Questions Asked onJuly 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

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.