1. Scince

suggest and explain what happens to the movement of sugar in winter when a tree has no leaves

2. algebra

i'm really confused about if 0.123333... is A) rational number B) irrational number C)integer,rational number D)whole number, integer,rational number can somebody help me please thank you

3. physics

A rocket engine consumes 450 kg of fuel per minute. If the exhaust speed of the ejected fuel is 5.2 km/s, what is the thrust of the rocket?

4. Math

Nine boxes contain cans of different weights. How could you redivide the cans so each box weighs the same? There is 1 box with cans and the box weights ⅓, 1 box weights ⅔, 2 boxes weights 1⅓, 2 boxes weights 2⅔, and 3 boxes weights 3 pounds.

5. math

Given that a­­b = x, evaluate the following a^b+2

Let logb 2=2.217 and logb 3=3.417. Find logb 3b Please walk me through this steo by step.

7. Geometry

parallelogram ABCD: Angle BAC = 35 and angle BCA = 20 How can I find the measure of angle BAD and the measure of angle ABC?

8. CHEMISTRY 122

The spectrophotometer was used to measure the abosrbance of each of a series of [FeSal]+ solutions. A standard curve was constructed by plotting the absorbance vs. concentration (M). The slope and y-intercept were found to be 1517 M-1 and 0.001,

9. Physics

Suppose a straight 1.50 mm -diameter copper wire could just "float" horizontally in air because of the force due to the Earth's magnetic field B, which is horizontal, perpendicular to the wire, and of magnitude 3.0×10−5 T . What current would the wire

10. physics

Water flows at 0.58 m/s through a pipe 11 cm in diameter when the pressure is 450,000 Pa. Determine the water velocity & the pressure in the pipe if it shrinks down to 5 cm in diameter. You can assume that the pipe is horizontal & ρwater = 1000 kg/m3.

11. MATH

Fine the real and imaginary part of 6i/(2-i)²

12. Literacy exam

What is expanded academic ASAP and what does it do

13. physics

The figure below shows a cubical box that has been constructed from uniform metal plate of negligible thickness. The box is open at the top and has edge length L = 39 cm. (a) Find the x coordinate of the center of mass of the box. (b) Find the y coordinate

14. AP Chemistry

The reaction of the molecules to produce ethane is C2H4(g) + H2(g) ÃƒÂ¢Ã¢â‚¬Â Ã¢â‚¬â„¢ C2H6(g). A mechanism for this reaction is shown below: (The figures show how the ethene molecule with two hydrogen molecules attached 'binds' to

15. math

Danny and Erica are 3km apart on a straight road. They set out to walk uniformly at the same time. If they walk in an opposite direction, they will meet after 24 minutes. If they walk in the same direction, Danny will catch up to Erica after 6 hours. Find

16. Calculus

A function has f’’(x) = 10 and has f’(4) = 0 and f(2) = 4. Find f(x)

17. Geometry

What is the area of the circle? This is for Connexus plzzzzzzz help.

18. Calculus

A rectangular prism has a square base and the height of the prism is twice the length of each edge of the base. If the edges of the square base are increasing at a rate of 3 in/min. At what rate is the volume of the rectangular prism increasing when the

20. Chem

Is this correct How many grams of C2H5OH are used up when 6.25 grams of O2 react according to the following equation? C2H5OH + 3O2 → 2CO2 + 3H2O 6.25 grams of O2 6.25 / 32 moles = .195 moles The equation requires 1 mole of C2H5OH for every 3 moles of O2.

21. physics

At the instant a 2.0-kg particle has a velocity of 4.0 m/s in the positive x direction, a 3.0-kg particle has a velocity of 5.0 m/s in the positive y direction. What is the speed of the center of mass of the two-particle system?

22. Algebra

1 supersized cone for \$8 or 4 regular-sized cones for \$5. The large cone is has a radius of 5 inches and a height of 12 inches. Each of the 4 smaller cones have a radius of 2.5 inches and a height of 6 inches. Which holds more ice cream? the 1 big cone? or

23. Algebra

Gina plant a tree of 1m tall when she was in 1st grade, the tree grow 1% every month continuously. How tall will the tree be when Gina graduates?

