1. Interesting Geometry Probem

    I am bulding a sculpture out of rock and need help figuring out how much rock to buy... Here are the figures... 1 ton of 1.5" rock covers 107 sq. ft. My sculpture will be comprised of 24 layers of rock 2" thick. Each layer will be aproximatly 3ft. by 3ft.

    asked by Elizabeth on November 3, 2006
  2. Physics

    Example 1: (Rock A) is thrown against a larger stationary rock(Rock B). considering the following possibilities... 1. Rock A bounces off of Rock B 2. Rock A splits into two pieces off of Rock B 3. Rock A explodes into many pieces off of Rock B What factors

    asked by Cole on November 8, 2013
  3. Earth Science

    1. In the classroom during a visual inspection of a rock, a student recorded four statements about the rock. Which statement about the rock is an observation? (1)The rock formed deep in Earth’s interior. (2)The rock cooled very rapidly. (3)The rock

    asked by Anonymous on June 18, 2008
  4. Science

    Read the following: The movement of tectonic plates buries a rock deep inside Earth. Intense heat and pressure change the mineral composition of the rock and transform it into Rock A. Rock A melts and comes out to the surface of Earth during a volcanic

    asked by Michele on October 6, 2019
  5. earth

    #40 which type of rock is a result of a rock changing by heat and pressure? a. metamorphic rock b. igneous rock c. sedimentary rock d. metal ores

    asked by ? on January 13, 2013
  6. Earth Science

    1.Which statement made by a student after examining a rock specimen is an inference? (1)The rock is of igneous origin. (2)The rock has rounded edges. (3)The rock is light-colored. (4)The rock contains large crystals. Is it (1)?

    asked by Anonymous on June 18, 2008
  7. science

    Which are examples of chemical weathering? Choose the two correct answers. an increase in temperature in daytime causing a rock to crack an insect digging a hole in rock for its home rock breaking apart during a rock slide oxidation of certain metals in

    asked by West Point on January 15, 2020
  8. Science: Drifting Continents

    Sandstone is a sedimentary rock. Which of the following characteristics would you look for in a piece of sandstone? A) Rock has sparkly or alternating color layers that are bent or folded B) Rock has layers and smaller pieces of rock in it. It also has

    asked by TikiKiwi on February 5, 2016
  9. science

    According to the rock cycle, which of the following transitions are possible? Assume an unlimited number of steps. A. An intrusive igneous rock becomes a sedimentary rock. B. A sedimentary rock becomes soil. C. A metamorphic rock becomes an extrusive

    asked by bianca on January 28, 2009
  10. Physics

    A 56 kg rock climber is climbing a "chimney" between two rock slabs as shown in the figure. The static coefficient of friction between her shoes and the rock is 1.02; between her back and the rock it is 0.70. She has reduced her push against the rock until

    asked by Web on February 10, 2010
  11. Science

    Heat and pressure deep beneath the Earths surface can change any rock into A) chemical rock B) gemstone C) metamorphic rock D) sedimentary rock

    asked by Zack on February 15, 2017
  12. science

    Heat and pressure deep beneath Earth’s surface can change any rock into A. chemical rock. B. gemstone. C. metamorphic rock. D. sedimentary rock. pls help

    asked by Jordyn on January 30, 2020
  13. Science

    Heat and pressure deep beneath the earth surface can change any rock into a chemical rock Jim stone metaphoric rock sedimentary rock

    asked by Anna on January 9, 2019
  14. science

    earth science physical geology; If rock A cuts across rock B, then rock A is rock B a. younger than b. the same age c. older than

    asked by Ruthie on January 7, 2009
  15. Physics

    In the figure, a 52 kg rock climber is climbing a “chimney” between two rock slabs. The coefficient of static friction between her shoes and the rock is 1.20; between her back and the rock it is 0.707. She has reduced her push against the rock until

    asked by Anja on October 24, 2014
  16. Science

    A rock is held steady over a cliff and dropped. 1.1 seconds later, another rock is thrown straight down at a speed of 12.1 m/s, and hits the first rock. How far have the rocks dropped before they collide? How long is the first rock in the air before it

    asked by Gabriel on September 19, 2016
  17. Science

    A scientist observed two rock samples. Sample A was found in the bottom of a dried-up lake and contained fossils. Sample B was found near a volcano and was glassy in appearance. Which statement is MOST LIKELY correct? A. Sample A is an igneous rock, and

    asked by maya on January 25, 2020
  18. Physics

    Four rocks are thrown horizontally from a building, with varying speeds and from various floors. Rock 1 lands a distance r away from the building, rock 2 lands 2r away from the building, rock 3 lands at distance 3r, and rock 4 at 4r. Ignore air resistance.

