Wednesday

April 23, 2014

April 23, 2014

Number of results: 17,332

**Physics**

At t = 0, a 785 g mass at rest on the end of a horizontal spring (k = 125 N/m) is struck by a hammer, which gives the mass an initial speed of 2.70 m/s. (a) Determine the period of the motion. T= .4979201367s Determine the frequency of the motion. f= 2.008354 Hz (b) Determine ...
*Tuesday, December 7, 2010 at 7:43pm by Anon*

**Physics**

The equation of a transverse wave traveling along a very long string is given by y = 5.2 sin(0.013π|x + 4.7π|t), where x and y are expressed in centimeters and t is in seconds. (a) Determine the amplitude. (b) Determine the wavelength. (c) Determine the frequency. (d...
*Saturday, December 3, 2011 at 8:20pm by Kyle*

**American Goverment**

What is the main function of the State Department? A. to determine foreign policy B. to determine domestic policy C. to determine financial policy D. to determine military policy ?
*Thursday, February 16, 2012 at 8:24am by lalt*

**MATH**

f(x)=3x+2 g(x)=-2x+1 a) Write an equation for ( f+ g)(x) b) Determine (f+g)(6) c) Determine (fg)(6) d) Determine the domain of (f/g)(x)
*Friday, July 19, 2013 at 5:52pm by ROBIN*

**Physics**

A 285-kg load is lifted 22.0 m vertically with an acceleration a=0.170 g by a single cable. Determine the tension in the cable. (N) Determine the net work done on the load. (J) Determine the work done by the cable on the load. Determine the work done by gravity on the load. ...
*Sunday, October 17, 2010 at 7:11pm by Eden*

**PHysics**

A 250 kg load is lifted 23 m vertically with an acceleration a = 0.185g by a single cable Determine the tension of the cable. =2900N Determine the net work done on the load. =? Determine the work done by the cable on the load. =66700 J Determine the work done by gravity on the...
*Friday, February 25, 2011 at 12:59am by Arthur*

**Physics**

A 240 g mass is attached to a spring of constant k = 5.4 N/m and set into oscillation with amplitude A = 26 cm. (a) Determine the frequency of the system in hertz. (b) Determine the period. (c) Determine the maximum velocity of the mass. (d) Determine the maximum force in the ...
*Sunday, November 11, 2012 at 8:48pm by Jill*

**chemistry**

i do not understand how to do these and i have a question on my test tomorrow on this stuff can someone explain to me how to do this? for each of the following molecules draw the lewis structure, determine the shape, determine the polarity, and determine the kinds of ...
*Wednesday, May 18, 2011 at 4:11pm by brittney *

**Ap physics**

Four resistors are connected to a battery with a terminal voltage of 12.0 V, (R1 = 40.0 , R2 = 80.0 , R3 = 140.0 and R4 = 15.0 ) (a) Determine the equivalent resistance for the circuit. 1 (b) Determine the current in the battery. 2 V (c) Determine the current in the 40.0 ...
*Friday, May 11, 2012 at 11:41am by Amelia*

**Physics**

Draw the figure. Next, determine the critical angle. Now start to use a geometrical plot to trace the ray. At each side interaction, determine the angle: below critical or not, determine.
*Wednesday, November 14, 2007 at 7:47am by bobpursley*

**Physics**

A 20 mH inductor in series with a resistance of 55 ohms is connected to a source whose voltage is = 310 V cos 150πt, where t is in seconds. (a) Determine the maximum current in the circuit. (I solved this already, I=5.63A) (b) Determine the maximum and rms voltages across...
*Wednesday, April 17, 2013 at 2:30pm by T*

**Physics**

A 20 mH inductor in series with a resistance of 55 ohms is connected to a source whose voltage is = 310 V cos 150πt, where t is in seconds. (a) Determine the maximum current in the circuit. (I solved this already, I=5.63A) (b) Determine the maximum and rms voltages across...
*Wednesday, April 17, 2013 at 2:31pm by T*

