1. Theories and issues in working with school-age chi

    The term distal supervision means  A. supervision by a nonworking parent. B. a lack of supervision. C. self-supervision. D. supervision from a distance.  Is this answer C.
  2. Statistics

    A group of scientists created 150 trials to measure whether electric shock treatment could cure paranoid delusions. Of these trials, 52 were successful. Find the margin of error E that corresponds to a 95% confidence level. The critical value for 95%
  3. statistics

    1) A group of scientists created 150 trials to measure whether electric shock treatment could cure paranoid delusions. Of these trials, 52 were successful. Find the margin of error E that corresponds to a 95% confidence level. The critical value for 95%
  4. Statistics

    A group of scientists created 150 trials to measure whether electric shock treatment could cure paranoid delusions. Of these trials, 52 were successful. Find the margin of error E that corresponds to a 95% confidence level. The critical value for 95%
  5. statistics

    You measure 34 turtles' weights, and find they have a mean weight of 66 ounces. Assume the population standard deviation is 9.3 ounces. Based on this, construct a 90% confidence interval for the true population mean turtle weight. Give your answers as
  6. math

    Q1:solve log(5)x-log(25)(x+10) = 0.5 Q2:If 2log(a)x=1+log(a) (7x-10a) ,find x in terms of a. Q3:Find x for which 27x3^lgx = 9^1+lg(x-20) Q4:Find x in terms of a and c ,given that log(√ a)(1/x)+log(a)x +log(a^2) x +log (a^4)x=c
  7. physics

    An oscillator consists of a block attached to a spring (k = 299 N/m). At some time t, the position (measured from the system's equilibrium location), velocity, and acceleration of the block are x = 0.0817 m, v = -16.9 m/s, and a = -108 m/s2. Calculate (a)
  8. physics

    An oscillator consists of a block attached to a spring (k = 299 N/m). At some time t, the position (measured from the system's equilibrium location), velocity, and acceleration of the block are x = 0.0817 m, v = -16.9 m/s, and a = -108 m/s2. Calculate (a)
  9. physics

    An oscillator consists of a block attached to a spring (k = 299 N/m). At some time t, the position (measured from the system's equilibrium location), velocity, and acceleration of the block are x = 0.0817 m, v = -16.9 m/s, and a = -108 m/s2. Calculate (a)
  10. Physics Help

    1.9 kg block slides along a frictionless surface at 1.8 m/s. A second block, sliding at a faster 4.5 m/s, collides with the first from behind and sticks to it. The final velocity of the combined blocks is 3.5 m/s. What was the mass of the second block? How
  11. physics

    An oscillator consists of a block attached to a spring (k = 299 N/m). At some time t, the position (measured from the system's equilibrium location), velocity, and acceleration of the block are x = 0.0817 m, v = -16.9 m/s, and a = -108 m/s2. Calculate (a)
  12. physics

    In a television set, electrons are accelerated from rest through a potential difference of 18 kV. The electrons then pass through a 0.34 T magnetic field that deflects them to the appropriate spot on the screen. Find the magnitude of the maximum magnetic
  13. Math Analysis

    31. Radioactive decay of material is determined using the formula N = Noe^-kt. Find the constant k for Plutonium-239 given that its half-life is 24,390 years. ==> I don't really get where to start here because the problem does not give you how much
  14. theory to practice

    Which of the following is an obstacle to learning for a begining mover? A.Knowledge of what elements of the movememts to focus on. B. Chronic indifference characteristic between birth and age three. C.shorter time to monitor perceptual input from the
  15. Caring for School-Age Children

    When properly executed, the behavior management strategy known as time-out becomes A.a positive reinforcer B.more effective than logical consequences C.a conversation betwen child and adult D. suitable punishment for misbehavior I chose the letter A. Can
  16. child care

    which of the following is an obstacle to learning for a begininning mover? A.knowledge of what elements of the movement to focus on B.chronic indifference characteristics between birth and age three C.shorter time to monitor perceptual input from the
  17. Theory to Practice

    Which of the following is an obstacle to learning for a beginning learner? A.Knowledge of what elements of the movement to focus on B. Chronic indifference characteristic between birth and age three C. Shorter time to monitor perceptual input from the
  18. English

