Phillip

Most popular questions and responses by Phillip
1. Physics - Buoyant Force

A piece of metal weighs 50.0 N in air, 36.0 N in water, an 41.0 N in an unknown liquid. Find the density of the unknown liquid.

2. Chemistry

A 32.5g cube of aluminum initially at 45.8 C is submerged into 105.3g water at 15.4 C. What is the final temp of both substances at thermal equilibrium. Assume the al and the H2O are thermally isolated from everything else) Specific heat cap Al= .903

3. Precalc Repost

Hello, I'm trying to figure out how to do this problem, but don't know where to begin. I think some information is missing. Blood Pressure: The function P=120+30Sin 2pi(t) models the blood pressure (in millimeters of mercury) for a person who has a high

4. math

Gloria talked on her cell phone for 320 minutes the first month, 243 minutes the second month and 489 minutes the third month.Her payment package does not allow her to pay per minute;she can only buy packages.If she has to pay \$25 for every 200 minutes,how

5. AP Physics - Static Equilibrium

A man doing push-ups pauses in the position shown in the figure. His mass is 75-kg. Determine the normal force exerted by the floor on each hand and on each foot. img145.imageshack.us/img145/7130/picture1n.png (copy into url bar) a = 40 cm b = 95 cm c = 30

6. Geometry

The area of a square is 121 sq feet. What is the length of its sides? Would I find this by dividing 121 by 4?

7. Physics

The diameter of the Moon is 3480km. What is the volume of the Moon? How many Moons would be needed to create a volume equal to the Earth? How do you find the volume of the Moon from just the diameter? Also, does anybody know how to figure out the volume of

8. Chemistry

A weather balloon is filled with helium that occupies a volume of 4.39 x 10^4 L at 0.995 atm and 32.0°C. After it is released, it rises to a location where the pressure is 0.720 atm and the temperature is -14.1°C. What is the volume of the balloon at

9. physics

13. A red car of mass m is heading north (direction 0°). It collides at an intersection with a yellow car of mass 1.3m heading east (direction 90°). Immediately after the collision, the cars lock together and travel at in direction 42°. What is the

10. Pre Calc

To determine the height of the Louisiana-Pacific (LP) Tower, the tallest building in Conroe, Texas, a surveyor stands at a point on the ground, level with the base of the LP building. She measures the point to be 320ft from the building's base and the

11. manth

a trail bike has a front wheel with a diameter of 40cm and a back wheel of of a diametet 60cm. Through what angle does the front wheel turn if the back wheel turns through 8 radians?

12. Pre-Calc (exponential growth)

A COLONY OF BACTERIA IS GROWN UNDER IDEAL CONDITIONS IN A LAB SO THAT THE POPULATION INCREASES EXPONENTIALLY WITH TIME. At the end of the three hours, there are 10,000 bacteria. At the end of the 5 hours, there are 40,000 bacteria. How many bacteria were

13. math

you are hanging a picture. the picture is level but the walls look off slightly. you want to know if the corners of the wall are squares to see if that's why things don't look right. explain how you could algebraically determine whether or not the corners

14. math

A cylindrical jar with height 8 inches and diameter 6 inches is filled to 75% capacity with juice. The juice is then poured into another cylindrical container with a 10 inch diameter and height of 4 inches. a. to what percent of its capacity is the second

15. Funky Lens Problem

img14.imageshack.us/my.php?image=funkylensproblem.tif

16. history

what did thomas alva edison invent?

17. Physics Measurements

How big is a ton? That is, what is the volume of something that weighs a ton? To be specific, estimate the diameter of a 1-ton rock, but first make a wild guess: will it be 1ft across, 3ft, or the size of a car? [Hint: Rock has mass per volume about 3

18. Chemistry

Air trapped in a cylinder fitted with a piston occupies 163.1 mL at 1.08 atm pressure. What is the new volume when the piston is depressed, increasing the pressure by 25%?