**Physics**

A 20 mH inductor in series with a resistance of 55 ohms is connected to a source whose voltage is = 310 V cos 150πt, where t is in seconds. (a) Determine the maximum current in the circuit. (I solved this already, I=5.63A) (b) Determine the maximum and rms voltages across...
*Wednesday, April 17, 2013 at 2:44pm by T*

**physics i really need help :(**

A projectile is fired with an initial speed of 61.3m/s at an angle of 31.5° above the horizontal on a long flat firing range. a)Determine the maximum height reached by the projectile. b)Determine the total time in the air. c)Determine the total horizontal distance covered (...
*Saturday, November 24, 2012 at 8:19pm by juanita*

**trig**

2. Determine the amplitude of: y= cos x 3. Determine the domain of: y= 4 sin x 4. Determine the range of: y= - sin x 5. Determine the period of: y= 3 sin ðx 6. Determine the phase shift of: y= 3 cos (2x -1) 7. Solve the following equation for indicated value of x: y= 4 sin x; ...
*Thursday, December 17, 2009 at 12:00pm by Bernice*

**Physics**

A 0.52kg mass at the end of a spring vibrates 4.0 times per second with an amplitude of 0.15m . a. Determine the velocity when it passes the equilibrium point. b.Determine the velocity when it is 0.12m from equilibrium c.Determine the total energy of the system.
*Sunday, October 27, 2013 at 1:58pm by Juanita*

**Physics**

A 0.70 kg mass at the end of a spring vibrates 4.0 times per second with an amplitude of 0.15 m. Determine the velocity when it passes the equilibrium point. Determine the velocity when it is 0.11 from equilibrium. Determine the total energy of the system.
*Thursday, December 2, 2010 at 9:17pm by Eden*

**Someone PLEASE HELP! (Chemistry)**

Use the following problem to: Outline how to determine the limiting agent. Determine the excess reactant and how much is left over. Determine the amount of each of the products produced. CaSO4 + AuF3 = CaF2 + Au2(SO4)3 Start with 15 grams of each reactant.
*Wednesday, January 9, 2013 at 10:07pm by Shelbie*

**math**

What are the equation on these 1. Determine the amplitude of y = -16 cos (x) 2. Determine the amplitude of = -sin (x) 3. Determine the domain of = -5 cos (x) 4. Determine the range of y = -10 sin (x) 5. Determine the period of y = -5 cos (2ðx) 6. Determine the phase shift of y...
*Thursday, December 17, 2009 at 12:42pm by Bernice*

**Physics**

A block of mass 2.30 kg is pushed 2.38 m along a frictionless horizontal table by a constant 16.0 N force directed 26.9o below the horizontal. Determine the work done by the applied force. Determine the magnitude of the normal force exerted by the table. Determine the ...
*Tuesday, October 1, 2013 at 9:59pm by Chris*

**physics**

A block of mass 2.40 kg is pushed 2.09 m along a frictionless horizontal table by a constant 18.6 N force directed 23.7o below the horizontal. Determine the work done by the applied force. Determine the magnitude of the normal force exerted by the table. Determine the ...
*Thursday, October 3, 2013 at 12:12am by beccs*

**Physics urgent help needed!**

Suppose the position of an object is given by ->r(vector) = (3.0t^2*ihat - 6.0t^3*jhat)m. Where t in seconds. Determine its velocity ->v as a function of time t. Determine its acceleration ->a as a function of time t. Determine ->r at time t = 2.5 s. Determine ->...
*Sunday, September 13, 2009 at 6:25pm by How do you do this?*

**Physics**

A satellite of mass 5700 orbits the Earth and has a period of 6000 . a) Determine the radius of its circular orbit. b) Determine the magnitude of the Earth's gravitational force on the satellite. c) Determine the altitude of the satellite.
*Friday, September 24, 2010 at 9:05pm by Jim*

