Saturday

February 25, 2017
**geometry math help**

"the inside of a carton is measured and is found to be width of 40cm, length 60cm and depth 30 cm. it is to be packed 2 layers deep with cylindrical tins that have a radius of 5cm and height of 15cm (outside measurements)." a) show that 48 tins can be packed into the carton b...

*Monday, May 26, 2014 by Kiirsty*

**Physics**

20.00 cm of space is available. How long a piece of brass at 20°C can be put there and still fit at 200°C? Brass has a linear expansion coefficient of 19 × 10^-6/C°. 19.93 cm 19.69 cm 19.50 cm 19.09 cm

*Friday, May 23, 2014 by tira*

**Chemistry**

The mechanism for the reaction described by No2+CO--->CO2+NO is suggested to be (1)2NO2--->NO3+NO (2)NO3+CO--->NO2+CO2 Assuming that [NO3] is governed by steady-state conditions, derive the rate law for the production of CO2(g) and enter it in the space below. rate of...

*Friday, May 23, 2014 by BOB*

**Physics -- check answers please**

The earth's magnetic field a) is slightly off centre compared to the Earth's rotational axis of rotation b) has its magnetic south pole at the geographic north pole c) attracts the north end of the compass needle to the geographic north pole d) all of the above Would it be d? ...

*Wednesday, May 21, 2014 by Liz*

**Physics Please help2**

Two small insulating spheres with radius 7.00×10^−2m are separated by a large center-to-center distance of 0.565m . One sphere is negatively charged, with net charge -2.05μC , and the other sphere is positively charged, with net charge 4.10μC . The charge is ...

*Wednesday, May 21, 2014 by Josh*

**Physics**

The earth's magnetic field a) is slightly off centre compared to the Earth's rotational axis of rotation b) has its magnetic south pole at the geographic north pole c) attracts the north end of the compass needle to the geographic north pole d) all of the above 2. A magnetic ...

*Tuesday, May 20, 2014 by Liz*

**physics**

Why do the passengers in high-altitude jet planes feel the sensation of weight while passengers in the International Space Station do not?

*Monday, May 19, 2014 by Peg*

**Math**

5. Find the surface area of the cylinder to the nearest whole number. (1 point)1,659 in.2 898 in.2 5,862 in.2 2,959 in.2 6. Find the surface area of the pyramid shown to the nearest whole number. (1 point)1,540 m2 770 m2 396 m2 749 m2 7. Find the surface area of a conical ...

*Saturday, May 17, 2014 by Anonymous*

**Physics**

The space shuttle typically orbits 400 km above the earth's surface. The earth has a mass of 5.98 × 1024 kg and a radius of 6,380 km. A) How much would a 2000 kg part for the space station weigh when it has been lifted to that orbit in the shuttle's cargo bay? B) What is the ...

*Tuesday, May 13, 2014 by Space Shuttle-Q1*

**Science: Please check answer**

2. Once your rocket reaches space, the captain adjusts the speed. Your captain goes from 24,000 km/hr to 17,000 km/hr over 90 seconds. What is your acceleration? Beginning speed= 17,000km/hr Ending speed= 24,000 km/hr Time it took= 90/sec 17000-24000= -7000/90= -77.778km/hr ...

*Monday, May 12, 2014 by Cassie*

**Astronomy**

Imagine that you have found an object out in space. When you use the inverse square law to compute its luminosity, you get a ridiculously large value. You therefore suspect that relativistic beaming is at work - the radiation is coming from a jet traveling at speed v directly...

*Sunday, May 11, 2014 by qwerty*

**(1-13) Chemistry - Science**

Which of the following effects will make the ratio (PV) / (nRT) less than 1 for a real gas? a) The gas molecules are large enough to occupy a substantial amount of space. b) A large number of molecules have speeds greater than the average speed. c) The gas molecules have a ...

*Saturday, May 10, 2014 by Ana*

**math**

A cow is attached to a rope 10 feet long in a pasture bordered by two fence( more than 10 feet long) meeting at an angle of 60 degree. What is the area of the space in which the cow is grazing? a. 20 pi b. 5 pi /3 c. 20 pi /3 d. 50 pi /3 e. 100 pi please answer and explain

*Friday, May 9, 2014 by thomas*

**science**

gravitational force decreases with distance. what does this mean for a space traveler who leaves earth in a spaceship?

