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April 16, 2014

Homework Help: Science

Branches of Science

Recent Science Questions

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Science - ?
Hmmm. I get d3 = 6*4 + 1/2 (-6/4)*4^2 since v goes from 6 to 0 in 4 seconds. bob's the physicist, but ...
Sunday, March 2, 2014 at 12:24pm

science
h = 15.8 + (25.2 sin 32.7°)t - 4.9t^2 = 15.8 + 13.61t - 4.9t^2 I get max height = 25.25 at t=1.388, which is as you say, 9.46m above the roof. h=0 when t=3.66 v = 13.61 - 9.8t = -22.26 when h=0
Sunday, March 2, 2014 at 12:16pm

Science
Ok, I see it now, the total displacement is the sum of d1=1/2 *1*6^2 d2= 1*6*12 d3=1/2 (-1*6*12)/4 *4^2 check those... then floor=displacement/3 + 1 assuming ground floor is called floor 1 displacement= d1+d2+d3
Sunday, March 2, 2014 at 7:04am

Science
with what constant deacceleration value?
Sunday, March 2, 2014 at 7:01am

science
An airplane pilot sets a compass course due west and maintains an airspeed of 225km/h . After flying for a time of 0.520h , she finds herself over a town a distance 122km west and a distance 15km south of her starting point. Part A Find the magnitude of the wind velocity. v = ...
Sunday, March 2, 2014 at 6:23am

Science
The slevator starts at 1st floor and accelerated 1m/s^2 for 6 seconds and continues at a constant velocity for 12 seconds more and is then stopped in 4 seconds with constant deceleration. If the floors are 3 meters apart at what floor does the elevator stops?
Sunday, March 2, 2014 at 5:51am

science
A man stands on the roof of a building of height 15.8m and throws a rock with a velocity of magnitude 25.2m/s at an angle of 32.7∘ above the horizontal. You can ignore air resistance. Part A Calculate the maximum height above the roof reached by the rock. y = 9....
Sunday, March 2, 2014 at 5:20am

Science
http://www.google.com/search?q=brain+con​volutions&tbm=isch&tbo=u&source=univ&sa=​X&ei=7qcSU4XrEKjhyQHF24CgBQ&sqi=2&ved=0C​CQQsAQ&biw=1366&bih=643
Saturday, March 1, 2014 at 10:40pm

Science
Why do you think the human brain has more convolutions than a pig brain?
Saturday, March 1, 2014 at 10:36pm

Science
Right.
Saturday, March 1, 2014 at 10:36pm

Science
In order to prevent a mass erosion event, like we experienced in 1930's Dust Bowl event, which of the following should farmers do? A.) remove worms, ants, and other organisms that live in the soil B.) Keep the land irrigated C.) remove native grasses D. plant the same crop...
Saturday, March 1, 2014 at 10:33pm

physical science
a = (V-Vo)/t = (20-0)/15 = 1.33 m/s^2.
Saturday, March 1, 2014 at 8:10pm

Science
Google- plate tectonics mountain formation -maybe?
Saturday, March 1, 2014 at 7:22pm

Science
What is a mountain's origin?
Saturday, March 1, 2014 at 7:16pm

Science
What would happen if you moved the bar magnets further away from the armature when the St.Louis motor was running? Please help! I have been searching for r The answer for days and can't find it anywhere Thank you
Saturday, March 1, 2014 at 6:36pm

Science
Since people are omnivores, we could become predators and prey on deer.
Saturday, March 1, 2014 at 3:07pm

Science
Vocab Words:decomposer carnivores herbivores producer food chain food web predators prey omnivores scavengers photosyntheis . :)
Saturday, March 1, 2014 at 3:03pm

science
reason for _______ earth is tilted 23 1/2 from a line perpendicular to its orbit, the length of daylight varies and because of the angle at which the sun's energy strikes a given location through the years
Saturday, March 1, 2014 at 2:56pm

science - incomplete
What are your vocabulary words?
Saturday, March 1, 2014 at 2:55pm

Science
Help Ms.sue
Saturday, March 1, 2014 at 2:43pm

Science
What Would Happen If We Hunted Deer Population Use Three Vocab Words HELP Ms.sue :) btw this is about the food chain
Saturday, March 1, 2014 at 2:41pm

science
Average about 28 days. Diagram lacking. You cannot copy and paste here.
Saturday, March 1, 2014 at 12:50pm

science (?)
It would help greatly to know the context of the term.
Saturday, March 1, 2014 at 12:41pm