**PHysics**

Determine the tension of the cable. =2900N Closer to 2906, but OK Determine the net work done on the load. (2900N - 2450)*23 m = 10,350 J Determine the work done by the cable on the load. =66700 J OK Determine the work done by gravity on the load. -2450*23 = 56,350 J Determine...
*Friday, February 25, 2011 at 12:59am by drwls *

**Calculus**

consider the function y = 2sinx a) determine dy/dx b) calculate the exact value of x for which the slope of the tangent to the graph is √2 in the interval [0, pie] c) determine the equation of the tangent in part (b). d) determine the y-intercept of the tangent in part (c).
*Thursday, June 21, 2012 at 2:48pm by Sarah Berkley Adamson*

**physics**

A 380- piano slides 3.8 down a 22 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. a.Determine the force exerted by the man. b.Determine the work done by the man on the piano. c.Determine the work done by the force of gravity. d...
*Monday, June 25, 2012 at 8:52pm by Anonymous*

**Physics**

A 103.0 g mass attached to a horizontal spring oscillates at a frequency of 2.52 Hz. At t = 0 s , the mass is at x = 6.31 cm and has a velocity of -11 cm/s. Determine the phase constant in rad. Determine the total energy in J. Determine the position (in cm) at t = 1.55 s.
*Wednesday, December 7, 2011 at 8:58pm by Me*

**physcis**

In the diagram shown the pulley at frictionless and the cylindrical load weighs 800. A. Determine the tension in the cable. B. Determine the horizontal component of the reaction of the pin A. C. Determine the vertical component of the reaction of the pin A.
*Thursday, February 3, 2011 at 8:00am by ali*

**phi103**

Truth tables can? display all the possible truth values involved with a set of sentences. determine what scientific claims are true. determine if inductive arguments are strong. determine if inductive arguments are weak
*Wednesday, July 6, 2011 at 6:42am by suzette*

**PH103**

Truth tables can a. display all the possible truth value involved with a set of sentences. b.determine what scientific claims are true. c.determine if inductive arguments are strong. d.determine if inductive arguments are weak.
*Sunday, February 19, 2012 at 7:30pm by Mary *

**chem lab (webwork)**

Your question is tough to decipher. The basics. moles = M x L. Determine moles acid. Determine moles base. Determine which is in excess. Determine the salt produced. For solutions in which the salt is not hydrolyzed, use the reactant in excess and calculate H^+ or OH^- ...
*Tuesday, April 13, 2010 at 9:36pm by DrBob222*

**logic**

Truth tables can (Points : 1) display all the possible truth values involved with a set of sentences. determine what scientific claims are true. determine if inductive arguments are strong. determine if inductive arguments are weak.
*Monday, April 9, 2012 at 2:53pm by yola*

**phi103**

Truth tables can (Points : 1) display all the possible truth values involved with a set of sentences. determine what scientific claims are true. determine if inductive arguments are strong. determine if inductive arguments are weak.
*Monday, February 18, 2013 at 9:53pm by Anonymous*

**Phi103**

3. Truth tables can (Points : 1) display all the possible truth values involved with a set of sentences. determine what scientific claims are true. determine if inductive arguments are strong. determine if inductive arguments are weak.
*Monday, December 12, 2011 at 3:37pm by Mallory*

**physics**

A block of mass 2.50 kg is pushed 2.80 m along a frictionless horizontal table by a constant 12.0 N force directed 25.0° below the horizontal. (a) Determine the work done by the applied force. J (b) Determine the work done by the normal force exerted by the table. J (c) ...
*Wednesday, October 10, 2012 at 11:24pm by monic*

**physics**

A block of mass 2.50 kg is pushed 2.80 m along a frictionless horizontal table by a constant 12.0 N force directed 25.0° below the horizontal. (a) Determine the work done by the applied force. J (b) Determine the work done by the normal force exerted by the table. J (c) ...
*Friday, October 12, 2012 at 12:10am by monic*

