Newest questions and responses by Tyler
  1. Math

    Is Mrs.Sue still on here?

    asked on January 28, 2019
  2. algebra

    in the diagram below, what is the relationship between the number of rectangles and the perimeter of the figure they form?

    asked on November 1, 2018
  3. science

    Laws differ form theories because laws do not provide

    asked on September 24, 2018
  4. Math

    There are 5 red marbles, 8 blue marbles, and 12 green marbles in a bag. What is the theoretical probability of randomly drawing a red marble and then a green marble? 10%

    asked on September 20, 2018
  5. Math

    Translate each equation into a sentence. 2(m - n) = x + 7 Select one: a. Twice the quantity of m increased by n is x plus 7. b. The quantity m decreased by n is the same as x plus 7. c. The product of 2 and m decreased by n is the same as x plus 7. d.

    asked on July 6, 2018
  6. Math

    A trip from Ohio to new york is 529 miles. what equations show the times t it takes by car if r is the average speed during the trip? t=529/r*** t=529r r=529t t=r/529

    asked on May 10, 2018
  7. Math plz help

    y=-0.08x^2+8.2x y=2.1x+3.5 Solve the system of equations.

    asked on April 17, 2018
  8. Math

    A large container at a party holds 9 liters of lemonade. About how many gallons of lemonade does the container hold?

    asked on April 10, 2018
  9. Math

    i need help with a few problems. 1. find 3 solutions to the equation y=7x-5

    asked on April 9, 2018
  10. Chemistry - stoichiometry

    How many grams of silver chloride can be produced if you start with 4.62 grams of barium chloride ? 2AgNO3 + BaCl2 —> 2AgCl + Ba(NO3)

    asked on March 28, 2018
  11. Chemistry - stoichiometry

    How many grams of silver chloride can be produced if you start with 4.62 grams of barium chloride ? 2AgNO3 + BaCl2 —> 2AgCl + Ba(NO3)

    asked on March 28, 2018
  12. Chemistry - stoichiometry

    How many grams of silver chloride can be produced if you start with 4.62 grams of barium chloride ? 2AgNO3 + BaCl2 —> 2AgCl + Ba(NO3)

    asked on March 28, 2018
  13. Social Studies

    What is the goal of the European Union

    asked on January 21, 2018
  14. Physics

    A physics student stands on the edge of a cliff 2x meters. He throws his physics homework straight up in the air. Derive an expression to calculate the time taken by the homework to come back to the student.

    asked on September 30, 2017
  15. Math

    A rectangular prism has A length of 1/2 foot and the height of 1/4 foot. What is the width of the right rectangular prism if its volume is 1/4 cubic foot?

    asked on May 29, 2017
  16. Algebra2

    determine if the hyperbola is vertical or horizontal then find the vertices foci and asymptotes y^2/25-x^2/100=1 My answers Horizontal?

    asked on May 16, 2017
  17. Physics

    The exterior walls of a house have a total area of 220 m2 and are at 11.9°C and the surrounding air is at 6.7° C. Find the rate of convective cooling of the walls, assuming a convection coefficient of 3.4 W/(m2 · C°).

    asked on April 11, 2017
  18. Physics

    A car of mass 1.33 103 kg is initially moving on a level road at a speed of 18.0 m/s. Compute the increase in temperature of the brakes, assuming that all the mechanical energy ends up as internal energy in the brake system. Assume a total heat capacity of

    asked on April 11, 2017
  19. Physics

    Ice of mass 12.0 kg at 0.00° C is placed in an ice chest. The ice chest has 3.10 cm thick walls of thermal conductivity 1.00 10-5 kcal/s · m · C° and a surface area of 1.20 m2. (a) How much heat must be absorbed by the ice before it melts? (b) If the

    asked on April 11, 2017
  20. English (check answer)

    The success of my presentation tonight ___________ on you. 1. depends 2. is depending 3. will depend 4. has depended is it will depend?

