Questions Asked on
October 19, 2019

  1. chemistry

    the compound al2o3 contains 53% metal ,what is the relative atomic mass of aluminium

    asked by lweendo
  2. Chemistry

    What volume of glycerine C3H8o3. Density 1.26g/ml, should be taken to obtain 2.50mol of glycerine

    asked by Lumamba
  3. Math

    Complete each statement with the appropriate measurement or symbol. 48 c = _ qt 96 oz _ 5 lb 6 yd, 1 ft = ft 6 1/2 lb = _ oz

    asked by Cup of Tae w/ Suga
  4. history

    James Oglethorpe's decision to recruit Highland Scots to establish a settlement on the Altamaha River is evidence of which of the following reasons for colonization as described in the Charter of 1732? Economic - The Highland Scots were slave holders who

    asked by ????
  5. Probability

    Of the 1286 students enrolled at the community college last fall, 367 registered early. Based on this data which approach would be best to find the probability of students who will register early this fall? classical approach subjective approach***

    asked by Ember Lovet
  6. U.S. Studies

    What were the two groups that emerged after the constitutional convention? What did each group want?

    asked by Spencer
  7. Geometry

    AB ∥ DC, DE ⊥ AB , AD = BC, m∠ADC = 134° AD = 40, DC = 32, ABCD is a trapezoid. Find: Area of ABCD

    asked by Simba
  8. Social Studies

    1.Which is one reason there was conflict between the colonists and Britain?

    asked by user
  9. chemistry

    A 2.118 g sample of a solid mixture containing only potassium carbonate ( MM=138.2058 g/mol ) and potassium bicarbonate ( MM=100.1154 g/mol ) is dissolved in distilled water. A volume of 30.20 mL of a 0.763 M HCl standard solution is required to titrate

    asked by mike
  10. Math

    find the volume bounded by the parabolic cylinder z=4-x^2 and the planes x=0, y=0, y=6 and z=0 I just want some help figuring out the limits of this question : So for z, we have to integrate from z=0 to z=4-x^2 (am i right?) W.r.t. y, we should integrate

    asked by Aryaa
  11. English

    what are the principle parts of verbs a. the base forms of verbs with no endings added b. the present, present participal, past, and past participal of verbs***** c. the most common verbs of the most common verbs d. action, linking, regular and irregular

    asked by wyatt love harry potter
  12. Physics

    Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 453 N and F2 = 400 N. (Assume up and to the right as positive directions.)(F1 is 8degrees and F2 is 35degreed) (a) What is the resultant of these two

    asked by Anonymous
  13. Physics

    I need the answers Fx = 453 cos 8 + 400 cos 35 Fy = 453 sin 6 + 400 sin 35 |F| = sqrt ( Fx^2 + Fy^2) tan theta = Fy/Fx where theta is angle above x axis |A| = |F| / 3805 same angle above x axis = theta

    asked by Anonymous
  14. physics

    tarzan swings from a vine whose length is 10m in a vertical circle under the influence of gravity .when vine make an angle of 20 degree with the vertical then find out length of arc and centripetal force experienced at this instant when tarzan has a speed

    asked by Anonymous
  15. Physics

    An aeroplane's compass indicates that it is headed due to North, and it airspeed indicator shows that is moving through the air at 24 0 km/h. If there is a 100 km/h wind from west to east. In what direction should the pilot head to travel due north? What

    asked by Khushi
  16. physics

    One boy standing on a bridge throws a stone horizontally at a velocity of 12m/s. If the bridge is 10m above the river, how far horizontally will the stone go from him?

    asked by Patrick
  17. Physics

    Describe the force board experiment to show how to obtain a resultant of two non-parallel coplaner forces acting at a point

    asked by ....
  18. algebra

    what is the greatest prime you must consider to test whether 4178 is a prime?

    asked by Kim
  19. biology

    Who discovered that only green parts (leaves) of plants photosynthesized releasing oxygen and not roots? a. van Helmont b. Priestly c. Ingenhousz d. van Niel e. Blackman

    asked by Ally
  20. algebra

    A farmer has 160 bushels of apples for sale at a farmers market .he sells an average of 15 1/4 bushels each day .After 7 days ,what is the change in the total number of bushels he has for sale at the farmers market. Please help me work this out I dont

    asked by James
  21. Physics

    Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 453 N and F2 = 400 N. (Assume up and to the right as positive directions.)(F1 is 8degrees and F2 is 35degreed) (a) What is the resultant of these two

    asked by Anonymous
  22. math

    John is fencing a larger rectangular pen and creating 3 smaller pens of equal area (2 lengths and 4 widths). John wants to maximize the area contained by the pens. John plans on using 1200m of fencing. What is the area and dimension of the 3 smaller pens?

    asked by Parveen
  23. Math

    Jason is keeping track of the amount of money that he spends on gas each month. Below are the amounts for last month: $24.75 $30.25 $34.60 $38.90 What is the best estimation for the amount that Jason spent on gas last month? A) 20 + 30 + 30 + 40 B) 20 + 30

    asked by LostIdentities
  24. math

    i'm not very good at math whats an easy way to learn rise over run and slope, i'm an 8th grader i really need help.

    asked by sarah
  25. Mathematics

    A pyramid 8cm high stands on a rectangular base 6cm by 4cm. Calculate volume of the pyramid.

