# A model rocket is launched from a roof of a building. Its path is described by the relationship h=-5t*2+35t+10, where h is the height in metres and t is the time in seconds. How tall is the building? What is

13,356 questions, page 64
1. ## Physics

A military jet fighter plane flying at 180m/s pulls out of a vertical dive by turning upward along a circular path of radius 860m. What is the acceleration of the plane? Express the acceleration as a multiple ofg.

asked by Anonymous on September 16, 2015
2. ## Health

Shawna works in a department that follows a hierarchical structure; what advantages will she most likely experience? increased patient and employee satisfaction decreased patient stay and increased efficiency clearly defined roles and a clear path for

asked by romeo on September 14, 2018
3. ## Math

A projectile is launched upward from the ground at an initial velocity of 400 feet per second. During it’s upward flight, the projectile passes a hot air balloon floating at a constant height of 2400 feet. How many seconds later will the projectile pass

asked by Sunny on December 31, 2015
4. ## physics

On July 15, 2004, NASA launched the Aura spacecraft to study the earth's climate and atmosphere. This satellite was injected into an orbit 705 {\rm km} above the earth's surface, and we shall assume a circular orbit. How many hours does it take this

asked by Amber on April 27, 2012
5. ## physics

A ball is projected upward at time t = 0.0 s, from a point on a roof 40 m above the ground. The ball rises, then falls and strikes the ground. The initial velocity of the ball is 15.4m/s. Consider all quantities as positive in the upward direction. The

6. ## physics

Imagine a boat is being rowed upstream where v1 is the velocity of the boat and v2 is the velocity of the stream. What is the time required if the boat tends to cross the river along the shortest path?

asked by xyz on October 8, 2016
7. ## math

Alex wants to cover a 30 by 30 board perfectly with 450 1 by 2 dominos. He also wants to ensure that he can trace a path between any 2 dominos that connect through at most N dominos. What is the minimum possible value of N which would allow Alex to form

asked by Anonymous on July 30, 2013
8. ## Chemistry help needed

Calculate the pressures, P, in atmospheres at which the mean free path, l, of a hydrogen molecule will be 5.00 μm, 5.00 mm, and 5.00 m at 20.0 °C. The diameter of a H2 molecule is 270 pm. I= 5.00μm 5.00mm 5.00m P= ? atm ? atm ? atm

asked by windal on April 25, 2016
9. ## vector calculus

Show that the given line integral is independent of path.Then, evaluate the line integral I by finding a potential function f and applying the Fundamental Theorem of Line Integrals. I=ç_{(0,0)}^{(1,2)}(x+y)dx+(x-y)dy

asked by Donny on November 28, 2011
10. ## help math

Alex wants to cover a 30 by 30 board perfectly with 450 1 by 2 dominos. He also wants to ensure that he can trace a path between any 2 dominos that connect through at most N dominos. What is the minimum possible value of N which would allow Alex to form

asked by Steve on July 29, 2013
11. ## health

how can systems thinking improve public health efforts? which systems model is most effective and why?

asked by candace on October 22, 2010
12. ## Math

How do I show model to multiply 0.16*0.5? I did try by shading .16 over 0.5 but it giving me .10 answer. I need my answer 0.08. Plz help me what I am doing wrong.

asked by Lauren on September 6, 2017
13. ## Biology

Describe the "Fluid Mosaic Model" of the cell membrane and know the function(s) of each membrane component.

asked by SUSAN on August 30, 2007
14. ## math

the scale drawing of a model is 3 inches which equals 10 feet what is the actual size for 15 inches

asked by jasmine on November 25, 2013
15. ## probability

the model of the car you are thinking of buying is available in five different colors and four different styles. In how many ways can the car be ordered?

asked by Karina on November 10, 2012
16. ## chemistry

According to the Bohr model of the hydrogen atom, how is hydrogen's bright line spectrum produced?

asked by ryan on October 27, 2009
17. ## physical science

a model train moving at a constant speed around a circular track has a constant velocity?

asked by steve on April 4, 2014
18. ## Education

Explain what four general modes of instruction are and what these mean for teaching. What is effective instruction, and do you agree with this model?

