# Lance

Newest questions and responses by Lance
1. ## Physics

A driving bell can withstand a maximum pressure of 2.5 x 10^6 Pa. What maximum depth can the ball reach in seawater?

asked on May 7, 2018
2. ## Physics

What is the gauge pressure at the bottom of a pool 1.9 m deep?

asked on May 7, 2018
3. ## Physics

What is the absolute pressure 1.8 m below the surface of a lake?

asked on May 7, 2018
4. ## Physics

What is the gauge pressure if the absolute pressure is 321 atm?

asked on May 7, 2018
5. ## Physics

What is the absolute pressure if the gauge pressure is 3.2 atm?

asked on May 7, 2018
6. ## Physics

What is the absolute pressure 2.5 m below sea surface?

asked on May 7, 2018
7. ## Physics

What is the gauge pressure if the absolute pressure is 400 kPa?

asked on May 7, 2018
8. ## Physics

A diver can withstand a maximum pressure of 3x10^5 Pa. What maximum depth can he reach in seawater?

asked on May 7, 2018
9. ## Physics

What is the absolute pressure if the gauge pressure is 100 kPa?

asked on May 7, 2018
10. ## Physics

A copper cylinder with a cross-sectional area 0.034 m^2 is placed vertically on a tabletop. What is the weight of the cylinder if it exerts an 800 Pa of pressure on the table top?

asked on May 2, 2018
11. ## Physics

A 500-mL beaker has a mass of 250 g when empty and 645 g when filled with an unknown liquid. What is the density of the liquid?

asked on May 2, 2018
12. ## Physics

What is the mass of a rectangular shaped ice block with dimensions of 0.04m x 0.05m x 0.03m if the density of ice is 917 kg/m3?

asked on May 2, 2018
13. ## Math

If an elliptic race track is 100 yards long and 20 yards wide, then how far apart are the foci?

asked on April 18, 2018
14. ## Physics

What is the focal length of a lens that has a center of curvature of 18 meters from one of the curves of the lens?

asked on April 11, 2018
15. ## Physics

What is the focal length if a lens that has a center of curvature 8 meters from one of the curves on the lens?

asked on April 10, 2018
16. ## Physics

An object is placed at a distance of 60 cm from a converging lens with a focal length of 20cm. What is the magnification of the lens?

asked on April 10, 2018
17. ## Physics (HELP)

An object is placed at a distance of 60 cm from a converging lens with a focal length of 20 cm. What is the magnification of the lens?

asked on April 9, 2018
18. ## Physics (HELP)

An object is placed at a distance of 6 cm from a concave mirror and an image is produced at a distance at a distance of 14 cm from the mirror. What is the focal length?

asked on April 9, 2018
19. ## Physics

A ray of light perpendicular to a medium produces a refracted ray measuring 45º. * True False

asked on April 8, 2018
20. ## Physics (HELP)

The critical angle is the angle at which a ray of light is no longer refracted but completely reflected. True or false?

asked on April 5, 2018
21. ## Physics (HELP)

When light goes from a medium that is less dense to a medium that is more dense, the angle of the refraction is greater than the angle of the incidence

asked on April 5, 2018
22. ## Physics (HELP)

A real image is usually inverted, but can be upright in special cases. True or false?

asked on April 5, 2018
23. ## Physics (HELP)

An object inside of the focal point of a concave mirror produces an image that is...

asked on April 5, 2018
24. ## Physics (HELP)

The angle of reflection of a ray of light striking a plane mirror is ½ the angle of incidence. True or False?

asked on April 4, 2018
25. ## Physics (HELP)

An object is placed at a distance of 25 meters from a concave mirror with a focal length of 20 meters. The image produced is a distance of ___ meters from the mirror.

asked on April 4, 2018
26. ## Physics (HELP)

An object is placed at a distance of 8 meters from a concave mirror with a focal length of 6 meters. The image produced is a distance of ___ meters from the mirror.

asked on April 4, 2018
27. ## Physics (HELP)

Jill pulls on a rope to lift a 12 kg pail out of a well, while the clumsy jack watches. For a 10.0 meter segment of the lift, she lifts the bucket straight up at constant speed. How much power is required to complete this task in 5 seconds?