**Phsyics**

A projectile is fired with an initial speed of 61.3m/s at an angle of 44.2∘ above the horizontal on a long flat firing range. (a) Determine the maximum height reached by the projectile. (b) Determine the total time in the air. (c) Determine the total horizontal distance ...
*Sunday, September 15, 2013 at 8:46pm by Tucker*

**physics**

At t= 0, a particle starts from rest at x= 0, y= 0, and moves in the xy plane with an acceleration ->a (vector) = (4.0ihat+ 3.0jhat)m/s^2. Assume t is in seconds. Determine the x component of velocity as a function of time t. Determine the y component of velocity as a ...
*Sunday, September 13, 2009 at 6:18pm by Physics*

**Chemistry**

Do the following: Write the equation and balance it. Calculate moles Pb^2+ and IO3^- I expect one is a limiting reagent; determine which and how much of the Pb(IO3)2 will ppt. Determine which reagent is in excess and how much excess. Use Ksp, along with the excess common ion, ...
*Monday, March 5, 2012 at 10:48pm by DrBob222*

**Pre-Algebra**

Okay so I have no clue how to determine if a relation is a function. Here is an example can you tell me how to determine this? D: Example: Determine whether the relation is a function. {(-5,5), (-2,5), (0,5), (2,5)} Thanks in advance
*Monday, May 2, 2011 at 10:04am by Cheryl*

**chemistry**

It's true F2 was in the original problem but only as a means of telling you what reacted. F2 is simply a synonym for fluorine. To determine the formula, we determine the mols Ni and mols F (not F2), determine the ratio of the two and that gives us the empirical formula.
*Wednesday, November 12, 2008 at 9:12pm by DrBob222*

**AP Chemistry**

HA ==> H^+ + A^- Solve this equation to determine the (HA) at pH 4.50. As a separate problem, plug in pH 5.000 and determine the (HA) for that value. Then use the dilution formula using 67.0 mL of the first to determine how much to dilute it. c1v1 = c2v2 Post your work if ...
*Tuesday, February 7, 2012 at 7:19pm by DrBob222*

**physics**

A child standing on the edge of a sheer cliff wall throws a rock down towards the ground below. The rock is thrown 67° below the horizontal at a speed of 22 m/s & lands 43 m from the base of the cliff wall. Ignore air drag. A.) Determine how long the rock was in the air. s B...
*Thursday, September 6, 2012 at 3:15pm by Cindy*

**Math**

F(x)=sqrt(9-3x) determine the domain of f How would I break that out to determine f
*Monday, October 27, 2008 at 11:50am by Chris*

**Geometry**

How do I determine if a quadrilateral is a parallelogram? Does anyone know the formula to determine this because I have to justify my answers. Thanks.
*Sunday, December 11, 2011 at 7:28pm by Amanda*

**Calculus**

1. For a differentiable function f, f' be the funcyion defined by f'(x) lim h->0 =f(x+h)-f(x-h)/(h) a: Determine f'(x) for f(x)=x b: Determine f'(x) for f(x)=x^2
*Monday, October 29, 2012 at 2:31am by Rudy*

**com**

I am trying to understand how to determine if a source is credible What do I look for to determine this
*Thursday, December 9, 2010 at 8:26pm by Hi*

**Geometry**

Right triangle ABC has one leg of length 12 in and a hypotenuse of length 13 inch. A) Determine the length of the other leg B) Determine the perimeter of the triangle. C)Determine the area of the triangle. Must show work as well as answers for each of the above.
*Thursday, February 20, 2014 at 11:17pm by Boo*

**chemistry**

How can you determine the mass of Cu after a chemical reaction, in order to determine the concentration of CuSO4
*Thursday, March 8, 2007 at 6:24pm by Luna*

**Repost physics**

Suppose the position of an object is given by ->r(vector) = (3.0t^2*ihat - 6.0t^3*jhat)m. Where t in seconds. Determine its velocity ->v as a function of time t. Determine its acceleration ->a as a function of time t. Determine ->r at time t = 2.5 s. Determine ->...
*Tuesday, September 15, 2009 at 1:42am by Han*