    In the poem Catching up with Flannery O'Connor by Mary Hood, What does the reference to Queen Anne's lace in line 3 emphasize aboout the two characters? A. a similar appreciation for nature B. A difference in age C. A need to disagree D. A shared
  19. social studies

    1.What role did Marco Polo play in the age of exploration? a)He found the first sea route to Asia. b)He conquered native peoples in the Americas. c)He invented new tools and methods of navigation. d)He increased European interest in foreign lands idk i
  20. Social studies

    What role did Marco Polo play in the age of exploration? a)He found the first sea route to Asia. b)He conquered native peoples in the Americas. c)He invented new tools and methods of navigation. (MY ANSWER) d)He increased European interest in foreign lands
  21. hca240

    Write a 150- to 200-word script for a radio ad that promotes a healthy musculoskeletal system in old age. Address the risk factors for arthritis, osteoporosis, and injuries from falls. Incorporate prevention strategies such as proper nutrition (calcium,
  22. childcare

    Questions 1–3 are based on the following scenario: Mrs. Carroll and her sister, Ms. Howard, plan to operate a small day care center in a remodeled building. They're licensed and staffed to handle up to 24 children. Ms. Howard doesn't plan to work at the
  23. Algebra 2 Homework

    1.) Identify the axis of symmetry. f(x) = x2 + 10x + 9 2.) Find the vertex for the parabola given below. f(x) = 3x2 + 12x + 16 3.) Find the quadratic function that includes each set of values. (1, 0), (2, 5), (4, 21) 4.) f(x) = -2x2 - 3x + 35 Is this
  24. Humanities

    What is the relationship between spirituality and Gothic architecture? In what ways does Gothic architecture display this time period as an Age of Faith? What other features of this culture do the other arts reveal? Refer to specific examples.
  25. statistics

    The cholestetol levels of young women aged 20 to 34 vary with a mean of 185 milligrams per decliter and standard deviation 39 mg/dl. What cholesterol level would be a young woman have in this age group if they were 2 standard deviations below the mean?
  26. English

    Recall an event when you became aware of the importance of dividing chores evenly and fairly without being influenced by gender. Can someone please explain this a little more clearly to me, I kind of get what it says, but I am not able to remember about
  27. The practice of working with school age children

    A good alternative to introducing hammers, crosscut saws, and nails when introducing young children to woodworking is to use A. staples. B. glue. C. screws. D. water. B.
  28. PROBATION and PAROLE

    1) Sigmund Freud: A. is considered the father of behaviorism. B. stressed the importance of the unconscious. C. considered crime as essentially an environmental failure. D. developed reality therapy as a mode of rehabilitation. 2) According to
  29. Physics

    You drive 109 km/h east for 31 min , then 82 km/h north for 42 min . Let the +x-axis point east and the +y-axis north. A)Find your average velocity for the entire trip. B)Find your average speed for the entire trip. You should probably do part b first.
  30. Math(Please help)

    Related Rates: Gas is escaping from a spherical balloon at the rate of 2ft^3/min. How fast is the surface area shrinking (ds/dt) when the radius is 12ft? (A sphere of radius r has volume v=4/3 pi r^3 and surface area S=4pi r^2.) Remember that ds/dt = ds/dr
  31. Physics

    From the edge of the rooftop of a building, a boy throws a stone at an angle 24.0° above the horizontal. The stone hits the ground 4.40 s later, 104 m away from the base of the building. (Ignore air resistance.) Find the initial velocity of the stone.
  32. Physics

    On a frictionless, horizontal air track, a glider oscillates at the end of an ideal spring of force constant 2.30 N/cm. The graph in the figure shows the acceleration of the glider as a function of time. Find the mass of the glider. Find the maximum
  33. Calc Physics

    The velocity as a function of time for an asteroid in the asteroid belt is given by v(t)= vo e^(-t/to)i + (vo t/ 2 to) j with vo and to constants. Use ti = 0 as the initial time, and tf = 472 s as the final time. The values for the constants that you will
  34. Environmental science

