helena

Most popular questions and responses by helena
  1. Social Studies

    1. According to the passage, what can be inferred about how Elizabeth Cady Stanton’s personal qualities affected the women’s suffrage movement? Her enthusiasm gave the movement a set of core beliefs. Her philosophical views provided the movement with a

    asked on December 1, 2016
  2. Science - Check my answers

    1. Which of the following statements best defines tides? when waves get bigger because of an approaching storm the rise and fall of ocean water that occurs about every 12.5 hours **** the rise of ocean water that occurs 12 times a day a giant wave that can

    asked on April 3, 2014
  3. 6th Grade Science - Help

    Which of Earth's spheres has the most mass? 1. atmosphere 2. hydrosphere 3. geosphere 4. biosphere Is it Biosphere?

    asked on April 5, 2014
  4. physics

    In 1993, Cuban athlete Javier Sotomayor set the world record for the high jump. the gravitational potential energy associated with Sotomayor's jump was 1970 J. Sotomayor's mass was 82.0 kg. How high did Sotomayor Jump?

    asked on March 30, 2015
  5. Science - Check my answers please (6th grade)

    When are tides in Earths oceans the highest? 1. during the moon's waning gibbous phase 2. during the moon's waxing gibbous phase 3. when the moon is at a right angle to the sun 4. When the sun, Earth, and moon are in a line.

    asked on April 7, 2014
  6. Math

    In a marketing survey involving 1,000 randomly chosen people, it is found that 630 use brand P, 420 use brand Q, and 210 use both brands. How many people in the survey use brand P and not brand Q? Answer choices: 210 people 420 people 630 people none of

    asked on March 27, 2014
  7. algebra

    Translate this sentence into an equation. The product of Helena's age and 9 is 99 . Use the variable h to represent Helena's age.

    asked on October 16, 2018
  8. Chemistry

    Mercury(II) sulfide, HgS, is practically insoluble in pure water. Its solubility at 25 degrees C is probably no more than 3×10^−25 g/L. Of the following quantities of pure water, which is the smallest quantity that could be used to make a saturated

    asked on May 2, 2016
  9. Science - Check my answers please (6th grade)

    earth and the moon are kept in their respective orbits due to the influence of ? a) inertia b) gravity c) both inertia and gravity d) neither inertia and gravity Is it c) both inertia and gravity?

    asked on April 7, 2014
  10. physics

    A 3.26 kg block located on a horizontal floor is pulled by a cord that exerts a force F = 10.4 N at an angle theta = 29.0° above the horizontal. The coefficient of kinetic friction between the block and the floor is 0.10. What is the speed of the block

    asked on December 4, 2010
  11. maths

    using a ruler and a pair of compass only. Construct ABC such that angle ABC=90°,AB=5cm and BC=6cm.Measure AC

    asked on February 22, 2017
  12. Algebra, Trig

    Question: A wind turbine has a total height of 50m, with 3 equally spaced blades that are 16m in diameter. 1) Create equations modelling the height of points on the tips of blades One, Two and Three. Graph these three curves on one graph. [Answers: Blade

    asked on October 20, 2017
  13. Chemistry

    how many grams of solid KOH is needed to neutralize 1.00 L of 0.250 M HNO3 solution?

    asked on April 18, 2011
  14. physics

    Two blocks are arranged. M1 is on the table and m2 is hanging from the pulley. The pulley can be considered to be massless, and friction is negligible. M1 is four times more massive than M2. If the system is released from rest, how far will M1 travel in

    asked on December 4, 2010
  15. Math

    The electrical resistance of a wire waves directly as its length & inversely as the square of its diameter if a wire 30m long and 0.75mm in diameter has a resistance of 25ohms , find the length of a wire of the same material whose resistance is 30ohms

    asked on January 29, 2016
  16. geometry

    The circumference of a bowling ball is about 27 inches. Find its volume to the nearest tenth.

    asked on March 24, 2015
  17. Chem

    Assuming complete dissocaition, what is the pH of 4.93 mg/L BaOH2 solution

    asked on February 21, 2014
  18. Chemestry

    What property of paradichlorobenzene may convince you that it is an ingredient in mothballs?

    asked on September 29, 2011
  19. geometry

    On July 16, 1882, a massive thunderstorm of Dubuque, Iowa, produced huge hailstones. The diameter of some of the hailstones was 17 inches. Ice weighs about 0.033 pounds/inches cubed. What was the approximate weight of these hailstones to the nearest pound?

    asked on March 24, 2015
  20. chemistry

    30 ml of sugar syrup is mixed with water to yield a concentration of 60% sugar solution. What is the volume of the solution? The sugar has a molecular formula of c12h22o11 and a mass of 12g.

    asked on December 15, 2013
  21. Algebra, Trig

    The full question: A point on a wheel has an equation y = 10 sin (x - 45°) + 20 that models the height as the wheel rotates. Answer the following questions. 1) What is the height if the wheel has rotated 135°? 2) What are the possible values of rotation

    asked on October 18, 2017
  22. Physics Help!

