Nolan

Most popular questions and responses by Nolan
  1. Math 7 A

    Walter had 2/4 yard of string he used 1/2 of the string for a school project. How many yards of string did he use for his project?

    asked on November 4, 2017
  2. Math

    How do we know the ith of an invertible matrix B is orthogonal to the jth column of B^-1 , if i is not equal/unequal to j?

    asked on December 8, 2010
  3. Chemistry Help Please!!!

    Which two orbitals overlap to form the sigma bond between C and H in C2HF?

    asked on November 4, 2017
  4. Physics

    A 50-kg ice skater moves around a bend at 8 m/s. The radius of the bend is 8 m. Centripetal force is provided by friction between the blade of the skates and the ice. What is the amount of centripetal force?

    asked on November 30, 2016
  5. physics

    A 50-kg penguin stands on ice. A helium balloon is attached to the penguin by means of a harness and pulls upward with a force of 90 N. What is the normal force of the ice on the penguin?

    asked on February 25, 2011
  6. calculus

    2. A spin balancer rotates the wheel of the car at 480 revolutions per min. if the diameter of the wheel is 26 in what road speed is being tested in the miles per hour? Round to the nearest tenth

    asked on April 30, 2012
  7. geometry

    The sides of a quadrilateral are 3, 4, 5, and 6. Find the length of the shortest side of a similar quadrilateral whose area is 9 times as great.

    asked on August 17, 2012
  8. calculus

    3. Your neighbor puts tiger on his flat roof shed. You and another neighbor argue over the ht of the tiger. At a distance of 80 ft from the shed your angle of elevation from the ground level to the top of the shed is 5.74 degree. The angle of elevation to

    asked on April 30, 2012
  9. PHYSICS

    79X190 find (a) the net electrical charge of the nucleus, (b) the number of neutrons, (c) the number of nucleons, (d) the approximate radius of the nucleus, and (e) the nuclear density. I have already determined B and C. I only need to know the equations

    asked on May 2, 2014
  10. physics

    In the ballroom of a historic palace near Paris, a chandelier hangs from the ceiling by a cable. The mass of the chandelier is 390 kg. Find the tension in the cable.

    asked on February 25, 2011
  11. physics

    A 32.0-kg penguin on frictionless ice holds onto the end of a horizontal spring with spring constant 250 N/m and oscillates back and forth. What is its period of oscillation?

    asked on February 25, 2011
  12. physics

    A physics professor lifts her 9.0-kg briefcase at constant speed with an upward force. Find the magnitude of her force.

    asked on February 25, 2011
  13. Math

    In a class of thirty students, 1 person comes to school with the flu. On the third day, 5 students have the flu. Write an equation expressing the problem

    asked on January 17, 2019
  14. calculus

    1. A hill with a 35 degree grade (incline with horizontal) is cut down for a roadbed to a 10 degree grade. If the distance from the base to the top of the original hill is 800 ft., How many vertical ft will be removed from the hill rounded to the nearest

    asked on April 30, 2012
  15. physics

    A 10-kg duffle bag is undergoing a vertical acceleration of 0.050 m/s2 (positive for up, negative for down), while its owner is holding it with an upward force. What is the magnitude of this force?

    asked on February 25, 2011
  16. science

    What is matter in which every particle is identical?

    asked on December 18, 2008
  17. Geometry

    IS Evrey rectangle a square or is evrey rhombus a paralleogram. I forgot these things need help!

    asked on May 12, 2008
  18. College Algebra

    Which of the following is equivalent to (2x-3)^2=25 ? A) 2x - 3 = 5 B) 2x - 3 = -5 C) 2x - 3 = 5 and 2x - 3 = -5

    asked on October 4, 2011
  19. physics

    A physics professor lifts her 9.0-kg briefcase at constant speed with an upward force. Find the magnitude of her force.

    asked on February 25, 2011
  20. science

    What holds atoms together in a molecule?

    asked on December 18, 2008
  21. calculus

    4. You are at Lowes and a man is leaning against three sections of fencing that are 6,7 and 12 ft long. A Lowe’s person tells him to discard the 12 ft section and buy a 10ft section. She informs the customer that this would save money and would fence a

    asked on April 30, 2012
  22. math

    how do you make 9=6 (using roman numerals ) be equal on both sides

    asked on September 20, 2011
  23. physics

    A physics professor lifts her 9.0-kg briefcase at constant speed with an upward force. Find the magnitude of her force.

    asked on February 25, 2011
  24. PHYSICS

    a swimmer develops an average of 200 watts in a distance of 100m in 80 seconds. what is the force resistance in the water?

    asked on July 12, 2014
  25. science

    what is the increase in volume as temperature increases?

    asked on December 18, 2008
  26. Math

    What is the simplified sum when you evaluate 10/15 + 1/4

    asked on June 12, 2010
  27. Math - fractions

    Name 4 fractions between 1/2 and 5/7

    asked on February 3, 2017
  1. math

    I think it is 3w

    posted on December 2, 2019
  2. math

    The formula is wrong. It should be term(n) = ( n^3 + 23(n) - 8 ) / 2

    posted on January 19, 2019
  3. Science

    What is the answer

    posted on December 10, 2018
  4. Math

    4.228

    posted on December 3, 2017
  5. Chemistry

    For n=5 l=2 we get 5d, which has 5 orbitals and added s and p (1 and 3) we get 9.

    posted on November 4, 2017
  6. Math 7 A

    Thank you Ms. Sue

    posted on November 4, 2017
  7. Science

    THANK YOUU

    posted on October 21, 2017
  8. AP CHEM FULL ?

    could you please explain how you know that compound E is NH3 and compound A is nitric acid

    posted on February 25, 2015
  9. physics

    Actually I didn't know that formula haha. Thanks!

    posted on February 25, 2011
  10. algebra

    x^2-18x+___=( )^2

    posted on May 23, 2010
  11. 12th grade

    I don't agree Anonymous. To solve 2nd degrees equations (aka find the roots of a trinomial function), you have first to put it to this form : ax² + bx + c = 0 (where a, b and c are reals) Then you have to calculate its discriminant (its delta) : Δ = b²

    posted on April 27, 2010
  12. 12th grade

    Simple equation : X = -sqrt(2)/sec(1/4) = -sqrt(2)*cos(1/4) It's not a round value.

    posted on April 27, 2010
  13. 12th grade agebra 2

    For the first one : You put X = x² Then you have (variable change) : X² - 6X + 8 = 0 And you use common tools to solve that (use delta). You find X = 2 or X = 4. You have x² = X, so x = sqrt(X) or x = -sqrt(X). Here, the solutions are sqrt(2), -sqrt(2),

    posted on April 27, 2010
  14. 12th grade

    Id say... b

    posted on April 27, 2010
  15. Geometry

    I need help on the things like tevrey square is a rectangle please helpp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

    posted on May 12, 2008
  16. Geometry

    I know that a rectangle is a square but I am not sure of the rest.

    posted on May 12, 2008
  17. Fourth Grade Geometry

    Is evrey rectangle a square? Or is evrey parallegram a rhombus I forgot.

    posted on May 12, 2008