*Wednesday, May 7, 2014 by kev*

**Math**

When an engineer inspects a pipeline she notices a high water mark. How much space is there between the high water level and the top of the pipe, to the nearest hundredth. The diameter of the pipe is 1.2m and the horiztonal distance across the surface of the water is 80 cm.

*Tuesday, May 6, 2014 by Summer*

**science**

1. Use the image below to answer the following question. At which position does the diver have the most potential energy? (1 point) 1 2 3 4 2. How does the gravitational potential energy of Coaster A compare with that of Coaster B? (1 point) The gravitational ...

*Tuesday, May 6, 2014 by Lisa*

**physics**

You are a sucker for scenic overlooks, so you want to build a house overhanging a cliff. The way you do this is by taking a 20,000 N concrete beam and hang it over the edge of the cliff with one edge at the cliff ledge and the other edge 700m away in free space. You plan to ...

*Friday, May 2, 2014 by Michelle*

**math (5)**

The monthly profit (in dollars) of Bond and Barker Department Store depends on the level of inventory x (in thousands of dollars) and the floor space y (in thousands of square feet) available for display of the merchandise, as given by the equation below. P(x, y) = -0.016x^2...

*Thursday, May 1, 2014 by Mia*

**Space Exploration**

Give two reasons why observatories are still being built on Earth instead of launching more space telescopes? I I'm assuming one reason is the cost but can't find another reason .

*Thursday, May 1, 2014 by Cherie*

**math (5)**

The monthly profit (in dollars) of Bond and Barker Department Store depends on the level of inventory x (in thousands of dollars) and the floor space y (in thousands of square feet) available for display of the merchandise, as given by the equation below. P(x, y) = -0.016x^2...

*Thursday, May 1, 2014 by Mia*

**science**

is that electric current occupies space?

*Thursday, May 1, 2014 by sonia*

**math (5)**

The monthly profit (in dollars) of Bond and Barker Department Store depends on the level of inventory x (in thousands of dollars) and the floor space y (in thousands of square feet) available for display of the merchandise, as given by the equation below. P(x, y) = -0.016x^2...

*Wednesday, April 30, 2014 by Mia*

**Math Help 2 Questions Urgent!**

1. The Pythagorean Theorem can be used to find distances between two points on a grid. But what about finding distances in three-dimensional space? Consider a rectangular box, which has length l, width w, and height h. What is the distance from one corner to the opposite ...

*Wednesday, April 30, 2014 by Josh*

**Math Help - 2 Questions**

1. The Pythagorean Theorem can be used to find distances between two points on a grid. But what about finding distances in three-dimensional space? Consider a rectangular box, which has length l, width w, and height h. What is the distance from one corner to the opposite ...

*Wednesday, April 30, 2014 by Josh*

**Astronomy**

The luminosity of the Sun is 4*10^33 erg/s, and its radius is 7*10^10 cm. What is the Sun's effective temperature? Please enter your answer in units of Kelvin. What is the Sun's effective temperature? Please enter your answer in units of Kelvin. - unanswered What is the flux ...

*Tuesday, April 29, 2014 by qwerty*

**Math -Help**

you have a space in your garden for 100 small flowering bulbs. Crocus bulbs cost $0.45 each, and daffodil bulbs cost $0.85 each. Your budget allows you to spend $55.80 on bulbs. How many crocus bulbs and how many daffodil bulbs can you buy?

*Tuesday, April 29, 2014 by Sarah*

**Space Exploration**

List three subsystems of a SARSAT satellite and tell what the function of eCh subsystem is. Please help I can't seem to find them.

*Tuesday, April 29, 2014 by Cherie*

**CALCULUS**

two birds are flying along in 3-space. At time t, the first bird is at the point (x,y,z) on the line

*Sunday, April 27, 2014 by AIRA*

**Deepa**

A bus service carries 10 000 people daily between Ajax and Unoin Station, and the company has space to serve up to 15 000 people per day. The cost to ride the bus is 20$. Market research shows that if the fare increases by $0.50, 200 fewer people will ride the bus. What fare ...