Science
Why are generators not allowed in Niagara Falls? I am assuming that it has something to do with environment but I can't find the exact answer anywhere ?
Saturday, March 1, 2014 at 12:26pm

science
unscramble rorpsfgnloaedeasi
Saturday, March 1, 2014 at 11:39am

science
lol
Saturday, March 1, 2014 at 11:37am

science
lol
Saturday, March 1, 2014 at 11:36am

Life science, history, geography, and maths literacy
Katlehong technical
Saturday, March 1, 2014 at 10:53am

science
I suspect you had a reading to do, and you are supposed to be using context clues to figure out the meaning here. I suspect b or d, but you have to look for other clues in the reading.
Saturday, March 1, 2014 at 6:30am

Science
time in air: hf=ho+vo*sin20*t-4.9t^2 hf,ho=0, vo given 11m/s solve for time. Now, how far d=voCos20*time
Saturday, March 1, 2014 at 6:14am

Science
A long jumper leaves the ground at an angle of 20 degrees above horizontal and at a speed of 11m/s..how far does he jump?
Saturday, March 1, 2014 at 3:56am

science
2. when the speakers refers to pausing " enjoyed the view / of the trees and the folwers," he really is about ( 1point ) A .looking down at the view from the mountain b. giving up the struggle to just focus on his past successes c. begin inspired by the beauty of ...
Saturday, March 1, 2014 at 12:09am

Science
What three things can be done to increase the speed and power of a St.Louis electric motor?
Friday, February 28, 2014 at 11:27pm

science
It's discharged as menstrual flow.
Friday, February 28, 2014 at 10:52pm

science
2. which of the following happens when a low - mass star runs out of fuel ? choose all that apply . ( 3points ) A ITS CORE BECOMES A WHITE DWARF B ITS OUTER LAYERS FORM a nebula , or vast cloud of gas and dust c its outer layers expand , and the star becomes a red giant d. gas...
Friday, February 28, 2014 at 10:51pm

science
.What happens to the endometrial tissue if the egg does not get fertilized ?
Friday, February 28, 2014 at 10:44pm

science
3.what hormone stimulates the thickening of the endometrial tissue? 4.Describes what occurs to the follicle around day 13 and 14 ? what is this process called ?
Friday, February 28, 2014 at 10:44pm

science
1.Approximately how long (in days)is the female reproductive cycle?? Describe the structure that is 2.illustrated at the bottom of the diagram .What is it called ?
Friday, February 28, 2014 at 10:43pm

science
Explain the difference between the ovarian cycle and the menstrual cycle ??
Friday, February 28, 2014 at 10:34pm

science
4. a scientist exams a sample of an object from the solar system . there is evidence that the object included ice . the sample most likely comes from a(n) ( 1point ) a . Asteroid b. comet c dwarf planet d meteroroid
Friday, February 28, 2014 at 9:34pm

science
hmmmm.
Friday, February 28, 2014 at 9:23pm

science
None.
Friday, February 28, 2014 at 9:23pm

science
Which statement is true regarding the cost of climate change adaptation discussed in the text? (Points : 1
Friday, February 28, 2014 at 9:19pm

Science
2. Which step in the nitrogen cycle is accelerated at the beginning of the eutrophication process? (1 point) A) denitrification B) nitrogen fixation C) producer uptake of nitrogen*** D) consumer decomposition Am I correct?
Friday, February 28, 2014 at 7:39pm

Science
Thanks, but the thing is that I don't know what element to look for. I only have the characteristics.
Friday, February 28, 2014 at 4:02pm

Science please help
Thank you so much, I get this now:)
Friday, February 28, 2014 at 4:00pm

Science
Type webelements in your search box, and that website will give you all the kind of information of all kinds of elements. Just click: Chemistry » Periodic Table » essential data and description
Friday, February 28, 2014 at 2:58pm

Science
Agree
Friday, February 28, 2014 at 2:35pm

Science
A scientist is trying to determine the identity of an element. It is highly reactive in water and forms an ionic bond with chlorine. It is also very shiny. The element is most likely 1. from group 17 2. from group 1 3. from group 15 4. a noble gas 3?
Friday, February 28, 2014 at 2:02pm

