Friday

May 22, 2015

May 22, 2015

**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 at 5:49pm*

**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 at 8:28am*

**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 at 1:16am*

**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 at 6:14pm*

**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 at 8:26pm*

**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 at 12:04pm*

**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 at 12:26pm*

**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&...
*Thursday, March 27, 2014 at 1:31am*

**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 ...
*Wednesday, March 26, 2014 at 7:40pm*

**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 ...
*Tuesday, March 25, 2014 at 4:27pm*

**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...
*Tuesday, March 25, 2014 at 12:58pm*

**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 at 9:19am*

**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 at 9:45pm*

**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 at 10:21pm*

**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 at 9:55pm*

**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 at 3:38pm*

****************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 at 12:12pm*

**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 at 12:45am*

**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 at 8:07pm*

**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 at 11:11pm*

**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 at 2:46pm*

**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 ...
*Tuesday, March 18, 2014 at 11:24am*

**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 ...
*Monday, March 17, 2014 at 9:55pm*

**Linear Algebra**

Fnd the left null space of matrix A = [5 -3 1] [-2 4 -6] [11 -8 5]
*Monday, March 17, 2014 at 9:50pm*

**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 at 4:57pm*

**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 at 9:12pm*

**physics**

An astronaut shoots you in space given that the bullet is weightless, could it injure you?
*Friday, March 14, 2014 at 9:22pm*

**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 at 9:19pm*

**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 at 7:24pm*

**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 ...
*Wednesday, March 12, 2014 at 4:30pm*

**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 at 12:10pm*

**math**

type of cd/dvd- number ---------------------------------------------------------- rock CD 26 ---------------------------------------------------------- pop CD 17 ---------------------------------------------------------- comedy CD 11...
*Monday, March 10, 2014 at 7:29pm*

**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 at 4:50pm*

**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 at 9:00pm*

**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 at 12:44pm*

**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 at 6:23pm*

**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 at 12:11pm*

**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 ...
*Tuesday, March 4, 2014 at 8:37pm*

**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 ...
*Monday, March 3, 2014 at 5:57pm*

**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 at 2:59pm*

**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 at 2:58pm*

**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 ...
*Monday, March 3, 2014 at 11:07am*

**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*

**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 at 5:15pm*

**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 at 8:02pm*

**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 at 10:32pm*

**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 at 7:19pm*

**Science help ms sue.**

Multiple Choice 1. Which of the following terms refers to an object that orbits the sun and has enough gravity to be spherical but has not cleared the area of its orbit? (1 point) comet asteroid dwarf planet planet 2. Which of the following statements about the solar system&#...
*Tuesday, February 25, 2014 at 6:14pm*

**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°. 1-19.93 cm 2-19.69 cm 3-19.50 cm 4-19.09 cm
*Monday, February 24, 2014 at 12:35pm*

**Math**

An architect has allocated a rectangular space of 589ft^2 for a square dining room and a 12ft wide kitchen. Find both the width of the square dining room and the length of the entire rectangular space. The width of the square dining room is _____ft The length of the entire ...
*Sunday, February 23, 2014 at 8:23pm*

**Linear Algebra**

Vector in Space-Directions and Magnitudes Let a, b, c, d, e, & f be vectors such that <a,b>=6, <a,c>=6, <a,c>=-4, <b,c>=7, b+c=d, -8a+8b=e, -4b+2c+f compute the following inner product: <b,a>=__ <a,d>=__ <e,c>=__ <a,f>=__
*Saturday, February 22, 2014 at 9:25pm*

**Science**

1. Which type of eclipse would you expect to see if the moon passes directly between Earth and the sun? (1 point) a solar eclipse* a lunar eclipse a total lunar eclipse a penumbra 2. Which of the following statements about a lunar eclipse is true? (1 point) A lunar eclipse can...
*Saturday, February 22, 2014 at 8:45pm*

**Statistics**

Astronomers treat the number of stars in a given volume of space as a Poisson random variable. The density in the Milky Way Galaxy in the vicinity of our solar system is one star per 16 cubic light years. (a) What is the probability of three or more stars in 16 cubic light ...
*Thursday, February 20, 2014 at 8:16pm*