    asked by Susan
  26. Math

    Which choice correctly compares the two numbers? A) 4.2 > 5.6 B) 4.8 < 4.6 C) 5.1 < 5.2 D) 5.2 > 5.3

    asked by LostIdentities
  27. Math

    Im still having problems with this simple question: d^2y/dx^2 + 2 dy/dx +5y=0 With initial conditions y=1, x=0 and dy/dx=1 I have gone through and checked and ended up with no solution given the initial conditions. The Furthest I have got is ending with

    asked by Mathy
  28. Chemistry

    Calculate the volume of CO2 that would be produced from 0.5 mole of Fe2O3 according to the equation.Fe2O3(s)+3CO(g)=2Fe(s)+3CO2(g). (1mole of a gas occupies 22.4dm3 at s.t.p)

    asked by Joy
  29. Career guidance

    Maths lit geography life science tourism Can I do nursing with this subject?

    asked by Mike
  30. math

    At the end of a​ party, three fourths cup of dip is left. Jim divides four fifths of the leftover dip equally between 2 friends. How much dip does each friend​ get?

    asked by Anonymous
  31. Physics

    Two cars approach each other; both cars are moving westward, one at 78 km/h, the other at 64km/h. A) what is the velocity of the first car relative to (in the frame of reference of) the second car? B)after the pass, will their relative velocity change?

    asked by Ashley
  32. science

    a runner runs 100.0 m in 9.85 seconds. If he has a kinetic energy of 3400.0 J what is the mass?

    asked by Anonymous
  33. Science

    Is 3NaHCO3+C6H8O7=C6H5Na3O7+3CO2+3H20 A combustion reaction?(alka seltzer tablet reacts with water).

    asked by Ania
  34. chemistry

    A 5.00 L solution has [HC7H5O2] = 0.100 M and [Ca(C7H5O2)2] = 0.200 M . What is the pH of the solution after 10.0 mL OF 5.00 M NaOH is added? Assume the volume of the solution does not change .Ka for HC7H5O2 = 6.3x10^-5.

    asked by JAY_ndabeh
  35. Physics

    Ann is driving down a street at 55 km/h. Suddenly a child runs into the street. If it takes Ann 0.75 s to react and apply the brakes, how many meters will she have moved before she begins to slow down?

    asked by Ashley
  36. biology

    When protons accumulate on one side of the membrane and then flow back across the membrane through ATP synthase it is called a. chemiosmosis b. electron transport chain c. charge separation d. primary photo-event

    asked by Ally
  37. history

    what was the biggest war in usa history

    asked by Welp_oh_dear
  38. Physics

    What is the force of attraction between two masses of 5kg and 8kg at a distance of 60cm apart

    asked by saadatu
  39. Pre-algebra

    8+24+√5? I have no idea what the answer is 😬

    asked by nobody
  40. Math

    PJ needs $60 for a class trip. He has $32 already saved and can earn $4 an hour mowing lawns. How many hours must PJ work to have the money he needs? Write an Equation and solve

    asked by Kylie
  41. Geometry

    8cos30° × tan60°+2 sin²65°+2cos²65°

    asked by Sarah
  42. Math

    What type of problems can we solve using the greatest common factor

    asked by Evelyn
  43. math

    olivia can complete 6 sprints per minute.write and solve a direct variation eqation to find how many sprints she can expect to complete in 25 minutes. i really need the answer

    asked by sarah
  44. Physics

    While John is traveling along an interstate highway, he notices a 160-mile marker as he passes through town. Later John passes another mile marker,115. A ) what is the distance between town and john’s current location? B)what is john’s current

    asked by Ashley
  45. English

    How is the book Their Eyes Were Watching God by Zora Neal Hurston a bildungsroman? What are some examples from the book that support the answer?

    asked by Raven
  46. Physics

    Light from the sun reaches earth in 8.3 min. The velocity of light is 3.00 x 10^8 m/s. How far is earth from the sun.

    asked by Ashley
  47. Math

    Ben and Maddie both use triangles to determine the slope of the line.Ben determines the slope of line l to be -2. Maddie says the slope of line is 1/2.Who is correct?

    asked by sarah
  48. Physics

    I need the answers Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 453 N and F2 = 400 N. (Assume up and to the right as positive directions.)(F1 is 8degrees and F2 is 35degreed) (a) What is the

    asked by Anonymous
  49. Science

    A rectangular container has a 10 cm square base and contains water to a depth of 12 cm. when a stone of a mass of 600 g is gently lowered into the water , the level rises to 14 cm.calculate the volume of water displaced

    asked by Gayathri
  50. physics

    l need answers with the aid of scale drawing

    asked by success
  51. Physics

    You dive a car 2.0 h at 40km/h , then 2.0 h at 60 km/h A) what is you average velocity B) do you get the same answer if you drive 100 km at each of the two speeds above

    asked by Ashley
  52. Physics

    What average force is necessary to accelerate a projectile at rest to a speed of 125m/s which has a mass of 9.20g the distance of .800m along the barrel of a rifle?

    asked by Alex
  53. pre-algebra

    wyatt invests $6000 in two accounts, the first pays 10 percent simple interest, the second pays 11 percent simple interest. At the end of the year he has earned $640 in interest. How much is invested at each rate?

    asked by miranda