Joe Schmo

This page lists questions and answers that were posted by visitors named Joe Schmo.

Questions

The following questions were asked by visitors named Joe Schmo.

Please give an example of natural selection that does not include a predator/prey relationship.

Please solve the equation for x: 8e^3x=24

The rate of change R, in kilometers per hour, of the altitude of a hot air balloon is given by R(t)=t^3-4t^2+6 for time on the interval [0,4], where t is measured in hours. Assume the balloon is on ground level. What is the maximum altitude of the balloon...

Knowing that 2 aluminum atoms and 3 chlorine molecules react to produce 2 units of aluminum chloride, how many moles of aluminum chloride can be produced by reacting 7.8 moles of chlorine with excess aluminum?

If I were to stay up all night trying to finish my homework (like I am now) will caffeine help, or does it make it harder to work at all?

What is the difference between low and high blood pressure?

What volume does a mixture of 14.2 g of He and 21.6 g of H2 occupy at 28 degrees celcius and 0.985 atm?

What is an example of two functions that intersect at least twice in the first quadrant but can neither be a polynomial or a "simple" function (i.e., sin(x), e^x)?

Can anyone figure out this riddle?: With sup I'm a brace. You hope is enough; Alone I'm some docks, with sailors and stuff. What am I?

Given that the specific heat capacities of ice and steam are 2.06 J/g degrees C and 2.03 J/g degrees C, respectively, calculate the total quantity of heat evolved when 10.0 g of steam at 200 degrees C is condensed, cooled, and frozen to ice at -50 degrees...

Although water and ammonia differ in molar mass by only one unit, the boiling point of water is over 100 degrees C higher than that of ammonia. What forces in liquid water that do not exist in liquid ammonia could account for this observation?

Three 75.0-g samples of copper, silver, and gold are available. Each of these samples is intially at 24.0 degrees C, and 2.00 kJ of heat is applied to each sample. Which sample will end up at the highest temperature?

How would you solve this differential equation? dy/dx=1/2x+y-1

When 1 mol of gaseous hydrogen chloride is dissolved in enough water to make 1 L of solution, approximately how many HCl molecules remain in the solution?

What is a good sentence that uses the subjunctive tense of "reconciliarse"?

On earth, a certain type of bacteria doubles in number every 24 hours. Two cultures of these bacteria are prepared, each consisting initially of one bacterium. One culture is left on earth and the other is put on a rocket travelling at .866c relative to t...

Copper metal reacts with hot concentrated sulfuric acid solution to form aqueous copper (II) sulfate, sulfur dioxide gas and water. What type of reaction is this?

Find derivative of (x+1)/(x^2+1)^(1/2)

How do you find the indefinite integral of (x^2-29x+5)/(x-4)^2(x^2+3)?

What is indefinite integral of 1/(x^2-4)^(1/2)?

Twelve uniform, thin rods of mass M and length L are welded together to form a hexagon "wheel." What is the moment of inertia of this wheel for rotation around an axis through its center and perpendicular to the plane of the wheel? (The welds contribute n...

Answers

The following answers were posted by visitors named Joe Schmo.

Thank you very much! I just have one more question for you. How did you get L = 4/cosA + 8/sinA?