Questions and answers by

Jefferson

Questions (21)

Jonah and his friends go apple picking. Jonah fills 5 baskets. Each basket holds 15 apples. If 4 of jonah's friends pick the
1. 1 answer
2. 513 views
We have a question:X'={{1,0,0} {-4,1,0} {3,6,2}}X; X(0)={-1,2,-30} I have worked out to the general solution but I don't think
1. 2 answers
2. 457 views
We are learning how to solve systems of linear ODE's by elimination. I am not sure how to solve this:x'=-y+t y'=x-t I took the
1. 2 answers
2. 1,123 views
How to solve y''+y=sin(x) by separation of variables?
1. 7 answers
2. 659 views
Find the general solution of the given differential equation.x dy/dx − y = x^2 sin x I have solved to: y = -x cos(x) + cx The
1. 2 answers
2. 2,083 views
Suppose a small cannonball weighing 16 pounds is shot vertically upward, with an initial velocityv0 = 300 ft/s. The answer to
1. 4 answers
2. 4,967 views
if 20% of m is 80$ of p, then p is x% of m?
1. 2 answers
2. 927 views
Find the second derivative of y^2 = 4rp
1. 1 answer
2. 333 views
The weight of a solid in air is four times greater than the weight of solid in water. Find its weight of which solid in water if
1. 0 answers
2. 571 views
How many grams of solid product should form if 4.90 grams of sodium phosphate is mixed with 25 ml of .875M barium nitrate?
1. 1 answer
2. 478 views
#6If 10.0 grams of Aluminum carbonate(s) decomposes to produce aluminum oxide(s) and carbon dioxide(g), how many grams of CO2(g)
1. 0 answers
2. 600 views
#5 Limiting ReactantsHow many grams of water will be produced in the complete combustion of 20.0 grams of Octane, C8H18(g) and
1. 1 answer
2. 744 views
#6.If 10.0g of Aluminum carbonate(s) decomposes to produce aluminum oxide(s) and carbon dioxide(g), how many grams of CO2(g) are
1. 1 answer
2. 572 views
How many grams of water will be produced in the complete combustion of 20.0g of Octane, C8H18(g) and 50.0g Oxygen gas?
1. 2 answers
2. 906 views
How many grams of water are produced when 10.0g of Butane, C4H10(g) completely combust with 2.50 moles of Oxygen gas?
1. 1 answer
2. 684 views
A strip of zinc medal weighing 2.00 grams is placed in an aqueous solution containing 150.ml of .750M Tin(II) nitrate. Determine
1. 1 answer
2. 579 views
Lead(II) carbonate decomposes to form Lead(II) oxide and carbon dioxide. If 5.oo grams of the reactant decomposes to produce
1. 2 answers
2. 1,636 views
NH3 is a weak base (Kb = 1.8 × 10–5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.050 M
1. 2 answers
2. 1,252 views
If the pH of a solution is 6, what are the hydrogen- and hydroxide-ion concentrations?The PH of a 0.1 M MCl (M+ is an unknown
1. 0 answers
2. 1,292 views
At equilibrium, the concentrations in this system were found to be [N2]=[O2]=0.100 M and [NO]=0.400 M.N2 (g) + O2 (g) --> 2NO
1. 2 answers
2. 1,781 views
A sample of 25.00 mL of 0.100 M HNO2(in a flask) is titrated with 0.150 M of NaOH solution at 25 degrees.1) calculate the
1. 2 answers
2. 710 views