Tuesday
October 21, 2014

Posts by Duane


Total # Posts: 40

calculus
Use the four-step process to find the slope of the tangent line to the graph of the function at the given point and determine an equation of the tangent line.f(x)= x^2 - 5x +2 (1, -2)
October 20, 2014

calculus
Hi Steve, can you show me step by step how to factor this, because my numbers compared to the correct numbers are way too low and I don't know what I'm doing wrong.
October 18, 2014

calculus
2 given s(t)=3t +5t+3, find the instantaneous velocity when t i= 5.
October 18, 2014

Business Law
wilken owes rivera $2000. howie promises wilken that he wiol pay rivera the $2000 in return for wilken's promise to give howie's children guitar lessons. is rivera an intended beneficiary of the howie-wilken contract?
September 15, 2014

Business Law
Wilken owes Rivera $2000. Howie promises Wilken that he will pay Rivera the $2000 in return for Wilken's promise to give Howie's children guitar lessons. Is Rivera an intended beneficiary of the Howie-Wilken contract? I am not sure if Rivera is an intended beneficiary ...
September 10, 2014

Music
Explain sonata form name and sections. What is Aria form?
August 30, 2014

Science
a jogger with a mass of 60.0kg is moving at a speed of 3.0m/s. what is the jogger's kinetic energy? KE=270 joules Can you show me the steps to this answer please.
July 16, 2014

science
why should you not attempt to take a picture of fluorine?
July 14, 2014

science
homogenized milk is composed of microscopic globules of fat suspended in a watery medium. is homogenized milk a true solution?
July 14, 2014

science
element 118 was reportedly synthesized in 1999, but the claim was later retracted. as a consequence of that experiment, element 116 was discovered. to what period and group would each of these two elements belong, and what known elements should each resemble?
July 14, 2014

science
Determine the percent composition of sodium hydrogen carbonate. Na H C O3 1*22.999 1*1.008 1*12.011 3*15.999 22.999 1.008 12.011 47.997 /84.015 /84.015 /84.015 /84.015 .2737 .0120 .1430 .5713 *100 *100 *100 *100 27.37% 1.2% 14.3% 57.13% did i do this correctly?
July 14, 2014

science
what is the correct number of protons, neutrons and electrons in a neutral Cadmium-112 atom?
July 14, 2014

science
Name the ionic compound form when a Magnesium reacts with chlorine?
July 14, 2014

science
how would you go about locating the magnetic north pole assuming it were still on land?
July 12, 2014

science
what happens when you cut a bar magnet in half? if it were continually cut in half, then would it finally yield two magnetic monopoles?
July 12, 2014

science
Why when you look at a window from the inside at night, two similar images, one behind the other, are often seen?
July 12, 2014

science
if the Moon's spherical surface gave specular reflection, what would it resemble at full moon?
July 12, 2014

science
why do the tones sound full and rich when you sing in the shower?
July 12, 2014

science
how fast would a "jet" fish have to swim to create an "aquatic" boom?
July 12, 2014

science
the speed of sound in air is given for still air. how would wind affect the speed? what would happen if you shouted into the wind?
July 12, 2014

science
A half-life of mercury-195 is 31 hours. If you start with a sample of 5.00g of pure mercury-195, how much of it will still be present after 93 hours?
July 11, 2014

science
Is this balanced correctly NaOH + H2SO4 = Na2SO4 + H2O? In this equation, Sodium (Na) and Hydrogen (H) atoms are not balanced. There are 2 atoms of Sodium (Na) on Right Hand Side, so we can multiply NaOH with 2 on Left Hand Side. This balances the Sodium (Na) atoms. Now, ...
July 11, 2014

science
Explain the process of reflection.
July 11, 2014

science
A car traveling about 50km/h collides head-on with something solid. The car crumples, slows down and stops. Use the law of inertia to explain why a crash dummy not restrained by a seat belt in the car slams into the steering wheel.
July 11, 2014

science
While the moment in time at which a particular nucleus decays is unpredictable, a collection of atoms of a radioactive nuclide decays exponentially at a rate described by a parameter known as the half-life, usually given in units of years when discussing dating techniques. ...
July 11, 2014

science
Explain why radioactivity can be used as a "clock" to measure the march of geologic time.
July 11, 2014

science
What is the Molarity of a solution formed by mixing 10.0g H2SO4 with enough water to make 100.0mL of solution?
July 11, 2014

science
What is the Molarity of a solution formed by mixing 10.0g H2SO4 with enough water to make 100.0mL of solution?
July 11, 2014

science
Sodium hydrogen carbonate NaHCO3, also called baking soda, is an active ingredient in some antacids used for the relief of indigestion. Determine the percent composition of sodium hydrogen carbonate.
July 11, 2014

science
A student expends 9.6W of power lifting a textbook 0.50m in 3.0s with a constant velocity. How much work is done?
July 8, 2014

science
How much heat must be removed from 0.20kg of water at 10.0oC to form ice at 0oC?
July 8, 2014

science
In the construction of bridges and skyscrapers, gaps must be left between adjoining steel beams to allow for the expansion and contraction of the metal due to heating and cooling. The temperature of a sample of iron with a mass of 10.0g changed from 50.4oC to 25.0oC with the ...
July 6, 2014

Science
All of these are correct. Thank you
March 4, 2014

2nd Math
My daughter is learning about comparison problems. I would like to know how to write one and solve it.
February 20, 2014

Physics
A car is traveling due east at 25.0 m/s. If it accelerates at 0.750 m/s^2 due east find it's velocity after 8.50 s have elapsed.
February 3, 2012

Chemistry
A student reacts 0.1212 g of an Mg/NaCl mixture with hydrochloric acid. The volume of hydrogen saturated with water vapor collected at 20.0C was measured to be 42.7 ml. The column of water that remained in the buret was 10.3 cm high. If vapor pressure of water = 17.5 mmHg at ...
October 12, 2011

Physics
If 60 Cal. are added to 6 g. of iron at 20 degrees Celsius what is the final temp.
July 3, 2011

Math-Trigonometry
Master Chief is trapped on an island with a Scorpion Tank as his only means of defense. An enemy Covenant jet fighter just landed on a smaller island across the water. Master Chief would like to fire a shell across the water directly at the jet. However, as the Scorpion Tank ...
November 30, 2010

math
How do I figar out the third of a amount of money
November 9, 2010

science
If a cube of Jello is cut into two pieces, what property of the pieces did not change?
November 7, 2009

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