    asked on April 3, 2017
  21. Math

    A ferry boat departed from port and traveled at a rate of 10 miles per hour at an angle 30° north of East across a large river. If the current is flowing at a rate of 4 miles per hour straight south, what is the speed and direction of the boat in the

    asked on March 19, 2017
  22. Algebra

    How do I factor this question? 3n^2-n-4=

    asked on March 15, 2017
  23. Math

    If D represents distance you travel, R represents the rate you are moving, and T represents the time you travel, write a formula for 1) Distance 2) Rate 3) Time

    asked on March 14, 2017
  24. Math

    The Johnson brothers company has lost $240 for 6 straight weeks. Use integer's to write an expression to represent the total losses. Simplify the expression.

    asked on March 14, 2017
  25. Calculus

    Use geometry to evaluate the integral from negative 3 to 3 of f of x, dx for f of x equals the square root of the quantity 4 minus the square of the quantity x plus 1 for x is between negative 3 and 1 including negative 3 and 1, and equals the absolute

    asked on March 5, 2017
  26. Math

    use the remainder theorem to find the remainder when P(x) = x^4-9x^3-5x^2-3x+4 is divided by x + 3 please help me start this problem I have no idea

    asked on February 21, 2017
  27. Math

    Using this formula... E=10^(1.5m+11.4) How much more energy is released in an M = 8.3 earthquake than in an average quake of magnitude M = 6.2? (Round your answer to the nearest integer.)

    asked on February 14, 2017
  28. Calculus

    M = log(E)-11.4/1.5 How do you express E in terms of M?

    asked on February 14, 2017
  29. physics

    United States currency is printed using intaglio presses that generate a printing pressure of 8.1 x 104 lb/in2. A $20 bill is 6.1 in. by 2.6 in. Calculate the magnitude of the force (in pounds) that the printing press applies to one side of the bill.

    asked on February 7, 2017
  30. physics

    An airtight box has a removable lid of area 2.87 × 10-2 m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 7.20 × 104 Pa. The inside of the box is completely evacuated. What is the magnitude of the force

    asked on February 7, 2017
  31. physics

    Accomplished silver workers in India can pound silver into incredibly thin sheets, as thin as 3.00 x 10-7 m (about one hundredth of the thickness of a sheet of paper). Find the area of such a sheet that can be formed from 3.70 kg of silver.

    asked on February 7, 2017
  32. physics

    Two chambers are filled with a fluid. The ceiling of chamber 1 is at the same level as the floor of chamber 2. The pressure at the floor of chamber 2 is 1.2 × 105 Pa. If the area of the ceiling of chamber 1 is 2.0 m2, what is the magnitude F of the force

    asked on February 7, 2017
  33. physics

    The drawing shows two blocks that are placed at the ends of a massless board. The board is balanced on a support that serves as an axis of rotation. The block on the left has a mass of 5.8 kg. What is the moment of inertia of this system about the axis of

    asked on February 3, 2017
  34. physics

    The drawing shows three objects rotating about a vertical axis. The mass of each object is given in terms of m0, and its perpendicular distance from the axis is specified in terms of r0. Rank the three objects according to their moments of inertia, largest

    asked on February 3, 2017
  35. physics

    A hiker, who weighs 811 N, is strolling through the woods and crosses a small horizontal bridge. The bridge is uniform, weighs 3350 N, and rests on two concrete supports, one on each end. He stops 1/6 of the way along the bridge. What is the magnitude of

    asked on February 3, 2017
  36. physics

    The figure shows a jet engine suspended beneath the wing of an airplane. The weight of the engine is 12600 N and acts as shown in the figure. In flight the engine produces a thrust of 69100 N that is parallel to the ground. The rotational axis in the

    asked on February 1, 2017
  37. physics

    The drawing illustrates an overhead view of a door and its axis of rotation. The axis is perpendicular to the screen. There are four forces acting on the door, and they have the same magnitude. Rank the torque τ that each force produces, largest to

    asked on February 1, 2017
  38. physics

    An auto race takes place on a circular track. A car completes one lap in a time of 22.8 s, with an average tangential speed of 37.3 m/s. Find (a) the average angular speed and (b) the radius of the track.

