Simon

Newest questions and responses by Simon

  1. Maths

    What's the loan + interest for the following 1. 500naira for two weeks at 100naira per week. 2. 2000naira for 3weeks at 1naira in each 10naira per week

    asked on February 3, 2019

  2. Maths

    What's the loan + interest for the following 1. 500naira for two weeks at 100naira per week. 2. 2000naira for 3weeks at 1naira in each 10naira per week

    asked on February 3, 2019

  3. Math

    The road is 7m wide. The corner is in the shape of a quarter of a circle. the inside radius of the corner is 70m. Ali walks rounds the corner on the inside, from A to B. Obi walks round the corner on the outside, from C to D. How much further does obi walk

    asked on June 14, 2018

  4. Math

    an arch of a bridge is made by bending a steel beam into the shape of a semi circle, if the span (diameter) of the arch is 20m, use the value 3.14 for π to find the length of the steel beam to the nearest meter

    asked on June 14, 2018

  5. S.S

    Lesson 10: Unit Test CE 2016 Social Studies 8 B Unit 6: Meeting New Challenges What was a common thread in the fall of communist regimes throughout Eastern Europe? A) a decline in education and health care B) poor economies and demands for more rights C) a

    asked on May 11, 2018

  7. Math

    the area of a parallelogram is 120. of the base is reduced one-half of its original length, and it height is quadrupled, what is the new area 30 60 120 240**

    asked on May 1, 2018

  8. Math

    When might it be more useful to use a graph rather than a function rule? A function rule rather than a graph?

    asked on April 23, 2018

  9. MATh

    Prove by mathematical induction that 1+3+5+7+......+(2n-1)=n²

    asked on March 29, 2018

  10. Math

    Find all real number X Which satisfy the inequality 1/3(X+3)-1>1/5(X+6) Pls I need answer with solution step

    asked on March 29, 2018

  11. Math

    A scientist is trying to determine the identity of an element. It is highly reactive in water and forms an ionic bond with chlorine. It is also very shiny. The element is likely A. From Group 17 ********** B. From Group 1 C. From Group 15 D. A Noble Gas Is

    asked on March 9, 2018

  12. Math

    Solve x^2-6x+9 Using competing the square method

    asked on February 28, 2018

  13. MATH - sequence & series

    Evaluate. Un=(-1)^n n+1/2 Help pls

    asked on February 27, 2018

  14. MATH

    Solve the equation using completing the square method x^2-6x+9 Please I need your solutions

    asked on February 26, 2018

  15. MATH

    Evaluate Un=(-)^n n+1/2

    asked on February 26, 2018

  16. MATH

    Find the value of X if; Log base 10 7+ log base 10(3x+2)-log base 10(2x-1)=1

    asked on February 16, 2018

  18. MATH

    _DE MORGAN'S LAWS_ (a). (A n B)^c = A^c U B^c (b). (A U B)^c = A^c n B^c Please friends I need solutions to this set

    asked on February 15, 2018

  19. Physics

    A force of 9.0N is applied to a body at rest on a smooth horizontal surface. If the body has a mass of 18.0kg and it moves in the direction of the force, find the work done in. a. The first four second. b. The fourth second ? Urgent answers pls

    asked on February 14, 2018

  20. engineering

    How do i work out the LINEAR ACCELERATION (and LINEAR VELOCITY) for a point on the circumference of the FLYWHEEL at its max ROTATIONAL VELOCITY

    asked on February 1, 2018

  21. math

    How do i work out the LINEAR ACCELERATION (and LINEAR VELOCITY) for a point on the circumference of the FLYWHEEL at its max ROTATIONAL VELOCITY.