19. Geometry

Triangle DEF is an isosceles triangle with DE = FE. If DE = 5 and ÚD = 75 degrees: what is the length of FE, the measure of angle F, and the measure of angle E? E D ∆ F

20. physics

A fire fighter is trying to shoot water straight to the window located at the second floor of a house 6 m above the ground. The distance between the fire fighter and the house is 8 m and he holds the fire hose 1.8 m above the ground. The water leaves the

21. Biology 101

1. Which of the following statements is incorrect about homologous chromosomes? a. Homologous chromosomes are similar but not identical b. Homologous chromosomes have the same size and function c. Homologous chromosomes contain genes for the same kind of

22. College Physics

An artificial satellite is moving in a circular orbit with a speed of 6.5 km/s and a period of 80.0 min. A retarding rocket fires in a direction opposite to the motion. This provides a retarding deceleration of 21.0 m/s2. What is the acute angle between

23. algebra

Miranda's financial aid stipulates that her tution not exceed \$1500. If her college charges a \$45 registration fee plus \$ 425 per course4, what is the greatest number of courses for which Miranda can register?

24. Geometry

Which ordered pair is the solution to the system of equations below? {3x-7y=-10 {5x-y=-6 A system of equations is shown below 2x+y=7 3x-2y=0 What is the solution to the system?

25. math

The directions for lemonade say to put 2 cups of the liquid concentrate into 1 gallon of water. If Olivia only wants to make 1 pint of lemonade, how many fluid ounces of concentrate should she use? Explain.

26. physics

When you increase the number of turns in a coil to induce more voltage, you do which of the following?. A) only get more voltage if the resistance of the larger coil remains unchanged.B) None of the above.C) do more work to induce the greater voltage.D)

27. College mechanic vibration

A half-car model of an automobile suspension system is shown below. You are to design its suspension systems (values of spring constants and damping constants). Generally, for ride comfort, it is desired to have the bounce motion at low frequency and the

28. manth

find the reference and coterminal angle for 2456 and 740

29. Geometry

I have a picture of a window showing a square in the center with sides measuring 4 feet, over each side of the square is a semi-circle(a total of 4 semi-circles), how can I find the area of the window? Should I find the area of the square and the

30. Elementary Statistics

A class consists of 39 woman and 42 men. If a student is randomly selected, what is the probability that the student will be male?

31. pre-calc

Hello, I'm trying to figure out how to do this problem, but don't know where to begin. I think some information is missing. Blood Pressure: The function P=120+30Sin 2pi(t) models the blood pressure (in millimeters of mercury) for a person who has a high

32. Research

What are the steps to the research process and which are the most important steps? A title specific internet search gives the following hits:

33. Spanish 102

¿Qué hará Ud. este fin de semana? Escriba por lo menos 4 oraciones con 4 verbos diferentes en el TIEMPO FUTURO (not the ir a + infinitive construction) para describir sus acciones. Leeré un libro Don Quote de Miguel De Cervantes. No trabajaré este fin

34. physics

In any region of space where a magnetic field is changing in time, there is which of these?. A) None of these.B) induced electric field, also changing in time.C) All of these.D) even larger magnetic field.E) induced gravitational field.

35. Math Statistics

Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Student's grades - A, B, or C, on a test.

36. Statistics

A bag contains 8 red marbles, 3 blue marbles, and 2 green marbles.

37. Chemistry

It takes about 10^16 years for just half the samarium-149 in nature to decay by alpha-particle emission. Write the decay equation, and find the isotope that is produced by the reaction.

38. Algebra

Cant figure out what to do (equations) 1)Find three consecutive even integers with a sum of -30 2)Find four consecutive integers with a sum of 26

39. Math

How can I figure the number of days from one date to another? Example: How many days are from June 21 to Sept. 23? I need to do this without using a calendar. The first thing you need to know is the number of days in each month. If you don't know this

40. physics

When you increase the number of turns in a coil to induce more voltage, you do which of the following?. A) only get more voltage if the resistance of the larger coil remains unchanged.B) None of the above.C) do more work to induce the greater voltage.D)

41. algebra

for a given performance, 4 1/4 times as many tickets were sold as there were seats. If 5100 tickets were sold, how many could be seated in the auditorium?