**Science**

Read an article, and use the article to jump-start your thinking about designing your very own space mission. Think about what you want to explore in the solar system (and why!) and how you might get there. Click on the link below to read the Science NetLinks article “...
*Thursday, February 20, 2014 at 5:09pm*

**Art- Check Answers- Please**

1. This is where an interior designer does most of her work. in a factory at the client's home in an office <<<<<<<<< in a studio 2. When looking at fabrics, an interior designer will focus on these characteristics. shape and form space and color...
*Wednesday, February 19, 2014 at 4:58pm*

**Art**

1. This is where an interior designer does most of her work. in a factory at the client's home in an office <<<<<<<<< in a studio 2. When looking at fabrics, an interior designer will focus on these characteristics. shape and form space and color...
*Wednesday, February 19, 2014 at 4:11pm*

**science **

Which statement best describes Newton’s Law of Universal Gravitation? A.Large objects, like Earth and the Sun, attract other objects everywhere in the universe. B.Gravity is a kind of magnetic force between objects and Earth. C.Gravity is the result of the curvature of ...
*Monday, February 17, 2014 at 8:35pm*

**math**

Bert wants to make a larger version of a drawing he saw in a magazine. The drawing fits into a square with each side measuring 7 cm. If Bert makes his copy twice the size of the square measured in the original drawing, how much space will it cover on the paper he uses?
*Monday, February 17, 2014 at 7:39pm*

**Math: Probablity**

A penny, a nickel, and a dime are flipped at the same time. Each coin can come out either heads (H) or tails (T). a. What name is given to the act of flipping the coins? b. There are eight elements in the sample space (i.e., HHH,THT, etc.). List all eight outcomes. c. How many...
*Saturday, February 15, 2014 at 6:14pm*

**ENGLISH **

1. Consider this quote: "In each of these historical instances . . . mistrust led to misunderstanding, which led to armed conflict." The ellipsis in this quote is appropriate if A. the omission is longer than 10 words. B. the meaning and spirit of the quote is ...
*Friday, February 14, 2014 at 11:50am*

**Physics**

If the electric field is zero everywhere inside a region of space, the potential must also be zero in that region. TRUE or FALSE, WHY?
*Thursday, February 13, 2014 at 8:44pm*

**english part 1**

Which of the following best expresses the writer's main idea in “Single Room, Earth View”? A. Space exploration leads to human progress. B. Space travel offers a unique view of Earth. C. Astronauts are highly trained scientists. D. Pollution is endangering Earth.
*Thursday, February 13, 2014 at 7:20pm*

**physics**

1 A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is NOT true? The passenger is in motion relative to the passer-by The passer-by is stationary relative to the passenger Both ...
*Wednesday, February 12, 2014 at 6:11am*

**Physics**

A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe, starting from rest, takes...
*Wednesday, February 12, 2014 at 1:52am*

**Science**

Associate each item in the table with at least one field of science and one area of technology/engineering. Choose from the terms given at the bottom. Automobile aspirin shirt computer pesticide satellite robot atomic bomb vaccination can of soup polyester wrapper skyscraper ...
*Tuesday, February 11, 2014 at 1:00am*

**statistics**

The space shuttle is launched 9 times a year with a break down occurring 1/10 of the time. What is the probability that two randomly selected space shuttles launched 9 times a year and both having accidents occurring in that year?
*Monday, February 10, 2014 at 1:08pm*

**physics**

passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is NOT true? The passenger is in motion relative to the passer-by The passer-by is stationary relative to the passenger Both observers ...
*Sunday, February 9, 2014 at 7:09pm*

**probability**

PROBLEM 4: PARKING LOT PROBLEM (3 points possible) Mary and Tom park their cars in an empty parking lot with n≥2 consecutive parking spaces (i.e, n spaces in a row, where only one car fits in each space). Mary and Tom pick parking spaces at random. (All pairs of parking ...
*Friday, February 7, 2014 at 4:10pm*

**probability**

In this problem, you are given descriptions in words of certain events (e.g., "at least one of the events A,B,C occurs"). For each one of these descriptions, identify the correct symbolic description in terms of A,B,C from Events E1-E7 below. Also identify the ...
*Friday, February 7, 2014 at 4:09pm*

**math vector**

Find the unit tangent vector T(t) and find a set of parametric equations for the line tangent to the space curve at point P. r(t)=ti+t^(2)j+tk, P(0,0,0)
*Friday, February 7, 2014 at 1:07am*

