1. physics

    A pair of blocks, one 3 times as massive as the other, are connected by a compressed spring. When the spring is released, the blocks fly apart. Compared to the heavier block, how many times faster does the lighter block accelerate?

    asked by Carlos on October 16, 2010
  2. English

    I included other questions. Can you please help me improve them? Thanks a lot. 1) Do you like staying with your host family? Do you think you will miss them once back in America? 2) What will you miss most about your staying in Italy? (Your host family,

    asked by Mike on March 29, 2011
  3. statistics 7

    Home values tend to increase over time under normal conditions, but the recession of 2008 and 2009 has reportedly caused the sales price of existing homes to fall nationwide (BusinessWeek, March 9, 2009). You would like to see if the data support this

    asked by ANAHI on September 24, 2014
  4. statistics 7

    Home values tend to increase over time under normal conditions, but the recession of 2008 and 2009 has reportedly caused the sales price of existing homes to fall nationwide (BusinessWeek, March 9, 2009). You would like to see if the data support this

    asked by MIA on September 24, 2014
  5. Statistics 7

    Home values tend to increase over time under normal conditions, but the recession of 2008 and 2009 has reportedly caused the sales price of existing homes to fall nationwide (BusinessWeek, March 9, 2009). You would like to see if the data support this

    asked by Vanessa on September 24, 2014
  6. statistics 7

    Home values tend to increase over time under normal conditions, but the recession of 2008 and 2009 has reportedly caused the sales price of existing homes to fall nationwide (BusinessWeek, March 9, 2009). You would like to see if the data support this

    asked by Vanessa on September 24, 2014
  7. physics

    Three blocks are in contact with each other on a frictionless horizontal surface. A 696 N horizontal force is applied to the block with mass of 4.7 kg as shown in the figure below. The acceleration of gravity is 9.8 m/s 2 . 4.7 kg 5.5 kg 7.1 kg ) What is

    asked by Anonymous on October 19, 2012
  8. physics

    Three blocks are in contact with each other on a frictionless horizontal surface. A 696 N horizontal force is applied to the block with mass of 4.7 kg as shown in the figure below. The acceleration of gravity is 9.8 m/s 2 . 4.7 kg 5.5 kg 7.1 kg F a) What

    asked by Anonymous on October 19, 2012
  9. Help me! Physics

    A block of aluminum with a mass of 2.6 kg is at 13C and comes in contact with a hot block of copper with a mass of 10.2 kg at 93C. What is the equilibrium temperature in Celsius degrees? caluminum = 0.22 kcal/kgC ccopper = 0.093 kcal/kgC

    asked by Sierra on January 18, 2013
  10. physics

    a simple harmonic oscillator consists of a block of mass 2 kg attached to a spring of spring constant 100 N/m. when t=1 s, the position and velocity of the block are x=.129 m and v=3.415 m/s. A) what is the amplitude i figured that out and got sqrt(50) B)

    asked by Sarah on March 31, 2008
  11. physics

    Two blocks are connected by a lightweight, flexible cord that passes over a frictionless pulley. If mass one equals 3.6 Kg and mass two equals 9.2 Kg, and block two is initially at rest 140 cm above the floor, how Long does it take block two to reach the

    asked by Anonymous on September 21, 2012
  12. Physics

    Both block A and B mass 3kg and are initially 2m above the ground. They slide down a smooth ramp and then across a rough surface with a speed of 4m/s. How much energy did the block lose due to the friction along the rough surface? AND is transformed into

    asked by Stephanie on January 31, 2011
  13. physics

    A block of mass m is placed on a smooth rod of mass m .Rod is horizontal initially. Two threads holding the block inclined at 45degree.Then the right thread is burnt. Just after burning of thread find Tension of left string?

    asked by Naina on January 11, 2012
  14. Physics-Atwood's Machine

    A 5 kg block rests on a horizontal surface. Determine the horizontal force required to accelerate the block at 3 m/s^2. The frictional coefficient is 0.5. Fnet=mass(accer.) FH=5kg (3m/s^2)= 15N I don't know what to make of the frictional coefficient

    asked by Tristan on November 13, 2014
  15. phsics

    A block is at rest on an inclined plane whose elevation can be varied. The coefficient of static friction is μs= 0.4, and the coefficient of kinetic friction is μk = 0.16. The angle of elevation θ is increased slowly from the horizontal. At what value