    asked by Anonymous on July 5, 2014
  19. Physics

    A rock is dropped into a well, and a splash was heard 3 seconds later. If sound travels in air at 344 m/s, A) How deep is the well? B) What are the final positions of the Rock and the Sound? (Rock = Yfr; Sound = Yfs) Known Variables: Gravity = -9 m/s^2

    asked by Aster Calico on January 13, 2018
  20. physics

    Stemming a chimney. A rock climber of mass 71 kg wants to make her way up the crack between two rocks as shown in the figure below. The coefficient of friction between her shoes and the rock surface is ìS = 0.90. What is smallest normal force that she can

    asked by Mel on October 6, 2011
  21. physics

    A catapult gives a rock a vertical velocity of 122m/s. a. Determine the time the rock is in the air. b. Determine the maximum height the rock would reach. c. As the rock leaves the catapult the rock also has a horizontal velocity of 34m/s. solve for the

    asked by Sadie on November 19, 2012
  22. Science

    What is the role of water in the chemical weathering of rock? It aids in changing the chemical composition of rock. It causes small pieces of rock to adhere together. It dissolves rock in the chemical weathering process. It combines chemicals in the rock

    asked by I am a proud weeb on March 10, 2020
  23. Physics

    You throw a small rock straight up from the edge of a highway bridge that crosses a river. The rock passes you on its way down, 7.00 s after it was thrown. What is the speed of the rock just before it reaches the water 29.0 m below the point where the rock

    asked by Mohamed on January 8, 2016
  24. Science

    Hannah is comparing a rock from a riverbed and a rock from deep underground. One is very smooth, and the other has very rough edges. Explain why each rock was probably found in that location. Answer: The rock that is very smooth is likely to be the one

    asked by Bunny Funny on December 3, 2015
  25. College Physics

    Consider a rock thrown off a bridge of height 78.5 m at an angle è = 25° with respect to the horizontal as shown in Figure P4.20. The initial speed of the rock is 15.6 m/s. Find the following quantities: (a) the maximum height reached by the rock (b) the

    asked by HELP on September 12, 2011
  26. Earth science

    A scientist wants to determine the age of a rock. The rock contains an index fossil and an ancient relative of a living organism. Which is more useful for dating the rock, and why? Answer: an ancient relative of a living organism would be more useful for

    asked by Sue on February 17, 2016
  27. pyshics

    A small rock moves in water, and the force exerted on it by the water is given by the equation Fd = kv, where k is a constant. The terminal speed of the rock is measured and found to be 2.0m/s. The rock is projected upward at an initial speed of 6.0m/s.

    asked by Timothy on October 19, 2011
  28. Science

    What could the relative age of two rocks tell you about them? a. One rock is 10,000 years old, and the other is 8,000 years old. b. One rock is older than the other. c. They both have fossils in them. d. One rock is closer to the surface than the other.

    asked by Anonymous on October 8, 2013
  29. Science

    What could the relative age of two rocks tell you about them? a. One rock is 10,000 years old, and the other is 8,000 years old. b. One rock is older than the other. c. They both have fossils in them. d. One rock is closer to the surface than the other.

    asked by Anonymous on October 8, 2013
  30. Rocks

    What could the relative age of two rocks tell you about them? a. One rock is 10,000 years old, and the other is 8,000 years old. b. One rock is older than the other. c. They both have fossils in them. d. One rock is closer to the surface than the other.

    asked by Anonymous on October 9, 2013
  31. science

    What could the relative age of two rocks tell you about them? a. One rock is 10,000 years old, and the other is 8,000 years old. b. One rock is older than the other. c. They both have fossils in them. d. One rock is closer to the surface than the other.

    asked by Anonymous on October 10, 2013
  32. Science

    What could the relative age of two rocks tell you about them? a. One rock is 10,000 years old, and the other is 8,000 years old. b. One rock is older than the other. c. They both have fossils in them. d. One rock is closer to the surface than the other.