    Estimate the chronic daily intake of 1,1,1-trichloroethane from exposure to city water supply that contains a 1,1,1-trichloroethane concentration equal to the drinking water standard of 0.2 mg/L. Assume the exposed individual is a child who consumes water
  35. Math

    A quadrilateral contains two equal sides measuring 12 cm each with an included right angle. If the measure of the third side is 8 cm and the angle opposite the right angle is 120 degrees, find the fourth side and the area of the quadrilateral.
  36. Geometry

    A quadrilateral contains two equal sides measuring 12 cm each with an included right angle. If the measure of the third side is 8 cm and the angle opposite the right angle is 120 degrees, find the fourth side and the area of the quadrilateral.
  37. Physics (6)

    A 10-g bullet moving 1000 m/s strikes and passes through a 2.0-kg block initially at rest, as shown. The bullet emerges from the block with a speed of 400 m/s. To what maximum height will the block rise above its initial position?
  38. Physics

    A 20.0 kg crate is pushed across a rough floor for a distance of 90.0 cm. When the force pushing the block is equal to 80.0 N and applied at an angle of 18.0 below horizontal to the block, the block moves at a constant speed of 2.10 m/s. What is the net
  39. Physics

    A group of students observes that a wooden block (m = 0.40 kg) on the end of a string with a radius of 0.7 meters makes 9 rotations in 20.7 seconds when twirled. a)What is the block's tangential (linear) speed? b)What is the block's angular speed?
  40. Physics

    A group of students observes that a wooden block (m = 0.40 kg) on the end of a string with a radius of 0.7 meters makes 8 rotations in 20.7 seconds when twirled. What is the block's tangential (linear) speed? What is the block's angular speed?
  41. physics

    A 3.40 kg block is pushed along the ceiling with an constant applied force of F = 82.0 N that acts at an angle θ = 50° with the horizontal, as in the figure below. The block accelerates to the right at 5.80 m/s2. Determine the coefficient of kinetic
  42. College Math

    In a certain triangle the measure of one angle is triple the measure of a second angle but is 110 degrees less than the measure of the third angle. [The sum of the measures of three interior angles of a triangle is always 180 degrees.] What is the measure
  43. math formulas needed

    Use the following table to answer the questions. (Give your answers correct to two decimal places.) x 1 1 3 3 5 5 7 7 9 9 y 3 2 6 1 3 3 3 2 5 3 (a) Find the equation of the line of best fit. y hat = + x (ii) Graph this equation on a scatter diagram. (Do
  44. English

    1. If our reporters find people throw away garbage, they will report them on TV. 2. If our reporters find people throwing away garbage, they will report them on TV. (Which one is correct, #1 or #2? Do we have to use 'find' or 'finding'? Are both OK?)
  45. math

    5. Cesium-137 is a radioactive isotope. The following formula represents the remaining amount of a 300 gram sample of cesium-137 in a storage tank after t years: N(t)=300e−0.02297t A) Determine the remaining amount of cesium-137 in the storage tank
  46. Astronomy

    Imagine that you are an astronomer, and you are planning to do a survey to find new brown-dwarf stars. You need to calculate how sensitive your search needs to be (and hence how big a telescope you will need and how long the survey will take). You want to
  47. Chemistry

    "Find the total energy lost by the contents of a Styrofoam picnic cooler when a 3.60 kg block of ice placed inside the cooler completely melts (at 0 Celsius). The ice had an initial temperature of -10.00 Celsius." I did this question and i got 73080J but
  48. Mechanics

    Please help me A 15 g bullet strikes and embeds in a 3 kg block suspended at the end of a 1.1 m string. After the collision the string rises to a maximum angle of 23 degrees to the vertical. Find: a) The speed of the bullet. b) the percentage loss in
  49. Physics

    A force F = 119 N acts at an angle α = 31◦ with respect to the horizontal on a block of mass m = 22.5 kg, which is at rest on a horizontal plane. The acceleration of gravity is 9.81 m/s 2 . If the static frictional coefficient is µs = 0.72,
  50. math

    The daily cost C, in RM, of producing a product is C(x)=1000+72x-0.06x^2 (0 more & equal x less & equal 60) where x represents the number of product produced. a) Find the daily cost of producing 50 units b) Find the marginal cost function. c) Find C’(50)
  51. MATH

