Homework Help - January 2007

2007-01-25 14:46:09 · 3 answers · asked by Anonymous

A car traveling at 95 km/h strikes a tree. The front end of the car collapses and the driver comes to rest after traveling .80 m. What was the average acceleration of the driver during the collision? Express the answer in terms of "g's", where 1.00 g = 9.80 m/s^2.

I know the answer is -440 m/s or 44 g's.

help would be appreciated... i got all my other problems but this one. It baffels me.

2007-01-25 14:39:55 · 2 answers · asked by mono 1

A 0.5 kg ball hits a wall traveling in a positive direction at 5 m/s. It rebounds directly back from the wall at a speed of 5 m/s. Determine the change in momentum of this ball.
A {( kg*m)/s}*2.5
B {( kg*m)/s}*-2.5
C {( kg*m)/s}*5
D {( kg*m)/s}*-5

2007-01-25 14:33:34 · 1 answers · asked by maconheira 4

2007-01-25 14:33:09 · 39 answers · asked by cute4long 2

My Project work is all about Payroll system in ms excel. I have to enter the information of employes of a certein company. I have to use facts like name, basic salary, HA, DA, HRA, House loan etc of some employes and finally calculating the Gross payment and Net payment of employes in ms-excel. please help me in understanding these facts. If anybody know the web sites based on these information, please tell it to me. thanks in advance.

2007-01-25 14:32:47 · 1 answers · asked by Anonymous

What is an example of a simple machine lever (first class) that
increases effort force; may change direction of effort force. that's resistance force is over a shorter distance, and that is a rigid bar free to move about a fixed point (fulcrum)? A see saw?

What is an example of a simple machine that is a wedge, that changes direction of effort force, and is is a modified inclined plane with 1 or 2 sloping sides? An Axe?

2007-01-25 14:28:11 · 3 answers · asked by maconheira 4

ok so im in 4-h and public speaking is coming up so i need some ideas about what to talk about. It should be a good topic that is acceptable to talk about in 4-h. or if you have any ideas for a presentation i could do that would work as well.

2007-01-25 14:23:22 · 4 answers · asked by Heather F 1

this piece of homework was due today and i totaly forgot i have to make a tee shirt slogan for cholera if anyone can come up with a good slogan they get 10 points for the best answer!!! please help me!!!

2007-01-25 14:20:09 · 3 answers · asked by anime_manga_geek 2

Meters
0,2,4,6,8,10
They toy care one travels
0,1.50 in 2 meters,3.17 in 4 meters,4.20 in 6 meters,6.28 in8 meters,7.60 in 10 meters.
the toy car two travels
1.24 in 2 meters,1.75 in 4 meters,3.87 in 6 meters,4.38 in 8 meters,6.04 in 10 meters.
the toy car 3 travels.
1.41 in 2 meters,2.54 in 4 meters,3.02 in 6 meters,3.53 in 8 meters,5.18 in 10 meters.
How can i graph this?

2007-01-25 14:18:08 · 1 answers · asked by Anonymous

its a legitmate piece of literature, dont be offended.

2007-01-25 14:14:35 · 2 answers · asked by cassandracorrao 3

How much work will be necessary for the band members to safely move the new 120 kilogram amplifier to the garage where they practice? The amplifier needs to be moved a total distance of 35 meters.

For the activities listed below, list one way in which work is done and two simple machines which are used in each task:

a. making a meal
b. traveling to school
c. moving to a new apartment
d. playing in a rock band

2007-01-25 14:14:18 · 1 answers · asked by maconheira 4

2x - 5y + 2z = 5a + 2b
-5y + 2x = 2z -2b -5a
GOOD LUCK SHOW WORK!
(i already know the answer)

2007-01-25 14:14:09 · 1 answers · asked by Allison 1

solve using any algebraic method.

x + y + 2z = 5
x + 2y = z = 8
2x + 3y - z = 1

can someone please help me!

2007-01-25 14:12:39 · 4 answers · asked by andrew 1

2007-01-25 14:12:18 · 2 answers · asked by Theater freak 2

ok at school we use graphing calculators &
my teacher said that if we can find a way to
convert fractions to decimals and decimals
to fractions that she would give us extra credit
because she cant figure it out so if anyone
knows PLEASE HELP. thanks <3

2007-01-25 14:11:30 · 2 answers · asked by ASHLEY MARiiE <3 2

2007-01-25 14:11:28 · 7 answers · asked by zoe13faye 2

plz i need one and i caant think one up

2007-01-25 14:09:00 · 8 answers · asked by Anonymous

2007-01-25 14:08:45 · 49 answers · asked by Anonymous

I have to write an essay on the topic, ''Reflection/ Insight on your past'', but I don't know what to start with. The essay needs to arouse public resonance, which I think is the most difficult and confusing part. Can anyone help me and give me some advice?