    asked by Anonymous on October 8, 2013
  33. science 6th grade

    Q1: What rock comes before quartzite in the rock cycle? What rocks or rock could come just after quartzite in the rock cycle? Q2: A geologist finds a course grained rock with crystals arranged in rows. What can the geologist infer about how this formed and

    asked by Wali on October 29, 2007
  34. science

    Q1: What rock comes before quartzite in the rock cycle? What rocks or rock could come just after quartzite in the rock cycle? Q2: A geologist finds a course grained rock with crystals arranged in rows. What can the geologist infer about how this formed and

    asked by Wali on October 30, 2007
  35. Calculus

    A blast blows a rock straight up at 150 ft/sec. The path of the rock is described by the s(t) = 150t-16t^2 where s is measured in feet and t in seconds. Find the velocity of the rock when it is 200 ft above the ground and when the rock hits the ground.

    asked by Desperate!!!! on February 18, 2012
  36. 7th grade science

    1) a classmate states that igneous rock must always become sedimentary rock next, according to the rock cycle. explain why this statement is incorrect. 2)why would granite have larger crystals than igneous rock s formed when lava cooled above the earth's

    asked by catalina on September 25, 2012
  37. Physics

    a rock is thrown straight up which of the following statemetns concerning the net force acting on the rock at the top of the path is true? assume air resistance is negligible. a)it's equal to the weight of the rock b) it is instantanwously equal to zero c)

    asked by Andrea on November 14, 2007
  38. physics

    You're on a magic bridge floating 25 meters above a lake. You through a rock at an angle of sixty degrees. It takes 5.8 seconds for the rock to reach it's highest point. (a) With what speed did you throw the rock? (b) How far away from the bridge

    asked by Nicole on March 15, 2012
  39. irsc

    a 10-kg rock and a 20-kg rock are dropped at the same time and experience no significant air resistance. if the 10-kg rock falls with acceleration a, what is the acceleration of the 20-kg rock?

    asked by Anonymous on March 26, 2014
  40. Music

    What are rock ensembles? I went searching around the net to find out and all i came up with was the names of some really good rock bands. I'll try find out something useful but it might take a while =( An "ensemble" is a small group of musicians playing

    asked by Mariah on November 16, 2006
  41. physics

    Question 1) A rock is dropped from the top of a 100 meter tall cliff. A. ) How long will it take for the rock to reach the ground. B) What will be the velocity of the rock when it hits the ground? C) How long will it take for the rock to reach the ground

    asked by Anon on December 23, 2015
  42. physical science

    A 100 kg ball of lead rests next to a 10 kg rock. Which statement below is true? a. the lead ball and the rock have equal amounts of inertia b. if the lead ball and the rock fell from the same height in a vacuum, the rock would hit the ground first because

    asked by Trang on October 25, 2010
  43. physics

    Consider a rock that is thrown off a bridge of height 27 m at an angle θ = 24° with respect to the horizontal as shown in the figure above. If the initial speed the rock is thrown is 12 m/s, find the following quantities: (a) The time it takes the rock

    asked by frank on September 6, 2010
  44. algebra

    Rock is thrown from the top of a building. The formula h=-16t+234 describes the height of the rock, h in feet, t seconds after the rock is thrown. how long after the rock is thrown does it hit the ground?

    asked by MB on December 13, 2014
  45. Science grade 2

    1/Compare: look at a rock and a plant. Write about how they are like and different . 2/ Put the rock in a bin. Water the rock and the plant for a week. 3/ Observe: what happens? Answer: It happens that the rock I'd broken. His plant is grow. Please help

    asked by Nn on February 2, 2019
  46. Earth Science

    Rock A has pieces of Rock B included inside it. Which rock is older and how do you know? My answer- I know rock B is older but I don't know how to explain it. Can someone help?

    asked by Camron on November 8, 2007
  47. physics

    A rock stuck in the tread of a 57.0 cm diameter bicycle wheel has a tangential speed of 3.00 m/s. When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2. A) What is the magnitudes of the rock's angular acceleration at t=1.60 s? B) At

    asked by Steph on November 26, 2010
  48. Physics

    One can get a good idea of how deep a well is, for example, by dropping a rock and listening to how long it take to hear the rock as it hits the bottom. Suppose a rock was dropped into a well that was 410 meters deep and after the rock hits the bottom, a

    asked by Jeff J. on September 16, 2011
  49. College Physics

    Part A) A 2.2 kg rock is released from rest at the surface of a pond 1.8 m deep. As the rock falls, a constant upward force of 5.0 N is exerted on it by water resistance. Let y=0 be at the bottom of the pond. Calculate the nonconservative work, Wnc , done