    For each of the following angles, find a coterminal angle with measure (theta symbol) such that 0 degrees is greater than or equal to theta symbol < 360 degrees. a) -100 degrees. I really do not understand how to work this problem and I need help
  52. Statistic

    Jake plays basketball. Assume y= the number of basketball goals that Jake makes during a given season, and assume y can only take values from 0 to 6. The following table represents the probability distribution for the discrete random variable y. y0123456
  53. calculus help

    A drinking cup is made in the shape of a right circular cylinder. for a fixed volume, we wish to make the total material used, the circular bottom and the cylindrical side, as small as possible. Find the ratio of the height to the diameter that minimizes
  54. Language Arts

    Passage: "Harriet Tubman: Conductor on the Underground Railroad" by Ann Petry 1) What is the implied main idea of the passage? A) Harriet and the fugitives only survived because of the kindness of others. B) Harriet worked hard to ensure the fugitives
  55. physics

    ball of mass m = 1.70 kg is released from rest at a height h = 54.0 cm above a light vertical spring of force constant k. The ball strikes the top of the spring and compresses it a distance d = 8.80 cm Neglecting any energy losses during the collision,
  56. Math - Equations of plane(check)

    Consider the plane that contains points A(2,3,1), B(-11,1,2), C(-7,-3,-6). a) Find two vectors that are parallel to the plane. Ans: AC, BC or AB will be parallel to the plane. b) Find two vectors that are perpendicular to the plane. Ans: if i find the
  57. Math - Equations of plane(check)

    Consider the plane that contains points A(2,3,1), B(-11,1,2), C(-7,-3,-6). a) Find two vectors that are parallel to the plane. Ans: AC, BC or AB will be parallel to the plane. b) Find two vectors that are perpendicular to the plane. Ans: if i find the
  58. physics

    A 4 kg wooden block rest on a table. the coefficient of friction between the block and the table is .40. a 5kg mass is attached to the block by a horizontal string passed over a frictionless pulley of neglible mass what is the acceleration of the block
  59. physics

    A 10 N horizontal force pushes a block weighing 4.9 N against a vertical wall (Fig. 6-26). The coefficient of static friction between the wall and the block is 0.55, and the coefficient of kinetic friction is 0.35. Assume that the block is not moving
  60. physics

    A 13 N horizontal force pushes a block weighing 4.5 N against a vertical wall (Fig. 6-26). The coefficient of static friction between the wall and the block is 0.68, and the coefficient of kinetic friction is 0.35. Assume that the block is not moving
  61. physics

    Two blocks are tied together with a string as shown in the diagram.(There is a block on a horizontal incline, its mass is 1.0kg, there is a rope connecting that block to a pulley which then connects to another block that is 2.0kg. The angle of the incline
  62. Physics

    A block of mass m 1 sits at rest on a table over a hole in the table. From below the table, a bullet of mass m 2 is fired vertically upwards into the block. The bullet imbeds itself in the block. The block and bullet rise to a maximum height h. What is the
  63. program planning

    An appropriate sensory-motor activity for a child up to eight months of age is A. touching toys of different shapes, sizes, and textures. B. playing with puzzles with a few large pieces. C. drawing with crayons or markers. D. stringing large beads on a
  64. The practice of working with school age children

    One can encourage children to engage in sociodramatic play by A. providing easels and paint. B. creating forts and other structures. C. involving them in community development decisions. D. demanding that they pay attention to the rules. B.
  65. History

    What was the purpose of multinational corporations during the Age of Discovery? to overthrow monarchies and promote capitalism to promote free trade among European nations to colonize foreign lands to make a profit to lead crusades against the Arab empire
  66. British Literature

    How do I mark the syllables, serparate the feet with short vertical lines and indicate the ryme scheme for: But could youth last, and love still breed, Had joys no date, nor age no need, Then these delights my mind might move, To live with thee, and be thy
  67. History

    Why did the Hittites and others migrate from Central Asia to Mesopotamia? A- the needed more land for growing populations B- they were enlarging their empire C- the Persian army drove them out D- climate change brought a mini ice age to Asia My guess is D
  68. Spanish

