Science & Mathematics - 28 November 2007

Help! I am 14 years old and I am doing a science project At What Velocity Does My Punch Have To Travel To Stop A Human Heart? I video recorded my punches and uploaded the video showing the duration of my punch from frames 50:19 to 50:23 -so .4secs. 50:21-50:23=.2sec. Using the formula F=ma 2.27kgsx.4m/s/s=.908newtons and 2.27kgsx2.2m/s/s=.54newtons. The 2.27kgs I turned pounds into kgs I looked up on the internet . My fist is about 5lbs. Please check if this is correct. If it is I would like to graph it. What graph should I use bar, linear. . Thamk you .

2007-11-28 03:46:55 · 2 answers · asked by Alfred R 1 in Physics

square root of y+7=5

2007-11-28 03:46:41 · 2 answers · asked by Anonymous in Mathematics

A child’s bank contains $6.30 in dimes and quarters. There are twice as many dimes as quarters. How many of each kind of coin are in the bank?

a 24 dimes and 12 quarters

b 26 dimes and 13 quarters

c 28 dimes and 14 quarters

d No solution, not enough information.



The average of four consecutive even integers is 17. Find the integers.

a 15, 16, 17, and 18

b 16, 18, 20, and 22

c 14, 16, 18, and 20

d No solution, contradictory facts

2007-11-28 03:46:28 · 5 answers · asked by wish on a star 1 in Mathematics

2007-11-28 03:46:13 · 1 answers · asked by (ƸӜƷ) 1 in Mathematics

Please help me because i jjust have no idea???

2007-11-28 03:45:47 · 3 answers · asked by Michele 1 in Earth Sciences & Geology

If not, which other animal species engage in it, also?

2007-11-28 03:42:58 · 23 answers · asked by tangerine 7 in Biology

Data was collected on the average winter temperature and the number of days with snow of a random group of cities in the United States. Identify the correlation you would expect to see between the average winter temperature and the number of days with snow.

2007-11-28 03:39:40 · 2 answers · asked by rain_zazzy 2 in Mathematics

Here are the options, explain your reason:

Havana, Cuba
South Carolina
New York
San Juan, Puerto Rico

2007-11-28 03:37:06 · 2 answers · asked by GDJS 2 in Geography

2007-11-28 03:34:30 · 4 answers · asked by rsumukh 1 in Geography

wood.
2. What will happen if a substance with a mass density greater than water is placed into a container of water?
3. What is room temperature?
4. What is the difference between mass and weight?
5. What makes it difficult to start rolling a large boulder?
6. How are chemical properties and physical properties of matter different?

2007-11-28 03:33:16 · 5 answers · asked by rstewart49 1 in Earth Sciences & Geology

2007-11-28 03:32:50 · 5 answers · asked by Anonymous in Astronomy & Space

Is it because most people on Yahoo answers have a degree in internal/external medicine that there are so many medical questions on Y/A?

2007-11-28 03:32:07 · 4 answers · asked by Star T 7 in Medicine

2007-11-28 03:30:48 · 13 answers · asked by Amy 6 in Mathematics

Consider a rectangular industrial warehouse separated into 3 rectangular spaces of equal size. Assume that the wall materials cost 200$ per linear foot and the company allocates $2400,000 for the project. Find the area of each compartment if the total are of the warehouse is a maximum. Anyhelp is appreciated!

2007-11-28 03:30:15 · 1 answers · asked by Erika H 5 in Mathematics

2007-11-28 03:26:30 · 4 answers · asked by Anonymous in Physics

I have this speech class in a community college (9 week session)
8-11 am (the teacher let sus out at 10:30)
there are a totoal of 16 days of class (exluding veterns day...I don't know if that still counts.
I've been absnt 3 times
in the college handbook, it reads.
When the hours of absence exceed one more than twice the number of class hours per week, the students are considered excessively absent

2007-11-28 03:25:56 · 20 answers · asked by Anonymous in Mathematics

the bottom is 8.slope side is 12 and the other side is x. please help

2007-11-28 03:24:39 · 2 answers · asked by Anonymous in Mathematics

enjoy and thanks! =)

2007-11-28 03:23:16 · 14 answers · asked by jaja 2 in Astronomy & Space

2007-11-28 03:18:05 · 4 answers · asked by Anonymous in Mathematics

2007-11-28 03:17:25 · 12 answers · asked by Anonymous in Astronomy & Space

2007-11-28 03:16:26 · 5 answers · asked by adams girl 2 in Medicine

2007-11-28 03:13:51 · 1 answers · asked by Man Man 1 in Engineering

2007-11-28 03:09:59 · 2 answers · asked by mary tyler moo 3 in Biology

astrology

2007-11-28 03:08:52 · 6 answers · asked by Anonymous in Astronomy & Space

2007-11-28 03:08:28 · 6 answers · asked by pushpam 2 in Astronomy & Space

i did alright but i guess i got every question about % wrong

so how do i know if i pass do i need to get mostly right to pass that test

2007-11-28 03:07:32 · 3 answers · asked by Monster 1 in Mathematics

give the best invention that has changed every thing.

2007-11-28 03:07:08 · 13 answers · asked by Anonymous in Other - Science

2007-11-28 03:03:00 · 4 answers · asked by Anonymous in Mathematics

OK this question is not about Puerto Rico.. It is about bugs. But I need an answer from someone who has been to PR & lives in the NE USA. I live in Philadelphia in a very crowded inner-city part where everyone lives in rowhomes. The neighborhood is mostly puerto rican. Last Night I found a huge bug in my house. I think it was a Giant Water Bug or a Cockroach from Puerto Rico. My guess would be a giant water bug but people travel back & forth to PR alot & it is possible maybe it came home w/ someone & got into my house. How do I tell the difference?? It looked just like the roaches I see in PR. But I remember when I was a kid my grandma had a water bug in here house & it looked the same too. It was very hard to kill & had long antennas. What was it?? It looked similar to this, but I couldnt find a good pic of a pr roach. Thanks 10 pts.

http://www.pca.state.mn.us/kids/c-october.html

2007-11-28 03:01:59 · 2 answers · asked by nena 6 in Earth Sciences & Geology

2007-11-28 02:53:48 · 3 answers · asked by Hyperbolic Logic 2 in Mathematics