lizbeth

Popular questions and responses by lizbeth
1. science

1. According to the trend shown by the graph what volume of water would you expect after 35 seconds of dripping A. Approximately 10mL B. Approximately 12 mL C. Approximately 20 mL D. Approximately 25 mL 2. What is the relationship between the volume of

2. physics

One of the conditions for Uniform Circular Motion is that the acceleration be centripetal and directed toward the center of motion. What would the effect be of a non-zero acceleration parallel to the tangential velocity?

3. PHYSICS

Calculate the power output of a 1.3-g fly as it walks straight up a windowpane at 2.5 cm/s

4. speeh

Which of the following are examples of mnemonics? Select all that apply. a short rhyme repeating something several times an acronym memorable phrases NEXT QUESTION

5. trigonometry

(secx - tanx)(cscx+1) =cotx

6. math

tanx +cotx=secx cscx

7. physics

A 110 g ball has a kinetic energy 39.8 J. What's the magnitude of its momentum? Use your answer to find its speed. K=p^2/2m 39.8=p^2/(2*110) 8756=p^2 p=93.5735 kg*m/s ^this is wrong though. where did I go wrong?

8. Science

Luis is an avid baseball player. For his science project, he decides to test which type of bat is best for hitting home runs. Luis prefers to use an aluminum bat when he plays, so he hypothesizes that he will hit more home runs using an aluminum bat than a

9. science

Luis is an avid baseball player. For his science project, he decides to test which type of bat is best for hitting home runs. Luis prefers to use an aluminum bat when he plays, so he hypothesizes that he will hit more home runs using an aluminum bat than a

10. Math

Rod is 6feet tell he casts a 3-foot-long shadow at the Same time a tree casts an 8-foot-long shadow what is the height of the tree

11. physics

A window air conditioner consumes 900 W of electric power and has COP = 2.9.If it runs continuously for 24 h , how much heat gets removed from the house?

12. physics

Consider air to be a mixture of 80% nitrogen and 20% oxygen. How much work is required to raise the temperature of 7 mol of air by 9 ∘C in an adiabatic process?

13. physics

Consider air to be a mixture of 80% nitrogen and 20% oxygen. How much work is required to raise the temperature of 7 mol of air by 9 ∘C in an adiabatic process?

14. PHYSICS

Suppose you have a spherical balloon filled with air at room temperature and 1.0 atm pressure; its radius is 17 cm . You take the balloon in an airplane, where the pressure is 0.89 atm. If the temperature is unchanged, what's the balloon's new radius?

15. physics

Two stars with masses 2.75 x 10^30 kg and 5.92 x 10^30 kg form a binary system. If the two stars have an average separation of 7.28×10^8 km, compute the magnitude of the gravitational force in Newtons between the stars. Express your result in scientific

16. physics

At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 0.20%? At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 2.0%? At what height above Earth's

17. physics

At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 0.20%? At what height above Earth's surface is the gravitational acceleration reduced from its sea-level value by 2.0%? At what height above Earth's

18. physics

. 0.30m ....|______|_________________________ ....|...../\ ...|_|

19. physics

A bicycle has 67.0 cm diameter wheels turning at 11.2 rev/s. How fast is the bicycle moving?

20. physics

A boxcar of mass 3.21 x 10^4 kg is rolling south at 5.16 m/s when it collides and couples with another boxcar of mass 5.18 x 10^4 kg that is rolling north at 2.38 m/s. What is the velocity of the coupled boxcars after collision? Take north as positive and

21. physics

A boxcar of mass 3.21 x 10^4 kg is rolling south at 5.16 m/s when it collides and couples with another boxcar of mass 5.18 x 10^4 kg that is rolling north at 2.38 m/s. What is the velocity of the coupled boxcars after collision? Take north as positive and

22. physics

Two railroad freight cars with masses 110 Mg and 150 Mg approach with equal speeds of 0.310 m/s . They collide, the lighter car rebounding opposite its original direction at 0.270 m/s. Find the velocity of the heavier car after the collision. Assume the

23. physics

A 71 kg skater and a 59 kg skater stand at rest on frictionless ice. They push off, and the 71 kg skater moves at 2.5 m/s in the + x-direction. What's the other's velocity?

