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The Institute for Creation Research (ICR) is a Creationist apologetics institute in Dallas, Texas that specializes in media promotion of pseudoscientific creation science and interpretation of the Genesis creation narrative as a historical event. The ICR adopts the Bible as an inerrant and literal documentary of scientific and historical fact as well as religious and moral truths, and espouses a Young Earth creationist worldview. It rejects evolutionary biology, which it views as a corrupting moral and social influence and threat to religious belief. The ICR was formed by Henry M. Morris in 1972 following an organizational split with the Creation Science Research Center (CSRC).Its work in the field of creation science has been rejected by mainstream science, but has been significant in shaping creationist thought in the United States by introducing creation science through fundamentalist churches and religious schools, and by engaging in public debates against supporters of evolution. The ICR also offers unaccredited graduate level programs in Biblical Apologetics, including a minor in Creation Research. The ICR also operates the ICR Discovery Center for Science & Earth History museum in Dallas, Texas.

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  1. P

    How Does Stopping Water Flow Impact Balance Readings?

    Homework Statement Water from a faucet flows into a glass on a balance. The balance reacts quickly and the reading is increasing steadily. If the water flow is stopped suddently, how will the balance reading change compared to a reading just before the stop? Will the balance reading increase...
  2. S

    UART vs SSI:10Mbps Baud Rate Comparison

    Consider both UART and SSI transmission of data at a Baud rate of 10Mbps. Are they at equal speeds as an entirety, or is one faster than the other? I understand that the Baud rate is the rate of transmission, however, once the bits have been transmitted they undergo further steps to be processed...
  3. S

    Calculating rate constant from a set of data?

    Homework Statement For a reaction, A + H2O --> B + C We're given that d[A]/dt = k[A]n[H3O+]m And also a table of [A] vs time at T1 and pH 1, pH 2; as well as [A] vs time at T2 and the same pH 1 and 2. From this data, we're to find pseudo-n-order rate constants, and then n itself. Next...
  4. B

    MHB Confirm Interest Rate Solution on Total Loan

    A small firm borrows \$1000 from a stockholder at a sim-pleinterest rate of 7.5%. The company secretary lends the firm an additional sum at a simple interest rate of 8.25%. At the end of one year, the firm repays a total of \$3997.75. How much did the secretary lend the firm and what is the...
  5. O

    Op Amp - what is the slew rate limitation?

    Op Amp -- what is the slew rate limitation? Hello i would like to what is the slew rate limitation?? and why it is good to have higher slew rate? thanks
  6. F

    Rate of Reaction: Calculating with Hydrogen Peroxide & Catalase

    Homework Statement Hello all, I'm currently in high school and I'm doing a biology experiment with catalase reacting with hydrogen peroxide. I have measured the total amount of gas produced in terms of mL during the reaction which took place over 30 seconds. Throughout the experiment I'm...
  7. N

    Minimum Rate of Rocket Fuel Consumption

    Homework Statement A rocket which has an exhaust speed of 8.0 km/s is to have a vertical acceleration of 8.0 m/s2. If the initial mass of the rocket is 6.0x106 kg, at what minimum rate must the rocket consume fuel? Homework Equations F = ma F = RVREL The Attempt at a Solution F...
  8. S

    From actual flow rate to normal flow rate

    Hi all, I have developed a simscape model of a pressure regulator valve and I derive valve parameters from the valve datasheet. From the datasheet I get the following valve flow characteristic: http://imagizer.imageshack.us/v2/150x100q90/c/707/3emx.jpg The flow rate is in normal...
  9. Raerin

    MHB How to approximate instantaneous rate of change

    The function for attitude vs air pressure is f(x) = 2100/x 1. Approximate the instantaneous rate of change at 100 millibars a) Use the equation to calculate the point (100,___) I found the y-value to be 21. b) We need two points to calculate a slope, so to approximate the tangent line we use...
  10. S

    Help with engine displacement volume, fuel flow rate and crank angle

    Homework Statement An automobile has a 2.5-litre, four-cylinder, homogeneously charged, direct injected, four-stroke diesel engine. The maximum power output of this naturally aspirated engine is 200 HP at 4000 rpm. By turbocharging, the intake pressure is boosted twice as that for the naturally...
  11. N

    Finding the rate of production of O2 (g) from information given

    Homework Statement 2 KClO3 (s) + heat --> 2 KCl (s) + 3 O2 (g) If 0.20 g of KClO3 (s) decomposes in 2.8 s, at what rate is oxygen O2 (g) released over this time at SATP? The Attempt at a Solution 0.20 g KClO3 x 1 mol/122.5495 g = 0.001632 mol KClO3 Since 0.001632 mol decomposes in 2.8...
  12. S

    Using Fluid mechanics to rate power output of an engine.