    A hockey puck moving at 0.4600 m/s collides with another puck that was at rest. The pucks have equal mass. The first puck is deflected 37.00° to the right and moves off at 0.3700 m/s. Find the speed and direction of the second puck after the collision.

    asked on October 25, 2016
  23. social studies

    analogies for bermuda cyprus mediterranean

    asked on October 2, 2011
  24. physics

    One of two 207.0 kg crates is dragged across the floor at a constant speed with a horizontal force of 197.0 N. How much force would it take to drag them both across the floor if they are tied together one behind the other? How much force would it take to

    asked on December 4, 2010
  25. Math

    Given that the quadratic equation x^2-2x-m+1=0 has 2 positive real number roots, a and b, determine the range of the values of m.

    asked on May 9, 2017
  26. geometry

    Write a paragraph proof. Given: A is congruent to B. B is congruent to C. and D is perpendicular to C. Prove: A is perpendicular to D im reallllyyy confused pls help me write this out

    asked on December 1, 2015
  27. Physics

    A 46−N lithograph is supported by two wires. One wire makes a 28° angle with the vertical and the other makes a 16° angle with the vertical. Find the tension in each wire.

    asked on October 16, 2016
  28. 8th grade science :(

    How does the sun's gravity influence tides?

    asked on November 23, 2013
  29. physics

    Suppose a person metabolizes 2250 kcal/day. a) With a core body temperature of 36.9°C and an ambient temperature of 21.5°C, what is the maximum (Carnot) efficiency with which the person can perform work? b) If the person could work with that efficiency,

    asked on December 18, 2012
  30. physics

    Consider a room air conditioner using a Carnot cycle at maximum theoretical efficiency and operating between the temperatures of 19.7°C (indoors) and 28.7°C (outdoors). For each 1.00 J of heat flowing out of the room into the air conditioner a) How much

    asked on December 18, 2012
  31. Physics

    a 150-N and 80-N force act upon an object. the angle between the two forces is 55 degrees. determine the magnitude and direction by trigonometric calculations.

    asked on September 28, 2012
  32. geography

    does anyone know what a megacity is and which cities are a megacity and a millionaire city and which are a millionaire city. thankyou!!!

    asked on September 12, 2010
  33. geometry

    how do i find the radius of the earth

    asked on August 31, 2010
  34. Language Arts

    I have trouble finding the complete subject simple subject complete predicate and the simple predicate please provide examples and maby some tricks to help me remember how to do this

    asked on September 14, 2009
  35. geometry

    A cone has a volume of 600 pi inches cubed. Find two possible sets of dimensions for the height and radius of the cone.

    asked on March 23, 2015
  36. math

    1.FIND the bank discount and proceeds on the following loans i) RM4000 FOR 3 MONTHS at 10 1/2 percent ii) RM4215 FROM 10 june to 5 august of the same year at 10 percent

    asked on May 2, 2014
  37. Remainder Theorem Help

    Use the remainder theorem to find the remainder when P(x) = x^3-2ax^2+1 is divided by x-a-1.

    asked on May 16, 2017
  38. History

    What role in the world did bismark envisagen for the new germany after 1871?

    asked on March 6, 2014
  1. math

    It is saying that the whole class had either brown eyes or blonde hair. They are saying out of all the blonde haired students, 1/4 have blonde hair AND brown eyes. and it is saying out of all brown eyed students, 1/3 have brown eyes and blonde hair.

    posted on March 12, 2019
  2. math

    2 + 1 = 5/6 lbs. 5/6 lbs. + 5/6 lbs. = 10/6 lbs. = 5/3 lbs. 4 + 2 = 5/3 lbs.

    posted on December 9, 2018
  3. History

    isn't it B

    posted on April 20, 2017
  4. Art

    Ya! Castiel is right for Unit 4 Lesson 4

    posted on December 1, 2016
  5. Math

    42*15/100 = 42*3/20 = 6.30

    posted on February 29, 2016
  6. Math

    Sariqs last four test scores in history were 87,85,91,and 88. What scores on his next test will give him an average of 90 or above? Write and solve an inequality.

    posted on August 27, 2015
  7. Math

    No. You can construct many trapazoids with the same area with multiple side lengths, thus as perimeter is the addition of the outer side lengths of a figure, if two trapazoids have different side lengths but the same area, most of the time, the different

    posted on November 30, 2014
  8. 8th grade science :(

    can you please explain to me in more detail please? Thank you

    posted on November 23, 2013
  9. 8th grade science :(

    because.....?

    posted on November 23, 2013
  10. 8th grade science :(

    can someone please help me with this question and instead of just giving me the answer can someone please also help me by explaining this to me in full sentences? Thank you guys :D

    posted on November 23, 2013
  11. College Accounting

    apr. 12 no entry no entry 0

    posted on January 21, 2013
  12. Math

    pls tell me how to solve for p

    posted on January 23, 2012