asked by Paisley on April 8, 2014
19. ## American Goverment

In the pluralist model, bargaining among groups is carried on by: a.one leader. b.few leaders. c.many leaders. d.voting. D

asked by CHRIS on April 25, 2018
20. ## algebra 1

a model airplane flies 18 feet in 2 seconds. What is the airplane's speed in miles per hour?

asked by Giovanna on December 8, 2008
21. ## geometry

the ratio of a length on a scale drawing or model to the corresponding length on the real object....is called what?

asked by Sage on April 11, 2012
22. ## math

Give your own example of at least four ordered pairs that does not model a function. The domain will be any four integers between 0 and +10. The range will be any four integers between -12 and +5.

asked by tamika on August 1, 2011
23. ## Biology

How does the "Patching and Capping" experiment verify the fluid concept of the Fluid Mosaic model?

asked by Bri on August 30, 2015
24. ## math

write a multiplication equation and a division equation that represent the model shown below.176 16=d

asked by Lakshmi on October 23, 2014
25. ## science

i have to make a 3D model of th e cytoskeleton of an animal cell and i don't know how to make it can someone please give me some ideas?

asked by Anonymous on October 13, 2010
26. ## physics

The net external force on the propeller of a 3.9 kg model airplane is 6.8 N forward. What is the acceleration of the airplane?

asked by Brett on November 13, 2012
27. ## physics

The net external force on the propeller of a 3.9 kg model airplane is 6.8 N forward. What is the acceleration of the airplane?

asked by Brett on November 13, 2012
28. ## politics

.In the pluralist model, bargaining among groups is carried on by: a.one leader. b.few leaders. c.many leaders. d.voting. A?

asked by bev on April 10, 2018

Consider a local business whose services you frequently use. What are the main components of this company's business model?

asked by greatdanelola on February 15, 2008
30. ## algebra

Provide an example of at least five ordered pairs that do not model a function. The domain will be any five integers between 0 and 20. The range will be any five integers between -10 and 10.

asked by Nikki on March 30, 2010
31. ## math

A model of an airplane is 8 inches long. If the actual airplane is 32 feet: What is the scale factor?

asked by Mike on October 30, 2007
32. ## social Studies

which Northern Renaissance painter stuck most closely to the Italian Renaissance model and ideals?

asked by Isaiah on May 30, 2010
33. ## politics

10.In the pluralist model, bargaining among groups is carried on by: a.one leader. b.few leaders. c.many leaders. d.voting. B?

asked by bev on April 8, 2018
34. ## chemistry

how to fit four bonds on one atom? modeling the atoms that make the atomic bonds what would be the 3D model?

asked by Anonymous on February 23, 2018
35. ## History

What Northern Renaissance painter stuck most closely to the Italian Renaissance model and ideals?

asked by Isaiah on May 30, 2010
36. ## stats

For a normal distribution where mx= 80 and sx= 10, the distribution model fits well to test scores of N = 20000 students.

asked by sandra on July 10, 2011
37. ## Physics

On a distant planet, golf is just as popular as it is on earth. A golfer tees off and drives the ball 4.1 times as far as he would have on earth, given the same initial velocities on both planets. The ball is launched at a speed of 50 m/s at an angle of

asked by Anonymous on September 18, 2012
38. ## Physics - Mechanics

A small block of mass 1.2 kg is launched by a compressed spring with force constant k=600 N/m. The initial compression of the spring is 0.15 m. The block slides along a horizontal frictionless surface and then up an inclined plane that makes an angle

asked by Anonymous on March 13, 2015
39. ## Physics - Mechanics

A small block of mass 1.2 kg is launched by a compressed spring with force constant k=600 N/m. The initial compression of the spring is 0.15 m. The block slides along a horizontal frictionless surface and then up an inclined plane that makes an angle

asked by Anonymous on March 14, 2015

compare and contrast Rational (formal) model for strategy- emergent strategy

asked by lolo on October 11, 2015
41. ## Chemistry

Draw a simple model of an atom to show the position of each of the comstituents of the atom.