2007-01-25 14:04:26 · 6 answers · asked by Anonymous

2007-01-25 14:04:12 · 5 answers · asked by Angela D 1

2007-01-25 13:56:32 · 7 answers · asked by poogie 1

an emotional effect in this story. This story, when completed is to be typed, 12 point font Times New Roman, double spaced, and 2-4 pages in length.

THANK YOU!

2007-01-25 13:54:41 · 5 answers · asked by Chelsey 5

Select the choices in which work is done by recording "yes" or "no":

a. Reese completing her chemistry homework
b. the movers carrying Catalina's amplifier from the moving truck to her house
c. Li pushing his motorcycle down his driveway
d. Reese carrying several encyclopedias
e. Catalina picking up a piece of sheet music from the floor
f. Cory pushing a stalled car but unable to get it to move
g. pushing a science book along a table

my answers

a. yes
b. yes
c. yes
d. yes
e. yes
f. no
g. yes

2007-01-25 13:48:02 · 3 answers · asked by maconheira 4

It has to be on either a health issue or a environment issue,it has to be a persuasive paper,and the topic is due TOMMOROW!!!!!!!!

2007-01-25 13:45:15 · 10 answers · asked by Pink Girl 2

What is the difference between a simple and a compound machine?

1. A simple machine uses two or more compound machines working together.
2. A compound machine uses two or more simple machines working together.
3. Simple machines only increase force; compound machines only increase distance.
4. Compound machines only increase force; simple machines only increase distance.

For a machine with an efficiency of 80%, what is the work output of the machine if its work input is 2,000 joules?

1. 16 joules
2. 160 joules
3. 1,600 joules
4. 2,500 joules

If a machine requires an effort force of 750 newtons applied over a distance of 2 meters, over what resistance distance is the machine acting if the resistance force has a value of 150 newtons? Assume that it is an ideal machine. (HINT: Use the equation Fe x de = F r x dr)

1. 5 meters
2. 10 meter
3. 150 meters
4. 300 meters

2007-01-25 13:45:05 · 1 answers · asked by maconheira 4

Question 11:
If the perimeter of a rectangular bathroom room is 22 meters and its length is 6 meters, find its width.





m
Question 12:
If you drive 350 miles in 7 hours, what is your average speed?





mph
Question 13:
A plane flies from Des Moines, IA to Los Angeles, CA, a 1435-mi trip, in 5 hours. What is the plane's average speed?





mph
Question 14:
Use the formula F = (9/5)(C) + 32. If it is 59 degrees Fahrenheit outside, what is the temperature in Celsius?





degrees Celsius
Question 15:
A jogger and a walker leave the same location at the same time and travel on the same road. The walker moves at a constant speed of 6 mph. At the end of 2 hours the jogger is 8 miles ahead of the walker. Find the speed of the jogger. Use a chart to help you organize the information.





mph
Question 16:
Carol invests $2500 for one year. She invests part in a bond paying 5 percent and the rest in a stock paying 3 percent. If the total interest received is $95.00, how much was invested in the bond? Use a chart to help you organize the information.





$
Question 17:
For Question #16, how much was invested in the stock?





$
Question 18:
A plane flies from Portland, ME to El Paso, TX with an average speed of 303 mph. A car drives the same distance and leaves at the same time, averaging a speed of 50 mph. The plane arrives in El Paso 35.42 hours before the car. How far is it from Portland to El Paso? Use a chart to help you organize the information.





miles
Question 19:
The Party Bank pays four percent simple interest per year on deposits. Connor was paid $1,104 of interest over a four year period. How much did he originally deposit?





$
Question 20:
Alexis left a location at 8 a.m. The channel three news sent a helicopter from the same location eight hours later to catch up with Alexis. The helicopter's average rate of speed is one hundred fifty mph. If Alexis traveled at 53 mph, how far did she drive?





Enter a decimal rounded to the hundredths place.
miles

2007-01-25 13:42:13 · 1 answers · asked by me1026 1

Ok, Algebra II
first person to give me an answer that works, and HOW they got it gets the 10 points.

(Radical -13)(Radical -26)
thats the sqare root of -13 times square root of -26

2007-01-25 13:41:38 · 15 answers · asked by .legato 2

2007-01-25 13:41:12 · 11 answers · asked by Crystal J 1

If you have can you please take a lil bit of your time and tell me what the whole book is about? Cause I like REALLY need 2 know! So briefy like say the begginng, middle, end important parts, and things inbetween. thank you soooo much!!! :D

2007-01-25 13:39:44 · 9 answers · asked by Anonymous

Can someone help me think of a good sentece for cinder-cone volcano, sheild volacno, and composite volcano? It would be a BIG help, thanks :)

2007-01-25 13:39:42 · 1 answers · asked by Amber L 1