    asked on February 1, 2017
  39. physics

    The earth spins on its axis once a day and orbits the sun once a year (365 1/4 days). Determine the average angular velocity (in rad/s) of the earth as it (a) spins on its axis and (b) orbits the sun. In each case, take the positive direction for the

    asked on February 1, 2017
  40. physics

    The table that follows lists four pairs of initial and final angles of a wheel on a moving car. The elapsed time for each pair of angles is 1.5 s. For each of the four pairs, determine the average angular velocity (magnitude and direction as given by the

    asked on February 1, 2017
  41. physics

    A pitcher throws a curveball that reaches the catcher in 0.65 s. The ball curves because it is spinning at an average angular velocity of 350 rev/min (assumed constant) on its way to the catcher's mitt. What is the angular displacement of the baseball (in

    asked on February 1, 2017
  42. physics

    A meter stick is rotated about the end labeled 0.00 cm, so that the other end of the stick moves through an arc length of 6.04 cm. Through what arc length s does the 25.0-cm mark on the stick move?

    asked on February 1, 2017
  43. MATH

    Which expression calculates the time in hours an object takes to travel 38 miles at a speed of 2 m/h ? 38+2 382 38−2 38⋅2

    asked on January 31, 2017
  44. physics

    The National Aeronautics and Space Administration (NASA) studies the physiological effects of large accelerations on astronauts. Some of these studies use a machine known as a centrifuge. This machine consists of a long arm, to one end of which is attached

    asked on January 26, 2017
  45. physics

    Car A uses tires for which the coefficient of static friction is 0.222 on a particular unbanked curve. The maximum speed at which the car can negotiate this curve is 19.5 m/s. Car B uses tires for which the coefficient of static friction is 0.670 on the

    asked on January 26, 2017
  46. physics

    A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. Such a device is used in medical laboratories, for instance, to cause the more dense red blood cells to settle through the less dense blood serum

    asked on January 26, 2017
  47. physics

    A computer is reading data from a rotating CD-ROM. At a point that is 0.0302 m from the center of the disk, the centripetal acceleration is 284 m/s2. What is the centripetal acceleration at a point that is 0.0803 m from the center of the disc?

    asked on January 26, 2017
  48. physics

    Computer-controlled display screens provide drivers in the Indianapolis 500 with a variety of information about how their cars are performing. For instance, as a car is going through a turn, a speed of 87.5 m/s and centripetal acceleration of 2.48 g (2.48

    asked on January 26, 2017
  49. physics

    There is a clever kitchen gadget for drying lettuce leaves after you wash them. It consists of a cylindrical container mounted so that it can be rotated about its axis by turning a hand crank. The outer wall of the cylinder is perforated with small holes.

    asked on January 26, 2017
  50. physics

    Speedboat A negotiates a curve whose radius is 140 m. Speedboat B negotiates a curve whose radius is 295 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of the boats?

    asked on January 26, 2017
  51. physics

    A car travels at a constant speed around a circular track whose radius is 2.66 km. The car goes once around the track in 200 s. What is the magnitude of the centripetal acceleration of the car?

    asked on January 26, 2017
  52. Algebra 2

    What is the relative maximum and minimum of the function? f(x) = 2x^3 + x^2 -11x A - The realative maximum is at (-1.53,8.3) and the realative minimum is at (1.2,-12.01) B - The realative maximum is at (-1.53,12.01)and the realative minimum is at (1.2,

    asked on January 25, 2017
  53. Chemistry

    How many moles of carbon are in a 28.0g sample? I have no idea where to start

    asked on January 24, 2017
  54. Chem

    Consider the following generic equation: 3A + B ---> 2C + D 2.0 mol A and 1.0 mol B react to form 1.0 mol C. What is the percent yield of this reaction? Please help! thanks!

