# Questions Asked onOctober 5, 2012

1. ## time and stress management

relaxation is a state of (a)low arousal (b)high arousal (c)increased blood pressure (d)rapid thought processes my answer is a to analyze exactly what to do with your time,you need to (a)write down everything that you do in a time inventory (b)videotape

1. Which of these numbers can be classified as both real and irrational? 5.858585858 63.4 square root 21 square root 36 2. Which is both a real number and an integer? 23 1 over 4 square root 27 3.402538 3. Which of these numbers is classified as both real

3. ## chemistry

at high temperatures, ammonia decomposes to N2 and H2. 2 NH3(g)--> N2 (g) + 3H2(g) Delta H for the reaction is positive and delta S is positive. Estimate the temperature at which this reaction becomes spontaneous

4. ## chem

Write the complete ionic equation for Cu(NO3(aq)+K2S(aq)and namd write the formula for the spectator ions in this reaction? This is what I got pls. check it: complete ionic equation: Cu^19aq)+K^1(aq)+S^-2(aq)=K^1(aq)+NO3^-1(aq)+Cu2S(s) net ionic equation:

5. ## Physics

To demonstrate standing waves, one end of a string is attached to a tuning fork with frequency 120 Hz. The other end of the string passes over a pulley and is connected to a suspended mass M, as shown. The value of M is such that the standing wave pattern

6. ## physics

If motion of a particle of mass (m) is given by y=ut+1/2gt^2 (square).find force acting on it

7. ## chemistry

calculate the standard molar entropy change for the combustion of methane gas using S naught values from standard thermodynamic tables. Assume that liquid water is one of the products.

8. ## ap

The reaction 2Na+ + 2Cl− ! 2Na + Cl2 is indicative of ? cell; the sign of the anode is ? ; and ? forms at the cathode. 1. an electrolytic; negative; Na+ 2. a voltaic; positive; Na 3. an electrolytic; positive; Na 4. an electrolytic; positive; Cl2 5. a

9. ## chemistry

Acrylonitrile (c3H3N ) is the starting material for many synthetic carpets and fabrics. It is produced by the? following reaction: 2C3H6 (g) + 2NH3 (g) + 3O2 (G0 - 2C3H3N (g) + 6H2O (g) If 15.0 g C3H6, 10.0 g 02, and 5.00 g Nh3 are reacted, what mass of

10. ## Chemistry

It asks:For each of the following atomic numbers, use the periodic table to write the formula (including the charge) for the simple ion that the element is most likely to form in ionic compounds. For example, they gave 56, and the answer is Ba(2+), but I

11. ## chemistry

What two conditions necessary for molecules to be polar? Her's my answer pls check. First, at least one covalent bond in the molecule has to be a polar covalent bond. For a bond to be polar, there must be a difference in the electronegativities of the two

12. ## physics

how long will it take a 1750-watts motor to a lift a 285-kg piano to a sixth storey window 1.6 meters above

13. ## ap

Sodium, potassium, and rubidium are good 1. oxidizing agents. 2. reducing agents. 3. bases.

14. ## Sociology

Compare and contrast the theories of Daniel Levinson , Irene Frieze, and Esther Sales concerning adult development.

15. ## chemistry

The formulas for ethane, ethene and ethyne are C2H6, C2H4, and C2H2 respectively. Rank this chemicals 1,2,3 (highest)in terms of strength of IMF and explain the structures of the three molecules. I rank these three based on the bond length so I got C2H2,

16. ## ap

What is a poor conductor of electricity? 1. mercury 2. molten NaCl 3. copper 4. potassium 5. sulfur

17. ## chemistry

When will hydrogen bonding occur?Give an example of liquid other than H2O in which this type of force is important. In order for a hydrogen bond to occur there must be both a hydrogen donor and an acceptor present. The donor in a hydrogen bond is the atom

18. ## Kinematics

A 55.0kg box rests on a horizontal surface. The coefficient of static friction between the box and the surface is .300. What horizontal force must be applied to the box for it to start sliding along the surface? Please write out the solution. I am getting

19. ## physics

A car is equipped with a bumper that is designed to absorb collisions. The bumper is mounted to the car using pieces of flexible tubing. The car is traveling at 1.5 m/s when it collides with a rigid black wall. If the wall exerts an average force of 44.1

20. ## math

A rectangle has an area of 15 m2. Find a function that models its perimeter P in terms of the length x of one of its sides.

