Sunday

April 19, 2015

April 19, 2015

Number of results: 52,220

**Math 214**

Not sure my reasoning is correct. Here is the question: In a Nasa rocket firing, the probability of the siccess of the first stage is 95%, of the second stage 97% and of the third stage 98%. What is the probability of success for the three stage rocket? My reasoning: There are...
*November 5, 2010 by Vanessa*

**Quadratic equation...**

Hi Can anyone help me solve the quadratic equation for the following:- The motion of a two stage rocket is stated by it height y in metres above the ground since t seconds since launch. Flies vertically Ist stage burns for 5 seconds and cuts out. 2nd stage rocket is under ...
*December 1, 2007 by Leo*

**Basic Physics**

There is a rocket on a stage connected a spring with the spring constant k(N/m). The weights of the rocket and the stage are m(kg) and M(kg), respectively. The length of the spring without the stage and rocket or free is h0(m) and it becomes shrunk to h(m) on putting the ...
*March 2, 2015 by Sarwar*

**Physics**

In January 2004, NASA landed exploration vehicles on Mars. Part of the descent consisted of the following stages: Stage A: Friction with the atmosphere reduced the speed from 19300km/h to 1600km/h in 4.0min Stage B: A parachute then opened to slow it down to 321km/h in 94s ...
*May 28, 2010 by Anonymous*

**Quadratic equations motion**

Hi, Can anyone offer any advice on solving the following, motion of two stage rocket is stated by it height y in metres above the ground since t seconds since launch. Flies vertically Ist stage burns for 5 seconds and cuts out. 2nd stage rocket is under gravity alone. modelled...
*January 11, 2008 by Lewis*

**Science**

What is the difference between a stage 2 rocket and a stage 3 rocket?
*September 23, 2008 by Maria*

**Physics**

A two-stage rocket is launched straight up from rest. It accelerates at 26.4 m/s/s for 3.92 seconds during the first stage. It accelerates at 12.3 m/s/s for 4.48 more seconds during the second stage. After second stage burnout the rocket comes under the influence of gravity ...
*September 12, 2012 by Ashley*

**TI 83 Graphing help !!!**

Hi I have spent ages trying to work out the way to program my TI-83 calculator to solve the following... I would appreciate guidance or direction to a site that can show me how to solve the following;- motion of two stage rocket is stated by it height y in metres above the ...
*November 26, 2007 by Leo*

**Ti-83 - Motion equation**

Hi I have spent ages trying to work out the way to program my TI-83 calculator to solve the following... I would appreciate guidance or direction to a site that can show me how to solve the following;- motion of two stage rocket is stated by it height y in metres above the ...
*November 26, 2007 by Leo*

**Stage**

The following is a diagram of a stage: UP STAGE STAGE RIGHT STAGE LEFT DOWN STAGE (AUDIENCE) Now, if in a book based on a play it says that there are two bedroom doors: DOOR#1 "at right" and DOOR #2 "at left", which side of the stage (stage right or stage left) should DOOR #1 ...
*August 26, 2007 by Anonymous*

**maath**

The accompanying tree diagram represents a two-stage experiment. (Let x = 0.45, y = 0.55, r = 0.65, s = 0.35, t = 0.4, and w = 0.6.) Use the diagram to find the following probabilities. (Round your answers to three decimal places.) (a) Find P(A) · P(D | A). (b) Find P(B) · P(D...
*October 17, 2012 by Diana*

**Algebra 3-4**

The first stage of a rocket burns 28 s longer than the second stage. If the total burn time for both stages is 152 s, how long does each stage burn? Describe how you found your answer. I was originally thinking to divide 152 by 2 then add 28, but I realized that wouldn't work ...
*September 12, 2014 by Samantha*