*Saturday, April 26, 2014 by Calculus*

**Chemistry**

The mechanism for the reaction described by NO2(g) + CO(g) ---> CO2(g) + NO (g) is suggested to be (1) 2NO2(g) --->(k1) NO3(g) + NO (g) (2) NO3(g) +CO(g) --->(k2) NO2(g) + CO2(g) Assuming that [NO3] is governed by steady-state conditions, derive the rate law for the ...

*Thursday, April 24, 2014 by Mia*

**Chemistry**

The mechanism for the reaction described by 2N2O5(g) ---> 4NO2(g) + O2(g) is suggested to be (1) N2O5(g) (k1)--->(K-1) NO2(g) + NO3(g) (2) NO2(g) + NO3(g) --->(K2) NO2(g) + O2(g) + NO(g) (3) NO(g) + N2O5(g) --->(K3) 3NO2(g) Assuming that [NO3] is governed by steady...

*Thursday, April 24, 2014 by Mia*

**English**

How do I make this more positive? Dear renter: Effective march 1, the rent for your parking space will go up $10 a month. However, our parking lot is still not the most expensive in town. Many of you have asked us to provide better snow and ice removal and to post signs saying...

*Tuesday, April 22, 2014 by Maci*

**physics**

he sun radiates like a perfect blackbody with an emissivity of exactly 1. (a) Calculate the surface temperature of the sun, given it is a sphere with a 7.00 ✕ 108 m radius that radiates 3.80 ✕ 1026 W into 3 K space. K (b) How much power does the sun radiate per ...

*Monday, April 21, 2014 by epi*

**English Help Please!!! Check!!**

Memo Edit Today, Rite Properties needs to send a memo to the residents of The Plaza, an apartment complex they own. Review the memo thoroughly, then edit it for writing style (cohesion, concision, clarity, diction, and variety) AND professional tone and voice. (Think about the...

*Monday, April 21, 2014 by Anonymous*

**math**

The garage you work for as an auto mechanic measures 230 ft. by 150 ft and handles 69 cars. Using the existing garage as a model, how much space would you plan to have in your garage?

*Saturday, April 19, 2014 by justin*

**geometry**

The radius of the earth is approximately 6371 km.If the international space station (ISS) is orbiting 353 km above the earth, find the distance from the ISS to the horizon(x)

*Wednesday, April 16, 2014 by ann*

**math**

You require space to service 65 vehicles at any one time. Will a facility measuring 145 ft. by 130 ft. be adequate if each vehicle requires 300 sq.ft.?

*Tuesday, April 15, 2014 by justin*

**justin**

You require space to service 65 vehicles at any one time. Will a facility measuring 145 ft. by 130 ft. be adequate if each vehicle requires 300 sq.ft.?

*Tuesday, April 15, 2014 by Anonymous*

**science**

why does an person in space craft orbiting earth experiance a feeling of weightless?

*Tuesday, April 15, 2014 by zacaby*

**Planets- I Love Space!**

why the outer planets did not lose the lighter gases in their atmospheres.?

*Monday, April 14, 2014 by Chloé*

**Physics**

A space probe is traveling in outer space with a momentum that has a magnitude of 7.84 x 107 kg·m/s. A retrorocket is fired to slow down the probe. It applies a force to the probe that has a magnitude of 1.29 x 106 N and a direction opposite to the probe's motion. It fires ...

*Friday, April 11, 2014 by Anonymous*

**Physics**

A space probe is traveling in outer space with a momentum that has a magnitude of 7.84 x 107 kg·m/s. A retrorocket is fired to slow down the probe. It applies a force to the probe that has a magnitude of 1.29 x 106 N and a direction opposite to the probe's motion. It fires ...

*Thursday, April 10, 2014 by Elle*

**math**

A large bicycle retailer collects data on the number of bicycles in each store compared to floor space of each store. The data is given in the table below. Number of Bicycles 60 56 208 52 70 55 Floor Space (sq ft) 1400 1140 3250 1100 1500 1280 a) Determine the equation of the ...