21. ## Chemistry

In a titration of 35.00 mL of 0.737 M S, __________ mL of a 0.827 M KOH solution is required for neutralization.

22. ## chemistry

Water has a bent molecular shape, but what if water had a linear molecular shape would the molecule be polar or non-polar? Explain This is what I know pls correct me if I'm wrong. It would be nonpolar because it is symmetric so the charge is equally

23. ## Chemistry

Muriatic acid is the common name of industrial-grade hydrochloric acid (HCl). One of its uses is to clean or etch concrete in preparation for sealing or painting. It is typically sold in 5.00 gallon buckets, with a concentration of 11.7 M. a.What volume of

24. ## Physics

A 2000 kg car is slowed down uniformly from 18.0 m/s to 5.00 m/s in 4.20 s. (a) What average total force acted on the car during that time? (b) How far did the car travel during that time?

25. ## Physics

4. A football player passes the ball. The ball leaves his hand and is caught 1.7 seconds later by a receiver 30 meters away. (You may assume the ball was caught at the same height from which it was thrown.) a) What is the vertical component of the velocity

144. ## science

what is the control in the following experiment - which brand of popcorn has the least amount of un-popped kernels after 3 minutes?

145. ## Calculus

Find the derivative of y=15x^7+7^x+22

146. ## chemistry

colorless vinegar added to purple cabbage juice turns pink What is the reason behind and why is it considered a chemical change?

147. ## science

please tell me if you agree with the following: Which Brand of popcorn hs the least amount of unpooped kernels after 3 minutes. Brand 1 has 1 Brand 2 has 15 Brand 3 has 16 Brand 4 has 5 Brand 5 has 25 the answer is Brand 1 BUT is the: independent variable

148. ## math

what must be added to each of the following expressions to make it a whole square (i) 4x^2 - 12x + 7 (ii) 4x^2 - 20x + 20

149. ## English ms. sue

ms. sue yesterday i write story abt independence in third person well i have to write another one in first person and i want to write in nonhuman perspective, which animal I be? or could i be something other than creature, but not human?

150. ## critical thinking/logic

use the direct and the counterexample methods to show that these arguments are invalid? For the counterexample method, display the form used. 1. There could be lightening without thunder. So, there could be thunder without lightening. 2. Nothing its better

151. ## Astronomy

If M is the mass of one body and m is the mass of another body, and their separation is d, then the gravitational force between them is proportional to

152. ## math

Integrate x^2/rootx-1..

153. ## World History

1.What is an example of economic force? 2. What is an example of political force? 3. What is an example of social force?

154. ## Math

_ _ x _ = _ _ _ = _ _ x _ use number 1 - 9 using each each number only once

155. ## chemistry

The following reation has the following standard thermodynamic parameters: delta H= -33.6 kJ/mol delta S= -59.8 J/(mol*K). C(g) + D(g) --> E(g) Calculate the temperature at which the reaction becomes nonspontaneous.

156. ## Physics

A car starts from rest on a curve with a radius of 110m and accelerates at 1.2m/s^2. Through what angle will the car have traveled when the magnitude of its total acceleration is 2.1 m/s^2? Steps please.

157. ## physics

A small fish is dropped by a pelican that is rising steadily at 0.69 m/s. How far below the pelican is the fish after 2.4 s?

158. ## statistics

A school adjustment inventory is administered to boys and girls of primary school.Find out weather two groups differ significantly from each other Number mean Std deviation Boys 100 32 10 girls 100 30 6

159. ## history

In the Battle of _______, a disastrous charge against forces holding Cemetery Ridge led to Confederate defeat A. Cold Harbor B. Vicksburg C. Antietam D. Gettysburg

160. ## history

As ratified in 1870, the _______ Amendment prohibited any state from denying the vote to any male citizen on account of race, color, or previous condition of servitude. A. Thirteenth B. Sixteenth C. Fifteenth D. Fourteenth

161. ## Algebra 2

Find f(x), if f(2b-1)=6b+2

162. ## time and stress management

am example of a long-term goal is (a)getting your hair done at your favorite salon (b)traveling to europe (c)finishing a term paper (d)reading a biography my answer is b which of the following is a direct benifit of practicing relaxation techniques (a)less

163. ## math

On a winter day the temperature at 6 a.m. was -9° F. At 2 p.m. it was 25° F. By how many degrees did the temperature change from morning to afternoon?

What is the plural form of staff? Not sure if it should be staff or staffs. Thank you for helping. Britt