**Physics**

The Apollo spacecrafts were launched toward the moon using the Saturn rocket, the most powerful rocket available. Each rocket had five engines producing a total of 3.34 x 10 to the 7thX of force to launch the 2.77 x 10 to the 6 kg spacecraft toward the moon. (a) I need to find...
*December 3, 2013 by Lupe*

**math probablity- Respond as soon as possible **

Assume a family is planning to have three children. 1. Why do probabilities centered around this scenario represent the same probabilities as those for flipping three coins
*April 26, 2013 by Angela*

**English**

Can you check if these sentences are grammatically correct? Thank you. 1.The Elizabethan theatre was a wooden structure and had a rectangular or octagonal shape. 2.It consisted of three stages, i.e. the apron stage, the inner stage and the outer stage. 3.The apron stage ...
*September 30, 2010 by Franco*

**english**

How , what, and when would you correct mistakes/errors made during the following stages ENGAGE STAGE, STUDY STAGE, ACTIVATE STAGE
*June 26, 2010 by Rose*

**tefl**

– How, what and when would you correct mistakes/errors made during the following stages: engage stage study stage activate stage
*November 29, 2010 by rahila*

**Physics**

A toy rocket is launched upwards from rest. The rocket engine will cause the rocket to accelerate at 25 m/s^2 for 3.0 seconds. a) How fast is the rocket moving aft the end of the 3 seconds? b) What is the maximum height reached by the rocket? c) What is the total time the ...
*October 7, 2010 by Sam*

**Psychology**

Barry knew Alice was tired, but he was surprised that the argument between their three-year-old twin boys did not awaken her. She had not been asleep very long and occasionally changed her position, but did not wake. Alice is probably in: A. stage 2 sleep. B. stage 3 sleep. C...
*May 20, 2013 by Angela*

**Physics**

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 explosion the velocity of the 1240-kg upper stage is 5640 m/s in the same direction as before the ...
*October 24, 2010 by Xavier*

**Psychology**

Barry knew Alice was tired, but he was surprised that the argument between their three-year-old twin boys did not awaken her. She had not been asleep very long and occasionally changed her position, but did not wake. Alice is probably in: (Points: 5) stage 2 sleep. stage 3 ...
*May 8, 2013 by angela*

**Psychology**

Barry knew Alice was tired, but he was surprised that the argument between their three-year-old twin boys did not awaken her. She had not been asleep very long and occasionally changed her position, but did not wake. Alice is probably in: (Points: 5) stage 2 sleep. stage 3 ...
*May 10, 2013 by Angela*

**Statistics**

Suppose you conduct a study and find that the probability of having a baby boy is 60%. Now suppose three of your relatives are going to have babies. a) Build a tree diagram showing all the conditional probabilities and joint probabilities associated with the sex of the three ...
*May 10, 2008 by Danny*

**Statistics**

Suppose you conduct a study and find that the probability of having a baby boy is 60%. Now suppose three of your relatives are going to have babies. a) Build a tree diagram showing all the conditional probabilities and joint probabilities associated with the sex of the three ...
*May 11, 2008 by Danny*

**Physics**

A rocket of mass 1.0x10^3kg is being fired to a height of 5.0 x 10^3 m. The rocket engine shuts off when the rocket reaches a height of 1.0x10^3m, and the rocket coasts up to 5.0 x 10^3 m. A) What velocity must the rocket have at the 1.0x10^3 m point to enable it to reach 5.0 ...
*October 28, 2012 by Chris*

**Statistics-Matrix of Transition Probabilities**

Given the following matrix of transition probabilities, write three equations that, when solved, will give the equilibrium state values. P = large bracket with a b on top and c d directly under that, closed large bracket. Thanks.
*February 6, 2012 by Lisa*

**Probablity**

Samir had prepared the problem tests for Stages 1 to 5 of Geometry and Combinatorics for next week but forgot to label which test was for which stage. Since Samir didn't label them, the computer assigned them labels 1 through 5 randomly, with each label appearing only once. ...
*May 14, 2013 by Mathslover*