    What is one common detail in the lives of the Spanish musicians Falla, Ponce, and Lecuona? A. they each wrote the same number of ballets B. they each played professionally by age 5 C. they each lived in Spain for a period of time D. they each received
  69. Physics

    An 8.00g bullet is fired at 220m/s into a 250g wooden block that is initially at rest. The bullet remains in the block and after the collision the two slide up a 30 degree incline. a) Solve for the velocity of the bullet block after the collision. b)
  70. Middle Childhood Psychology

    Could someone please check my answers to make sure that they are correct. If any of my answers are wrong, please provide me with the correct answer? Thank you! 1. Marabella knows that a given amount of spaghetti remains the same whether the spaghetti is in
  71. physics

    Suppose that a 1.00 cm3 box in the shape of a cube is perfectly evacuated, except for a single particle of mass 1.13 x 10^-3 g. The particle is initially moving perpendicular to one of the walls of the box at a speed of 525 m/s. Assume that the collisions
  72. Calculus HELP!!!

    Here is the graph. h t t p : / /goo.gl/PTc2I (spaces added at the beginning so it could be added as a website) 1. Let g be the function given by g(x)=integrate from -4 to x f(t)dt. For each of g(-1), g'(-1), and g''(-1), find the value of state that it
  73. math

    Hi, I was working on my math homework and I was stumbling on these problems. I tried looking at the solutions but my answers were completely off. Here are the ones I'm stuck on: If vectors O(0,0,0), A(6,0,0), B(6,-sqrt(24), sqrt(12)), and C(0,-sqrt(24),
  74. Science

    1. Describe the landscape of the ocean floor. 2. (a) What is the Mid-Atlantic Ridge? (b) What is the relationship between an ocean ridge and an ocean trench? 3. What new technologies allowed scientists to confirm that the sea floors are spreading? 4. Hess
  75. Math - Geometry

    Five times the measure of an angle is 48 more than the measure of its supplement. The measure of the angle is... A)142 B)38 C)180 D)48
  76. Algebra

    I have a pair of supplementary angles, the measure of one angle is 8 times the measure of the other. What is the measure of the larger angle?
  77. geometry

    In a trapezoid EFGH, side EF is parallel to side HG. The measure of ÚE is 90o and the measure of ÚF is 85o. What is the measure of ÚG?
  78. literacy

    To critically evaluate the qualifications of an author on a topic, carefully consider all of the following except the A. number and type of awards the author has received. B. author's age. C. other articles the author has written. D. author's educational
  79. physics

    A pair of sleds weighs 25kg and experiences a frictional force of 25N. If a dog team applies a 175N force pulling it 12m. 1. Find the work done by friction 2. Find the work done by the dog team 3. Find the net work done I need to compare my answers so the
  80. Physics

    A 4.00 103-kg car has a speed of 9 m/s. The car then hits a tree. The tree doesn't move and the car comes to rest. (a) Find the change in kinetic energy of the car. . J (b) Find the amount of work done in pushing in the front of the car. J (c) Find the
  81. Physics

    Three blocks rest on a frictionless, horizontal table (see figure below), with m1 = 8 kg and m3 = 20 kg. A horizontal force F = 101 N is applied to block 1, and the acceleration of all three blocks is found to be 3.5 m/s2. Find m2. What is the normal force
  82. Chemistry

    What is the empirical formula of benzene, C6H6? I know how to find empirical formula; as long as you know the moles, you can find the ratio and thus the empirical formula. But the question provides nothing and I can only find the Mr? The answer from the
  83. precalculus

    can you check my answers? Find the second difference for the sequence. 7, 6, 7, 10, 15, 22, …. answer: 1 Find first differences for the sequence in order from a1 to a5. Determine whether or not the series is quadratic or not. -1, -3, -1, 5, 15 answer:
  84. physics