    I trying to come up with a way to measure the power output of an engine using a water pump, And I wanted some one to go over my math and check for flaws in my thoughts. My idea is to measure the flow rate and the pressure of the output of the water pump. Using this math to solve for power...
  13. E

    Rate of Change: Angle of Elevation

    Homework Statement A balloon is being tracked from an observation point 0.42 mi from its launch site. Both the launch site and observation point are on level ground. How fast is the angle of elevation to the top of the balloon increasing at the instant it is 20°, if the balloon is rising...
  14. karush

    MHB *Volume of a cone change of rate of volume with respect to h and r

    (a) Find the rate of change of the volume with respect to the height if the radius is constant vol of right circular cone is $$V=\frac{1}{3} \pi r^2 h$$ from this $$h=\frac{3V}{\pi r^2}$$ $$\frac{dh}{dt}=\frac{3}{\pi r}\frac{dV}{dt}$$ $$\frac{\pi r}{3}\frac{dh}{dt}=\frac{dV}{dt}$$ not...
  15. U

    Estimate the flow rate and speed of the water going into the turbine

    Homework Statement Run-of-the-river projects harness power from the natural flow and elevation drop of a river. In the Brandywine project, water is diverted from the river into a pipe (r=0.75 m) in which it flows down the hill, through the turbine, and returns to the river. The project at...
  16. C

    Relationship between radiation flux and count rate of a scintillator

    If the radiation flux is calculated as: F = \frac{L}{2*pi*r^{2}} where L is the luminosity of the source and r is the distance from the source and the count rate of a scintillator \frac{number-of-scintillations}{time} What is the relationship between them? There obviously should be one, as...
  17. P

    Derivatives and rate of change

    1. A ladder 10 ft long rests against a vertical wall. Let θ be the angle between the top of the ladder and the wall and let x be the distance from the bottom of the ladder to the wall. If the bottom of the ladder slides away from the wall, how fast does x change with respect to θ when...
  18. M

    Pulsar Orbiting another body, doppler shifted pulse rate problem

    Hey all, new to the forum. Had a tough question that I was trying to work out about an orbiting pulsar and the doppler shifted pulse period. So, if we have a pulsar orbiting some central object in circular orbit, with a constant orbital velocity v, and a pulse period of P_0, how can we write...
  19. M

    MHB What is the rate of change for this function?

    Hi, I am working on a rate of change problem and appear stumped with my calculations. S(T) = (-0.03T^2 + 1.6T - 13.65)^-1 S'(T) = (-1)((-0.03T^2 + 1.6T - 13.65)^-2 (-0.03 (2T) + 1.6)) S'(T) = - (-0.06T + 1.6) / (-0.03T^2 + 1.6T - 13.65)^2 S'(T) = (0.06T-1.6) / (-0.03T^2+1.6T-13.65)^2 = 0...
  20. karush

    MHB Find rate of change of the depth of water when the water is 8 ft deep

    A conical tank (with the vertex down) is $10 \text{ ft}$ across the top and $12 \text{ ft}$ deep. If water is flowing into the tank at rate of $\displaystyle\frac{10 \text{ ft}^3}{\text{min}}$ Find the rate of change of the depth of the water when the water is $8 \text{ ft}$ deep...
  21. M

    Pressure and flow rate relationship

    If I 8000 gpm flowing in a pipe, and know that pressure of the water is 55psig, will the pressure be 27.5psig if the flow rate through the same pipe drops to 4000gpm.
  22. karush

    MHB Find the rate of change of the distance between the origin and a moving point

    Find the rate of change of the distance between the origin and a moving point on the graph of $$y=\sin{x} \text{ if } \frac{dx}{dt}=\frac{2 \text{cm}}{\text {sec}}$$
  23. karush