**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 explosion the velocity ...
*October 26, 2010 by Xavier*

**physics**

A small weather rocket weighs 14.7 N. The rocket is carried up by a balloon. The rocket is released from the balloon and fired, and its engine exerts an upward force of 10.2 N on the rocket. What is the acceleration of the rocket?
*August 17, 2011 by Anonymous*

**math**

A simple fractal tree Grows in stages. A each new stage, two new line segments branch out from each segment at the top of the tree. The first five stages are shown. How many line segments need to be drawn to create stage 20? Stage 1- 1 Stage 2 - 3 Stage 3 - 7 Stage 4 -15 Stage...
*January 10, 2012 by Annie*

**health**

Write a 1,400- to 1,750-word paper on the complete process of how a topic becomes a policy. In your paper, include the following information: • Formulation stage • Legislative stage • Implementation stage
*May 28, 2012 by Anonymous*

**math: probabilities**

Three regular six-sided dice are tossed in succession. What is the probability that all three outcomes are different? Choose from the following Answers: 5/9 25/36 2/3 1/192 How do I even begin with this problem?
*June 2, 2010 by M.A.*

**fluid mechanics**

The ares rocket has a liquid oxygen tank that sits on top of the core stage. The turbopump inlet for the engines on the core stage must have a certain pressure to operate correctly. The engine designer has asked you to calculate the range of pressures he must account for....
*December 2, 2008 by memyself*

**Scoiolgy**

Tony is five years of age. He loves to dress up like the Lone Ranger and pretend to help people in need. According to Mead's theory, what stage best describes Tony's behavior? A. The imitation stage B. The game stage C. The play stage D. The fantasy stage D
*April 27, 2014 by Angela*

**Physics**

A rocket is fired vertically with an upward acceleration of 30 m/s2. After 20 s, the engine shuts off and the rocket then continues rising (while in free-fall). The rocket eventually stops rising and then falls back to the ground. (a) What is the highest point the rocket ...
*September 13, 2010 by Jackie*

**Physics**

In January 2004, NASA landed exploration vehicles on Mars. Part of the descent consisted of the following stages: Stage A: Friction with the atmosphere reduced the speed from 19300 to 1600 in 4.0 . Stage B: A parachute then opened to slow it down to 321 in 94 . Stage C: Retro ...
*May 28, 2010 by Anonymous*

**human growth and developmnet**

Delinquent and predelinquent teenagers tend to be "stuck " in ....... of Kohlberg theory of moral development.In this stage,delinquent teenagers are deterred from misconduct only by the threat of punishment and fear of getting caught A)STAGE 4 B)STAGE 3 C)STAGE 2 D)STAGE 1 IS ...
*May 12, 2010 by vedrana*

**English**

I left out three sentences. Thank you very much. 1) There are several reasons why the murder takes place off-stage. First of all representing a regicide on stage was regarded as an offence towards the figure of the king. 2) Second, the open structure of the Elizabethan stage ...
*October 1, 2011 by Henry2*

**Physics**

A two-stage rocket moves in space at a constant velocity of 5100 m/s. The two stages are then separated by a small explosive charge placed between them. Immediately after the explosion the velocity of the 1250-kg upper stage is 5520 m/s in the same direction as before the ...
*October 26, 2010 by Velocityof two stage rocket*

**math**

a model rocket is projected straight upward from the ground level. It is fired with an initial velocity of 192 ft/s. How high is the rocket after 10 seconds? When is the rocket at a height of 432 feet? What is the maximum height of the rocket? When will the rocket hit the ground?
*April 9, 2015 by Rick*

**Psychology**

Barry knew Alice was tired, but he was surprised that the argument between their three-year-old twin boys did not awaken her. She had not been asleep very long and occasionally changed her position, but did not wake. Alice is probably in: 1.stage 2 sleep. 2.stage 3 sleep. 3....
*June 5, 2011 by Tobbo*

