Thursday
April 24, 2014

Posts by Vinny


Total # Posts: 32

Physics
During a free kick at a soccer playoff game a 0.5 kg ball at the peak of the kick 16.6 m above the field had a kinetic energy of 35.4 J. How fast was the ball booted by the player on the field?

Honors Physics
0.5 kg ball at the peak of the kick 16.6 m above the field had a kinetic energy of 35.4 J. How fast was the ball booted by the player on the field?

Physics
The launching speed of a certain projectile is 9.8 times the speed it has at its maximum height. Calculate the elevation angle at launching.

Physics
The launching speed of a certain projectile is 9.8 times the speed it has at its maximum height. Calculate the elevation angle at launching.

Physics
The launching speed of a certain projectile is 9.8 times the speed it has at its maximum height. Calculate the elevation angle at launching.

general physics
The highest barrier that a projectile can clear is 18.8 m, when the projectile is launched at an angle of 59.0 ° above the horizontal. What is the projectile's launch speed?

Math
how can you go about in calculating vertical and horizontal asymptotes?

English
Yes, it is correct

Chemistry
How much of a 2.0 molar NaCl solution would you need to make 250 mL of a .15 molar NaCl solution?

Economics
Explain how an effective price ceiling affects buyers and how it affects sellers in a competitive market.

chemistry
how can i find pH using scientific notation? 1*10^1 1*10^2

math
800

Chemistry
C2H5OH + O2 -> C2H4O2 +H20 This reaction drastically changes the taste of wine, if 100.0 mL of wine initially contained 12.0 g of ethanol and after a period of time 4.00 g of acetic acid were detected, what percent of the ethanol had been converted?

Chemistry
Determine how many grams of active antacid ingredient AL(OH)3 would be necessary to neutralize the HCL in 50.0 mL of .0100 M HCL (an approximation of the conc. of HCL in the stomach) 3HCL9aq)+AL(OH)3(s)-> AlCL3 (aq) = 3H2O (L)

Chemistry
2MnO4-(aq) +5 H2O2 (aq) + 6H+(aq) -> 5 O2(g) + 2 (Mn2+(aq) = 8H2O (l) If a 25.00 ml sample of hydro peroxide required 25.25 ml of .353 M KMNo4 solution to react with all the hydrogen perozide what was the molarity of the hydrogen peroxide solution?

Chemistry
What volume of .300 M CaCl2 is needed to react completely with 40.00 Ml of .200 M H2PO4. according to the following equation 3 CaCl2 (aq) + 2 H3PO4 (aq)-> Ca3(po44)2 + 6 HCL (aq)

Chemistry
Thank you!

Chemistry
.220 mol per liter

Chemistry
0.255 g sample of H2C2O4 required 25.70 mL of NaOH to neutralize, what would you report as the molarity of NaOH solution? the reaction is as follows: H2C2O4(aq) +2 NaOH (aq) -> Na2C2O4(aq) +2 HOH (l)

math
What is 5,280 feet divided by 26 miles? 5th grade

Chemistry
What are all the resonance Structures of Carbon Tetraoxide?

calc
(e^x)e^x+1)/(e^x-1)=8

precalc
yes it is x squared

6th grade science
how come a chromosome is not visible in an onion cell

Chem
plz help :(

Chem
Hi everyone, I'm having problems with effective nuclear charge. Regarding these problems. Calculate Zeff for a valence electron in an oxygen atom. and Calculate Zeff for the 4s electron in a copper atom, . and Calculate Zeff for a 3d electron in a copper atom, Cu. Like for...

5th grade
What did Henry Hudson negotiate with his crew and the natives?

5th grade-social studies
How Hudson could have negotiated to improve his circumstances with his crew and the natives?

5th grade-social studies
How Hudson could have negotiated to improve his circumstances with his crew and the natives?

science
The number of letters that could represent an element is?

climate graphs
I need a climate graph of Rome Italy NOW! my homework is due next period!

Physics
Emily passes a soccer ball 9.7 m directly across the field to Kara, who then kicks the ball 11.7 m directly down the field to Luisa. What is the magnitude of the ball’s total displacement as it travels between Emily and Luisa? Answer in units of m 016 (part 2 of 2) 10.0 p...

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