Questions Asked on
August 7, 2015

  1. Physics

    If a man weighs 900 N on the earth, what would he weigh on jupiter, where acceleration due to gravity is 25.9 m/s^2?

    asked by Godwin
  2. Math

    Pairs of markings a set distance apart are made on highways so that police can detect drivers exceeding the speed limit. Over a fixed distance, the speed R varies inversely with the time T. For one particular pair of markings, R is 60 mph when T is 8

    asked by Makaila
  3. physics

    A 1000 kg car can accelerate from rest to a speed of 25 m/s in 10 s. What average power must the engine of car produce in order to cause this acceleration? Neglect friction losses

    asked by Muqadas
  4. Math

    For a given interest rate, simple interest varies jointly as the principal and time. If $3000 left in an account for 6 years earned interest of $1260, then how much interest would be earned in 7 years?

    asked by Larry
  5. physics

    A gas at 250K and 15atm has a molar volume smaller than calculated from perfect gas law Calculate: a) the compression factor under these conditions b) the molar volume of gas

    asked by Alice
  6. Math-manipulation of the formula

    Make "i" the subject of the formula A=P(1+i)^n

    asked by Nino5
  7. physics

    a bullet of mass 20g is fired into a block of wood of mass 400g . if the bullut and wood move together with speed of 20ms-1 calclate(i) speed with the bullet hits the wood ii the kinetic energy lost iii state the energy changes involed

    asked by kongo.
  8. Physics

    A meter-long stick is balanced vertically on the ground. It is then made to fall with a gentle nudge. What is the speed of the end of the stick as it hits the floor? Assume the end on the floor does not slip. Treat the stick as a “thin rod.” Really

    asked by Yoyo
  9. MTH 156

    A crew consists of 1 apprentice, 1 journeyman, and 1 master carpenter. The crew receives a check for $6900 for a job they finished.A journeyman makes 300% of what an apprentice makes and a master carpenter makes make 250% of what a journeyman makes. How

    asked by Bella
  10. Mth 156

    A company will need $35000 in 6 years for a new addition. To meet this goal the company deposits money in an account today that pays 6% annual interest compounded quarterly. Find the amount that should be invested to total $35000 in 6 years. The company

    asked by Kimberly
  11. Physics

    a 50 g marble is released from a height 1 m above the floor. Calculate its momentum just before hitting the ground

    asked by Anonymous
  12. economics

    Suppose you are a stock market analyst specializing in the stocks of theme parks, and you are examining Disneyland’s stock. The Wall Street Journal reports that tourism has slowed down in the United States. At Six Flags Magic Mountain in Valencia,

    asked by Anonymous
  13. physics

    Suppose a car is traveling at +15.0 m/s, and the driver sees a traffic light turn red. After 0.405 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 6.00 m/s2. What is the stopping distance of the car, as measured

    asked by sarah
  14. Physics

    A 100 kg load is lowered by means of a cable with a downward acceleration of 5.0 m/s^2. What is the tension in the cable?

    asked by Godwin
  15. physics

    A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's initial velocity and acceleration are v0x = +3.9 m/s and ax = +1.2 m/s2. The y components of the puck's initial velocity and

    asked by sarah
  16. Physics

    A cricket ball rotates at 1800 rev/min as it travels through the space in a straight line at 160 km/hr. How many times does it revolve after traveling 20m? Can someone confirm with me if 13.5 revolutions in 20m is right. That's the answer i got too. If

    asked by Yoyo
  17. Sociology

    One of the primary differences between the study of Society done by the people of ancient civilizations and the study of society conducted by sociologists 19th century was what?

    asked by Steve
  18. maths

    integrate. cos7xcos3xsinxdx.plz help tanks

    asked by edward
  19. english

    Human population and groups of people A. Demographics B. Community C. Population D. Norms

    asked by bee
  20. Chemistry

    Use the data in the table to determine how long it will take for half of the original amount of SO2Cl2 to decompose at the average reaction rate. Experimental Data for SO2Cl2(g) → SO2(g) + Cl2(g) Time (min) [SO2Cl2](M) [SO2](M) [Cl2](M) 0.0 1.00 0.00

    asked by Chloe
  21. scientific stats

    I get very confused when asked these types of questions. I need someone to explain it to me easier. Looking for another way to try to learn these questions. A typhoon is a mature tropical cyclone that develops in the western part of the North Pacifi c

    asked by Luci
  22. physics

    (a) What is the magnitude of the average acceleration of a skier who, starting from rest, reaches a speed of 10.5 m/s when going down a slope for 3.18 s? (b) How far does the skier travel in this time?