    asked on February 1, 2018

  22. math

    How do i work out the mass of a flywheel. I am given the density as 7800kg/m3, a 760mm diameter and a 180mm width. Please help

    asked on January 25, 2018

  23. engineering

    How do i work out the mass of a flywheel. I am given the density as 7800kg/m3, a 760mm diameter and a 180mm width. Please help

    asked on January 25, 2018

  24. science

    How do i work out the mass of a flywheel. I am given the density as 7800kg/m3, a 760mm diameter and a 180mm width. Please help

    asked on January 25, 2018

  25. HVAC

    Two HVAC technicians are discussing the properties of water.Technician A says that if the pressure of water is raised,the boiling point will decrease.Technician B says that placing water in a vacuum will cause its boiling point to increase.Which of the

    asked on December 13, 2017

  26. HVAC

    two HVAC technician are discussing units of energy.Technician A says that a BTU is defined as the work performed by a force of 1 neton[N] moving and object over a distance of 1 meter[M].Technician B says that that if you have a 60 watt light bulb that has

    asked on December 13, 2017

  27. math

    A Gauge pressure of 30 psig is equivalent to an absolute pressure of 15.3 psia 30 psia 44.7 psia 64.7 psia

    asked on December 13, 2017

  29. math

    A gas has weight of 5 pounds and a volume of 100 cubic feet,What is the specific volume of the gas? 0.05ft/sup>/lb 5ft3/lb 20ft3/lb 100ft3/lb

    asked on December 13, 2017

  30. math

    A gauge pressure of 30 psig is equivalent to an absolute pressure of______. 15.3 psia 30 psia 44.7 psia 64.7 psia

    asked on December 13, 2017

  31. math

    An electric motor that rated at 5 horse power can produce _____ in equivalent work. 0.007 watts 5 watts 17.05 watts 3730 watts

    asked on December 13, 2017

  32. HVAC

    the density of a solid or liquid material divided by the density of water is called the_____ of the material. latent heat specific volume critical point specific gravity

    asked on December 13, 2017

  33. ashworth

    a gas has weight of 5 pounds and a volume of 100 cubic feet.What is the specific volume of this gas? 0.05 ft3/lb 5ft3/lb 20ft3

    asked on December 13, 2017

  34. chemistry

    The heat of combustion for 1 mole of carbon to carbon dioxide is -410 kJ. How many kJ of heat would be liberated from the complete combustion of 60.0 g of carbon?

    asked on November 26, 2017

  35. Physics

    (a)-A fossilised tree was tested and contains 10 grams of Carbon-14. Given that there was 12 grams of Carbon-14 present when it died, determine the age of the fossil? Half life of Carbon-14 is 5700 years. (b)How much Carbon-14 will be present in the sample

    asked on April 24, 2017

  36. math

    Bernie has $16000 invested, part at 3% and the remainder at 5%. If the yearly interest on each investment is the same, how much interest does he receive each year?

    asked on April 17, 2017

  37. Physics

    A 120kg fridge requires 610N to just move it across the floor, if the coefficient of kinetic friction is 0.2, determine the force required to continue pushing it s constant velocity.

    asked on April 16, 2017

  38. Dynamics

    A car is traveling at a speed of 80 km/h when the brakes are suddenly applied, causing a constant deceleration of 3.24 m/s2. Determine the time required to stop the car and the distance traveled before stopping

    asked on November 16, 2016

  40. physics

    Acceleration of a Mass in a Pulley System Block 1 of mass m1 slides on a frictionless plane inclined at angle θ with respect to the horizontal. One end of a massless inextensible string is attached to block 1. The string is wound around a frictionless

    asked on November 15, 2016

  41. intermediate maths

    James is six times as old as his granddaughter, Louise. In two years time he will only be five times as old as Louise. How old are James and Louise now?

    asked on November 13, 2016

  42. physics

    A car of mass m is going around a circular turn of radius R, which is banked at an angle β with respect to the ground. Assume there is friction between the wheels and the road. Let μs be the coefficient of static friction and g the magnitude of the

    asked on November 1, 2016

  43. Maths

    Hey! I have this problem - i'm currently working on Quadratics at school, and i got homework. One of the questions is 18^2+2px+32. I have to find the Value of P, the answer i got is P>+-24. Can someone please confirm this is correct?

    asked on September 24, 2016

  44. Maths

    What is the next number in the series? 0 1 5 14 30 __

    asked on May 29, 2016

  45. Maths

    Amy and Ashley bike along the same trail. Amy bikes the entire trail at a speed of 20 mph and Ashley bikes it at a speed of 15 mph. Amy finishes biking the entire trail 8 minutes before Ashley. How many miles long is the bike trail?