42. Math

Suppose the mean heights of a population are 72 inches with a standard deviation of 2 inches. What height (x) corresponds to the z value of 1

43. calculus

A MANUFACTURE OF LIGHTBULBS HASS SAMPLED 40 BULBS IN ORDER TO DETERMINE THE POPULATION MEAN LIFE OF THE BULBS. tHE SAMPLE MEAN WAS 1200 HOURS WITH A STANDARD DEVIATION OF 100. tHE MANUFACTURER WOULD LIKE TO KNOW, WITH 95% CONFIDENCE, THE INTERVAL VALUES

44. Physics (BioPhysics)

You are bending your upper body forward, while your legs remain perfectly straight and their center of gravity remains over the back of your feet (see cartoon below). What is the maximum angle  you can lean forward by without tipping over? Assume that

45. MATH

Jim had 92 more marbles than Sam. After Sam gave Jim 18 marbles, Jim had twice as many marbles as Sam. How many marbles did Jim have at first?

46. physics

A scuba diver must decompress after a deep dive to allow excess nitrogen to exit safely from his bloodstream. The length of time required for decompression depends on the total change in pressure that the diver experienced. Find this total change in

47. College Calc

Problem: y=sqrtx ^1/x. Find DY/DX. ln(f(x))=lnx^1/2x or lnx to the 1/2x 1/2x lnx product rule (1/4x^2)(lnx)+(1/x)(1/2x) is the product rule correct? What do i do after this product rule?

48. education

Webbing Is A. Teacher created duck theme for classroom B.way to capitalize on children's ideal without enforcement a point to view on them c.planning tool that provides deputy to a topic and creates a map of possible activities and projects d. Technique to

49. education

Behavioral objectives clearly stated A. What the children will actually do B. How children should behave C. What children are interested D.the range of normal behavioral for children

50. physics

In any region of space where a magnetic field is changing in time, there is which of these?. A) None of these.B) induced electric field, also changing in time.C) All of these.D) even larger magnetic field.E) induced gravitational field.

51. algebra

simplify by collecting like terms if possible 7sqrt20-8sqrt5

52. physics

A 1340 kg car is traveling with a speed of 15.0 m/s. What is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 51.5 m?

53. science

Is filtered water unhealthy for my fish because the electrolytes have been removed in the process?

54. science

why is the root the first part of a plant to grow?

55. Physics

The escalator that leads down into a subway station has a length of 28.5 m and a speed of 1.6 m/s relative to the ground. A student is coming out of the station by running in the wrong direction on this escalator. The local record time for this trick is 11

56. math repost

1. What is the exact value of csc^2 210degrees - cot^2 210degrees? 2. Can you make a generalization about the value of csc^2 theta - cot^2 theta? I'm not sure what to do, I'm familiar with the terms but not sure how to go about solving the question.

57. Engineering

Based on the following labor/material/costs/revenue structure, develop a production plan to maximize profit. You have 40 hours per week at the shown rate at each position type and can plan on 15% additional hours at overtime rates of 150%. You have room

58. algebra

I checked my answer and it doesnt come out right (-3J-(-3))/-6=12

59. english/language arts

Where are the prpositions and what are their subjects(some of them contain more than one? 1)Chhirps of the newly hatched chicks could be heard in the corridor. 2)A plane made an emergancy landing in a corn field. 3)The elephants lumbered past us toward the

60. Inducttive and deductive claims

Inductive and deductive claims such as "all", "none", or "some" impact the assertions of argument. As a reader, which are you more receptive to: information that claims to represent all of the cases under discussion or that which claims to represent only

Determine two angles between 0 and 360 that have a cosecant of -8. I don't understand what steps I should take in order to solve the question. Im not looking for the answer just a formula to do questions like this.

62. Chemistry

A carbon atom is bombarded by high energy photons with a wavelength of 40 nm. Find how many electrons are ejected and the velocity of the first electron.

63. college math

Find the measures of angles 1 through 5 in the figure shown. if the angles are 78 degrees and 42 degrees.

64. physics

Which of these is not an application of electromagnetic induction? A) Radio.B) None of these.C) Sound.D) Light.E) All of these are

65. physics

Which of these is not an application of electromagnetic induction? A) Radio.B) None of these.C) Sound.D) Light.E) All of these are.

66. principles of physics

What is the key ingredient for electromagnetic induction? A) Motion.B) Energy.C) Force.D) Magnetic charge.E) Electric charge.

67. geometry

In thea diagram,ABCD is a trapezium with AB,DC and vertices A(-4;1),B(x;-3),C(1;y) and D.Determine the value of x if the distance AB is 5 units.