Science
To form an oxygen molecule (O2), two oxygen atoms share two pairs of electrons. What kind of bond is shown by this? Select all which apply. Ionic Bond Single Bond Double Bond Covalent Bond Triple Bond C and D?
Friday, February 28, 2014 at 1:38pm

Science
What is true about the element francium (Fr, atomic number 87)? Choose all that apply. A) It has seven valence electrons. B) It is likely to form ionic bonds. C) It is in Period 7. D) It is nonmetal. E) It is a metal. I think it is B, C, and E?
Friday, February 28, 2014 at 12:36pm

SCIENCE
http://www.google.com/webhp?source=searc​h_app#q=facial+reconstruction
Friday, February 28, 2014 at 11:02am

Science please help
It is the outer (valence) electrons that participate in bonding. They do so either by giving one of their outer electrons to the other element thereby producing two atoms of opposite charge which attract each other (ionic bond) or by sharing outer electrons (covalent bond) ...
Friday, February 28, 2014 at 10:29am

science
What is a long period of time?
Friday, February 28, 2014 at 10:27am

Science please help
what do we mean when we say that atoms bond? What particles in an atom are responsible for bonding? Table sugar or sucrose is a compound that has the chemical formula C12 H22 and O11 would another chemical made of the same elements still be considered to be sucrose? why or why...
Friday, February 28, 2014 at 10:25am

science
the astronauts can live for long periods of time in a space station? my answers is yes.
Friday, February 28, 2014 at 7:53am

SCIENCE
Will someone please help me find information on facial reconstruction?
Friday, February 28, 2014 at 7:42am

Science
What would happen to an electric motor if the direction of the electric current in the armature did not change directions? Explain. I have read my textbook and googled it and I dint understand what would happen. Please help. Thank you
Friday, February 28, 2014 at 12:52am

Science 3 quick questions
what do we mean when we say that atoms bond? What particles in an atom are responsible for bonding? Table sugar or sucrose is a compound that has the chemical formula C12 H22 and O11 would another chemical made of the same elements still be considered to be sucrose? why or why...
Friday, February 28, 2014 at 12:45am

Science
1. Which of these statements is TRUE? A.The nucleus gives the cell its shape. B. Chloroplasts make food for animal cells. C. Animal cells have many different shapes. D. A plant cell can become a blood cell. C
Thursday, February 27, 2014 at 10:16pm

Science
Right.
Thursday, February 27, 2014 at 10:01pm

Science
1. Which of these is NOT made of cells? a. a rock b. an ant c. moss d. a piece of wood A
Thursday, February 27, 2014 at 9:56pm

Science
1.A 2.C 3.B 4.D 5.C 6.B 7.D figure out the rest by using info and your head :)
Thursday, February 27, 2014 at 9:35pm

science
why did most scientists reject wegener's theory?
Thursday, February 27, 2014 at 8:33pm

Science
66,667
Thursday, February 27, 2014 at 8:27pm

science
post it.
Thursday, February 27, 2014 at 8:04pm

science
F = 3000*cos30
Thursday, February 27, 2014 at 8:02pm

Science
1 and 4 are right. 2. d.
Thursday, February 27, 2014 at 7:42pm

Science
#2 You must observe something stationary, like that billboard
Thursday, February 27, 2014 at 7:42pm

Science - Please Help!
You are welcome :)
Thursday, February 27, 2014 at 7:29pm

Science
http://www.jiskha.com/display.cgi?id=139​3541789
Thursday, February 27, 2014 at 7:25pm

Science - Please Check my Answer 2
no
Thursday, February 27, 2014 at 7:23pm

science
Explain how the concentration of hydronium ions and hydroxide ions are related to pH.
Thursday, February 27, 2014 at 7:21pm

Science
#1. Kilometers per hour describes the speed of an object. ture false **** #2. Which of the following reference points would allow you to observe the speed of a car that you are traveling in? a) an airplane flying across the sky b) a car traveling next to you at the same speed ...
Thursday, February 27, 2014 at 7:15pm

SCIENCE
do mass containe capcity
Thursday, February 27, 2014 at 7:10pm

Science - Is this correct?
Is this correct?
Thursday, February 27, 2014 at 6:28pm

Science - Never mind
Never mind. I figured the answer out. It was 3.9 m/s.
Thursday, February 27, 2014 at 6:24pm