*Thursday, April 10, 2014 by kelley*

**College Physics**

An astronaut of mass 84.0 kg is taking a space walk to work on the International Space Station. Because of a malfunction with the booster rockets on his spacesuit, he finds himself drifting away from the station with a constant speed of 0.570 m/s. With the booster rockets no ...

*Thursday, April 10, 2014 by Christian*

**Sentence Completion**

Demonstrate your understanding of the Word Bank words by completing each sentence in the space provided. Word Bank: aerodynamics; hydraulic; pursue; improbable; derides; legacy; riveting; ruminative; adept; compelling 1. Aerodynamics affect flight performance, so airplanes ...

*Thursday, April 10, 2014 by Victoria*

**math**

how do you type up a spaceship in space

*Wednesday, April 9, 2014 by Anonymous*

**Physics (Help Please)**

An astronaut of mass 84.0 kg is taking a space walk to work on the International Space Station. Because of a malfunction with the booster rockets on his spacesuit, he finds himself drifting away from the station with a constant speed of 0.570 m/s. With the booster rockets no ...

*Tuesday, April 8, 2014 by Christian*

**Physics**

An astronaut of mass 84.0 kg is taking a space walk to work on the International Space Station. Because of a malfunction with the booster rockets on his spacesuit, he finds himself drifting away from the station with a constant speed of 0.570 m/s. With the booster rockets no ...

*Tuesday, April 8, 2014 by Jason*

**Sentence Completion**

Demonstrate your understanding of the Word Bank words by completing each sentence in the space below. Word Bank: obsessed, aesthetic, arbitrary 1. Because Scott McCloud really was obsessed with comics, he probably knew all there was to know about them. 2. McCloud's argument is...

*Monday, April 7, 2014 by Victoria*

**math**

a storage room measures 11.35 feet in length by 9.5 feet in width by 8.3 feet in height. it contains a box which is 4.25 feet in length 6.5 feet in width and 4.0 feet in height.how many cubic feet of storage space are left in the room rounded to the nearest cubic foot

*Monday, April 7, 2014 by erika*

**Algebra II -Please help**

Assign each letter and a blank space to a number as shown by the alphabet table. 0=_ 1=A 2=B 3=C 4=D 5=E 6=F 7=G 8=H 9=I 10=J 11=K 12=L 13=M 14=N 15=O 16=P 17=Q 18=R 19=S 20=T 21=U 22=V 23=W 24=X 25=Y 26=Z use matrix [1 -2] -3 7 and encode the phrase "One Question to go" o=15 ...

*Monday, April 7, 2014 by Cassie*

**math-urgent**

Sample space ={1,2,3,4,5} p(1)=0.1, p(2)=0.2 and p(3)=p(4)=0.05. Assume that A={1,3,5} and B={2,3,4}. Find p(5). Find p(A^c). I need help with this question. It is a probability question. please help.

*Monday, April 7, 2014 by Temmick*

**physics**

A cosmic-ray proton in interstellar space has an energy of 19.5 MeV and executes a circular orbit having a radius equal to that of Mars' orbit around the Sun (2.28 1011 m). What is the magnetic field in that region of space?

*Sunday, April 6, 2014 by Anonymous*

**math**

A rental agent is renting a space for $7.50 a square foot. If you require a space 36 ft. by 16 ft., what will be the rental on that space?

*Saturday, April 5, 2014 by Anonymous*

**Algebra 2**

1.) According to the American College Test (ACT), results from the 2004 ACT testing found that students had a mean reading score of 21.3 and a standard deviation of 6.0. The scores are normally distributed. A student scores a 35. What percent of the data would contain that ...

*Friday, April 4, 2014 by Lanie*

**Math**

Each square represents 625 square feet, each line segment represents 25 feet. A galapagos tortoise must use 550 feet of fencing to enclose a space of 15,000.

*Friday, April 4, 2014 by Anna*

**physics**

A crate with a mass of 80 kg glides through a space station with a speed of 2.5 m/s. An astronaut speeds it up by pushing on it from behind with a force of 210 N, continually pushing with this force through a distance of 8 m. The astronaut moves around to the front of the ...

