m+"(3(m=1)/5)"+y+"y/4" -"y/100" + "y/400" + 2 gives the day of the month of the given date; m = the number of the month in the year with ...
*October 24, 2011*

**chemistry**

A 10.0 grams piece of gold 90.0 Celsius was stirred into 15.0ml of water at an initial temperature of 25.0 degrees Celsius. The final temperature of the water was 26.34 degrees celsius. Calculate the specific heat of gold. The specific heat of water is 4.184 J/g- degrees celsius
*October 20, 2011*

**Sociology**

When children are taught to sit straight and not slouch, to address men older than themselves as "sir" and to look the person they are addressing in the eye, they are learning aspects of: a.deference b.demeanor its deference, maybe.
*October 14, 2011*

**Sociology**

A major reason why children of upper-middle class families do well in school is the pressure that is placed on them by their families. a.True b.False a I guess..
*October 14, 2011*

**Sociology**

Q1. All societies produce some form of inequality. a)True b)False Q2.Income is the measure of social class inequality that is most often used. a)True b)False for 1 i think a and for 2 a
*October 14, 2011*

**Chemistry**

What is the threshold energy of Chromium? I know the answer but i need to show work and through all the equations to get done i get lost. So can someone help me.
*October 12, 2011*

**American government**

Outside lobbying does not include the use of: a. Campaign contributions to legislators who favor the interest group. b. Face to face exchanges between lobbyist and policymakers. c. Targeting group resources on key election races. d. The news media to influence policy makers. ...
*October 4, 2011*

**english**

thanks!
*October 3, 2011*

**english**

so will it be A than?
*October 3, 2011*

**english**

You are building a bibliography for a researched writing project in a myth and literature class. Should you use MLA style? a.Yes b.No I think B, but I am not sure.
*October 3, 2011*

**english**

Thank you :)
*October 3, 2011*

**english**

A list of works cited should include: a.All the works you read while writing your paper b.All of the works you used in your paper. c.All of the works you could find while writing your paper. i think its b.
*October 3, 2011*

**Math**

Dominic arrived at work and went behind the counter at the north end. As he faced out over the counter, north was to his right, south to his left. While he was standing at the north end, a customer ordered a sandwich. Dominic went through these steps: 3 feet to his left to ...
*October 2, 2011*

**Sociology**

Collective behavior-for example riots, demonstrations, give rise to social movements. Please give an example to support this observation.
*October 1, 2011*

**Sociology**

1)Efforts by an elite to control all forms of organizational life in a society are known as totalitarianism. True False 2)No society actively bans homosexual practices. True False i think for 1) its true for 2) its false?
*September 30, 2011*

**Sociology**

than its Jim Jones's Temple of God?
*September 30, 2011*

**Sociology**

Which of the following would be classified as a messianic movement? Jim Jones's Temple of God the American labormovement the Ku Klux Klan the women's movement please help. thanks
*September 30, 2011*

**Sociology**

Norms of sexual behavior vary widely around the world. True False i think true..
*September 30, 2011*

**Sociology**

Define Sexual Selection?
*September 29, 2011*

**Math**

Determine if it is always sometimes never or always true - ray LJ and ray TJ are opposite rays -the intersection of two planes is a point
*September 12, 2011*

**Geometry**

Determine if it is always sometimes never or always true - ray LJ and ray TJ are opposite rays -the intersection of two planes is a point
*September 12, 2011*

**Math**

FACTOR COMPLETELY 6abcx^2-42abcx-468abc
*September 12, 2011*

**Physics**

Convert 25 meters to centimeters and gigameters.
*September 12, 2011*

**History**

Massaoit
*September 11, 2011*

**History**

The treaty signed in 1621 by the puritans and the massoasits fair to both sides. If so explain. Oh and what is the difference between pilgrims and puritans. Thanx!
*September 11, 2011*

**Math**

Cans of soup 1 2 3 4 Number of servings 4 8 12 16 Write a function rule
*August 28, 2011*

**Math**

Write a function rule. Cans of soup- 1,2,3,4 Number of serving-4,8,12,16
*August 28, 2011*

**Manufacturing Process**

THe ability of a sand mold to with stand high temperatures depends on its A. clay content B Sand Content C. Water Content D Wax Content
*August 23, 2011*

**Health**

I am writing a paper and it's asking to include resource information. Could that be the references or citations?
*July 23, 2011*