asked by Shamsuddeen on November 30, 2011
42. ## pre algebra

Actual train size 40 feet gives a model size of 3 inches which scale was used?

asked by gloria on December 3, 2012

compare and contrast Rational (formal) model for strategy- emergent strategy

asked by lulu on October 11, 2015
44. ## PSYCHOLOGY

Can you think of situations when the egoistic model of altruism seems most likely correct? What about the empathy altruism hypothesis?

asked by help on August 24, 2009
45. ## Math

Rewrite each problem as a multiplication question. Model your answer. 1. 2/5 divided by 5 2. 3/4 divided by 2

asked by Anonymous on February 15, 2016
46. ## science

The sun is actually about 865000 miles in diameter, so 1cm of the model represents how many miles?

asked by luca on January 9, 2009
47. ## Physics - Urgent

Which characteristic of matter does the Standard Model not deal with? (hint: it does deal with charge, for example)

asked by Sam on April 8, 2009

compare and contrast Rational (formal) model for strategy- emergent strategy

asked by Anonymous on October 11, 2015
49. ## Help Math

Jodi has a model of a tetrahedron (shown below) and would like to know how many different nets exist for the tetrahedron. How do you respond?

asked by Enis on October 24, 2014
50. ## math

Mark wants to use a grid to model 2/3 like the grids in questions 1 and 2. Its a 100 box grid . help

asked by Jennifer on December 18, 2017
51. ## molecular biology

What's the purpose when experiments use H1/H5 depleted nucleosome as a model? What kind of characteristics do that nucleosome has? Thanks!

asked by Holly on October 16, 2010
52. ## RATIOS

A MODEL TRAIN IS 1;48 ON SCALE. THE ENGINE IS 13 5/8 INCHES. HOW MANY FEET IS THE ACTUAL ENGINE?

asked by alice on February 24, 2013
53. ## government

What is the tripartite view of political parties? Has this model become outdated? If so, why? i got the first part the second part id

asked by Reina Bonilla on December 1, 2014
54. ## Physics

I tried working this out and I got 495 which is wrong. im not sure what to do. A two-stage rocket moves in space at a constant velocity of 4650 m/s. The two stages are then separated by a small explosive charge placed between them. Immediately after the

asked by Xavier on October 26, 2010
55. ## Physics - Uniform circular motion

If you were swingin a ball on a string around in a circle in a vertical plane, at what point in the path would the string be the most likelt to break? Explain why In what direction would the ball fly when the string broke?

asked by Shaila on August 21, 2010
56. ## Geometry

The path of a large stone fired from a torsion catapult can be modeled by y=-0.0054x(squared)+1.145x, where x is the distance the stone traveled (in yards) and y is the hieght of the stone (in yards)

asked by Danielle on November 12, 2008
57. ## Algebra

Points A and C on a map are 12 km apart if you follow a certain path. A troop of Boy Scouts leaves Point A at 11:00 a.m. They travel 3 km/hr because they have heavy packs until they reach Point B at 12:45. If they want to reach Point C by 2:00, how fast

asked by Anonymous on February 28, 2018
58. ## Physics

The athlete shown in the figure rotates a 1.00 kg discus along a circular path of radius 1.07 m. The maximum speed of the discus is 19.0 m/s. Determine the magnitude of the maximum radial acceleration of the discus.

asked by Snooki on February 5, 2011
59. ## physics

If a stone is attached with a string and oscillates in to and fro motion then if the string cuts when the stone is at its highest position then what will be the path of the stone to be travelled

asked by Abhinav tomar on September 24, 2014
60. ## physics

A train passing at point A at a speed of 72 kph accelerates at .75 m/s2 for one minute along a straight path then decelerated at 1.0 m/s2. How far in km from point A will it be 2 minutes after passing point A?

asked by nonoy on August 15, 2010
61. ## physics

A model is 14.5 kg and it is supported by four identical springs. Each spring can oscillate with a frequency of 3Hz. What is the value of the spring constant?

asked by tla on September 28, 2010
62. ## Physics

A model airplane is tethered by a wire. How could you calculate the tangential speed of the airplane if the line breaks?