**Physics**

A rocket was launched and it now has an acceleration of 3m pers second squared upwards.the mass of the rocket is 5000kg.calculate the net force acting on the rocket and the upthrust exerted by the exhaust gases on the rocket.
*February 4, 2013 by Tshephiso*

**physiccs**

a rocket that has consumed all of its fuel continues to move upward slowed mostly by the force of gravity. If the rocket's mass is 75.0 g and it takes 1.2 sec for the rocket to stop, what is the change in the rocket's momentum? what is the rockets stopping distance?
*November 2, 2009 by arriell*

**math**

Hello, Here is a question with something i've never heard of. These are the first two stages of a fractal known as the Sierpinski carpet. The carpet begins with a square (stage 1). The square is cut into 9 congruent squares and the middle square is removed (stage 2). Draw ...
*February 10, 2010 by JOE*

**physics**

A small weather rocket weighs 15.5 N. The rocket is carried up by the balloon. The rocket is released from the balloon and fired, but its engine exerts an upward force of 11.0 N. What is the acceleration of the rocket?
*October 3, 2010 by devon*

**English**

I urgently need to check these sentences. I did the corrections myself. I just want to know if my corrections are OK. 1) A smaller stage, called inner stage, was hidden by a curtain at the bottom of the main stage and was used, for example, for the Juliet's tomb scene. A ...
*October 7, 2011 by Henry2*

**Physics**

You launch a model rocket up into the sky. Right after launch the rocket is accelerating upwards at 10~m/s^2. What is the magnitude of the net force in Newtons on the rocket if the rocket has a mass of 0.1 kg?
*March 7, 2013 by John*

**physics**

You launch a model rocket up into the sky. Right after launch the rocket is accelerating upwards at 10 m/s2. What is the magnitude of the net force in Newtons on the rocket if the rocket has a mass of 0.1 kg?
*March 8, 2013 by Anonymous*

**Physics**

You launch a model rocket up into the sky. Right after launch the rocket is accelerating upwards at 10~m/s^2. What is the magnitude of the net force in Newtons on the rocket if the rocket has a mass of 0.1 kg?
*March 10, 2013 by John*

**physics**

You launch a model rocket up into the sky. Right after launch the rocket is accelerating upwards at 10 m/s2. What is the magnitude of the net force in Newtons on the rocket if the rocket has a mass of 0.1 kg?
*March 10, 2013 by Anonymous*

**physics**

You launch a model rocket up into the sky. Right after launch the rocket is accelerating upwards at 10 m/s^2. What is the magnitude of the net force in Newtons on the rocket if the rocket has a mass of 0.1 kg?
*March 12, 2013 by Jacobb*

**Physics**

You launch a model rocket up into the sky. Right after launch the rocket is accelerating upwards at 10~m/s^2. What is the magnitude of the net force in Newtons on the rocket if the rocket has a mass of 0.1 kg?
*March 12, 2013 by John*

**Science**

You launch a model rocket up into the sky. Right after launch the rocket is accelerating upwards at 10 m/s2. What is the magnitude of the net force in Newtons on the rocket if the rocket has a mass of 0.1 kg?
*June 2, 2013 by Elouisa*

**science**

Which of the following statements is FALSE? a) The first stage of a thunderstorm's development is the cumulus stage. b) Warm air is less dense than cold air c) The cumulus stage of a thunderstorm usually features heavy rains.
*August 26, 2010 by carl bennett*

**physic**

A rocket accelerates straight up from rest for 20 seconds with an acceleration of 8 m/s2. After 20 seconds the rocket motor shuts off and the rocket continues to coast upwards. How high does the rocket go in meters?
*June 11, 2013 by O.albania*

**physics**

A stationary rocket is launched vertically upward. After 4s, the rocket's fuel is used up and it is 225.6 m above the ground. At this instant the velocity of the rocket is 112,8 m/s. Then the rocket undergoes free fall. Ignore the effect of the air friction.Assume that g does ...
*March 8, 2014 by clement*