**Health**

I am having trouble understanding this. I am writing a paper on childhood obesity and I am to cover the following: Ethical and legal considerations How population characteristics influence vulnerability. Could you put in simpler terms. Thank you.
*July 15, 2011*

**Physics**

A binary star system consists of two equal mass stars that revolve in circular orbits about their center of mass. The period of the motion, T=29.6 days, and the orbital speed v= 220 km/s of the stars can be measured from telescopic observations. What is the mass (kg) of each ...
*July 12, 2011*

**Health**

Could you please put this in simpler terms.Is it expedient to include cultural assessment in community/public health care with vulnerable populations?
*July 11, 2011*

**American Gov**

What was the main reason for the decline of party centered politics?
*July 11, 2011*

**Physics- impuse and force**

A car is moving to the right with a speed of 20 m/s. A large SUV is moving to the left at a speed of 20 m/s. The SUV has a mass three times that of the small car. They have an totally inelastic head-on collision in an intersection. There are two passengers in each vehicle, one...
*July 5, 2011*

**physics**

At car (1140-kg)traveling at 76.04 m/s and truck (12600-kg)traveling 6.88 m/s have a head-on collision and then stick together. What is their final common velocity (m/s)? (assume the car is going in the positive direction) What is the cars' change in momentum in the above ...
*June 29, 2011*

**Physics **

And yes, that is the right mass.
*June 29, 2011*

**Physics **

Ohh sorry, the truck is going (24.8 km/hr) and the car is going 76.042 m/s
*June 29, 2011*

**Physics **

At car (1140-kg)traveling at 24.8 m/s and truck (12600-kg) have a head-on collision and then stick together. What is their final common velocity (m/s)? (assume the car is going in the positive direction) What is the cars' change in momentum in the above question (kg m/s)? ...
*June 29, 2011*

**Physics**

In an intense battle, gunfire is so intense that bullets from opposite sides collide in midair. Suppose that one (with mass M= 5.12 g moving to the right at a speed V= 214 m/s directed 21.3 degrees above the horizontal) collides and fuses with another with mass m = 3.05 g ...
*June 28, 2011*

**Physics**

At what speed would a 1140-kg car have the same momentum as a 12,600-kg truck traveling at 25 km/hr? The hint given to this problem is that I need to find the velocity of the car and truck. Converting 25 km/hr to m/s I get 6.944 m/s as the initial velocity.. The professor told...
*June 26, 2011*

**Physcis**

Thank you for such a wonderful explanation
*June 22, 2011*

**Physcis**

An object slides without friction in a bowl shaped like a hemisphere. It is released from rest at one edge of the bowl, slides up the other side before stopping right on the edge of the bowl. During which part of this process is the power being delivered by the gravitational ...
*June 22, 2011*

**Physics**

A ball is thrown upward and allow to fall under the influence of gravity. We will ignore the effects of air resistance. We consider three times: Time A, when the ball is first thrown upward, Time B when the ball reaches the peak, and Time C when the ball hits the ground. Rank ...
*June 18, 2011*

**Physics**

A parachutist with mass 79.7 kg jumps from an airplane traveling at a speed vi= 112 km/hr at a height H = 2570 m. He lands with a speed of vf = 5.21 m/s. What is the change in mechanical energy (J) of the earth- parachutist system from just after the jump to just before ...
*June 18, 2011*

**Physics Conservation of energy**

A box is pushed across the floor against a constant frictional force. The box is pushed across the room to the east in 30 seconds and returned to its starting point (pushed to the west) in 60 seconds. Which of the following is true about the work done and the power expended in...
*June 13, 2011*

**Physics Conservation of Energy**

A car traveling at 20 miles/hour stops in a distance of 15 feet when its brakes are locked. Assuming that the frictional force doesn't depend on speed, that same car traveling at 60 miles/hour will stop in a distance closest to a. 15 feet b. 45 feet c. 90 feet d. 135 feet ...
*June 13, 2011*

**chemistry**

An aqueous solution is 22.0% by mass silver nitrate, AgNO3, and has a density of 1.22 g/mL. what is the molality of silver nitrate in the solution?
*June 12, 2011*

**Physics**

A 645-kg elevator starts from rest and reaches a cruising speed of 1.47 m/s after 3.13 seconds. It moved 2.75 m during that time. What average power (W) is delivered by the motor during the initial acceleration of the elevator during the first 3.13 seconds? The correct ...
*June 6, 2011*