asked by Yasmn on April 20, 2010
63. ## Math

Katie measures that 6 1/2 pieces of model plane parts were five in one fifth inches long how long is each piece

asked by Johnny on November 10, 2014
64. ## math

Marie used base-ten blocks to model 328 she used 3 hundreds, 2 tens, and 8 ones. for what could you trade one of the tens?

asked by amor on October 5, 2011
65. ## english

True or False: the following sentence demonstrates parallelism: Cameron is an actor, a writer, and former model. true

asked by ryan on December 13, 2017

I kinda need help with this 10.Write a real world problem that you can model with the two step equation 5x+7=10. Then solve the problem.

asked by Thili on November 18, 2016
67. ## math

there are 7 red balloons and 4 fewer blue ballons. use cube trains to model the set of ballons.

asked by nancy on November 18, 2011
68. ## CJ101

Describe what SARA is and explain how it is used in fighting crimes. In what type of policing model is SARA most effectively used? Why?

asked by CHASE on August 3, 2011
69. ## math

Chloe used 30 toothpicks as edges to make a model for a prism. How many sides did the base of her prism have? How many vertices?

asked by joe on January 30, 2011

I'm tring to get on the right page of doing a business model for walmart tring to find the organization,commerce and occupation

asked by kim on June 17, 2010
71. ## math

a playground is 100 x 150. How do i find the scale if making a scale model on an 8.5 x 11 sheet of paper?

asked by mitzie on March 5, 2014
72. ## math

If you formed an algebraic equation to model the sentence, three times a number is equal to nine, how many variables would be in the equation? A. 1 B. 2 C. 3 D. 5

asked by Angelina on February 25, 2015

I am needed to build a seigneury model for my life in a Segneurial System project. Does anyone have any ideas on how to build one.

asked by Peyton on January 11, 2009
74. ## math

if we have pentagonal numbers 1 5 12 22 35 fit a quadratic model to find a formula for p(n) the nth pentagonal number.

asked by mike on December 17, 2008
75. ## algebra

the sum of four consecutive integers is -72. write an equation to model this situation and find the values of the four integers

asked by lucindatamakloe on August 4, 2013
76. ## social studies

Would you please show me a website that shows an actual answer to a dbq? I would like to see a model answer. I am in eigth grade. Thank you.

asked by rochelle on October 28, 2009
77. ## Geometry

A model airplane's fligth lasted nearly 38 hours. What was his miles per hour if the distance was 1,883 miles?

asked by Heather on August 25, 2011
78. ## Physics

A hose lying on the floor shoots a stream of water upward of an angle of 35 degrees with the horizontal. How high up will strike a building 7 m away if the nozzle velocity is 25m/s

asked by Francis Gabriel on February 25, 2016
79. ## Civics

Which service do both state and local governments provide? enforcing zoning regulations issuing drivers licenses maintaining a police force building schools

asked by Khaiguy0900 on January 13, 2016
80. ## POL

The process of representation through consensus building can best be characterized as (Points : 1) taking bold legislative action. partisan mutual adjustment. incrementalism. political grandstanding.

asked by Tatika on March 31, 2013
81. ## physics

A heavy concrete panel is being lifted into position in a building by means of a crane . The tension of 2.17 104 N in the supporting cable produces a torque with respect to point O. (Let L = 42.0 m.)

asked by Anonymous on December 6, 2012
82. ## American Government

Which of the following services is usually NOT run at the city level but rather at the state or federal? a. inspecting and licensing restaurants b building permits c. fire department d. drinking water I believe the answer is a

asked by Mickeyv on July 9, 2008
83. ## Math

1.)If a ping pong falls from the top of a building that is 168 feet high, how many seconds will it take the ball to hit the ground? remember, the formula for distance is D=16t2 A.)1 B.)3.2 C.)10.5 D.)16

asked by Douglas on October 13, 2015
84. ## Civics

Which of the following is an example of a concurrent power? Signing a trade treaty with a foreign country Building a new interstate highway Collecting taxes*** Determining the legal marriage age

asked by jeje on January 20, 2015
85. ## Psychics

Super man lived on Krypton where acceleration due to gravity is 23.6 m/s^2. If a woman falls from a building that is 88.3 meters tall, how long does he have to save her before she hits the ground?