*Thursday, April 3, 2014 by Anonymous*

**physics**

Astronauts in space cannot weigh themselves by standing on a bathroom scale. Instead, they determine their mass by oscillating on a large spring. Supppose an astronaut attaches one end of a large spring to her belt and the other end to a hook on the wall of the space capsule. ...

*Monday, March 31, 2014 by Hannah*

**Math**

A glass box shaped like a rectangular prism has with 7 inches length 9 inches height 12 inches is being shipped in a larger box with whipped 10 inches length 10 inches in height 15 inches the space between the glass box on the shipping box will with styrofoam peanuts how many ...

*Sunday, March 30, 2014 by Kahoho*

**Chemistry**

The measured potential of the following cell was 0.1776 volts: Pb|Pb2+(??M)||Pb2+(1.0M)|Pb Calculate the electrode potential of the unknown half-cell(anode). Not sure how to approach this, considering the molarity is unknown. There isn't a lot of space on the page for the ...

*Thursday, March 27, 2014 by Alex*

**Chemistry**

How would you exactly start the first problem? My thermodynamic skills is a bit rusty. I am assuming I have to use ΔH°f under the given reaction..? But then..we barely covered ΔG° in class. Am I to use this equation, ΔG° = ΔH° - T ΔS°? Umm..can ...

*Thursday, March 27, 2014 by Airin*

**Physical science**

An astronaut on a space walk bumps the shuttle and starts moving away at a velocity of 0.02m/s. The astronaut's mass is 100kg. He takes a 1kg "safety weight" and shoves it away in exactly the direction of his motion at a speed of 6m/s. at what speed does the astronaut move ...

*Wednesday, March 26, 2014 by Troy Stuart*

**Literature/Social Studies (Ms. Sue!)**

The New Frontier" by John F. Kennedy. 1. What ideas does Kennedy express by quoting William Brandford? A: By quoting William Bradford, Kennedy expresses the idea that, despite great difficulties, man can overcome anything through their will and determination. 2. What reasons ...

*Tuesday, March 25, 2014 by Anonymous*

**Literature/Social Studies**

"The New Frontier" by John F. Kennedy. 1. What ideas does Kennedy express by quoting William Brandford? A: ? 2. What reasons does Kennedy offer for going to the moon? A: Kennedy offers reasons such as the task of going to the moon being difficult, the goal serving to organize ...

*Tuesday, March 25, 2014 by Anonymous*

**HELP PRE-CALC ASAP**

An experiment consists of selecting a number at random between 0 and 9 inclusive, and a letter of the English alphabet. What is the size of the sample space of this experiment? A) 35 B) 36 C) 52 D) 234 E) 260

*Monday, March 24, 2014 by Anonymous*

**Math**

An architect has allocated a rectangular space of 465ft^2 for square dining room and a 16ft wide kitchen. Find both the width of the square dining room and the length of the entire rectangular space.

*Friday, March 21, 2014 by Pam*

**math**

The area of a rectangular space is 128 square feet. a. Find all the possible pairs of whole number dimensions in feet. b. Explain which pair allows enough space for a car to park. c. If the length of the space is x feet, how would you describ e the width using the area and the...

*Thursday, March 20, 2014 by Anonymous*

**Math**

An architect has allocated a rectanglular space of 646ft^2 for a square dining room and a 15ft wide kitchen. Find both the width of the square dining room and the length of the entire rectangular space.

*Thursday, March 20, 2014 by Pam*

**statistic**

6. Which of the following represents the sample space for rolling a six-sided die and tossing a coin? (1 point) {1H, 2H, 3H, 4H, 5H, 6H, 1T, 2T, 3T, 4T, 5T, 6T} *{1, 2, 3, 4, 5, 6} {H, T} {1, 2, 3, 4, 5, 6, H, T}

*Thursday, March 20, 2014 by TIKIMA*

****************HELP STATISTIC PLEASE***************

NEED SOMEONE TO RECHECK ANS *****HELP PLEASE HAS STAR BY MY ANSWER If P (A) = 0.2 and P (B) = 0.3 and A and B are disjoint, what is P (A or B)? (1 point) 0.00 0.06 0.10 0.44 *0.50 4. Given that you roll a fair six-sided die, what is the probability that you roll an odd number...