    asked on May 28, 2016

  46. Algebra

    Ann, Matt and Zack are working for a cleaning company. Together, they can clean a house in 2 hours. If Ann does the job alone she can finish it in 5 hours. If Matt does the job alone he can finish it in 6 hours. How long will it take Ann and Zack together

    asked on May 28, 2016

  47. algebra 1

    The function H(t) = −16t^2 + 90t + 50 shows the height H(t), in feet, of a projectile after t seconds. A second object moves in the air along a path represented by g(t) = 28 + 48.8t, where g(t) is the height, in feet, of the object from the ground at

    asked on May 19, 2016

  48. algebra 1

    The function H(t) = −16t^2 + 90t + 50 shows the height H(t), in feet, of a projectile after t seconds. A second object moves in the air along a path represented by g(t) = 28 + 48.8t, where g(t) is the height, in feet, of the object from the ground at

    asked on May 19, 2016

  49. life orientation

    Design a newspaper article to warn people against engaging in fraud and corruption

    asked on May 11, 2016

  51. Math - Normal and Binomial Distribution

    An unbiased dice is thrown 10 times. Let X be the number of sixes obtained. Find: C) P(X

    asked on May 10, 2016

  52. science

    How does graphite burn in air to give carbondioxide

    asked on May 8, 2016

  53. Physics

    A ball of mass m1=3kg moving south at 6m/s collides with a ball of mass m2=2kg initially at rest. The incoming ball is deflected in the direction 60 degrees S of W and the target ball moves off at 25 degrees E of S. Consider that the Collison happens on a

    asked on May 1, 2016

  54. Physics

    3)-A 9-kg block is held by a pulley system shown in fig. What force must the person exert in the following cases: a) to hold the block at rest. b) to lower it at 2m/s. c) to raise it with an acceleration of 0.5 m/s2? Ignore the mass of small pulley.

    asked on March 21, 2016

  55. PHYSICS HELP

    3)-A 9-kg block is held by a pulley system shown in fig. What force must the person exert in the following cases: a) to hold the block at rest. b) to lower it at 2m/s. c) to raise it with an acceleration of 0.5 m/s2? Ignore the mass of small pulley.

    asked on March 21, 2016

  56. PHYSICSS HELP

    3)-A 9-kg block is held by a pulley system shown in fig. What force must the person exert in the following cases: a) to hold the block at rest. b) to lower it at 2m/s. c) to raise it with an acceleration of 0.5 m/s2? Ignore the mass of small pulley.

    asked on March 21, 2016

  57. Algebra 1

    A contestant on a quiz show gets 50 points for every correct answer and loses 100 points for each incorrect answer. After answering 24 questions, the contestant has 300 points. How many questions has the contestant answered correctly? Incorrectly? Use

    asked on January 30, 2016

  58. Math

    Could someone explain the concept of "magic numbers" in reference to baseball as an indication of how close a team is to clinching the division title and how to calculate it?

    asked on January 16, 2016

  59. Edu tech

    Can you please check this Probability can be used to determine the likelihood of specific ________. A:games B:occurrences C:questions D:opportunites D is my answer

    asked on October 1, 2015

  60. Science

    Why is the use of the inquiry process a practical way to approach science? 5 points My Answer: The inquiry process is a practical way to approach science because the inquiry process begins by asking questions and moving on from there. In science it is

    asked on September 28, 2015

  62. physics

    A student observes an airplane fly overhead with a constant velocity parallel to the x-axis at a height of 7.60 × 103 m. At time t = 0 the airplane is directly above the student, the vector P~ o = 7.60 × 103ˆj m describes the position on the airplane

    asked on September 21, 2015

  63. mathematics

    Two towns T and S are 300km apart, two buses A and B started from town T at the same time moving towards town S, Bus B traveling at speed 10km/h greater than bus A and reached S 1 1/4 hours earlier. Find the average speed of A? How far was Bus A from T

    asked on September 10, 2015

  64. Physics

    A descent vehicle landing on the moon has a vertical velocity toward the surface of the moon of 36.8 m/s. At the same time, it has a horizontal velocity of 52.6 m/s. At what speed does the vehicle move along its descent path? Answer in units of m/s. At

    asked on September 9, 2015

  65. English

    Writing Skills: A Research Project, you are asked to compose an essay responding to ONE of the prompts offered. At its base, this is a personal essay, but you must incorporate research that will support your views and opinions. The core of this essay must

    asked on July 16, 2015

  66. language arts

    which element is shared in both zoos joys or jails and why do we need zoos?