    asked by help on October 25, 2010
  16. Physics

    n the figure below, the coefficient of kinetic friction between the block and inclined plane is 0.18 and angle θ = 55°. What is the block's acceleration (magnitude and direction) assuming the following conditions? (a) It is sliding down the slope. m/s2

    asked by Rachel on February 20, 2013
  17. Geometry

    A rectangular city block measures 105 by 88 meters.The city council wants to divide the block into two triangles of equal area. What is the length of the hypotenuse of each triangular area?( I already found the area of the whole rectangle and the area of

    asked by Anonymous on November 15, 2011
  18. Maths

    A rectangular block that is 12 cm x 8 cm x 5 cm is made by stacking individual centimeter cubes into the formation. The base of the block is 12 cm x 8 cm. Everything on the outside of the block is painted except the base. How many of the centimeter cubes

    asked by Gracias on September 17, 2012
  19. MATH PLESE

    A $2,000 deposit at an APR of 5.4% with quarterly compounding for 8 years. The amount after 8 years ?? I need to find what the amount would be after 8 years please help

    asked by Tommy on January 28, 2013
  20. mathematics

    thabo is x years old and lizzie is y years old write down algebraic expression for a) thabo's age in 6 years time

    asked by aubrey on August 14, 2014
  21. maths

    amelie is x years old her sister is four years older her brother is three times her age the sum of their age is 44 years

    asked by sophia on November 28, 2016
  22. Math

    Before 5 years a man was 3 years timeshis boy but after 10 years the father's ge will be 6 more than 2 times his boy Didn't get the question

    asked by Buma on December 6, 2017
  23. Physics

    a block of mass 1500kg lying steady on horizontal surface of a table needs 200N horizontal force to come in motion. What is coefficient of static friction between the block and the surface of table

    asked by Janmesh patel on August 23, 2015
  24. physics

    A 5.0 MULTIPLIED BY 10 TO THE POWER OF 2g aluminium block is heated to 350 degrees celcius. determine the number of kilograms of ice at 0 degrees celcius that the aluminium block will melt as it cools.

    asked by audrey on January 21, 2008
  25. physics

    Two blocks of equal masses are connected by a string. Block 1 is pulled by a force of 30 N which accelerates both blocks at 3 m/s2 along a surface of negligible friction A) find the masses of each block B) find the tension

    asked by Thikha on January 26, 2015
  26. Physics

    A 10.3 kg block of ice slides without friction down a long track. The start of the track is 4.2 m higher than the end of the track, and the path traveled is 8.0 m. Find the speed of the block when it reaches the end of the track.

    asked by Breezerlea on February 22, 2011
  27. Physics

    a block of mass 1500kg lying steady on horizontal surface of a table needs 200N horizontal force to come in motion. What is coefficient of static friction between the block and the surface of table

    asked by Janmesh patel on August 22, 2015
  28. physics

    A 9.1 g ball is hit into a 98 g block of clay at rest on a level surface. After impact, the block slides 8.0 m before coming to rest. If the coefficient of friction is 0.60, determine the speed of the ball before impact.

    asked by Erin on June 23, 2012
  29. physics

    A 2.50m -long, 450g rope pulls a 10.0kg block of ice across a horizontal, frictionless surface. The block accelerates at 2.50m/s2 . How much force pulls forward on the rope?

    asked by Matt on March 27, 2015
  30. 5th grade

    where would i find middle ages help

    asked by shirley on December 20, 2008
  31. mat

    I was 35 when my niece was born and she is 12. 47-12=35. What would be our ages x's 3

    asked by kay on April 14, 2012
  32. Math

    2(x-y)-(x+y) I have been stuck on this problem for ages.. Please help!!

    asked by May on March 2, 2016
  33. History

    How did the Dark Ages end?

    asked by Bea on September 5, 2012
  34. Humanities

    Where there toilets in the middle ages?

    asked by Matt on August 24, 2007
  35. science

    on a large-scale topographic map, how are airports and major highways treated differently than houses and small features? someone help me with this question?

    asked by janet on November 11, 2009
  36. English

    Should students be allowed to invade established neighborhoods and live in unlicensed and unsafe rooming houses? How can I re-write the above question so it is not biased?

    asked by Jessica on September 28, 2012
  37. Social Studies

    Which of the following is a positive event of the trustee period? A. defense against Spain B. profitable trade with the Indians C. building houses and public buildings D. All of the Above I think D?

    asked by Amber on October 5, 2014
  38. Math Word Problem

    The Mesozoic Era began about 250,000,000 years ago. The Palezoic Era began 292,000,000 years before that. How long ago did the Palezoic Era Begin? A. 42,000,000 Years B. 492,000,000 Years C. 542,000,000 Years D. 556,000,000 Years

    asked by Jared on September 24, 2013
  39. discrete math

    How many ways are there to select 9 countries in the United Nations to serve on a council if 1 is selected from a block of 60, 3 are selected from a block of 63 and 5 are selected from the remaining 66 countries?

    asked by carlton on April 4, 2012
  40. ASTRONOMY-HELP PLEASE!!!!!