**calc**

Average daily temp,y, is y=45-23cos(2pi(x-32)/365), where x is time in days, x=1, corresponds to Jan 1 and y is temp in degrees F. Determine the period of the function. Determine critical numbers, over one period. Determine relative extrema, what does relative extrema represents
*Saturday, October 16, 2010 at 7:10pm by t*

**Chemistry**

Determine the pH of a .50 M solution of H2S04 and also determine the concentration of the sulfate ion (SO42-)
*Sunday, July 31, 2011 at 5:27pm by Hoot*

**Math**

Can someone please help me. A single card is selected from a standard 52-card deck. B= the drawn card is black; R= the drawn card is red; Q= the drawn card is a queen; F= the drawn card is a face card ( a king, queen or jack). Without finding the probabilities, determine if B ...
*Saturday, December 1, 2012 at 3:17pm by James*

**Probability**

Can someone please help me. A single card is selected from a standard 52-card deck. B= the drawn card is black; R= the drawn card is red; Q= the drawn card is a queen; F= the drawn card is a face card ( a king, queen or jack). Without finding the probabilities, determine if B ...
*Saturday, December 1, 2012 at 7:34pm by James*

**Probability**

Can someone please help me. A single card is selected from a standard 52-card deck. B= the drawn card is black; R= the drawn card is red; Q= the drawn card is a queen; F= the drawn card is a face card ( a king, queen or jack). Without finding the probabilities, determine if B ...
*Sunday, December 2, 2012 at 2:00pm by Kelsey*

**calculus **

Given f(x)= (2x^2 −5x+2) / ( 3x^2 −10x+3) a. find the derivative f
′
(x)
, b. determine the open intervals of increase of f(x)
c. determine the open intervals of decrease of f(x)
d. determine the local maximum. Give your answer...
*Wednesday, October 6, 2010 at 1:37pm by baby*

**chemistry**

Determine the oxidation state for the SECOND element in each of the following: NaF _____ Could you give me the steps to determine the answer
*Thursday, September 30, 2010 at 6:06pm by kelly*

**Determine value of X**

Given the functions f(x)=sqrt[x] and g(x)=x+1, determine all possible values of x for which f(g(x)) = g(f(x)). Show steps please, thanks a lot!
*Thursday, May 17, 2012 at 2:55pm by Anonymous*

**Chemistry PLEASE HELP:(**

I really need someone to explain this stoichiometry problem. Directions: Outline how to determine the limiting agent. Determine the excess reactant and how much is left over. Determine the amount of each of the products produced. CaSO4 + AuF3 = CaF2 + Au2(SO4)3 Start with 15 ...
*Friday, January 11, 2013 at 11:02pm by Shelbie*

**chemistry**

Find the Ksp of KI at 30C. Ksp = [K{+}]*[I{-}] That will determine the mole concentration of dissolved KI. Multiply by volume (in L) and molecular mass to determine the mass. Subtract that from the mass of supersaturated KI to determine the mass of precipitate.
*Thursday, September 19, 2013 at 4:14pm by Graham*

**Math**

Determine whether ~ [ ~(p v ~ q) <-> p v ~ q. Explain the method(s) you used to determine your answer i would use a truth table
*Wednesday, January 24, 2007 at 6:40pm by Prince*

**Physics**

Use the initial vertical velocity to determine the time in air. From that, determine the range. I will be happy to critique your thinking or work
*Monday, September 3, 2007 at 5:34pm by bobpursley*

**physics**

A 0.50 kg mass at the end of a spring vibrates 6.0 times per second with an amplitude of 0.18 m. (a) Determine the velocity when it passes the equilibrium point. 1Your answer is incorrect. m/s (b) Determine the velocity when it is 0.02 m from equilibrium. 2 m/s (c) Determine ...
*Wednesday, April 21, 2010 at 11:10am by sway*