**trig**

A rocket tracking station has two telescopes A and B placed 1.9 miles apart. The telescopes lock onto a rocket and transmit their anlges of elevation to a computer after a rocket launch. what is the distance to the rocket
*April 14, 2011 by mikey*

**trig**

A rocket tracking station has two telescopes A and B placed 1.9 miles apart. The telescopes lock onto a rocket and transmit their anlges of elevation to a computer after a rocket launch. what is the distance to the rocket
*April 14, 2011 by mikey*

**physic**

Consider a rocket in space that ejects burned fuel at a speed of 1.5 km/s with respect to the rocket. The rocket burns 9 % of its mass in 310 s (assume the burn rate is constant). (a) What is the speed of the rocket after a burn time of 155.0 s? (suppose that the rocket starts...
*December 6, 2013 by juanpro*

**Physics**

Consider a rocket in space that ejects burned fuel at a speed of vex= 2.0 km/s with respect to the rocket. The rocket burns 8 % of its mass in 300 s (assume the burn rate is constant). (a) What is the speed v of the rocket after a burn time of 150.0 s? (suppose that the rocket...
*December 6, 2013 by KS*

**PHYSICS(elena)**

Consider a rocket in space that ejects burned fuel at a speed of vex= 1.5 km/s with respect to the rocket. The rocket burns 8 % of its mass in 280 s (assume the burn rate is constant). (a) What is the speed v of the rocket after a burn time of 140.0 s? (suppose that the rocket...
*December 8, 2013 by Anonymous*

**physics**

You launch a model rocket up into the sky. Right after launch the rocket is accelerating upwards at 10 m/s^2. What is the magnitude of the net force in Newtons on the rocket if the rocket has a mass of 0.1 kg? Please give your answer with solution .
*June 24, 2013 by anonymous*

**PHYSICS IMP PLS**

Consider a rocket in space that ejects burned fuel at a speed of v_ex= 2.0 km/s with respect to the rocket. The rocket burns 10 % of its mass in 290 s (assume the burn rate is constant). (a) What is the speed of the rocket after a burn time of 145.0 s? (suppose that the rocket...
*December 8, 2013 by ROMA*

**Physics**

A small rocket weighs 14.7 newtons. The rocket is fired from a high platform but it's engine fails to burn properly. The rocket gains total upward force if only 10.2 newtons. At what rate and in what direction is the rocket accelerated?
*February 19, 2014 by Alex*

**phyicis**

Homer Hickham and his buddies launched model rockets in the late 1950's when the US was trying to get a rocket into space. If homer launches a rocket from rest and its engine delivers a constance acceleration of 8.2 m/s^2 for 5.0seconds after which the fuel is used up by the ...
*October 29, 2012 by Matt*

**Classical Mechanics Physics**

Consider a rocket in space that ejects burned fuel at a speed of vex= 1.5 km/s with respect to the rocket. The rocket burns 6 % of its mass in 310 s (assume the burn rate is constant). (a) What is the speed v of the rocket after a burn time of 155.0 s? (suppose that the rocket...
*December 6, 2013 by Anonymous*

**Physics**

With the engines off, a spaceship is coasting at a velocity of +210 m/s through outer space. It fires a rocket straight ahead at an enemy vessel. The mass of the rocket is 1350 kg, and the mass of the spaceship (not including the rocket) is 2.5 106 kg. The firing of the rocket...
*February 25, 2008 by Vaughn*

**English**

For a Raisin in the Sun, I have to draw and label a diagram of the stage. On the page, typed are: up stage, down stage, audience, stage right, and stage left. I don't get it, like what am I supposed to do, draw the kitchen, the couch in the living room, or what? Can someone ...
*August 6, 2007 by Anonymous*