Science ~CHECK ANSWERS PLEASE~
# 3 is right.
Thursday, February 27, 2014 at 6:07pm

Science help! URGENT. Check answers
1. false 2. it can't be acceleration cause it said that the eagle stayed at constant a speed
Thursday, February 27, 2014 at 6:06pm

Science - Please Check my Answer 2
My problem: One runner in a relay race has a 1.50 s lead and is running at a constant speed of 3.25 m/s. The runner has 30.0 m to run before reaching the end of the track. A second runner moves in the same direction as the leader. What constant speed must the second runner ...
Thursday, February 27, 2014 at 5:59pm

Science ~CHECK ANSWERS PLEASE~
#1. Kilometers per hour describes the speed of an object. ture false **** #2. Which of the following reference points would allow you to observe the speed of a car that you are traveling in? a) an airplane flying across the sky b) a car traveling next to you at the same speed ...
Thursday, February 27, 2014 at 5:56pm

Science - Please Check my Answer
My problem: A swimmer travels from the south end to the north end of a 30.0 m pool in 15.0 s and makes the return trip to the starting position in 19.0 s. What is the average velocity for the second half of the swim? My answer: 1.60 m/s to the south Please check! I will really...
Thursday, February 27, 2014 at 5:49pm

Science - Do Not Pay Any Attention to This !! - Damon - Answered it in the Second Post of It
Damon has answered it in the second post of this question.
Thursday, February 27, 2014 at 5:40pm

Science - Please Help!
Thank you Damon! Your post helped a lot. I think I figured out the answer for the problem from the post. Thanks again! :)
Thursday, February 27, 2014 at 5:21pm

Science - Please Help!
average velocity vector= displacement vector/time average speed scalar = distance traveled scalar/time a scalar only has magnitude, like miles or miles/hour a vector has BOTH speed and direction. for speed and distance you only need a speedometer and and odometer. for velocity...
Thursday, February 27, 2014 at 5:14pm

science
true or false. Astronau eat a lot of freeze-dries food because it is lighter and takes up lees room. my answer is true.
Thursday, February 27, 2014 at 5:07pm

Science - Please Help!
How can you tell the similarity between displacement and average velocity? It is for a part of a science problem. The lesson did not tell me how to do this. I have been stuck on that problem for a while. I also had my sister help me, and I looked things up for the problem. I ...
Thursday, February 27, 2014 at 5:05pm

Science
It is for a part of a science problem. The lesson did not tell me how to do this. I have been stuck on that problem for a while. I also had my sister help me, and I looked things up for the problem. Please help, and thank you for any help! :)
Thursday, February 27, 2014 at 4:41pm

Science
How can you tell the similarity between displacement and average velocity? I really do not know. Please help, and I will appreciate it. :)
Thursday, February 27, 2014 at 4:26pm

PHYSICAL SCIENCE
A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping, the average adult burns or expends about 0.45 Cal/h for every pound of body weight. How many Calories would a 179 lb person burn during 10 hours of sleep? (Note that 1 Cal = 1 kcal.)
Thursday, February 27, 2014 at 3:55pm

Science
0.65 m
Thursday, February 27, 2014 at 3:31pm

Science
http://en.wikipedia.org/wiki/Planets_bey​ond_Neptune
Thursday, February 27, 2014 at 1:52pm

science
m
Thursday, February 27, 2014 at 1:44pm

Science
Is planet X a Large asteroid?
Thursday, February 27, 2014 at 1:43pm

Science
Planet X is now consider a Kuiper belt object. True or False
Thursday, February 27, 2014 at 1:41pm

SCIENCE
. baffin bay tide data table 


tide table 

DAY 
time
height(meters)
&​#8232;
M


6:00a​m 
2;00pm

10;30 
1.5
6.7
1.7
​232;
tuesday&#...
Thursday, February 27, 2014 at 12:24pm

political science
http://en.wikipedia.org/wiki/Constitutio​n_of_Georgia_(U.S._state)
Thursday, February 27, 2014 at 12:21pm

science
See the Related Questions below.
Thursday, February 27, 2014 at 12:13pm

SCIENCE
Charts can't be posted here.
Thursday, February 27, 2014 at 12:10pm

SCIENCE
20 . referring to the following chart , describe how the height of the tides changes from monday to the thursday 
Thursday, February 27, 2014 at 12:01pm

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