68. Physics

Question contains pictures: h t t p : / / g o o . g l / M H k y 1 (delete the spaces between the characters for the URL)

69. Physics

(Delete the spaces between the characters for the URL of the question): h t t p : / / g o o . g l / E 9 M X o

70. Science

what is the element Sulfurs phase in nature, Physical and Chemical properties.

71. Language Arts

What awards has Jack London received?

72. U.S. History

I have to write an essay answering this question, " How were the reform movements and the Second Great Awakening of 1820-1860 in the United States related to the growth of industry and urban life?" and I'm haing trouble organizing my thoughts and writing

73. Maths

Find the values of P and Q in an Ap -12,P,Q,18

74. QMI

if 2000 is invested at the end of each year for 36years(until age 65)in an account that pays 10% compounded annually. how much at age 65?

75. life orientation

Identity your human rights violation or discrimination

76. Maths literacy, accounting, economics and business studies

Are ther any possibilities of studying an Accountant career with this subjects?

77. Related rates math in calculus

A square sheet of cardboard has sides 18cm. Four equal portions are cut away from the corner and discard. The sides are then twiced up to form a restangular box. What are the dimension of the box formed that will have max volume?

78. Science

Earth travels around the sun at a spreed of 30,000 meters per second. Express this in kilometers per hour.

79. trig identites

since sin2x+√3cos2x=2sin(2x+60) find the general solution for the equation sin2x+√3cosx=0 thank you

80. Math

a group of students ate a whole pie each student ate exactly 1/5 of the pie how many students shared the pie

81. Math

How do I find the unit rate for 17 ounces for \$5.00?

82. Learning

Tom has difficulty battling distractions while studying. Which of the following strategies would help him with this problem? A. Taking notes that keep him focused. B. Improving his study environment. C. Adding positive messages to his study area. D. Both B

83. intermediate accounting

explain impotnce of review of accounting cycle

84. physics

What is the key ingredient for electromagnetic induction? A) Motion.B) Energy.C) Force.D) Magnetic charge.E) Electric charge.

Beth earns \$3450 monthly, she is married and claims two exemptions. Find the FIT withheld from her montly check using the percentage method. I have: 2(195.83)= 391.66 3450-391.66 = 3058.34 0.15(3058.34-517) 0.15(2541.34)= \$381 Stacy is single and claims

86. Physics

john and Sarah participated in a roller skating show. while 75kg john skated backwards at 3.00m/s, 60kg Sarah jumped into his arms with a velocity of 5m/s in the same direction. a. how fast did the pair roll backwards together? b. if john instead skated

87. social studies

when did president nixon get impeached

88. Organic chemistry

(i) write a proton transfer reaction that may occur, using curved arrows to show electron movements. (ii) write the pKa of the most acidic H on each side of the equation (iii) State whether reactants or products are favored and by how much (A) Phenol +

89. grammar

is oi like in point long sound or short sound?

90. Statistics

Find the regression line for this data set. x y 0 23 2 27 2.3 29 4.1 32 5 35

91. Anatomy

The change in the number of olfactory neurons as we age increase the detection of warning smells

92. Statistics

Find the population standard deviation for the data set? 1, 2, 3, 5, 6, 7

93. math

what is 34 multiply 56?

94. ENGLISH

What are words with the ending shion except cushion and fashion?

95. Physics

If a bird moves with an initial velocity of 30secs and accelerates at the rate of 40m/s to cover a distance of 70km/hrs.Calculate the final velocity of the bird?

96. physics

At a time when mining asteroids has become feasible, astronauts have connected a line between their 3640 kg space tug and a 6500 kg asteroid. Using their ship's engine, they pull on the asteroid with a force of 490 N. Initially the tug and the asteroid are

5 ways in which the human or environmental problem impacts on the community

98. math

The Mustangs and the Bruins play in a basketball tournament. The team that first wins three games wins the tournament. Assuming ties are not possible, find the number of possible ways in which the tournament can occur. I feel like there is not enough

99. math

The numbers -3, -4, and 6 are used once and substitued at random for a, b, and c in the equation ax+b=c. What is the probability that x turns out to be negative. I'm not sure where to begin with this. Can you help?