**Physics**

Q Exactly 2.7s after a projectile is fired into the air from the ground ,it is observed to have a velocity v = (8.8i+4.5 j) m/s where the x-axis is horizontal and the y axis is positive upward . a)Determine the horizontal range of the projectile b)Determine the maximum height ...
*Saturday, September 1, 2012 at 8:04am by Nikitha*

**Physics**

A juggler tosses a 0.4kg ball straight up at 8m/s, and then catches it at the same height . a. determine the acceleration on the way up and down b. determine the total amount of time spent in the air by the ball. (hint: you know the displacement) c.determine the velocity of ...
*Tuesday, November 19, 2013 at 5:26pm by Jake*

**Physics**

A juggler tosses a 0.4kg ball straight up at 8m/s, and then catches it at the same height . a. determine the acceleration on the way up and down b. determine the total amount of time spent in the air by the ball. (hint: you know the displacement) c.determine the velocity of ...
*Tuesday, November 19, 2013 at 5:30pm by Jake*

**chemistry**

NaOH + HCl ==>NaCl + HOH Strong base + strong acid. calculate mols NaOH. M x L = ?? calculate mols HCl. M x L = ?? Determine mols NaCl and HOH produced. Determine excess NaOH OR HCl and pH from that. For NaOH + HC2H3O2 ==> NaC2H3O2 + HOH Strong base + weak acid. ...
*Monday, May 5, 2008 at 5:31am by DrBob22*

**physics**

an electron with a mass of 9.11 x 10^-31 kg is accelerated from rest across a set of 150 V and are separated by 0.80 cm. a) determine the kinetic energy of the electron after it crosses between the plates.( ans 2.4 * 10^-17 j) b) determine the final speed of the electrons. (...
*Saturday, January 12, 2013 at 12:53pm by David *

**Physics-calc**

Suppose the position of an object is given by ->r(vector) = (3.0t^2*ihat - 6.0t^3*jhat)m. Where t in seconds. Determine its velocity ->v as a function of time t. Determine its acceleration ->a as a function of time t. Determine ->r at time t = 2.5 s. Determine ->...
*Saturday, September 12, 2009 at 1:31pm by Hannah*

**science**

NaOH + HCl ==> NaCl + HOH strong base + strong acid. Determine mols NaOH = M x L = ?? Determine mols HCl = M x L = ?? Determine which reactant is in excess, then calculate molarity NaOH or HCl and pH from that. Post your work if you get stuck.
*Monday, May 5, 2008 at 3:23am by DrBob22*

**Calc **

1. Differentiae each function a) Y=-3x^2+5x-4 b) F(x) = 6/x-3/x^2 c) F(x)=(3x^2-4x)(x^3+1) 2. Determine the equation of the tangent line to the curve y=2x^2-1 at the point where x=-2 3. Evaluate, rounding to two decimal places, If necessary a) In 5 b) b) in e^2 c) (ine)^2 4. ...
*Monday, June 11, 2012 at 3:55pm by Bobby *

**Chemistry**

Determine which is the limiting reagent using simple stoichiometry. I assume that is -230 kJ/MOLE CS2. Then use proportions to determine delta H.
*Thursday, November 1, 2007 at 5:40pm by DrBob222*

**Math**

Let f(x) = 3(x-1)^3 + 4(x-1)^2 + 2(x-1) -7 (a) Determine f'''(1) without taking any derivatives. Explain your method. (b) Determine the general Taylor polynomial of f aobut c =2 by computing any for each k, using the formula above for f(x).
*Thursday, November 13, 2008 at 10:47pm by Paul*

**MATH**

Let f(x) = 3(x-1)^3 + 4(x-1)^2 + 2(x-1) -7 (a) Determine f'''(1) without taking any derivatives. Explain your method. (b) Determine the general Taylor polynomial of f aobut c =2 by computing any for each k, using the formula above for f(x).
*Friday, November 14, 2008 at 3:14am by PAUL*