    asked by Kyle on March 3, 2010
  50. Physics

    a small rock with mass 0.20 kg is released from rest at point A which is at the top edge of a large, hemispherical bowl with radius R = .5m. assume that the size of the rock is small compared to R, so that the rock can be treated as a particle, and assume

    asked by Frankie on October 23, 2012
  51. Science

    1. Two 20.-newton forces act concurrently on an object. What angle between these forces will produce a resultant force with the greatest magnitude? (1) 0° (2) 45° (3) 90.° (4) 180.° 2. A rock is thrown straight up into the air. At the highest point of

    asked by Jess on June 12, 2015
  52. Geomery

    Cristian put a large rock on the bottom of the terrarium he made for his pet turtle. The rock is a right rectangular prism 10 cm wide by 12 cm long. The rock displaces 1800 cm3 of water. How high is the rock? 10times12 times 1800 minus 1800 =214200 ??

    asked by Athena on May 27, 2015
  53. Alg 1

    Landon is standing in a hole that is 6.5 ft deep. He throws a rock and it goes up into the air, out of the hole, and then lands on the ground above. The path of the rock can be modeled by the equation y = -0.005x^2 + 0.45x - 6.5, where x is the horizontal

    asked by Jane on April 16, 2013
  54. Physics- displacement, velocity, etc.

    25. Maria is standing at the edge of a cliff that is 10 m high over a canyon. She throws a rock upward off the side of the cliff. Right before the rock reaches the canyon floor, it has a speed of 25 m/s. a) What was the rock’s total displacement? 10

    asked by MM on September 29, 2016
  55. Algebra

    landon is standing in a hole that is 6.5 m deep he throws a rock and it goes up into the air, out of the hole and then lands on the ground above. The path of the rock can be modeled by the equation y=-0.05x^2+4.5x-6.5, where x is the horizontal distance of

    asked by ScarletRose on April 30, 2018
  56. physical science

    A kg ball of lead rests next to a 10 kg rock. which statement below is true:a:the lead ball and rock have the same amount of inertia,b:if the lead ball and the rock fell from the same height in a vacuum, the rock would hit the ground first because it is

    asked by ellen on January 29, 2011
  57. physics

    a rock is thrown straight up and reaches a height at 10 meters. 1.how long was the rock in the air 2.what is the initial vvelocity of the rock?

    asked by gheng on September 13, 2016
  58. science

    a student is observing a rock. which of the follwoinf is an observation 1. the rock is 55g in mass 2. the rock is over billions of years old

    asked by tom on September 25, 2015
  59. physics

    A rock is given a KE of 2.00*10^4 J when it is launched vertically upward. If the rock reaches a height of 50m determine the mass of the rock.

    asked by moooose on January 6, 2015
  60. Science

    A classmate states that igneous rock must always become sedimentary rock next , according to the rock cycle .explain why this statement is not correct

    asked by Freddriuna on October 23, 2013
  61. physics

    One day I decide I want to see how high I can throw a rock. I throw a rock straight up in the air and it has a speed of 30 m/s when it leaves my hand. I then realize this was foolish, as I need to get out of the way before the rock comes back down and hits

    asked by HELP!! on May 17, 2013
  62. Science

    a rock from a riverbed and a rock deep from undergroung. one is very smooth, and the other has a very rough edges. explain why each rock was proabley found in that location

    asked by DEEZ GOT HEE on November 24, 2015
  63. science

    What if one type of rock was missing from the rock cycle. How would the absence of this rock affect the earth's crust and other geologic formation on our planet?

    asked by nana on December 8, 2007
  64. Physics

    Consider the motion of the rock in the figure below. What is the minimum speed the rock can have without the string becoming "slack"? (The rock is traveling in vertical circle. Assume that m = 1.6 kg and r = 0.48 m.)

    asked by Sierra on June 22, 2012
  65. Calculus Help Please!!! Check

    If a rock is propelled upward from the surface of Mars at a velocity of 93 m/sec, it reaches a height s = 93t – 1.86t^2 after t sec. a. Find the rock’s velocity and acceleration at time t. v'(t)=93-3.72t a''(t)=-3.73 b. How long does it take the rock

    asked by Tenshi on April 8, 2014
  66. Calculus Help Please!!! Check

    If a rock is propelled upward from the surface of Mars at a velocity of 93 m/sec, it reaches a height s = 93t – 1.86t^2 after t sec. a. Find the rock’s velocity and acceleration at time t. v'(t)=93-3.72t a''(t)=-3.73 b. How long does it take the rock

    asked by Tenshi on April 8, 2014
  67. Science

    A classmate states that igneous rock must always become a sedimentary rock next, according to the rock cycle. Explain why this is not correct.