    asked on January 22, 2017
  55. physics

    A 3.67-g bullet, traveling at a speed of 484 m/s, strikes the wooden block of a ballistic pendulum, such as that in Figure 7.14. The block has a mass of 186 g. (a) Find the speed of the bullet/block combination immediately after the collision. (b) How high

    asked on January 19, 2017
  56. physics

    After skiding down a snow-covered hill on an inner tube, Ashley is coasting across a level snowfield at a constant velocity of +2.5 m/s. Miranda runs after her at a velocity of +4.7 m/s and hops on the inner tube. How fast do the two of them slide across

    asked on January 19, 2017
  57. physics

    A two-stage rocket moves in space at a constant velocity of +4660 m/s. The two stages are then separated by a small explosive charge placed between them. Immediately after the explosion the velocity of the 1240-kg upper stage is +5570 m/s. What is the

    asked on January 19, 2017
  58. physics

    A 0.540-kg ball is dropped from rest at a point 2.30 m above the floor. The ball rebounds straight upward to a height of 1.10 m. Taking the negative direction to be downward, what is the impulse of the net force applied to the ball during the collision

    asked on January 19, 2017
  59. physics

    A stream of water strikes a stationary turbine blade horizontally, as the drawing illustrates. The incident water stream has a velocity of +16.0 m/s, while the exiting water stream has a velocity of -16.0 m/s. The mass of water per second that strikes the

    asked on January 19, 2017
  60. physics

    Two particles are moving along the x axis. Particle 1 has a mass m1 and a velocity v1 = +4.3 m/s. Particle 2 has a mass m2 and a velocity v2 = -6.3 m/s. The velocity of the center of mass of these two particles is zero. In other words, the center of mass

    asked on January 19, 2017
  61. physics

    The drawing shows three particles that are moving with different velocities. Two of the particles have mass m, and the third has a mass 2m. The third particle has a velocity of v3 = +5.1 m/s. At the instant shown, the center of mass (cm) of the three

    asked on January 19, 2017
  62. physics

    Four very thin rods, each 13 m long, are joined to form a square, as part (a) of the drawing shows. The center of mass of the square is located at the coordinate origin. The rod on the right is then removed, as shown in part (b) of the drawing. What are

    asked on January 19, 2017
  63. physics

    A high-jumper, having just cleared the bar, lands on an air mattress and comes to rest. Had she landed directly on the hard ground, her stopping time would have been much shorter. Using the impulse-momentum theorem as your guide, determine which one of the

    asked on January 17, 2017
  64. physics

    A 2.9-kg cart is rolling along a frictionless, horizontal track towards a 1.5-kg cart that is held initially at rest. The carts are loaded with strong magnets that cause them to attract one another. Thus, the speed of each cart increases. At a certain

    asked on January 17, 2017
  65. physics

    In a science fiction novel two enemies, Bonzo and Ender, are fighting in outer spce. From stationary positions, they push against each other. Bonzo flies off with a velocity of +1.7 m/s, while Ender recoils with a velocity of -3.3 m/s. Determine the

    asked on January 17, 2017
  66. physics

    Two arrows are fired simultaneously with the same speed of 30.0 m/s. Each arrow has a mass of 0.100 kg. One is fired due east and the other due south. What is the magnitude of the total momentum of this two-arrow system?