**physics**

A two staged rocket moves in space at a constant velocity of 4900m/s. The two stages are then separated by a small explosive charge between them. Immediately after the explosion the velocity of the 1200kg upper stage is 5700m/s in the same direction as before the explosion. ...
*March 12, 2012 by Natasha*

**English**

Is rocket the simple subject for the following sentence. The Saturn rocket made travel to the moon possible.
*June 14, 2013 by Cherokee*

**Human Geography-Help!**

Where is the largest concentration of people? East Asia If the physiological density is higher than the arithmetic density what can you infer? There's too many people for resources. What stage of the demographic transition has a rapidly delcining crude death rate? stage 2 ...
*September 30, 2010 by Kylie*

**physics**

A rocket is launched straight up with a constant acceleration. Three seconds after lift off, a small part of the rocket falls off the side. The small part hits the ground 7 seconds later. Ignoring air resistance, what was the acceleration of the rocket?
*October 3, 2011 by anonymous*

**Physics I**

A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 61.2° above the horizontal. The rocket is fired toward an 11.0 m high wall, which is located 20.5 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*February 7, 2010 by tiffany*

**physics**

A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 57.6¡ã above the horizontal. The rocket is fired toward an 11.0 m high wall, which is located 25.5 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*October 24, 2010 by myx*

**physics**

A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 64.7¡ã above the horizontal. The rocket is fired toward an 11.0 m high wall, which is located 25.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*October 24, 2010 by hy*

**physics**

A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 59.7° above the horizontal. The rocket is fired toward an 11.0 m high wall, which is located 28.5 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*January 18, 2012 by Kelly*

**physics**

A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 68.0° above the horizontal. The rocket is fired toward an 11.0 m high wall, which is located 26.5 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*January 19, 2012 by Anonymous*

**physics**

A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 68.6° above the horizontal. The rocket is fired toward an 11.0 m high wall, which is located 26.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*February 3, 2012 by Cody*

**physics**

A rocket is fired at a speed of 70.0 m/s from ground level, at an angle of 40.0 ° above the horizontal. The rocket is fired toward an 14.0-m high wall, which is located 21.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*October 9, 2012 by cayla*

**physics**

A rocket is fired at a speed of 91.0 m/s from ground level, at an angle of 49.0 ° above the horizontal. The rocket is fired toward an 21.4-m high wall, which is located 25.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*February 6, 2013 by louis*

**physics**

A rocket is fired at a speed of 91.0 m/s from ground level, at an angle of 49.0 ° above the horizontal. The rocket is fired toward an 21.4-m high wall, which is located 25.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*February 7, 2013 by louis AAAAAAAAAAAAAAAAAAAA*

**physics**

A rocket is fired at a speed of 54.0 m/s from ground level, at an angle of 63.0 ° above the horizontal. The rocket is fired toward an 52.8-m high wall, which is located 37.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*June 23, 2013 by louis aaaa*

**Physics**

A rocket is fired at a speed of 50.0 m/s from ground level, at an angle of 46.0 ° above the horizontal. The rocket is fired toward an 18.7-m high wall, which is located 23.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*September 7, 2013 by WR*

**Physics**

A rocket is fired at a speed of 96.0 m/s from ground level, at an angle of 35.0 ° above the horizontal. The rocket is fired toward an 15.2-m high wall, which is located 32.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*September 15, 2013 by Katy*

**physics**

A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 60.0º above the horizontal. The rocket is fired toward an 15.0 m high wall, which is located 27.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*September 19, 2013 by paul*

**Physics**

I have to design a procedure which allows me to calculate the applied rocket thrust force of a stomp rocket. The only materials I am allowed are stop watches, rulers, measuring tape, protractors and the stomp rocket. Basically it all has to be done mathimatically. I so far ...
*July 22, 2010 by Mackenzie*

