Brody

Most popular questions and responses by Brody
  1. Chemistry

    Buffer capacity is a measure of a buffer solution\'s resistance to changes in pH as strong acid or base is added. Suppose that you have 165 mL of a buffer that is 0.360 M in both benzoic acid (C6H5COOH) and its conjugate base (C6H5COO–). Calculate the

    asked on November 17, 2013
  2. physics

    A glass window pane has an area of 3.00 m2 and a thickness of 0.600 cm. If the temperature difference between its faces is 25.0°C, what is the rate of energy transfer by conduction through the window.

    asked on January 30, 2014
  3. Chemistry

    Buffer capacity is a measure of a buffer solution\'s resistance to changes in pH as strong acid or base is added. Suppose that you have 165 mL of a buffer that is 0.360 M in both benzoic acid (C6H5COOH) and its conjugate base (C6H5COO–). Calculate the

    asked on November 17, 2013
  4. Physics

    A car starts rolling down a 1-in-8 hill (1-in-8 means that for each 8 m traveled along the road, the elevation change is 1 m). A) How fast is it going when it reaches the bottom after traveling 90 m ? Assume an effective coefficient of friction equal to

    asked on November 3, 2015
  5. English

    Find the verbal phrases and appositive phrases in the following sentences. Identify each phrase as a participial phrase, a gerund phrase, an infinitive phrase, or an appositive phrase. 1. Developing the automobile was actually the creative work of many

    asked on November 25, 2018
  6. Physical Science

    If there were no air resistance, a quarter dropped from the top of New York's empire state building would reach the ground 9.6 seconds later, what would its speed be? How high is the building?

    asked on January 29, 2012
  7. Physics

    A bar of gold is in thermal contact with a bar of silver of the same length and area. One end of the compound bar is maintained at 80.0°C while the opposite end is at 30.0°C. When the energy transfer reaches steady state, what is the temperature at the

    asked on January 30, 2014
  8. Chemistry

    Calculate the pH for each of the following points in the titration of 50.0 mL of a 2.7 M H3PO3(aq) with 2.7 M KOH(aq). (a) before addition of any KOH (b) after addition of 25.0 mL of KOH (c) after addition of 50.0 mL of KOH (d) after addition of 75.0 mL of

    asked on November 17, 2013
  9. Math

    The distance between Town A and Town B was 210 km. At 9:20 P.M., a bus set off from Town A to Town B and a car left from Town B to Town A. The average speed of the bus was 60 km/h, and the average speed of the car was 80km/h. a) Calculate the time at which

    asked on April 29, 2016
  10. Linear Algebra

    Suppose T: R^2->R^2 is a linear transformation with T(1,2)=(2,-1) & T(3,-1)=(-1,2). What is T(-12,11)?

    asked on March 5, 2014
  11. Physics

    The Nova laser at Lawrence Livermore National Laboratory in California is used in studies of initiating controlled nuclear fusion (Section 45.4). It can deliver a power of 1.60 × 1013 W over a time interval of 2.50 ns. Compare its energy output in one

    asked on January 31, 2014
  12. college chemistry

    The half-life of 13252Te is 3.26 days. This isotope decays by beta emission to a highly unstable intermediate that decays rapidly to a stable product by beta emission. (a) What is the ultimate product obtained from Te-132? Write a balanced equation for

    asked on May 3, 2010
  13. Physics

    Two speeding lead bullets each of mass 5 g and temperature of 20°C collide head on at speeds of 500m/s each. Assuming a perfectly inelastic collision and no loss of energy to the atmospheres, describe the final state of the two bullet system.

    asked on January 30, 2014
  14. Math

    On a forward summer salt dive, a diver's height, h meters above the water can be modelled by the equation h(t)=-2.9(t-0.6)^2+4.8 where t is the time in seconds after the diver leaves the board A) determine the height above the water the diver is before he

    asked on October 25, 2014
  15. Physics

    The Nova laser at Lawrence Livermore National Laboratory in California is used in studies of initiating controlled nuclear fusion (Section 45.4). It can deliver a power of 1.60 × 1013 W over a time interval of 2.50 ns. Compare its energy output in one

    asked on January 31, 2014
  16. Physics

    Vertical beam of mercury (Hg atomic mass =202u) atoms emerges from the oven kept at T= 400K. Consider three atoms, emerging from the oven: one with the average speed, one with the rms speed, and the other with the most probable speed of the Maxwellian

    asked on February 6, 2014
  17. Physics

    A 4 liter sample of a diatomic gas with γ =1.4 confined to a cylinder, is carried through a closed cycle. The gas is initially at 1.00atm. and 300K. First, its pressure is tripled under constant volume. Then it expands adiabatically to its original

    asked on February 6, 2014
  18. social studies

    How are Urban and Rural related

    asked on February 24, 2010
  19. Linear Algebra

    Suppose C and D and 5x5 matrices and det(C)=5, det(D)=6. Compute the determinant of the matrix 3C^T (4CD)^-1 C^2. Justify your answer by stating explicitly which calculation rules for the determinant you use.

    asked on March 5, 2014
  20. Physics

    A water heater is operated by solar power. If solar collector has an area of 6.00m^2, and the intensity delivered by sunlight is 550W/m^2, how long does it take to increase the temperature of 1m^3 of water from 20°Cto 60°C?

    asked on January 30, 2014
  21. Linear Algebra

    Consider the linear transformation T: R^3->R^3 which acts by rotation around the y-axis by an angle of pi, followed by a shear in the x-direction by a factor of 2. a) Find the matrix for T. Explain your method. b) What is T(1,2,3) c) Without calculation,

    asked on March 5, 2014
  22. math

    What is the largest odd number with a 9 in the 10 millions place

    asked on October 9, 2012
  23. History

    How was the election of 1916 differenct from the election of 2004

    asked on December 1, 2008
  24. science

    Why do certain comets return at regular intervals?

    asked on November 22, 2008
  1. math

    this question stumped me FOREVER on my 8th grade placement test. thank u for the solutions.

    posted on May 20, 2019
  2. Maths

    Sorry it is realy 68! No joke please trust me!

    posted on April 8, 2019
  3. Maths

    Answer 82. I am correct trust me its correct.

    posted on April 8, 2019
  4. math

    20%

    posted on February 16, 2018
  5. Math

    Hebdhdhe

    posted on October 21, 2015
  6. Math

    Yes

    posted on October 25, 2014
  7. Physics

    Yes, this is assuming no heat is lost

    posted on January 30, 2014
  8. Physical Science

    Okay, thank you! I'm pretty sure I got it! What about to know how high the building is though? Sorry if you already answered that too, I am awful with this kind of stuff

    posted on January 29, 2012
  9. Physical Science

    I don't know how to use those formulas to figure out what the speed and how high the building would be ?

    posted on January 29, 2012
  10. 11th grade physics

    The mass of an object at any point will remain the same( unless its velocity approaches that of light, of course )So, for the weight to reduce to half its value, the acceleration due to gravity has to reduce to half its value on earth. now, the relation

    posted on December 16, 2010