    MHB Volume Rate of Change: Understanding Math

    on b) I think this is the point they wanted us to get hope answers are correct its an even problem # so no ans in bk.
  24. karush

    MHB Rate of Change in Cone: $$\frac{\text{in}^3}{min}$$

    if correct? wasn't sure if $$\pi$$ should be in answer since answer is in$$\frac{\text{in}^3}{min}$$
  25. P

    Please review a rate of decay problem for me

    Thank you for taking the time to read my thread. I do not agree with the TA's correction of my quiz and would appreciate if someone could give it a look before I approach him about it. Homework Statement Cobalt-60 has a half-life of 5.24 years. How long would it take for a 100 mg sample of...
  26. S

    Probability rate of calculation

    Hi all I'm sure this has been asked before and I'm hoping someone be kind enough to direct me to the answer. Which is probably 'you're question is nuts' :) Particles interact with each other and this affects the probability of where they are? Right so far I hope. This probability has to be...
  27. S

    Flow rate vs pressure relationship in a hydraulic cylinder

    Hi all, I need to model an hydraulic cylinder with simulink and to control it according to some rules. What I don't understand is to find a relationship between the flow rate and pressure inside it. Any suggestion is appreciated. Thanks
  28. Suwailem

    UP regarding value of a field and its rate of change

    I am just a hobbyist and try to learn for myself. I understand that the value of a field and its rate of change play the same role of position and momentum of a particle with respect to Uncertainty Principle, i.e. both pairs are conjugate variables. My question is: does the rate of change of...
  29. N

    What is the rate of change of amplitude for standing waves with respect to x?

    Equation of standing waves→ y=Asinkxcosωt What do i get if i differentiate the above equation with respect to "x" ? Do i get the rate of change of amplitude when i put t=0?
  30. MarkFL

    MHB Find Rate Water is Pumped into Tank | NatyBaby's Question at Yahoo Answers

    Here is the question: I have posted a link there to this topic so the OP can see my work.
  31. N

    Calculating Rotation Rate for a Diver Jumping from 13m High Tower

    Homework Statement A diver jumps from a 13m high tower, and hopes to complete 212 somersaults. what should be the rotation rate be Homework Equations The Attempt at a Solution 13 m = (1/2)(9.81 m/s²)(t²) t = 1.628 s ω = 2.5 rev / 1.628 s ω = 1.53 rev/s I'm still...
  32. K

    Geiger counter unaccounted jump in count rate

    I am in a lab class and we are currently measuring count rates for a specific source. Yesterday we ran a program that runs 3 second gate times on a CS-147 source with a voltage of 500v running through the detector, and a threshold of .5v on the counter. This 3 second gate time was to be repeated...
  33. MarkFL

    MHB Rate of Change of Plane's Distance from Radar Station - Gina's Question

    Here is the question: I have posted a link there to this topic so the OP can see my work.
  34. Q

    Can We Slow Down an Object's Inertia to See It Age Faster Than Us?

    Hi PF, I am trying to get a good explanation regarding time dilation and how it works. I want to understand why we can't slow an objects inertia down enough to see it age faster than we age at our velocity. I will try to use a reference which is understandable to everyone. So, an easy...
  35. W

    SAR (special absorption rate) & frequency

    Hi we know the relation between wavelength, frequency and energy : The greater the energy, the larger the frequency and the shorter (smaller) the wavelength -> E=h\upsilon On the other side, SAR is common property that measures absorbed energy. Now if we calculating SAR for human brain...
  36. T

    Help In understanding Rate Of Change in mm per sec

    Hi everyone Firstly this is not a homework question, i work in transport engineering. ( i do study part time which is why i sometimes post in the homework section) Now to the problem. I am trying to understand how to solve this problem, i already know the answer. A train is traveling...
  37. D

    Rate of flow, or velocity of fluid?

    I was looking at a site which described the classic demonstration to illustrate how water pressure increases with depth (shown by punching three holes, one above the other separated by a few centimeters, in a container of water): "The smaller the holes, the greater the rate of flow from the...
  38. D

    What is the leak rate of a UHV system at higher pressure?