*Thursday, March 20, 2014 by TIKIMA*

**Science**

How many minutes are required for a radio signal to travel for Earth to a space station in Mars if the planet Mars is 7.83 x 10 to the 7th km from Earth?

*Thursday, March 20, 2014 by Mark*

**Physics!**

Consider someone in a rotating space habitat. The outward force felt by the person A.has no reaction counterpart B.is an interaction with Earth C.is a form of gravity D.is real in the traditional sense

*Wednesday, March 19, 2014 by Anonymous*

**math***1questions*****

1.B New flowers are being planted in acurcular flower bed with a 14-foot dimeter.if each flower requires 1 square foot of space,about how many flowers can be planted A.308 flowers B.154 flowers C.77 flowers D.66 flowers

*Tuesday, March 18, 2014 by matt*

**grammar**

In The Space Before Each of the Following items, place a C if the capitalization is correct, a zero (0) if it is incorrect. Then insert capitals where should be, and draw a line through capitals that should be small letters. 1.the Rocky Mountains i got C 2.my spanish course i ...

*Tuesday, March 18, 2014 by Ryan*

**PRE-CALC**

A number is selected at random from the set {2, 3, 4, … ,10}. Which event, by definition, covers the entire sample space of this experiment? A) The number is greater than 2. B) The number is not divisible by 5. C) The number is even or less than 12. D) The number is neither ...

*Tuesday, March 18, 2014 by Shawna*

**PreCalc**

A weekly census of the tree frog in a park is given week population 1 18 2 54 3 162 4 486 5 1458 6 4374 a. find the function of the form f(x)=Pa^x that describes the frog population at time x weeks. b. what's the growth factor in this situation? (that is, by waht number must ...

*Monday, March 17, 2014 by Andy G*

**Linear Algebra**

Fnd the left null space of matrix A = [5 -3 1] [-2 4 -6] [11 -8 5]

*Monday, March 17, 2014 by Sharon*

**PHS 105**

At a particular instant, two asteroids in inter-stellar space are a distance r = 20 km apart. Asteroid 2 has 10 times the mass of asteroid 1, m2 = 10 m1. 1. If the acceleration of the asteroid 1 toward the asteroid 2 is 1.0 m/s2 , what is the acceleration of the asteroid 2?

*Monday, March 17, 2014 by Mel*

**Math**

An architect has allocated a rectangular space of 264ft^2 for a square dining room and a 10ft wide kitchen. What is both the width of the square dining room and the length of entire space.

*Saturday, March 15, 2014 by pam*

**physics**

An astronaut shoots you in space given that the bullet is weightless, could it injure you?

*Friday, March 14, 2014 by Swastika*

**physics**

Calculate the force needed to accelerate a 1 kg ball by 3 m/s: a. in space along way from the earth. b. on the ground in a direction horizontal to the ground. c. on the earth vertically upward.

*Friday, March 14, 2014 by Swastika*

**a**

Victoria wants to plant a vegetable garden in the shape of a square. She has a space allocated in her backyard that will accommodate 175 square feet. Using the drawing below, use the FOIL method to find the polynomial that represents the area of the square. If x=6, will she ...

*Wednesday, March 12, 2014 by WillyB*

**Science 6th grade Earth's day and night ANSWERS**

1. how does earth's rotation cause day and night? (1pt) As the earth rotates toward the east the sun appears to rise in the east and set in the west. 2.Roughly how many times does the earth rotate during each complete revolution? (1pt) 365. 3. Saturn's day is roughly 10 hours ...

*Wednesday, March 12, 2014 by Queen elsa*

**physics**

A solid lead sphere of radius 10 m (about 66 ft across!) has a mass of about 57 million kg. If two of these spheres are floating in deep space with their centers 20 m apart, the gravitational attraction between the spheres is only 540 N (about 120 lb). How large would this ...

*Tuesday, March 11, 2014 by anonymous*

**math**

type of cd/dvd- number ---------------------------------------------------------- rock CD 26 ---------------------------------------------------------- pop CD 17 ---------------------------------------------------------- comedy CD 11...