    Equipment:      Geiger counter.    Laboratory emitters of alpha, beta and gamma radiation.    Substances which may or may not be emitters    Assorted possible radiation blocking material. 

    asked by Rebecca on November 15, 2011
  41. statistics

    At a large dept. store, the avg. number of years of employment for a cashier is 5.7 with a standard deviation of 1.8 years. If the number of years of employment at this department store is normally distributed, what is the probability that a cashier

    asked by Kelly on January 4, 2013
  42. Physics

    A block of mass 3.42 kg is drawn at constant speed a distance of 1.32 m along a horizontal floor by a rope exerting a constant force of magnitude 8.62 N and making an angle of 17.0 degrees above the horizontal. Compute the coefficient of friction between

    asked by CPhy on April 19, 2013
  43. Physics

    A block of mass 3.42 kg is drawn at constant speed a distance of 1.32 m along a horizontal floor by a rope exerting a constant force of magnitude 8.62 N and making an angle of 17.0 degrees above the horizontal. Compute the coefficient of friction between

    asked by CPhy on April 19, 2013
  44. Physics

    If a block of mass 10.0 kg rests on a horizontal surface, and the coefficient of static friction is 0.300, what is the maximum static friction that can act on the block? If you could walk me step by step on completing this problem, I would be extremely

    asked by Matt on September 22, 2014
  45. Physics

    Three blocks are in contact with each other on a frictionless horizontal surface. A 417 N horizontal force is applied to the block with mass of 3.7 kg as shown in the figure below. The acceleration of gravity is 9.8 m/s^2. (the picture looks like this) F

    asked by alice on November 17, 2012
  46. Introductory Physics

    I am really nervous about mathematics, so I just want to make sure I am doing these problems correctly. I figure if I am getting the incorrect answer, I must be doing them incorrectly and need to work on them some more. I THINK I have them correct, but I

    asked by Cecelia on March 30, 2011
  47. Physics

    Two copper blocks, each of mass 2.12 kg, initially have different temperatures,t1 = 18° C and t2 = 26° C. The blocks are placed in contact with each other and come to thermal equilibrium. No heat is lost to the surroundings (a) Find the final temperature

    asked by Dev on April 25, 2012
  48. physics

    A 5-kg block lies on a smooth table top. A horizontal string connected to the block is passed over a small pulley at the edge of the table, and a body of mass 8 kg is hung from the other end of the string. Find the tension in the string and the

    asked by Rhian on August 28, 2016
  49. physics

    A 2.00 kg block, on a horizontal surface with coefficient of static friction 0.900, is pushed by a force that is directed down at an angle of 30.0 degrees to the horizontal. Find the minimum magnitude of the force needed to get the block to start moving.

    asked by Trace on November 19, 2010
  50. physics

    A 280-g wood block is firmly attached to a very light horizontal spring, as shown in the figure. The block can slide along a table where the coefficient of friction is 0.30. A force of 22 N compresses the spring 18 cm. If the spring is released from this

    asked by Cara on April 6, 2011
  51. physics

    A 280-g wood block is firmly attached to a very light horizontal spring, as shown in the figure. The block can slide along a table where the coefficient of friction is 0.30. A force of 22 N compresses the spring 18 cm. If the spring is released from this

    asked by Cara on April 6, 2011
  52. science

    You measure the dimensions of a rectangular block of aluminum to determine its volume. It has the following dimensions. length = 10.27 cm; width = 4.92 cm; height = 1.53 cm Assuming that each of these measurements is accurate to the nearest 0.01 cm, find

    asked by christina on February 3, 2014
  53. college physics

    A 280 g wood block is firmly attached to a very light horizontal spring, as shown in the figure . The block can slide along a table where the coefficient of friction is 0.30. A force of 22 N compresses the spring 18 cm. If the spring is released from this