**6th grade science project**

First you need to determine you hypothesis. What do you think might happen with the temperature change? This will help you to determine what your dependent variable(s) is (are).
*Saturday, February 12, 2011 at 10:31pm by PsyDAG*

**Economic**

If I am selling something, do I determine how much profit I will make? Do consumers determine how much profit I will make? or Will government determine how much profit I will make? Just think about Apple, why are they so successful?
*Wednesday, September 26, 2012 at 2:45pm by Anonymous*

**Physics**

A man jumps straight up at 5m/s. a. Determine the time the man is in the air. b. Determine the maximum height the man would reach. c. As he jumps, a jerk pushes him in the back, giving him a velocity of 12m/s. determine the range of the man. d. Solve for the resultant velocity...
*Monday, November 19, 2012 at 8:59pm by Carrie*

**Statistcs**

Please help I am so lost and my book shows me nothing helpful. You are interested in the incomes of your customers. A sample of 100 customer incomes yields a standard deviation of $141,421 and a mean of $300,000: a. Determine the point estimate b. Determine the interval ...
*Friday, August 9, 2013 at 12:30pm by Rose*

**Physics**

Two objects with masses of 1.00 kg and 7.00 kg are connected by a light string that passes over a frictionless pulley as in the figure below. (a) Determine the tension in the string. (b) Determine the acceleration of each object. (c) Determine the distance each object will ...
*Tuesday, May 3, 2011 at 4:57pm by Dani*

**physics**

Two objects with masses of 3.00 kg and 7.00 kg are connected by a light string that passes over a frictionless pulley (a) Determine the tension in the string. .N (b) Determine the magnitude of the acceleration of each mass. .m/s2 (c) Determine the distance each mass will move ...
*Friday, October 14, 2011 at 11:36am by savannah*

**algebra**

y=2x^2+5x-3 a)determine the x-intercepts b)determine the vertex c)determine the axis of symmetry d)determine the maximum or minimum value, stating whether it is a maximum or a minimum e)determine the range can i get the eqations so i can try them myself? For a and b, there is ...
*Thursday, January 18, 2007 at 6:13pm by Shay*

**Physics**

You dip your finger into a pan of water twice each second, producing waves with crests that are separated by 0.15 m. a) determine frequency of these water waves in units of Hz?? b) determine the period of these water waves in units of s. ?? c) determine the speed of these ...
*Tuesday, February 24, 2009 at 9:50pm by Bob*

**math help**

Please help me on these I have lost the tables that I would need to answer them or at least the ones I think are used. Consider the following. (Give your answers correct to four decimal places.) (a) Determine the level of confidence given the confidence coefficient z(á/2) for ...
*Saturday, June 22, 2013 at 10:41pm by Tommy7*

**Sequences**

Show full steps: 1a) Determine the formula for the nth term for 7,12,17... b) Determine the value of the 19th term,t19. 2) Determine the number of terms in the sequence 4,12,36...2125764. Show all necessary steps. There are 15 more questions but I think if you help me with ...
*Saturday, May 25, 2013 at 10:42am by Mercy*

**Calculus**

Use normal vectors to determine the intersection, if any, for each of the following groups of three planes. Give a geometric interpretation in each case and the number of solutions for the corresponding linear system of equations. If the planes intersect in a line, determine a...
*Wednesday, July 9, 2008 at 5:32pm by Nicole*

**College algebra!**

For the linear function f(x) = 5x + 3 (a) Determine the slope and y-intercept (b) Use the slope and y-intercept to graph the linear function. (c) Determine the average rate of change of the function (d) Determine whether the linear function is increasing, decreasing, or constant.
*Friday, March 15, 2013 at 10:41am by Jenn*

**Physics **

An electron with a mass of 9.11 *10^31 Kg is accelerated from rest across a set if parallel plates that have a potential difference of 150 v and are separated by 0.80 cm A) determine the kinetic energy of the electron after it crosses between the plates. (Ans 2.4 * 10-17 ) B) ...
*Thursday, January 10, 2013 at 8:59am by Lilia *