    asked by Ally on September 9, 2014
  68. Science

    Vocabulary Write a brief paragraph using the terms sedimentary rock,metamorphic rock,and rock cycle.

    asked by Anonymous on September 30, 2014
  69. Physics

    The force of gravity on a 2.0 kg rock is twice as great as on a 1 kg rock. Why doesnt the heavier rock fall faster?

    asked by Capreeca on July 13, 2011
  70. Science

    Hannah is comparing a rock from a riverbed and a rock from deep underground. One is very smooth, and the other has very rough edges. Explain why each rock was probably found in that location.

    asked by Richard on January 9, 2014
  71. chemistry

    A student finds a rock on the way to school. In the laboratory he determines that the volume of the rock is 29.7 cm3, and the mass in 139.943 g. What is the density of the rock?

    asked by Anonymous on January 16, 2014
  72. physics

    a slingshot launches a rock straight upward at 25 m/s, how high does the rock go, how long is it in the air, what is the velocity and the acceleration of the rock at its highest point

    asked by scott on August 27, 2016
  73. science

    Hannah is comparing a rock from a riverbed and a rock from deep underground. One is very smooth, and the other has very rough edges. Explain why each rock was probably found in that location.

    asked by victoria on March 10, 2014
  74. Calc

    If a rock is thrown upward on the planet Mars with a velocity of 17 m/s, its height (in meters) after t seconds is given by H = 17t − 1.86t^2. (a) Find the velocity of the rock after one second. (b) Find the velocity of the rock when t = a. (c) When will

    asked by Katrina on October 17, 2011
  75. Math

    4. Landon is standing in a hole that is 6.5 ft deep. He throws a rock, and it goes up into the air, out of the hole, and then lands on the ground above. The path of the rock can be modeled by the equation y = 0.005x² + 0.45x – 6.5, where x is the

    asked by Jim on March 11, 2013
  76. Math

    For this problem, a person standing on the edge of a cliff throws a rock directly upward. it is observed that 2 secs later the rock is at its maximum height (in feet) and that 5 secs after that (meaning 7 seconds after being thrown) the rock hits the

    asked by Leah on October 7, 2014
  77. physics

    A man fires a rock of a slingshot directly upward.The rock has an initial velocity of 15m/s.How long will it take for the rock to return to the level he fired it at?

    asked by Shazz on April 4, 2013
  78. science

    Hanna is comparing a rock from a riverbed and a rock deep from undergroung. one is very smooth, and the other has a very rough edges. explain why each rock was proabley found in that location

    asked by HElp on November 24, 2015
  79. physics

    a man fires a rock of a sling shot upwards. the rock has initial velocity of 15m/s. How long will it take for the rock to reach its highest point??

    asked by lenex purre on October 9, 2014
  80. Science HELP!!!!

    1.To study a rock sample, geologists observe the rock's mineral, composition, color, and temperature. true false*** 2.finds a rock with layers and smaller pieces of other rocks embedded in it. the rock is most likely A igneous B sedimentary*** C

    asked by ZOBO322 on March 10, 2016
  81. science

    Layers of mud made mostly of tiny shells and calcite crystals form the soft rock chalk. What type of rock results. Is the answer igneous rock

    asked by anoymous on December 10, 2014
  82. math

    Landon is standing in a hole that is 6.7 ft deep. He throws a rock and it goes up into the air, out of the hole, and then lands on the ground above. the path of the rock can be modeled by the equation y= -0.005x^2 + 0.48x - 6.7, where x is the horizontal

    asked by Jane on April 26, 2012
  83. Physics, Please Help

    A homeowner is trying to move a stubborn rock from his yard which has a mass of 1025 kg. By using a lever arm (a piece of wooden board) and a fulcrum (or pivot point) the homeowner will have a better chance of moving the rock. The homeowner places the

    asked by Mike on November 25, 2012
  84. Physics - Half Life Question Check!!!