    asked by peyton on May 3, 2010
  54. physics

    i have noo idea how to do this, please hellppppp A 15.6 kg block is dragged over a rough, hor- izontal surface by a constant force of 72.2 N acting at an angle of angle 34.8 above the horizontal. The block is displaced 24.6 m and the coefficient of

    asked by ally on February 25, 2011
  55. math

    a cord is used to lower vertically a block of mass M a distance d at a constant downward acceleration of 1\4 g, find the work done by the cord on the block ? FIND THE WORK DONE BY THE FORCE OF GRAVITT

    asked by samina on January 1, 2011
  56. Physics

    Consider two blocks that are resting one on top of the other. The lower block has mass m2 = 3.5 kg and is resting on a frictionless table. The upper block has mass m1 = 2.7 kg. Suppose the coefficient of static friction between the two blocks is given by

    asked by Anonymous on October 10, 2013
  57. physics

    doing webwork when i came across this question. sure i had it right but apparently im not. The weightless horizontal bar in the figure below is in equilibrium. Scale B reads 4.20 kg (N.B. as you know, the scale should read N, but no one told the

    asked by sam on July 19, 2015
  58. physics

    find the average of a block being propelled propelled by an elastic band. very sorry to disturb Mr bobpurlsey again. i am very thankful to you replies. the only problem that lies in the answer is that i haven't been taught hooke's law in Grade 11. which

    asked by james on June 13, 2007
  59. Physics :)

    A block of iron at 39.0°C has mass 2.30 kg. If 3.50×104 J of heat are transferred to the block, what is its resulting temperature? The specific heat of iron is 449 (J/kg*K) Someone else had this question on here but I cannot get the right answer from the

    asked by Taylor on June 21, 2012
  60. physics

    Unless otherwise stated, all objects are located near the Earth's surface, where = 9.80 . A block of mass 23.0 slides down a frictionless surface inclined at 35. Part A To ensure that the block does not accelerate, what is the magnitude of the smallest

    asked by sammy on September 30, 2012
  61. Physics

    A horizontal spring with K = 110 N/m has one end attached to the wall. A 250g block is pushed onto the free end, compressing the spring by 0.190 . The block is then released, and the spring launches it outward. Neglecting friction, what's its speed when it

    asked by Eman on October 12, 2011
  62. Physics

    A bullet of mass 10.6 grams is fired with a speed of 125 meters per second toward a wood block of mass 187 grams initially at rest on a very smooth (assume frictionless) surface. What is the change in momentum of the bullet if it becomes embedded in the

    asked by Matt on October 10, 2013
  63. physics

    a 100-g bullet is fired horizontally into a 14.9kg block of wood resting on a horizontal surface and the bullet becomes embedded in the block. if the muzzle velocity of the bullet is 250 m/s , what is the speed of the bullet immedatly after the impact

    asked by melissa on February 4, 2008
  64. Physics

    A 15 g lead bullet is tested by firing it into a fixed block of wood with a mass of 1.05 kg. The block and the embedded bullet together absorb all the heat generated. After thermal equilibrium has been reached, the system has a change in temperature

    asked by Eric on September 20, 2010
  65. statistics

    A bag contains five purple ("P") blocks and one yellow ("Y") blocks. Without looking into the bag you reach in, take out a block, return the block to the bag, and then repeat the same process a number of times. Which of the following sequences of selected

    asked by Anonymous on August 2, 2012
  66. Math

    If there was ever a small quantity of the Universe creating a multiverse up to 30 thousand light years away, does that mean that we the people are only 14.56 x 100^23 light years away? Keep in mind that we use the original equation e=mc^2 for light years.

    asked by Stanley Stanford on February 8, 2018
  67. English

    1. The shop is two blocks away form this post office. 2. The bakery is at the corner one block away form the flower shop. 3. The ware house is between the two buildings one block away form the book shop. ------------------ Are they all grammatical? Would

    asked by rfvv on May 19, 2015
  68. accounting

    Tyler Constructions constructed a new campus block to house Business School. The building cost a tool of $180,000,000 to construct and was completed 30 March 2011, with an expected useful life of 60 years and residual value of $10,000,000. The building is

    asked by ss on June 18, 2016
  69. Algebra

    In 1992 the life expectancy of males in a certain country was 61.6 years. In 1996, it was 65.5 years. Let E represent the life expectancy in years and let t represent the number of years

    asked by Linda on June 10, 2010
  70. Probability

    Keisha and Kelly have an astronomy club devoted to observing the moon. If the moon is visible 28 out of 29 days and the girls can make it outside 14 days per 29 days, what is the probability they will go out on a night when the moon is not visible?