24. math

Steve is painting every room of his house the same color. For every 3 walls he paints, he needs 1/4 of a can of green paint. How many cans of paint will he need to paint 10 walls?

Uninhibited Growth Model. This is an example problem from the book and need help figuring it out? a) If \$3500 is invested in an account that pays 5% interest compounded continuously, how long will it take to grow to \$7000. b) How much money will the

26. Circuits2

an impedance coil draws an apparent power 50-volt ampere and an active power of 40 watts solve for q factor

27. Math

What is the initial fee and cost per hour to hold a banquet at the Tea Room?

28. calculus

A new car lists for \$16,640 and depreciates by 25% per year. Find its value after the following amounts of time. (Round your answers to the nearest dollar.) 4 years_______ 6 Months________

29. Geometry

rectangle FGHK The length of FH is 9 cm. What is the length of GK? C is the center of the rectangle 4 is the height 4.5 measure from F to C 4.5 from H to C

30. Chemistry

Can someone help me with this? I was using deltarG = deltarH - T deltarS. I found delta H= 62438 j/mol and delta S =. 144.555 j/ mol k Calculate ΔrG for the sublimation of iodine gas at 298 K when the iodine vapor is at a pressure of 0.0500 bar

31. Calculus

Suppose the population of a colony of ants grows at the rate: P’(x) = 1 + 5/sqroot(t+1) If there are 250 ants after 120 hours, what was the population at t=0?

32. English

1. Books are expensice. 1-1. Books in general are expensive. [Is this explanation correct?] 2. The books are expensive. 2-1. The specific books are expensive. [Is this explanation correct?] 3. The books in this library are expensive. 3-1. All the books in

33. Math: Trigonometry

Sec^2(u/2)=(2sec(u))/(sec(u)+1)

34. CHEMISTRY

What mass of aluminium nitrate (Al(NO3)3) would be required to prepare 2.000 L of a 0.0160 M aqueous solution of this salt?

35. maths

Question #1 - I dont understand the last step which is = (3a +1) √a √9a^3 + √a = √9 √a² · a + √a = 3√a² · √a + √a = 3a√a + √a = (3a +1) √a Question #2 - again I dont understand how from√9² x² + 9² to √9² (x² +1)

36. Math

What is 7x+3=77

37. Math

A function has f’’(x) = 10 and has f’(4) = 0 and f(2) = 4. Find f(x)

38. Calculus

Suppose the annual revenue for a company between 2000 and 2005 is approximated by R(t)=18t^2+4t+3, where t=0 represents the year 2000.(a)Find the Average Value of R(t) between t=1and t=6. (b)Find the Average Rate of Change of R(t) between t=1 and t=6.

39. geography

Porto Alegre, Brazil and Coquimbo, Chile are both near 30 degrees S latitude. Are both of them the same degrees from the equator?

40. math

√45 i dont understand the answer = 3√5 Using Least common multiple 3 |__45___ 3 |__15___ 5 why not 5 √3 i know that √45 could be √9x5 = 3√5

41. american government

I need an article that talks about Democratic views on foreign policy. I cannot find any good ones.

42. Math

Determine the point of intersection between a circle (x+2)^2 + (y-2)^2 =1 and the parabola y=-(x+2)^2 +3.can anyone please outline the steps to solve it I have tried solve by substitution but I get Stuck

43. Chemistry

Is the molecular weight of O2 15.999u or 32?

44. Materials Science and Engineering

In the figure below, Intrinsic carrier concentration is given as a function of temperature for Ge and Si. By using the data in this figure calculate the band gap of these materials. For both materials find the energy difference between the Fermi Energy

45. Math

What is the area of a rectangle with 4.5 for diagonals and 4 for width

46. Math

what are the coordinates of the center and the measure of the radius for a circle whose equation is ( x - 8)^2 + (y + 4)^2 = 12

47. MATH

If α and β are the root of the equation 2X²-7X-3=0 Find α/β+1 + β/α+1 Working answer please