24. physics

A 1180 kg car and 4720 kg truck undergo a perfectly inelastic collision. Before the collision, the car was traveling southward at 1.45 m/s , and the truck westward at 8.80 m/s. Find the velocity of the wreckage immediately after the collision. Enter the x

25. Science

Which of the following is a way to practice safe science? A. Rewrite directions. B. Taste chemicals. C. Wash your hands. D. Discard your apron.

26. math

Remember to show all of the steps that you use to solve the problem. (–1.15) × 3.2 =

27. com 220

what is the importance of incorporating statistics, graph and illustration

28. com 220

Assignment: Incorporating Statistics, Graphs, and Illustrations ... com 220. How does the author of A Nation Apart organize information to build his

29. science

A force can make an object start to move or it can xxxxx it up or xxxx it down. We think the answers for x are speed and slow. A magnetic force exists between a magnet and a magnetic material such as xxxx and xxxxx. These materials are attracted to a

30. science/english

Please could someone tell me the meaning of drawn (as in hung, drawn and quartered.) Thanks This site has a gory description of being hung, drawn and quartered. http://en.wikipedia.org/wiki/Drawing_and_quartering

31. english

we have to find out meaning of words, e.g. english word - sherbet, language of origin - arabic, old word - sharabat, old meaning - drink. please could someone tell me a website that gives language of origin, old word and old meaning. I have tried a couple

32. history

i have to draw a picture of a crusader soldier from the middle ages. i have tried a couple of websites but as i do not know what one looks like, i don't know which is correct. please help. http://www.albionmonitor.com/0404a/crusader.gif Thank you for using

1. Math

It's 3 2/6 not 2 1/6

posted on March 9, 2020
2. Math

posted on March 9, 2020
3. Math

i think is 24 because 6x4=24

posted on September 3, 2019
4. Math

A plant grows 3 centimeters in 10 days. How much does it grow per day?

posted on February 27, 2018
5. math

Hi every one sorry but i need help i am in 3 grade but i have 4 grade work

posted on June 15, 2017
6. Math

Half the boys said yes so that means 17 boys said no. 17+17= 34 boys. 100 students minus 34 boys equals 66 girls. Now, 2/3 of 66 is 44 because 22 times 3= 66. So that means that 44 girls said yes and 17 boys said yes so 44+17= 61 seventh graders that know

posted on March 9, 2017
7. algebra

The fact I can see you soon as possible and to get my nails are you doing it wrong that I'm going back and I don't think that it was not immediately available to all of them in my head and a lot more fun and addicting and I don't think that it was not

posted on November 22, 2016
8. Math

It is 39%

posted on October 5, 2016
9. math

Why number gives the same result when it add to 1 1/2

posted on May 6, 2016
10. physics

What am I doing wrong... for .2% g=9.8-(.002*9.8) .0196 =9.7804 r=sqrt(GM/g) sqrt(3.9886*10^14)/9.7804 6386044.4 6386044.4-6371000=15044 m or aprx 15 km ?

posted on March 9, 2016
11. physics

its a yardstick on a fulcrum. on the left hand side a block is hanging from a string. I tried to submit it with a url but it would not let me so i attempted to draw it out. the length of the meterstick from the lefthand side to the fulcrum is .30m

posted on March 7, 2016
12. physics

. ....0.30m ....|______|_________________________ ....|........../\ ...|_|

posted on March 6, 2016
13. physics

-.505

posted on February 23, 2016
14. physics

I am calculating -.28 m/s for the 1st part but it is not correct.

posted on February 22, 2016
15. geometry

I don't get this question

posted on October 3, 2012
16. science

i need help with mmy homework

posted on November 6, 2010
17. Forensic Psychology

what is quantitative

posted on December 1, 2008
18. science

Thanks for your answer. The letters we have are lxxx and the third letter of slow goes through. We think slow is correct but cannot see how lead fits (if it is correct) as it would be lxox. We cannot think of another word beginning with l. Hope you can

posted on December 7, 2007