    asked by sarah
  23. physics

    How many grams of Al2O3 are formed from 15L of O2 at 97.5kPa and at 21degree celcius.

    asked by Alice
  24. soild

    A piece of material subjected to three mutually perpendicular stresses of 70, 56 and 84 MPa. If E= 200 Gpa, Poissions ratio= 0.28 Determine 1) Principal strains 2) Shear modulus 3) Bulk modulus.

    asked by raj
  25. Geometry

    plane hkp and plane rkp are 2 distinct planes. Name the intersection of plane hkp and rkp my answer is line kp

    asked by Steve
  26. Geometry

    In a line with points a,b,c,d what is the name of the ray that is opposite ba? my answer is ca

    asked by Steve
  27. Math

    Kimi bought d donuts. There were 4 donuts in each box. Write an expression that shows how many boxes of donuts Kimi bought.

    asked by Kate
  28. Physics

    A torque of 32Nm is applied to a wheel, which causes it to accelerate at 25 rad/s2. What is the rotational moment of inertia of the wheel? I got 1.28kg/m^2.

    asked by Yoyo
  29. math

    if point a = -7 and b = 8 what is their length? my answer is 15

    asked by Steve
  30. jones high school

    which of the following represents a function on a line. ellipse circle horizontal vertical Is the correct answer vertical?

    asked by kareen
  31. health

    These could include a wellness center, a health food store, a grocery store that sells wholesome products, a vitamin store, your local gym, your doctor's office, or any other place that offers nutritional advice. Explain why you think they may or may not

    asked by Nani
  32. math

    A car travels 200 miles at 55 miles per hour at 22 miles per gal. How many gallons of gasoline would it use in 5 hours? my answer is 12.5 gals.

    asked by kareen
  33. Physics

    A spaceship is on a straight-line path between the Earth and the Moon. At what distance from Earth is the net gravitational pull on the probe from the Earth and the moon zero? Mass of Earth = 6×10^24 kg. Mass of Moon = 7×10^22 kg. The distance from the

    asked by Yoyo
  34. Physics

    Which one of the following actions would make the maxima in the interference pattern from a grating move closer together? Decreasing the frequency of the laser. Increasing the frequency of the laser. Increasing the number of lines per length. Increasing

    asked by Mary
  35. Maths

    Let \displaystyle \int_{5}^{9.5} f(x) dx =4, \ \int_{5}^{6.5} f(x) dx=5, \ \int_{8}^{9.5} f(x)dx =8

    asked by Santosh
  36. Physics

    Suppose you wanted to be able to see astronauts on the moon. What is the smallest diameter of the objective lens required to resolve a 0.61 m object on the moon?

    asked by Mary
  37. Maths

    An army cook used 500ml of oil in working for 6 soldiers. How many liters of oil would be required for 480 soldiers?

    asked by Anonymous
  38. math

    Air pressure at sea level is 30 inches of mercury. At an altitude of h feet above the, air pressure, P, in inches of mercury, is given by, P =30e^(-3.23x10-5h) a)Find th equation of the tangent line at h=0. b)A rule of thumb is given by travelers is that

    asked by farjana
  39. Maths

    Five-eights of the population of a village are men, one-sixth are children and the rest, 500 in number are women. How many children are there?

    asked by David
  40. physics

    a pin has a diameter of 0.005mm at its sharp end. calculate the pressure exerted when a force of 2.0N is applied to the pin.

    asked by kongo
  41. MATH

    Air pressure at sea level is 30 inches of mercury. At an altitude of h feet above the, air pressure, P, in inches of mercury, is given by, P =30e^(-3.23x10-5h) a)Find th equation of the tangent line at h=0. b)A rule of thumb is given by travelers is that

    asked by FARJANA
  42. English

    When he thought he can afford to pay his own school fees.

    asked by Munyaradzi
  43. English

    This is in regard to the novels 1984 by George Orwell and Brave New World by Aldous Huxley. How and why do the protagonists Winston Smith and Julia, Bernard, and John the Savage try to assert themselves against their respective societies?

