Questions Asked on
July 5, 2019

  1. Physics

    if 100cm3 of O2 diffused in 4 seconds and 50cm3 of gas Y diffuse in 3 seconds, calculate the relative molecular mass of gas Y?

  2. Calculus

    Which of the following functions grows the slowest? j(t)=1/4 ln(t^200) a(t)=t^5/2 i(t)=ln(t^100) g(t)=3t^2-t b(t)=t^4-3t+9

  3. Child,family and community

    5. Which of the following best characterizes parents with independence goals? A. They coddle children all the time. B. They usually expect toddlers to feed themselves. C. They downplay individuality. D. They usually sleep with their children and seldom

  4. math

    A square with side length 5.5 mm is increased by a factor of 11. What will be the perimeter of the square after dilation?

  5. Physics

    In a laboratory experiment, a calorimeter is used to find the specific heat of an unknown metal. 100.0 grams of dry metal shot are placed in a cup and heated to a temperature of 95 °C. The calorimeter is partially filled with 150 g of water at 20.0 °C.

  6. Math

    ? Which of the following statements best describes the graph of-5x + 2y O It is a curve joining the points -5x-2y=1?

  7. Physics

    How much heat (in joules) is required to boil 250 grams of water that starts at 25C completely to steam? Use 4.2 J/gC for the specific heat

  8. History

    Which accurately describes the theology of the Catholic Church during the middle ages? select all that apply A. Catholics could rise to the kingdom of heaven by faithfully following the seven sacraments B. Kosher dietary laws determine that foods Catholics

  9. math

    Express $0.\overline{21}_3$ as a base 10 fraction in reduced form.

  10. Maths

    A tennis ball is projected vertically upwards from the top of a 55 m cliff by the sea. Its height from the point of projection, s m, ts later is given by s = 50t - 5t^2 a. when does the tennis ball hit the sea? b. find the impact velocity of the ball as it

  11. Child, family and comunity

    12. Many children in the stage of industry demonstrate the urge to A. master skills. B. test behavioral boundaries. C. depend on their parents. D. play more than learn. My answer is A.

  12. Physics

    We often use a spoon to cool coffee by stirring. Some of the heat is conducted from the coffee to the air by this method, but the spoon itself will cool the coffee a little. If a 12 gram aluminum teaspoon at 22 o C is placed in 175 ml of water (coffee's

  13. English

    What did Carl Sagan believe was proven by the disaster at Chernobyl? A) there can be no positive use for nuclear power. B) a move toward nationalism is a waste of time C) technology when used careless is progressively more dangerous D ) there is always a

  14. English

    Select the vocabulary word that best completes the sentence . The accident in the lab was bad enough on its own; you don’t need to (blank) the details whne you retell the incident . A) correlate B) exhibit C) score D) exaggerate Is it A?

  15. Geography

    If on 80°W time is 4:00pm what will be time on 120°E.

  16. Science

    A block of mass 15kg rest on a horizontal floor ( coefficient of friction is 0.4) (A) what force is required just to make de block move when (i) pulling horizontally (ii) pulling at an angle of 60 to the horizontal (2) if the block is pulled with

  17. math

    how could you have 0.87$ with the least number

  18. Physics

    Physical therapists know as you soak tired muscles in a hot tub, the water will cool down as you heat up. If a 68.1 person at 37.1 oC immerses in 50.2 kg of water at 40.5o C, the equilibrium temperature is 38.7 oC. What is the specific heat of the person?

  19. Science

    A stone with a mass of 6kg is thrown vertically upwards from the top of the building 35m high with a starting velocity 20m/s . Determine the time it will take the stone to reach it's maximum height.

  20. Math

    What does the line 5x + 2y = 8 look like?

  21. Math

    For a certain function, f'(x)=3+x. For what value of x does the function have a stationary point? What type of stationary point is it? I've found x to be -3, but how do I determine the type of stationary point?

  22. psychology

    types of pseudu_psychologies

  23. math

    the front wheels of a truck supports 8 kN and its rear wheels support 14 kN. The axles are 4m apart. How far from the front axle is the center of gravity of the truck

  24. Maths

    For what value of x will the function f(x) = -3(x - 10)(x - 4) have a maximum value? Find the maximum value.?

  25. Math

    a person takes 10k gold bracelet weighing 80g to a gold buyer. the gold buyer offers them $1000 cash. calculate the value of the bracelet and determine if the person is losing money. assume the gold price $1400/oz. what is the answer?

  26. Child ,family and community

    How do adults contribute to children's sense of initiative? A. By punishing mistakes, so the child learns to avoid them B. By keeping them from trying new things because they might do it wrong C. By encouraging them to explore, try things out, and solve

  27. Child, family and community

    7. Most children who are six or seven years old are beginning which of Erikson's stages of development? A. Inferiority B. Guilt C. Basic trust D. Industry My answer is D.

  28. World History

    I have to write a 5 and a half page research paper and I decided for my topic to be Alexander the Great. Could someone read my thesis statement and tell me what they think? Thanks. Alexander the Great is one of the most extraordinary and unforgettable

  29. child, family and communty

    14. What does the acronym GRIT mean? A. Goal, Risk, Increase, and Train B. Growth, Resilience, Instinct, and Tenacity C. Goal, Reduction, Impetus, and Target D. Geniality, Restriction, Impulse, and Thrust My answer is B.