    asked on January 17, 2017
  67. physics

    A 53.8-kg skater is standing at rest in front of a wall. By pushing against the wall she propels herself backward with a velocity of -1.33 m/s. Her hands are in contact with the wall for 0.960 s. Ignore friction and wind resistance. Find the average force

    asked on January 17, 2017
  68. physics

    The hail comes straight down at a mass rate of m/Δt=0.0690 kg/s and an initial velocity of v0= -15.0 m/s. Suppose that the hail described there bounces off the roof of the car with a velocity of +14.0 m/s. Ignoring the weight of the hailstones, calculate

    asked on January 17, 2017
  69. physics

    A car, starting from rest, accelerates in the +x direction as in the figure. It has a mass of 1.10 × 103 kg and maintains an acceleration of +4.40 m/s2 for 2.60 s. Assume that a single horizontal force (not shown) accelerates the vehicle. Determine the

    asked on January 12, 2017
  70. physics

    A 45-kg girl is bouncing on a trampoline. During a certain interval after leaving the surface of the trampoline, her kinetic energy decreases to 210 J from 400 J. How high does she rise during this interval? Neglect air resistance.

    asked on January 12, 2017
  71. physics

    A 64.2-kg skateboarder starts out with a speed of 2.21 m/s. He does 98.0 J of work on himself by pushing with his feet against the ground. In addition, friction does -276 J of work on him. In both cases, the forces doing the work are non-conservative. The

    asked on January 12, 2017
  72. physics

    A 1450-kg submarine rises straight up towards the surface. Seawater exerts both an upward buoyant force of 16890 N on the submarine, as well as a downward resistive force of 1010 N. What is the submarine's acceleration?

    asked on January 11, 2017
  73. physics

    A worker stands still on a roof sloped at an angle of 43° above the horizontal. He is prevented from slipping by a static frictional force of 520 N. Find the mass of the worker.

    asked on January 11, 2017
  74. physics

    Part (a) of the drawing shows a bucket of water suspended from the pulley of a well; the tension in the rope is 56.0 N. Part (b) shows the same bucket of water being pulled up from the well at a constant velocity. What is the tension in the rope in part

    asked on January 11, 2017
  75. physics

    The drawing shows a wire tooth brace used by orthodontists. The top-most tooth is protruding slightly, and the tension in the wire exerts two forces,  and , on this tooth in order to bring it back into alignment. If the forces have the same magnitude

    asked on January 11, 2017
  76. physics

    Three forces act on a moving object. One force has a magnitude of 76.5 N and is directed due north. Another has a magnitude of 46.3 N and is directed due west. What must be (a) the magnitude and (b) the direction of the third force, such that the

    asked on January 11, 2017
  77. College Physics

    The space probe Deep Space 1 was launched on October 24, 1998. Its mass was 474 kg. The goal of the mission was to test a new kind of engine called an ion propulsion drive. This engine generated only a weak thrust, but it could do so over long periods of

    asked on January 11, 2017
  78. physics

    Only two forces act on an object (mass=3.19 kg), as in the drawing. Find (a) the magnitude and (b) the direction (relative to the x axis) of the acceleration of the object.

    asked on January 8, 2017
  79. physics

    An apple crate with a weight of 225 N accelerates along a frictionless surface as the crate is pulled with a force of 14.5 N as shown in the drawing. What is the horizontal acceleration of the crate?

    asked on January 8, 2017
  80. physics

    A mountain climber, in the process of crossing between two cliffs by a rope, pauses to rest. She weighs 520 N. As the drawing shows, she is closer to the left cliff than to the right cliff, with the result that the tensions in the left and right sides of

    asked on January 8, 2017
  81. math

    The length of a rectangle is 7 units and its width is 5 units. What is the approximate length of the diagonal of the rectangle? A. 4.9 units B. 6 units C. 8.6 units D. 9 units

    asked on December 16, 2016
  82. math

    i need help with a problem wanting me to explain the differences between silver and gold using the terms atom and elements

    asked on November 30, 2016
  83. Biochemistry

    A signaling protein with both a SH2 and a SH3 domain binds to the phosphorylated form of its target protein with a Kd of 0.23 nM. The affinity of the SH3 domain by itself is 41 uM and the phosphotyrosine contact with the SH2 domain is responsible for 22

    asked on November 28, 2016
  84. Physics

    Consider two fly wheels labeled A and B both of which are spinning with the same angular velocity. Each flywheel consists of two small heavy spheres connected by very light rods to a light axis. Flywheel A has spheres of mass 2m, each a distance R from the

    asked on November 10, 2016
  85. Math

    which of these prices is lower than 5 for $3.00

    asked on November 7, 2016
  86. Geography

    Why did the neolithic agricultural revolution mark a turning point in history?