    I'm trying to figure out some things regarding leak rates. I have a system which is constructed to adhere to UHV standards (total leak rate < 10^-10 Torr*L/s), baked out and evacuated to 10^-9 Torr, and then backfilled to about 600 Torr with N2 and Xe. So, there's a leak of air from the outside...
  39. D

    Rate of Deceleration & Time Required

    Homework Statement A truck traveling at 40.0 m/s decelerates uniformly to 20.0 m/s over a distance of 100 m. Determine the rate of deceleration and the time required for the truck to travel the 100 m. Homework Equations Deceleration=(original velocity-final velocity)/Time The...
  40. R

    Calculating Rate of Heat Transfer for Refrigerator Evaporators

    Dear all, I am a bit stuck trying to find out how heat is transferred through an evaporator in a refrigerator. I was using Newton's law of cooling before I realized there are more complexities in the equation as the refrigerant is in a mixture of saturated liquid and saturated gas in the...
  41. H

    Actinide Burner Conversion Rate: Fissile vs. Transuranic

    Folks, I was reading the Cacuci Handbook of Nuclear Engineering, and he defines two times the conversion rate, once as: C= fissile produced/fissile consumed but later as : C= transuranic produced/transuranic consumed and said that the breeding rate is the former but for fissile...
  42. S

    Accelerating Atomic Decay Rate of Unstable Elements

    Is there any thing that could, or any way to increase the atomic decay rate of already unstable elements, such as the radio active elements. magnetically or otherwise, even if the thought is only plausible or otherwise theory, I wouldn't mind hearing it. A thought accord to me, what if...
  43. R

    Matter ingestion rate of blackholes

    Sorry if my questions are rather naive, this is my first post on this forum. Whilst burshing my teeth, I was watching water drain from the sink and came up with a few rather curious questions. Does the ingest of matter suggest by black holes suggest that the pressure of our universe is...
  44. T

    A question relating to expansion rate of the Universe

    1. Forgive me for this novice question, but can variation in the expansion rate of the universe, be partially explained by an increasing number of stars turning mass into energy, hence reducing gravitational attraction between galaxies, and at the same time applying radiation pressure (a small...
  45. K

    Difference between Reaction Rate and Rate Law?

    Lets say you have the reaction aA + bB => cC + dD The rate of the reaction is given by the change in initial concentration over the change in time. -\frac{\Delta \left[ A \right]}{a\Delta T}\; =\; -\frac{\Delta \left[ B \right]}{b\Delta T}\; =\; \frac{\Delta \left[ \mbox{C} \right]}{c\Delta...
  46. mrspeedybob

    Antimater anhilation rate on macroscopic scales

    I'm sure we've all envisioned bombs made by allowing macroscopic quantities of antimatter to react with ambient matter thereby releasing vast quantities of energy in very short time scales. I'm wondering how realistic this actually is. Suppose I have a 1 kg chunk of anti-iron in the middle of...
  47. steves1080

    What is the boil-off rate of a saturated cryo liquid inside a vessel?

    Note: this is not a homework question; this is strictly conceptual in understanding the equations at work in this scenario. The tank is vacuum-insulated, the liquid is saturated, and the vents have just been opened in order to vent down the ullage pressure. My question is simply how do you...
  48. S

    Heat Transfer Coefficient to Air Flow Rate

    Hey all, I'm trying to simulate a simple chip-heatsink situation in SolidWorks using their thermal modeling suite. I have found an ideal set of parametric values for the chip to work at a reasonable temperature, but I need to figure out what the convection coefficient means in terms of air flow...
  49. N

    What is the Recommended Ventilation Rate for a Brewery?

    Hi All, I'm designing an exhaust system in brewery. Does anyone know the recommended air changes (ventilation rate)? My concern is the elevated level of carbon dioxide during the fermentation process. I'm planing on exhausting the air thru sidewall propeller fans and make-up the air thru roof...
  50. S

    What is the heat flow rate [ ]?

    "What is the heat flow rate [...]?" Homework Statement The problem is: "A copper tube (length, 3.0 m; inner diameter, 1.500 cm; outer diameter, 1.700 cm) extends across a 3.0-m long vat of rapidly circulating water maintained at 20 °C. Live steam at 100 °C passes through the tube. (a)...
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