asked by James on November 16, 2016
86. ## Math And Science for Young Children

Concepts can be characterized as: A. the building blocks of knowledge. B. thoughts that are incomplete until adulthood. C. ideas that young children do not yet have. D. basic to math but not to science. Is D the correct answer

asked by Tonya on January 9, 2016
87. ## math

A building is 862 feet tall. Use the function h(t) = 16t2 to approximate how long it would take an object to fall from the top. Round to the nearest tenth. Hint: h is your height.

asked by chelsea on January 23, 2012
88. ## Physics

At serve, a tennis player aims to hit the ball horizontally. What minimum speed is required for the ball to clear the 0.91 m high net about L = 15.1 m from the server if the ball is "launched" from a height of H = 2.55 m? How far from the end of the

asked by Andy on February 5, 2012
89. ## physics

A particle C can move along a slide placed in a vertical plane. Points A and B are at the same horizontal level. Determine with respect to B the point where the velocity of C is zero for the first time in the three following cases: a) C is released from A

asked by vicky on September 20, 2016
90. ## Math

A street light is mounted at the top of a 15-ft-tall pole. A man 6 ft tall walks away from the pole with a speed of 7 ft/s along a straight path. How fast is the tip of his shadow moving when he is 45 ft from the pole?

asked by AH on November 2, 2012
91. ## calculus

A street light is mounted at the top of a 15-ft-tall pole. A man 6 ft tall walks away from the pole with a speed of 7 ft/s along a straight path. How fast is the tip of his shadow moving when he is 45 ft from the pole? ft/s

asked by kela on November 9, 2012
92. ## Calculus

A street light is at the top of a 17 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 6 ft/sec along a straight path. How fast is her shadow lengthening when she is 30 ft from the base of the pole?

asked by Z32 on September 24, 2009
93. ## physics

A 0.480 kg pendulum bob passes through the lowest part of its path at a speed of 3.10 m/s. (b) When the pendulum reaches its highest point, what angle does the cable make with the vertical? The cable of the pendulum is 80 cm or .8m.

asked by kaitlyn on December 7, 2010
94. ## physics

A 9.0 x 10^-3 kg ball is attached to a 3.6 x 10^-2 mass (M) by string that passes through a hole in a horizontal frictionless surface. The ball travels in a circular path of radius 0.35 m. What is the speed of the ball? I know the answer is 3.7 m/s, but

asked by cel on November 17, 2010
95. ## physics

A 0.480 kg pendulum bob passes through the lowest part of its path at a speed of 3.10 m/s. (b) When the pendulum reaches its highest point, what angle does the cable make with the vertical? The cable of the pendulum is 80 cm or .8m.

asked by kaitlyn on December 7, 2010
96. ## physical science

A weight attached to a wire is swung in a circular path. Its speed is 12 meters/sec, and it has a centripetal acceleration of 9.0 meters/sec2. Calculate the diameter of the circle. 1.3 meters 2.6 meters 16 meters 32 meters

asked by pat on June 27, 2011
97. ## physics

A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race in circles that are parallel to the ground, and the surface is at an angle θ = 25°. For a speed of 27 m/s, at what value of the distance d should a driver

asked by Natasha on February 22, 2012
98. ## Physics

A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race in circles that are parallel to the ground, and the surface is at an angle è = 20°. For a speed of 40 m/s, at what value of the distance d should a driver

asked by Don on November 7, 2012
99. ## Physics

A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race in circles that are parallel to the ground, and the surface is at an angle = 20°. For a speed of 29 m/s, at what value of the distance d should a driver

asked by Nick on March 2, 2011
100. ## English

In "the sound of thunder," the author builds to Eckels' death by doing all of the following except.. a. describing the antigravity path b. asking Eckels' to sign a release before leaving c. Travis threatening to leave him back in prehistoric time d. having

asked by Help! on January 14, 2016