    asked on November 2, 2016
  87. Physics

    The 500 kg video display will be raised to its position 20 m above the arena floor by a motorized winch powered by a 12 volt battery. If the battery capacity is 100 A-hr and the system is 100% efficient, how many times could the display be lifted into

    asked on October 14, 2016
  88. Calculus

    Find an equation of the tangent line to the graph of f at the given point. f(x) = x + (4/x), (4,5) I tried using the limit process a lot, but it didn't quite work. If possible, please use the limit process. Thanks a lot to whoever answers this question.

    asked on September 27, 2016
  89. Chemistry

    Water drips from a faucet into a flask at the rate of two drops every 5 seconds. A milliter of water is 20 drops. What volume of water, in liters, will be collected in 2.5 hours.

    asked on September 26, 2016
  90. Geometry

    Triangle ABC is given by the points A(1,1), B(3,2), C(2,3). Consider each rule of transformation. Does the rule result in an image with points A'(2,2), B'(6,3), and C'(4,4). (x,y) transforms into (x,y+1) y/n (x,y) transforms into (2x,2y) y/n (x,y)

    asked on September 22, 2016
  91. Geometry

    For two angles,

    asked on September 22, 2016
  92. Math

    A bag contains 7 white, 15 blue, 14 red, 10 yellow, and 4 green marbles. What is the probability of selecting a white marble first and a green marble second?

    asked on September 19, 2016
  93. Algebra

    1+n ____ =4 4

    asked on September 10, 2016
  94. Alg 1

    To earn a B in your Algebra class, you must achieve an unrounded test average between 84 and 86 (inconclusive). You scored 86,85, and 80 on the first three tests of the grading period. What possible scores can you earn on the fourth and final test to earn

    asked on September 7, 2016
  95. math

    Four friends shared a candy bar. The first friend ate 1/4 of the candy bar, the second friend ate 1/3 of the candy bar, and the third friend ate 1/6 of the candy bar. How much of the candy bar did the fourth friend eat? (Leave your answer as a fraction in

    asked on September 6, 2016

    Runner A is initially 5.3 km west of a flagpole and is running with a constant velocity of 8.1 km/h due east. Runner B is initially 4.7 km east of the flagpole and is running with a constant velocity of 7.8 km/h due west. How far are the runners from the

    asked on August 29, 2016
  97. Science

    In order to analyze the wastewater containing cu2+ from a manufacturing process, 1.0L of water was evaporated to 10.0mL, then placed in a spectrophotometer tube. The absorbance was found to be 0.30. Using your calibration curve, calculate the number of

    asked on June 7, 2016
  98. Econ

    What will result from an increased life expectancy and improved health care?

    asked on May 29, 2016
  99. Math

    Jacob mixes the letters J,K,L,J,K,M,N and P throughly. Without looking Terry draws one letter. Expressed as a fraction, decimal and percentage what is the probability the K will NOT be the letter terry selects A. 1/4,0.25,25% B.3/4,0.75,75% C. 4/3,1.33%,

    asked on May 18, 2016
  100. Physics

    An object of weight W hangs by three ropes as shown above. What is the value of the angle @ if T1 = T2 = W? ____________ \@ @/ T2\ /T1 \__/ |W| a) 15 b) 30 c) 40 d) 45 e) 60

    asked on May 9, 2016


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