    asked by PT on March 5, 2018
  71. math

    1. Samuel is 2/3 as old as his brother. In five years, he will be 3/4 as old as his brother will be. Find their present ages. a. If x = the brother’s age now, write an expression for Samuel’s present age in terms of x. b. Write an expression for the

    asked by Morgan S on December 19, 2012
  72. Physics

    A solid cylinder is mounted above the ground with its axis of rotation oriented horizontally. A rope is wound around the cylinder and its free end is attached to a block of mass 54.0 kg that rests on a platform. The cylinder has a mass of 265 kg and a

    asked by Goyle on April 10, 2014
  73. physics

    A 1.67-kg block of aluminum at 21.7°C is to be melted and reshaped. How much heat must flow into the block in order to melt it? use the following values: For copper: c_copper=0.386 kJ/kg.K T_fusion=1359 K L_fusion=205 kg/K For aluminum: c_aluminum=0.900

    asked by maria on December 9, 2011
  74. physics

    A 4.40kg block hangs from a spring with spring constant 2160N/m . The block is pulled down 4.60cm from the equilibrium position and given an initial velocity of 1.40m/s back toward equilibrium. What is the frequency of motion? What is the amplitude? What

    asked by Dib on November 24, 2014
  75. Physics

    A 4.40kg block hangs from a spring with spring constant 2160N/m . The block is pulled down 4.60cm from the equilibrium position and given an initial velocity of 1.40m/s back toward equilibrium. What is the frequency of motion? What is the amplitude? What

    asked by Dib on November 23, 2014
  76. Physics

    A m1 = 4.20-kg block on a smooth tabletop is attached by a string to a hanging block of mass m2 = 2.70 kg, as shown in the figure. The blocks are released from rest and allowed to move freely. a) Find the acceleration of the blocks. ___m/s^2 b) Find the

    asked by Alyssa on October 16, 2012
  77. physics

    A 23.1 kg block is dragged over a rough, horizontal surface by a constant force of 95.0 N acting at an angle of angle 29.3 ° above the horizontal. The block is displaced 5.50 m, and the coefficient of kinetic friction is 0.341. Find the magnitude of the

    asked by Elisabeth on September 15, 2011
  78. Physics

    A 4.40kg block hangs from a spring with spring constant 2160N/m . The block is pulled down 4.60cm from the equilibrium position and given an initial velocity of 1.40m/s back toward equilibrium. A) What is the frequency of the motion? B) What is the

    asked by Dib on November 24, 2014
  79. math

    A diagram shows the design of the 12 in quilt (12" x 12") block that a quilter is sewing. What are the dimensions of each triangle in the quilt block? What are the dimensions of each triangle to the nearest tenth of an inch?

    asked by Jane on April 3, 2013
  80. Child Care

    1.At what age does exercise begin to result in strength in boys and girls? a)between ages 1 and 2 b)between ages 3 and 4 c)between ages 5 and 6 d)between ages 6 and 7 2.Temperatures in child care education setting should be set at __ in the summer and __

    asked by Destiny on March 9, 2011
  81. physics

    A block of mass m slides down an incline of mass M. As shown, th acceleration of the block is a. The coefficient of kinetic friction between the block and the incline is ì1, while the coefficient of kinetic friction between the incline and ground is ì2.

    asked by Calista on January 22, 2013
  82. Physics

    19. A track consists of a frictionless incline plane, which is a height of 0.5 m, and a rough horizontal section with a coefficient of kinetic friction 0.02. Block A, whose mass is1.5 kg, is released from the top of the incline plane, slides down and

    asked by Alex on August 24, 2015
  83. Physics

    A track consists of a frictionless incline plane, which is a height of 0.5m, and a rough horizontal section with a coefficient of kinetic friction 0.02. Block A, whose mass is 1.5kg, is released from the top of the incline plane, slides down and collides

    asked by Gwladys on August 9, 2013
  84. AP Physics B

    A track consists of a frictionless incline plane, which is a height of 0.5m, and a rough horizontal section with a coefficient of kinetic friction 0.02. Block A, whose mass is 1.5kg, is released from the top of the incline plane, slides down and collides