    asked on May 6, 2015

  67. Math

    Hi I'm having a bit of trouble if anyone is able to help, thanks! Using the substitution u =1-2t^2, show that A = -1/4 ∫_1^(-7)▒e^u du

    asked on March 21, 2015

  68. math

    about powers and roots

    asked on February 20, 2015

  69. math

    The dissipation of heat through a composite material of width w centimetres can be modelled by the function f(w) = 10/w - 0.77ln(w) – 3.2 You are required to find the width of material that will prevent any heat dissipation. - I understand f(w)= 0, but

    asked on February 15, 2015

  70. Physics

    On June 9, 1988, Sergei Bubka broke the world pole-vaulting record for the 8th time in four years by attaining a height of 6.14 m. How long did it take Bubka to return to the ground from the highest part of his vault?

    asked on October 14, 2014

  71. Organic Chem Help

    Can someone explain how crystallization works to produce a product that is purer than the input material. Thank you!

    asked on September 23, 2014

  73. Math

    the larger angles of a rhombus are twice the smaller angle of the rhombus. if the shorter diagonal is 20, find the perimeter of the rhombus

    asked on December 10, 2013

  74. Hypothesis Test

    A test of hypothesis is performed to determine whether the proportion of Montrealers (population 1) who want the decriminalization of marijuana is greater than the proportion of Torontonians (population 2) who want decriminalization of marijuana. A random

    asked on November 16, 2013

  75. American history

    The religion that is sometimes called Central America is actually apart of what continent.?

    asked on September 23, 2013

  76. MGMT303

    1. (TCO 2) Organizations have both an internal and an external environment. Describe the general environment and give at least one specific example of each dimension, other than the examples given in the text and in the lectures

    asked on August 29, 2013

  77. physics

    A star rotates in a circular orbit about the center of its galaxy. The radius of the orbit is 4.4 x 1020 m, and the angular speed of the star is 7.3 x 10-15 rad/s. How long (in years) does it take for the star to make one revolution around the center?

    asked on July 16, 2013

  78. physics

    In the figure the man hanging upside down is holding a partner who weighs 535 N. Assume that the partner moves on a circle that has a radius of 6.50 m. At a swinging speed of 3.75 m/s, what force must the man apply to his partner in the straight-down

    asked on July 10, 2013

  79. physics

    A 17-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 29 N. Starting from rest, the sled attains a speed of 2.1 m/s in 9.6 m. Find the coefficient of kinetic friction between the runners of the sled and the snow.

    asked on July 8, 2013

  80. ECONOMICS

    WHAT ARE WELFARE PAYEMENTS OR CONSUMERS SUBSIDIES

    asked on May 19, 2013

  81. math

    A stadium is divided into 8 sections. Each section has 72 rows and each row contains 25 seats. How many seats are in the stadium.

    asked on May 2, 2013

  82. Pharmacy

    You have a 10 percent solution and your wanting to treat a patient weighing 4.5 pounds and the dose is 5mg/kg/ml. What is the dose?

    asked on May 2, 2013

  84. Calculus

    Use the limit process to find the area of the region between the graph of the function and the x-axis over the indicated interval. Sketch the region. y=2x-x^(3), [1,3]

    asked on April 26, 2013

  85. Calculus

    On the moon, the acceleration due to gravity is -1.6 meters per second per second. A stone is dropped from a cliff on the moon and hits hits the surface of the moon 20 seconds later. How far did it fall? What was its velocity at impact?

    asked on April 26, 2013

  86. Life orientations

    Discuss 5 impacts due to lack of infrastructure

    asked on April 17, 2013

  87. Life orientation

    Five practices that are in Contravention of the Basic conditions of employment Act

    asked on March 10, 2013

  88. math

    a box contain 60 oranges.3/5 of the oranges were equally shared among 4 boys.how many oranges did each boy received.