    asked by Gaby
  44. physics

    a stone is thrown in such a manner that it would just hit a bird at the top of a tree and afterwards reach a maximum height double that of the tree . if at the moment of throwing the stone the bird flies away horizontally with constant velocity and the

    asked by prabhat
  45. Math

    the intensity l of light from a light bulb, measured in watts per square meter (w/m^2), varies inversely as the square of the distance d from the light bulb. Suppose l is 70 w/m^2 when the distance is 5m. Find the intensity when the distance from the light

    asked by Kalyn
  46. Writing

    I'm doing a writing segment with the topic, law. I was wondering if the California eraser button law is still active?

    asked by Francine
  47. physics

    An object undergoes simple harminic motion of amplitude A. Through what total distance does the object move during one complete cycle of its motion?

    asked by Godwin
  48. Battle

    The cost of chicken wings at the local supermarket increased from $1.29 a pound the last month. About what percent increase I'd this?

    asked by Marian
  49. Sociology

    Are theories necessary to explain research findings? My answer is yes.

    asked by Steve
  50. Geometry

    If two sides of a triangle are 3 cm and 5 cm in length, which could NOT be the measure of the third side? A) 2 cm B) 3 cm C) 4 cm D) 5 cm I thhink it's A

    asked by Yolanda
  51. Physics

    A spring streches by 3.90 cm when a 10g mass is hung from it. If a 25g mass attached to this spring oscillates in simple harmonic motion, calculate the period of the motion?

    asked by Godwin
  52. Chemistry

    heating cyclopropane (C3H6) converts it to propane (CH2=CHCH3). The rate law is first order in cyclopopane. If the rate constant at a particular temp is 6.22x10^-4 s^1 and the concentration of cyclopropane is held at .0300 mol/L, what mass of propane is

    asked by Coco
  53. Physic

    so i need to calculate the moment of inertia of the pulley and the angular acceleration of the pulley. mass A = 9kg Mass B = 15kg Inner pulley= Mass 3kg R= 6cm Outerpulley= mass 7kg R=12cm it is a composite pulley with two masses hanging. Mass A on the

    asked by john
  54. Chemistry

    what information must you know to calculate the boiling point elevation of a solution of hexane in benzene. Is it the temp, Kb and the molality?

    asked by Coco
  55. Chemistry

    Radioactive decay is first order in the decaying isotope. For example, strontium-90 contained in fallout from nuclear explosions decays to yttrium-90 and a beta particle. Write the rate law for the decay of strontium-90. Can you please take me step by stem

    asked by Soco
  56. Area

    How many flowers can you plant in an area 19 square metres if each flower needs 0.04 square metres of space

    asked by Phil
  57. algebra

    Suppose Paul kicks a soccer ball straight up into the air with an initial velocity of 96 feet per second. The function f(x) = -16t2 + 96t gives the height, in feet, of the soccer ball after t seconds.Show all work to find the axis of symmetry

    asked by sydney
  58. Chemistry

    I'm having trouble understanding rate laws and manipulating them. So, for example, the rate law is rate= k[CO2][O3]. I was taught, maybe if I am just forgetting some pieces(been awhile), if I were to triple/double the partial pressure of CO2/O3, the rate

    asked by Jake
  59. Scrambled Paragraph

    Architects must consider many factors in designing a building. _1_ Q. Lighting is an essential aesthetic consideration in the design of a building's interior. _4_ R. It's source of daylight, high overhead and filtered through stained glass, creates

    asked by Jenna
  60. Math

    To celebrate the first day of a leap year, I taught my dog to jump through a hoop. It was a Sunday. When he taught me the same trick the first day of the next year, it was a _?_ A) Sunday B) Monday C) Tuesday D) Wednesday Is it B?

    asked by Jina
  61. Math

    In right triangle ABC above, segment DE is drawn from side AB to AC as shown, forming right triangle ADE. If BC is 24, AB is 12, and BD is 4, what is the length of DE? A.18 B.16 C.15 D.12 E.8

    asked by Anonymous
  62. physics

    A pole of infinite length is planted vertically on the ground. A stone is placed at a distance of 'd1' meters from the pole towards the right. A bird is sitting on the ground exactly in the middle of the pole and stone. The bird flies away towards the

    asked by Anonymous
  63. math

    How many different pairs of parallel edges are there on a rectangular solid?

    asked by Anonymous