    asked by Gwladys on August 9, 2013
  85. Math

    Stacy requires $3,000 in three years to make a down payment on a new car. She will receive 8% compounded annually for the three years. How much must she invest today to have the $3,000 in three years? (a) $ 2,381.49 (b) $ 2,419.35 (c) $ 2,000.00 (d) $

    asked by Mike on November 4, 2011
  86. statistics

    Sweden is reported to have among the highest percentage of citizens aged 80 years and over, at approximately 5.5 % (i.e. 5.5 % of it's population falls within this age category). Suppose 20 individuals are randomly selected from the population, and X is

    asked by Brittany on February 5, 2012
  87. Physics

    You have been asked to design a "ballistic spring system" to measure the speed of bullets. A bullet of mass m is fired into a block of mass M. The block, with the embedded bullet, then slides across a frictionless table and collides with a horizontal

    asked by Marie on March 24, 2014
  88. math

    The Taylors have purchased a $290,000 house. They made an initial down payment of $10,000 and secured a mortgage with interest charged at the rate of 10%/year on the unpaid balance. Interest computations are made at the end of each month. If the loan is to

    asked by rere on April 11, 2017
  89. P

    A 48-kg block is pushed across a horizontal surface with a horizontal force of 98 N against a friction force of 12 N. The acceleration of the block is

    asked by job on March 5, 2017
  90. raisethorpe

    a person has debt of R2000 due in 2 years and R4000 due in 5 years.The interest rate is 15% compounded quarterly.If R1000 is paid today and the balance in 3 years, what is the balance that must be paid to discharge the debt taking 3 years from today as

    asked by xoli on May 9, 2016
  91. Physics: Aluminum Block

    A 1.65-kg aluminum block and a 6.85-kg copper block are connected by a light string over a frictionless pulley. The two blocks are allowed to move on a fixed steel block wedge (of angle è = 31.0°) as shown in the figure. Making use of the table below,

    asked by crystal on March 5, 2013
  92. Alegebra, math 116

    1. Suppose you are in the market for a new home and are interested in a new housing community under construction in a different city. a) The sales representative informs you that there are two floor plans still available, and that there are a total of 56

    asked by Jess on November 22, 2009
  93. math

    Kelly drew a 10x10 grid. Richard drew a 16x16 grid. They each shaded 1/4 of their grids. Who shaded more squares? Why did they each shade a different number of squares?

    asked by renita on April 26, 2016
  94. Mayflower

    People began to feel safer in the Middle Ages because___________ and _______________ had stabalized Europe. Since this is not my area of expertise, I searched Google under the key words "Middle Ages stabilized Europe" to get these possible sources:

    asked by Anonymous on June 13, 2007
  95. Math help check

    Which polynomial does the model represent? The model shows 1 black square block, 2 white thin blocks, 1 black thin block, 1 white small square block, 3 black small blocks. a –x³ + 2x² – 3x + 2 b. x² + x – 2 c. –x² – x + 2 d. –x² + x – 2

    asked by Oscar on March 21, 2015
  96. Math

    Stacy requires $3,000 in three years to make a down payment on a new car. She will receive 8% compounded annually for the three years. How much must she invest today to have the $ 3,000 in three years? (a) $ 2,381.49 (b) $ 2,419.35 (c) $ 2,000.00 (d) $

    asked by Anonymous on November 8, 2011
  97. math

    A bag contains five purple ("P") blocks and one yellow ("Y") blocks. Without looking into the bag you reach in, take out a block, return the block to the bag, and then repeat the same process a number of times. Which of the following sequences of selected

    asked by Anonymous on August 2, 2012
  98. Physics

    A bullet of mass 10g travelling horizontally at a speed of 100m/s embeds itself in a block of wood of mass 990g suspended by strings so that it can swing freely find: a.the vertical height through which the block rises. B.how much of the bullet energy

    asked by Oterhia on September 1, 2012
  99. physics

    A 18.4 kg block is dragged over a rough, horizontal surface by a constant force of 126 N acting at an angle of 34.1 ◦ above the horizontal. The block is displaced 20 m, and the coefficient of kinetic friction is 0.123. The acceleration of gravity is 9.8

    asked by allan on January 6, 2015
  100. Physics

    A bullet with mass (m) is fired vertically into a block of wood with mass (M) that is hanging from a rope at rest. If the billet has an initial speed Vi (initial velocity) find the height (h) that the block will swing into the air after the bullet becomes

    asked by Stephy on February 26, 2017