    asked on February 9, 2013

  89. Math

    In evening my test plz help me to solve it A room length 3m,20m wide and 6m height. Find the floor is to be tiled.if each tile measures 60cm*50cm,find the no. Of tiles required.

    asked on February 6, 2013

  90. Math

    The cross section of a pipe of length 49cm.the thicknes of the pipe is 1cm4mm and the outer diameter is 30cm.find the volume of the pipe.

    asked on February 6, 2013

  91. Math

    Water is poured into cuboidal container at the rate of 80liter per min. If the volume of container is 144m^3,find the no. Of hours it takes to fill the reservior.

    asked on February 5, 2013

  92. Math

    A cylindrical tube is open at both ends.the internal diameter tube 10.4cm and its length is 25cm. If the thickness of the tube 8mm everywhere,find the total surface of area of the tube.

    asked on February 5, 2013

  93. Math

    A box measures 60cm*52cm*40cm.find the area of the cardboards required to make 280 such boxes.

    asked on February 5, 2013

  95. Math

    The radii of two cylinders 3:2 and height 7:4.find the ratios of their curved surface area.

    asked on February 5, 2013

  96. Math

    This is math qustn plz help me to solve it bcz tmrw my test soreply soon as soon A box measures 60cm*52cm*40cm.find the area of the cardboards required to make 280 such boxes.

    asked on January 31, 2013

  97. Math

    This is math qustn plz help me to solve it bcz tmrw my test soreply soon as soon A box measures 60cm*52cm*40cm.find the area of the cardboards required to make 280 such boxes.

    asked on January 31, 2013

  98. chemistry

    Elemental zinc will react with acid to evolve hydrogen gas. This is a redox reaction. Write a balanced molecular equation for the reaction of zinc and hydrochloric acid, showing the coefficents and the phases of all reactants and products. Below is an

    asked on January 16, 2013

  99. chem

    I2 + 5 Cl2 + 6 H2O 2 HIO3 + 10 HCl What is the reducing agent? In your answer give the element symbol and oxidation state.

    asked on January 15, 2013

  100. chemistry

    balance: Al2(CO3)3 --> Al2O3 + CO2 i don't know how to do the reactant side so i can figure out the product side...

    asked on January 9, 2013

  101. chemistry HWK MAKES NO SENSE

    balance: H3PO4 + Mg(OH)2 → Mg3(PO4)2 + H2O

    asked on January 7, 2013

  102. chem

    what is the number of moles of manganese (II) iodide in a sample whose mass is 650 g?

    asked on December 18, 2012

  103. physics

    A 500N force is applied to a 25 kg block and accelerates it at 15 m/s^2. What is the force of friction?

    asked on November 26, 2012

  104. science

    A reaction took place between a magnesium and florine in a large empty container if attraction and repulsive between these atom are equal at a distance of 0.001*10^-10m, calculate the couloumbic force between two atoms.

    asked on October 24, 2012

  106. Chemistry (Insulated Vessel, temperature and vol.)

    Insulated vessel has two compartments separated by a membrane. One side is 1 kg of steam at 400 C and 200 bar. The other side is evacuated. The membrane ruptures filling the entire volume. The final pressure is 100 bar. Determine the final temperature of

    asked on October 2, 2012

  107. Chemistry (Internal Energy)

    5 kg of steam contained within a piston-cylinder assembly undergoes an expansion from state 1, where the specific internal energy U(1) is = 2710 [kJ/kg] to state 2, where U(2) = 2660 [kJ/kg]. During the process, there is heat transfer to the steam with a

    asked on October 2, 2012

  108. physics

    Calculate the power required of a 1190 kg car as it climbs a 11° hill at a steady 103 km h-1. The total friction and air resistance is 700 N. Answer in kW, to the nearest whole number.

    asked on September 29, 2012

  109. physics

    A skier travelling at 14 m s-1 reaches the foot of a steady upward 14° incline and glides 21 m along this slope before coming to rest. What was the average coefficient of friction?

    asked on September 29, 2012

  110. physics

    Total mechanical energy of a flying rubber ball is 2000 J. It has a velocity of 151 ms-1 and is 3.1 m above the ground. Find the mass of the ball. (2dp)

    asked on September 29, 2012

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