*Monday, March 10, 2014 by cecrett*

**Physics**

A rocket is fired in deep space, where gravity and drag forces are 0. If The rocket has in initial mass of 6000kg and eject gas at a relative speed of 2000m/s, how much gas must it eject in the first second (1s) to have an inital acceleration of 25m/s?

*Monday, March 10, 2014 by Smalls*

**algebra**

. Victoria wants to plant a vegetable garden in the shape of a square. She has a space allocated in her backyard that will accommodate 175 square feet. Using the drawing below, use the FOIL method to find the polynomial that represents the area of the square. If x=6, will she ...

*Sunday, March 9, 2014 by billy*

**science**

A distant spaceship carrying a red headlight, emitting light with wavelength 600nm, is heading towards the earth. Observers on the earth detect the light from the headlight as ultraviolet light with wavelength 200nm. What is the velocity of the spaceship? b) As the space ship ...

*Sunday, March 9, 2014 by Relativity quest. help pls*

**Physics**

A spaceship with a mass of 4.60 10^4 kg is traveling at 6.30 10^3 m/s relative to a space station. What mass will the ship have after it fires its engines in order to reach a speed of 7.84 10^3 m/s? Assume an exhaust velocity of 4.86 10^3 m/s.

*Wednesday, March 5, 2014 by Anonymous*

**Earth, Space and Science**

8. A geologist is studying a section of sedimentary rock layers that have been newly exposed by a landslide. Based on what principle, the geologist would assume that the layers increased in age as they looked at them from top to bottom. A. unitarianism B. Principle of ...

*Wednesday, March 5, 2014 by Cassie*

**chemistry**

which of the following summarizes Charles' Law? A. as temperature decreases, the gas particles slow down and take up less space B. as temperature increases, the gas particles slow down and take up less space C. when pressure decreases, the gas particles are allowed to spread ...

*Tuesday, March 4, 2014 by Brianna*

**Science -Check Answers-**

# 2. When __________ forces act on an object, they cause the object to move. •Balanced •Unbalanced (?CORRECT?, MY ANSWER) •Friction •Net # 4. Which of the following terms BEST describes the scenario below? A meteor moving through outer space continues to move on the ...

*Monday, March 3, 2014 by Mindy*

**physics**

The gravitational force between two metal spheres with the same masses are in outer space is 60 N. How large would this force be if the masses of each sphere were cut to a fourth of its original value? F_{attractive} =_____________ N (no rounding up)

*Monday, March 3, 2014 by Melissa*

**physics**

Two spacecraft in outer space attract each other with a force of 45 N. What would the attractive force be if they were \frac{1}{5} as far apart? F_{attractive} = _____________N (no rounding up)

*Monday, March 3, 2014 by Melissa*

**science HELP ASAP!!!!!!!**

12. How do the cherries on a cherry tree help the plant reproduce? (1 point) Cherries develop into seeds, which are young, undeveloped plants. Animals eat the cherries, which helps disperse the plant’s seeds. Pollen inside the cherries fertilizes ovules, which produce seeds...

*Monday, March 3, 2014 by annonomys*

**science**

the astronauts can live for long periods of time in a space station? my answers is yes.

*Friday, February 28, 2014 by Anonymous*

**Lang. Arts**

In the sentence, "She is interested in space exploration." Is the verb just "is" or is it "is interested"? Thanks...

*Thursday, February 27, 2014 by Brandi*

**Chemistry**

A sample of oxygen gas at 295 kPa takes up 456 L of space at standard temperature (the “T” in STP). What is the new volume when the pressure is lowered to standard pressure (the “P” in STP)?

*Wednesday, February 26, 2014 by Bianca*

**Algebra**

Victoria wants to plant a vegetable garden in the shape of a square. She has a space allocated in her backyard that will accommodate 175 square feet. Using the drawing below, use the FOIL method to find the polynomial that represents the area of the square. If x=6, will she ...

*Tuesday, February 25, 2014 by Teresa*

**Math**

Victoria wants to plant a vegetable garden in the shape of a square. She has a space allocated in her backyard that will accommodate 175 square feet. Using the drawing below, use the FOIL method to find the polynomial that represents the area of the square. If x=6, will she ...

*Tuesday, February 25, 2014 by Teresa*