**Itt-Tech**

How much space does the dining are take up for an airship assume the mass of the balloon is 1000kg and dining are for 100 quest
*Thursday, February 6, 2014 at 6:35pm*

**science**

Mary and Tom park their cars in an empty parking lot with n >_ 2 consecutive parking spaces (i.e, spaces in a row, where only one car fits in each space). Mary and Tom pick parking spaces at random. (All pairs of parking spaces are equally likely.) What is the probability ...
*Thursday, February 6, 2014 at 1:37pm*

**science**

Let , , and be disjoint subsets of the sample space. For each one of the following statements, determine whether it is true or false. Note: "False" means "not guaranteed to be true." a) True FalseStatus: unsubmitted b) True FalseStatus: unsubmitted c) True...
*Thursday, February 6, 2014 at 1:14pm*

**Math**

I am an old number with zero in my tens space. I have a square number less than 9 in my tens of thousands space and half of that in the thousands space. My hundreds digit is 4 more than my tens digit and my ones digit is less than 3.
*Wednesday, February 5, 2014 at 2:56am*

**science**

plz any one i am abit confused can you answer these questions thx 05. The space surrounding a charge within which the influence of its charge extends is known as. (a) Electric field (b) Magnetic field (c) Line of force (d) Electric intensity 06. A region around a stationary ...
*Tuesday, February 4, 2014 at 5:45am*

**Physics**

plz any one i am abit confused can you answer these questions thx 05. The space surrounding a charge within which the influence of its charge extends is known as. (a) Electric field (b) Magnetic field (c) Line of force (d) Electric intensity 06. A region around a stationary ...
*Tuesday, February 4, 2014 at 5:44am*

**physics**

The Space Shuttle travels at a speed of about 5.05 x 103 m/s. The blink of an astronaut's eye lasts about 94.4 ms. How many football fields (length = 91.4 m) does the Space Shuttle cover in the blink of an eye?
*Monday, February 3, 2014 at 6:15pm*

**English**

Write the possessive form of the noun in parentheses. 1/ (Estelle) dentist looked at her teeth. Answer: Estelle's 2/ The (dentist) nurse helped him. Answer: dentist's 3/ Her ( mother) car was parked outside. Answer: mother's 4/ her (brother) appointment was next . ...
*Sunday, February 2, 2014 at 3:14pm*

**Physics**

A 100W incandescent lamp of filament area 45 mm^2, emits all its energy by radiation into the surrounding space of room at 22C. If the filament emissivity is 0.32, find the temperature of the filament?
*Sunday, February 2, 2014 at 8:31am*

**science**

plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance. If the changes are in ...
*Thursday, January 30, 2014 at 2:49am*

**science**

plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance. If the changes are in ...
*Thursday, January 30, 2014 at 2:48am*

**Physics**

plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance. If the changes are in ...
*Thursday, January 30, 2014 at 2:48am*

**Science**

plz any one these are some mcqs i am preparing for a test i m not sure with the answers of these mcqs this is not a homework not an online course exam so feel free to answer these thankx MCQS 01. Changes of equal magnitude are separated by some distance. If the changes are in ...
*Thursday, January 30, 2014 at 2:47am*

**Physics**

What is the net force exerted by these two charges on a third charge q 3 = 45.0nC placed between q 1 and q 2 at x 3 = -1.145m ? Your answer may be positive or negative, depending on the direction of the force. Express your answer numerically in newtons to three significant ...
*Monday, January 27, 2014 at 1:08pm*

**gifted talented science**

pls, help! this is hard and confusing! 1. How does runoff affect a community? (1 point) Runoff can supply new homes and businesses with the water that they need. Runoff can provide the water that fish in streams and lakes rely on. Runoff can prevent streams and lakes from ...
*Monday, January 27, 2014 at 10:13am*

**Physics**

A 1.25kg book in space has a weight of 8.35N. What is the value of the gravitational field at that location ?
*Thursday, January 23, 2014 at 9:50pm*

**geometry**

A cylinder has a height of 16 cm and a radius of 5 cm. A cone has a height of 12 cm and a radius of 4 cm. If the cone is placed inside the cylinder as shown, what is the volume of the air space surrounding the cone inside the cylinder? (Use 3.14 as an approximation of π.)
*Thursday, January 23, 2014 at 7:20pm*