**physics**

Rockets A and B are fired straight upward from rest. Rocket A is launched first and accelerates at 11.2 m/s2. Rocket B is launched 2.10 s after Rocket A and B accelerates at 14.6 m/s2. Solve for the moment in time when the rockets are separated by 484 m. a) how long after ...
*October 17, 2010 by Haley*

**psycology**

Do an ESSAY Using Kohlberg's three levels and six stages of moral reasoning, create a character that passes through each stage and explain how she/he responds to moral dilemmas present at each stage.
*December 11, 2010 by robert*

**physics**

The engine of a toy rocket supplies an average acceleration of 38.0 m/s/s to the rocket for an interval of 0.80 s. A.)If the toy roocket is launched vertically, how high does it rise in this interval? B.) How fast is the rocket moving at the end of 0.80 s? C.) What altitude ...
*January 19, 2010 by Kendra*

**physics**

A test rocket is launched vertically from ground level (y = 0 m), at time t = 0.0 s. The rocket engine provides constant upward acceleration during the burn phase. At the instant of engine burnout, the rocket has risen to 49 m and acquired a velocity of What is the maximum ...
*September 26, 2013 by D*

**Physics**

The solid fuel of a 300.kg rocket travelling at 1.64x104 km/h is ignited to correct the rocket trajectory in mid-flight to Mars. 10.00 kg of fuel is burnt in 15.00 s. If the exhaust velocity of the fuel, relative to the rocket, is 2.90x103 km/h, what is the acceleration of the...
*October 26, 2012 by Jeff*

**physics**

a mass of gas emitted from the rear of toy rocket is initially 0.2kg/s. if the speed of the gas relative to the rocket is 40m/s and the mass of the rocket is 4 kg what is the initial acceleration of the rocket
*May 21, 2010 by onda*

**physics**

A rocket is fired at a speed of 70.0 m/s from ground level, at an angle of 40.0 ° above the horizontal. The rocket is fired toward an 14.0-m high wall, which is located 21.0 m away. The rocket attains its launch speed in a negligibly short period of time, after which its ...
*October 9, 2012 by Anonymous*

**literature**

In the play, A Raisin in the Sun, there are three doors- two bedroom doors, which belong opposite each other on stages left and right, and a door leading into and out of the Youngers' living quarters in the apartment. Where should this door go?(the door leading into and out of...
*August 27, 2007 by brie*

**English**

I urgently need you to check if all my corrections are OK. Thank you very much in advance. 1) The Elizabethan thetre was made up of three different galleries and three kinds of stages (it was made up of three stages surrounded by three tiers of galleries). 2) The firstly was ...
*October 10, 2011 by Henry*

**physics**

You have designed a rocket to be used to sample the local atmosphere for pollution. It is fired vertically with a constant upward acceleration of 19 m/s2. After 23 s, the engine shuts off and the rocket continues rising (in freefall) for a while. (Neglect any effects due to ...
*September 19, 2010 by Anonymous*

**math**

Claire wants to determine how brightly to illuminate her stage. stage width (in metres) x stage length (in metres) x 0.14 = total watts for stage If her stage is 7.25 metros wide and 11.5 metres long, a) calculate the exact number of watts needid to illuminate the stage b) ...
*May 3, 2014 by Lucas*

**Math**

Claire wants to determine how brightly to illuminate her stage. stage width (in metres) x stage length (in metres) x 0.14 = total watts for stage If her stage is 7.25 metros wide and 11.5 metres long, a) calculate the exact number of watts needid to illuminate the stage b) ...
*May 4, 2014 by Lucas*

**statistics**

binomial probabilities one in four adults is currently on a diet. Find the probability that the number who say they are currently on a dies is (a)exactly three, (b)at least three, and (c) more than three
*October 2, 2014 by isabella*

**child psychology in general **

which one of the following words or phrases is most closely related to piagets theory? a.psychoanalytical b.oedipal c.programmed learning d. stage by stage my answer is d
*July 31, 2013 by susue*