    From the edge of the rooftop of a building, a boy throws a stone at an angle 30.0° above the horizontal. The stone hits the ground 4.10 s later, 112 m away from the base of the building. (Ignore air resistance.) (a) Find the initial velocity of the stone.
  85. Physics

    a 5kg block is pushed 3m up a vertical wall with constant speed by a constant force of magnitude f applied at an angle of 30 degrees with the horizontal. if the coefficient of kinetic friction between block and wall is .3, determine the work done by a) f
  86. physics

    A 12 kg block is released from rest on a 30 degree fricitonless incline. Below the block is a spring that can be compressed 2 cm by a force of 270 N. The block momentarily srops when it compresses the spring by 5.5 cm. a) How far does the block move down
  87. math

    With regards to question J: The variables x and y are connected by the equation y = x2 - x - 5. Some corresponding values of x and y are given in the table below. x -4 -3 -2 -1 0 1 2 3 4 5 y 15 7 a -3 -5 b -3 1 7 15 (a) Calculate the values of a and b (b)
  88. Physics

    A block is placed on a frictionless ramp at a height of 14.5 m above the ground. Starting from rest, the block slides down the ramp. At the bottom of the ramp, the block slides onto a frictionless horizontal track without slowing down.At the end of the
  89. Algebra Problems

    Please check my answers. Find the coordinates of the vertex for the parabola defined by the given quadratic function. 1.f(x) = (x - 4)2 - 4 -I got (4,-4) Find the axis of symmetry of the parabola defined by the given quadratic function. 3.f(x) = (x + 2)2 +
  90. physics

    A w1 = 255 N bucket is lifted with an acceleration of a = 2.00 m/s2 by a w2 = 105 N uniform vertical chain. A.Find the tension in the top link of the chain. B.Find the tension in the middle link of the chain. C.Find the tension in the bottom link of the
  91. Physic

    If a 35 g arrow moving at 160 km/h penetrates a block of wood suspended by a rope, what impulse is delivered to the block? (Answer: 1.56kg * m/s) What velocity will the wood block acquire if its mass is 7.0 kg? Ignore the mass of the arrow compared to that
  92. Physics

    Really need help with this asap plz~ there is a 4kg wooden block on top of a wooden ramp forming an angle of 37 degrees above surface.The block is placed 1.2 m up on the ramp and the ramp is connected to another wooden flat board.So when the block slides
  93. physics

    As shown in the diagram, a bullet of mass 7.0 g strikes a block of wood of mass 2.1 kg. The block of wood is suspended by a string of length 2.0 m, forming a pendulum. The bullet lodges in the wood, and together they swing upward a distance of 0.40 m from
  94. Physics

    A bullet of mass m travelling at speed vo in the direction shohwn above strikes a block of mass M and embeds itself in it. The block is sitting on the edge of a frictionless table of height H and is knocked off of the table by the collision. a) What is the
  95. Physics

    A 4.00g bullet, traveling horizontally with a velocity of magnitude 410m/s , is fired into a wooden block with mass of 0.780kg , initially at rest on a level surface. The bullet passes through the block and emerges with its speed reduced to 220m/s . The
  96. physics

    A 0.005kg bullet is fired at 400m/s straight into a stationary 1.0kg block of wood. The bullet exits the far side of the block and continues on the same straight line. The block also moves off in this same direction with a velocity of 1.2m/s. Calculate the
  97. physicss

    A 0.005kg bullet is fired at 400m/s straight into a stationary 1.0kg block of wood. The bullet exits the far side of the block and continues on the same straight line. The block also moves off in this same direction with a velocity of 1.2m/s. Calculate the
  98. Statistics

    You have an SRS of size n = 16 from a Normal distribution with standard deviation = 1. You wish to test H_0 :μ = 0 H_a :μ > 0 You decide to reject H_0 if x bar > 0 and to accept H_0 otherwise. a. Find the probability of a Type I error. That is,
  99. Science

    9. The Pleistocene Epoch, from 1.7 million years ago to 10 000 years ago, was marked by A. a lack of oxygen B. the presence of warm, tropical seas C. the southern movement of the North American continent D. the formation of glaciers that covered parts of
  100. Math

    An open box is to be made from a 11 inch by 11 inch piece of cardboad. this box is constructed by cutting squares that measure x inches on each side from the corners of the cardboard and turning up the sides. Use a graphical calculator to find the height