    An ancient rock is found to contain 40Ar gas, indicating that 77% of the 40K in the rock has decayed since the rock solidified. Any argon would have boiled out of liquid rock. How long ago did the rock solidify? The half-life of 40K is 1.25 billion years.

    asked by Meli on April 28, 2015
  85. Science

    3. Through which process will metamorphic rock and igneous rock change into sedimentary rock?

    asked by LOL :) on January 28, 2016
  86. science

    according to the diagram, though which process will metamorpic rock and igneous rock change into sedimentary rock? A. cooling of lava B. weathering, deposition, and erosion C. cementation and compaction D. heat and pressure

    asked by helpppp on May 14, 2019
  87. physics

    On Earth a rock falls an unknown vertical distance from a resting position and lands in a lake. If it takes the rock 2.5 seconds to fall, how high is the cliff that the rock fell from?

    asked by guy on October 28, 2010
  88. Physics

    A 1.1 kg lizard lies on a flat rock tilted. A person decides to tilt the rock hoping that the lizard falls off. The rock is tilted at an angle of 15 degrees with respect to the horizontal. The coefficient between the rock and the lizard is .16. What is the

    asked by Elle on November 19, 2012
  89. calculus help

    At time t=0, an astronaut stands on a platform 3 meters above the moon's surface and throws a rock directly upward with an initial velocity of 32 m/sec. if the acceleration due to gravity is 1.6 m/sec^2. a) find the equations of motion for the throwing of

    asked by Anonymous on April 25, 2014
  90. statistics

    A national park is famous for its beautiful desert landscape and its many natural rock formations. The following table is based on information gathered by a park ranger of all rock formations of at least 3 feet. The height of the rock formation is rounded

    asked by Brittany Buford on November 1, 2011
  91. statistics

    A national park is famous for its beautiful desert landscape and its many natural rock formations. The following table is based on information gathered by a park ranger of all rock formations of at least 3 feet. The height of the rock formation is rounded

    asked by Brittany Buford on November 1, 2011
  92. Ýndustrial Engineering

    The figure shows the paths of a golf ball your friend drops from the window of her apartment and of the rock you throw from the ground at the same instant. The rock and the ball collide at x = 41.00 m, y = 17.02 m, and t = 2.94 s. If the ball was dropped

    asked by Ozgun on March 18, 2013
  93. Basic Geology

    I need help with a Science essay. The question reads: "Hannah is comparing a rock from a riverbed and a rock from deep underground. One is very smooth, and the other has very rough edges. Explain why each rock was probably found in that location." In order

    asked by JPtiger13 on May 25, 2017
  94. Geology

    How were divisions of time separated when scientists created the geologic time scale? by the thickness of rock strata by the color of rock strata by the fossils found in rock strata by the location of rock strata

    asked by Hi on February 21, 2013
  95. Science

    Why are index fossils useful to geologists? A. They tell the age of the rock at one location only. B. They tell the absolute age of the rock in which they occur. C. They tell the relative age of the rock in which they occur. D. They tell the ages of many

    asked by Keira Stone on January 9, 2020
  96. physics

    You drop a rock from rest out of a window on the top floor of a building, 50.0 m above the ground. When the rock has fallen 3.80 m, your friend throws a second rock straight down from the same window. You notice that both rocks reach the ground at the

    asked by chloe on September 17, 2014
  97. j

    . A student finds a rock on the way to school. In the laboratory he determines that the volume of the rock is 22.7 cm3, and the mass in 39.943 g. What is the density of the rock? Round to the nearest tenth place (answer should look like #.#). Remember your

    asked by Anonymous on October 5, 2017
  98. Physics

    You shoot a rock with a wrist-rocket straight up, it takes 6 seconds for it to come back down (IGNORE THE HEIGHT YOU SHOT IT FROM.) How high did the rock go? what was the rock's speed initially going up (V1)? How fast is it traveling when it hits the

    asked by Dakota on October 21, 2011
  99. physics

    You drop a rock from rest out of a window on the top floor of a building, 50.0 m above the ground. When the rock has fallen 3.80 m, your friend throws a second rock straight down from the same window. You notice that both rocks reach the ground at the

    asked by Anonymous on September 17, 2014
  100. science

    which statement about metamorphic rock is true? A.sandstone is a metamorphic rock B.metamorphic rock is cooled lava C.metamorphic rock is made from the two other kinds of rocks D.metamorphic rocks float because they are full of trapped gases and holes

    asked by Anonymous on January 13, 2010

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