**business**

Tim Urban, owner/manager of Urban's Motor Court in Key West, is considering outsourcing the daily room cleanup for his motel to Duffy's Maid Service. Tim rents an average of 50 rooms for each of 365 nights (365 X 50 equals the total rooms rented for the year(. Tim'...
*Wednesday, January 22, 2014 at 9:33pm*

**science help plzzz**

Multiple Choice 1. Which of Earth's spheres contains mountains, valleys, and other landscapes? (1 point) atmosphere biosphere geosphere hydrosphere 2. Which of the following are examples of destructive forces? (1 point) ice wind both ice and wind neither ice nor wind 3. ...
*Wednesday, January 22, 2014 at 6:44pm*

**Science**

Can someone please please help me? I don't have a text book, i have a online book and it isn't working. Can someone please be nice and help me? Science isn't my subject! 1. Why is Earth’s temperature just right for life? (1 point) Earth’s core is hot ...
*Tuesday, January 21, 2014 at 12:12pm*

**Physics-forces**

1. NASA launched a 550kg satellite into space. Its engines have a thrust of 8000N. a) What is the downward froce of gravity acting on the rocket at blast off? (is it 5390N?) b) What is the acceleration of the rocket at blast-off? (Hint: Fine Fnet first) 2. A planet has a mass ...
*Monday, January 20, 2014 at 12:18am*

**Science**

1. Which type of eclipse would you expect to see if the moon passes directly between Earth and the sun? (1 point) a solar eclipse* a lunar eclipse a total lunar eclipse a penumbra 2. Which of the following statements about a lunar eclipse is true? (1 point) A lunar eclipse can...
*Sunday, January 19, 2014 at 6:30pm*

**Science**

1. Which type of eclipse would you expect to see if the moon passes directly between Earth and the sun? (1 point) a solar eclipse* a lunar eclipse a total lunar eclipse a penumbra 2. Which of the following statements about a lunar eclipse is true? (1 point) A lunar eclipse can...
*Sunday, January 19, 2014 at 4:58pm*

**physics- multiple choice**

1. A transport truck pulls on a trailer with a force of 600N [E]. The trailer pulls on the transport truck with a force a) of zero b) of less than 600 N is the truck is slowing down c) equal to 600 N only if the truck is moving at constant velocity d) equal to 600 N no matter ...
*Sunday, January 19, 2014 at 2:10pm*

**science **

The Australian grass tree, from the genus Xanthorrhoea in the lily family, grows to a height of about 4.5 m, bears long narrow leaves in a tuft at the top of the trunk, and produces yellow or white flowers in a spike above the leaves. A yellow-flowered tree was self-crossed. ...
*Saturday, January 18, 2014 at 3:38pm*

**statistics**

A lottery uses 4 urns containing chips 0 to 9. One chip is selected at random from each urn. How many sample points are in the sample space?
*Saturday, January 18, 2014 at 11:24am*

**social studies(CHECK ANSWERS PLEASE)**

please check these answers please 1. Which region of Mexico are sinkhole most likely to be found? A. Mexico plateau B.Baja California C.sonoran desert D.Yucatan peninsula(I PICK THIS) 2.what effect does altitude have on Mexico's climate? A. as altitude decreases, the ...
*Friday, January 17, 2014 at 4:56pm*

**social studies**

please can someone answer these there destroying me !!! 1. Which region of Mexico are sinkhole most likely to be found? A. Mexico plateau B.Baja California C.sonoran desert D.Yucatan peninsula 2.what effect does altitude have on Mexico's climate? A. as altitude decreases, ...
*Friday, January 17, 2014 at 2:48pm*

**social studies**

I provided my answers and if they are wrong can you correct them?i know nothing about this subject..thanks 1. Which region of Mexico are sinkhole most likely to be found? A. Mexico plateau B.Baja California C.sonoran desert(I PICK THIS) D.Yucatan peninsula 2.what effect does ...
*Friday, January 17, 2014 at 1:41pm*

**Physics**

A 13 kg asteroid is traveling through space with velocity v = 110 m/s when it breaks up into three equal pieces. One piece is left at rest, and a second one continues with same velocity. What was the energy of the explosion?
*Wednesday, January 15, 2014 at 6:41pm*