**Physics Block and ramp**

Thank you so much!!!! I get it.
*June 6, 2011*

**Physics Block and ramp**

A crate of mass 0.812 kg is placed on a rough incline of an angle 35.3 degrees. Near the base of the incline is a spring of spring constant 1140 N/m. The mass is pressed against the spring a distance x and released. It moves up the slope 0.169 meters from the compressed ...
*June 6, 2011*

**Physics- bungee jump**

A tall bald student (height 2.1 meters and mass 91.0 kg) decides to bungee jump off a bridge 36.7 meters above the river. The bungee cord is 25.3 meters long as measured from the attachment at the bridge to the foot of the jumper. Treat the bungee as an ideal spring and the ...
*June 6, 2011*

**Physics**

A construction crew pulls up an 87.5 kg load using a rope thrown over a pulley and pulled by an electric motor. They lift the load 15.5 m and it arrives with a speed of 15.6 m.s having started from rest. Assume that acceleration was not constant. How much work was done by the ...
*June 3, 2011*

**Physics - pulley**

A construction crew pulls up an 87.5-kg load using a rope thrown over a pulley and pulled by an electric motor. They lift the load 15.5 m and it arrives with a speed of 15.6 m/s having started from rest. Assume that acceleration was not constant. I have done the problem but am...
*June 3, 2011*

**Physics - Spring gun**

A spring gun is made by compressing a spring in a tube and then latching the spring at the compressed position. A 4.87-g pellet is placed against the compressed and latched spring. The spring latches at a compression of 4.87 cm, and it takes a force of 9.13 N to compress the ...
*May 29, 2011*

**Physics**

A child rides on a Ferris Wheel at the State Fair. The seat always faces to the right. There are three forces that act on the child,the child’s weight, W, the normal force of the seat,N, and the force of friction between the child and the seat, f. At which listed location...
*May 26, 2011*

**Physics - Multiple choice**

Correction: I believe it to be (a) not (c)
*May 26, 2011*

**Physics - Multiple choice**

An object is moving in a circle at a constant speed. From this you can be certain that a) there are at least two forces acting on the object, which balance each other. b) there are at least two forces acting on the object, which do not balance each other c) there must be more ...
*May 26, 2011*

**Physics**

A pendulum of length L=26.0 cm and mass m= 168 g is released from rest when the cord makes an angle of 65.2 degrees with the vertical. A) how far (m) does the mass fall before reaching its lowest point? My work: .26m - .109 = .151 m B) how much work (J) is done by gravity as ...
*May 26, 2011*

**math**

list all the factors of 84
*May 23, 2011*

**math**

At approximately what rate would you have to invest a lump-sum amount today if you need the amount to triple in six years, assuming interest is compounded annually?
*May 4, 2011*

**math**

NVM's preferred stock currently has a market price equal to $80 per share. If the dividend paid on this stock is $6 per share, what is the required rate of return investors would get from NVM preferred stock?
*May 4, 2011*

**trig**

sin^-1(sin5pi/6)
*April 19, 2011*

**trigonometry**

simplify sin7x-sin3x as a product of trig functions.
*April 19, 2011*

**trig**

convert the point with polar coordinates (2,7pi/6) into rectangular coordinates.
*April 19, 2011*

**trig**

The parametric equations for a curve in the x-y plane are x=2+t^2 and y=4-3t. Determine the points where the curve intersects the x-axis.
*April 19, 2011*

**trig**

simplify the expression: sin(theta+pi/4) + sin(theta-pi/4)
*April 19, 2011*

**trigonometry**

convert the polar equation r^2=2cos^2theta + 3sin^2theta into a rectangular equation
*April 18, 2011*

**trig**

simplify the expression sin(theta+pi/4) + sin(theta-pi/4)
*April 18, 2011*

**physics**

While on the moon, the apollo astronauts enjoyed the effects on gravity so much smaller then that ont he earth. If neil armstrong jumped up on the moon with the initial speed
*April 18, 2011*

**algebra **

Suppose the speedometer in your car reads 55.0 mph also written as mile/hour. What is your speed in m/sec? (1 km = 0.621 mi.) unit factor methond soooo lost on this one please help!!!
*April 3, 2011*