**Physics**

A pendulum 1.70m long is released (from rest) at an angle 30 degrees. 1. Determine the speed(m/s) of the 60.0g bob at Theta = 15. 2. Determine the tension in the cord at the lowest point Theta = 0. 3. Determine the tension in the cord at Theta = 15. A formula would be ...
*Wednesday, October 17, 2012 at 7:40pm by Jordan*

**General Physics Pt.2**

A proton is projected in the positive x direction into a region of uniform electric field E = -5.30*10^5 i N/C at t = 0. The proton travels 6.50 cm as it comes to rest. (a) Determine the acceleration of the proton. -5.07E13 (-i) m/s^2 (b) Determine the initial speed of the ...
*Sunday, January 29, 2012 at 4:59pm by LadyJ*

**Calculus grade 12 exam review PLEASE HELP ASAP !!**

PLEASE HELP ME! Exam is in an hour and i need to finish this exam pre-test to help me ! consider the function y = 2sinx a) determine dy/dx b) calculate the exact value of x for which the slope of the tangent to the graph is √2 in the interval [0, pie] c) determine the ...
*Thursday, June 21, 2012 at 3:52pm by Sarah Berkley Adamson*

**Calculus**

Use a specific example then expand to the general case to determine what happens under scalar multiplication. That is, determine if k(a * b) = (ka) *b = a* (kb)? What does this even mean? Merci beaucoup. I am thankful for the help.
*Thursday, July 3, 2008 at 7:39pm by Simone*

**Math**

First determine the points where f'(x) = 0 Then evaluate f''(x) at those same points to determine inflection, concavity and maximum/minimum.
*Thursday, December 4, 2008 at 7:30am by drwls*

**calculus**

Determine the slope of the tangent m, for each of the following functions. Then determine the equation of the tangent line at x=1. a) f(x) = 1/ sqrt of x b) f(x) = 60 - 5t^2
*Sunday, February 14, 2010 at 9:02pm by Anonymous*

**Math**

Determine the remainder of the following polynomial by remainder theorem. x^3-4x^2+x-6 divided by x+2. If x+2 is a factor, determine the remaining factors.
*Monday, December 9, 2013 at 11:28pm by Jessy*

**Math**

When solving a system of equations, how do you determine which method to use? Like how can you determine when to use Elimination, Substitution or Graphing???
*Saturday, December 14, 2013 at 12:58pm by Gabby*

**Vectors**

A triangle has vertices A(2,3,7), B(0,-3,4) and C(5,2,-4) A) determine the largest angle in the traingle b) determine the area of of the triangle pls tell me how to solve the problem
*Friday, May 14, 2010 at 7:17pm by Marie*

**math**

The function f(x)=ax^3-x^3+bx-24 has three factors. Two of these factors are x-2 and x+4. Determine the values of a and b , and then determine the other factor
*Tuesday, October 2, 2012 at 9:13pm by Melissa*

**math**

The function f(x) = ax^3-x^2+bx-24 has three factors. Two of these factors are x-2 and x+4. Determine the values of a and b, and then determine the other factor
*Sunday, October 7, 2012 at 1:29pm by Melissa*

**Pre-Calculus**

1. Find functions f and g so that f[g(x)]=H(x) where H(x)=(1+x^2)^3 2. For f(x)=4x+1 and g(x)=x^2-2x-4, find (g-f)(x) 3. Determine f(x)=x/x^2-4 4. Determine the domain of f in f(x)=10-sqrt3-x
*Tuesday, June 28, 2011 at 11:46pm by kalakalikalakali*

**practice question**

How do i go about solving this one? A cash flow sequence starts in year 1 at $3000 and decreases by $200 each year through year 10. (a) Determine the value of the gradient G; (b) determine the amount of cash flow in year 8; and (c) determine the value of n for the gradient. ...
*Sunday, May 26, 2013 at 3:43am by Aly*

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