asked on March 23, 2018
28. ## Calculus- Related rates

A spherical balloon is inflated at the rate of 1 cm^3 per minuter. At the instant when the radius r=1.5, (a.) how fast is the radius increasing? (b.) how fast is the surface area increasing?

asked on March 1, 2017
29. ## Calculus

The length l of a rectangle is decreasing at the rate of 3cm/sec, while its width w is increasing at the rate of 3cm/sec. Find the rates of change of (1.) the area, (2.) the perimeter, (3.) the length of one diagonal at the instant when l=15 and w=6.

asked on February 25, 2017
30. ## Physics

A glacier advances at 7 × 10−6 cm/s. How far will it move in 3.7 y? Answer in units of cm. I have calculated that there are 31,449,600 seconds in a year. I multiplied 31,449,600 by 7 × 10−6 and got 2201.472. Then I multiplied that by 3.7 and got

asked on October 4, 2016
31. ## Chemistry

Sodium + Sulfuric Acid and Phosphoric Acid + Magnesium Hydroxide a.write the formula b. supply the product c.type of reaction d. balancing

asked on September 11, 2016
32. ## Math

Let f(a,b) = 2a - 3b^2 + 7. If f(b,3) = 90, then what is b? Thank you for helping!

asked on April 7, 2016
33. ## Math

If f(x)=5x-12, find a value for x so that f^-1(x)=f(x+1). Thank you so much

asked on April 7, 2016
34. ## Math

If 1 < x < 9/8, which is bigger, ∛3x or √2x.

asked on March 21, 2016
35. ## Math haha

Simplify: ( 7/2+5/6 )^2 - ( 7/2-5/6 )^2

asked on March 20, 2016
36. ## Math

If 1 > x > 9/8, which is bigger, ∛3x or √2x.

asked on March 20, 2016
37. ## math

Without doing the computation explain why or why not19.7 is a reasonable value for the expression 122.14÷6.2.

asked on September 1, 2015
38. ## MATH

I am trying to find the rule for a function table with input 2, output 30; input 3, output 48; input 4, output 66.

asked on March 18, 2015
39. ## physics

A 78 kg bag of mortar mix is sitting in the back of a truck rounding a traffic circle of radius 27 m at a speed of 21 km/h. Using the truck's frame of reference, find the force of contact between the bag and the side of the truck. Assume that the floor at

asked on October 11, 2014
40. ## Algebra, Logirithms

Find the inverse of the function: f(x) = e^(4x+2) - 10

asked on May 5, 2014
41. ## Math

Help Please! The LCM of two numbers is 60. The GCF of the numbers is 5. One number is 5 more than the other. The numbers are________ and __________ Please help clueless in Massachusetts

asked on February 25, 2014
42. ## math

Brandon and Jacob buy used cars at the same time. Brandon buys a car with 10,000 miles on it. He drives an average of 100 miles a week. The equation that follows can be used to determine how many miles, m, will be on the car after any number of weeks of

asked on November 13, 2013
43. ## Noun and Adjective Clauses

Amanda bought a prom dress which she considered the most beautiful dress ever made. Adjective clause:Amanda bought a prom dress Word(s) modified:dress

asked on October 22, 2013
44. ## physics

Find the field produced by a uniformly charged sheet carrying 93pC/cm2 .

asked on September 3, 2013
45. ## Statistics

The inside diameter of the automobile wheel bearing sets at a factory is expected to be normally distributed with a mean of 1.30inches and a standard deviation of 0.04 inches. What is the probability that a randomly selected wheel bearing will have an

asked on July 25, 2013
46. ## Physics

Steps for drawing an acceleration time graph from a velocity time graph and vice versa?l Please give me proper steps

asked on July 10, 2013
47. ## math

Triangle GHI is an isosceles triangle. H is the vertex. If the measure of H is 73 degrees what is the measure of G? A.73 B.17 C.34 D.104 A)73 degrees?

asked on February 26, 2013
48. ## Math

Triangle ABC is an isosceles triangle If the measure of B is 37 degrees what is the measure of C? A.37 B.53 C.106 D.143 I think it's A or C?

asked on February 26, 2013
49. ## Science

Why do you think people wrestle alligators?

asked on February 18, 2013
50. ## English

To assert means to A.put into words forcefully b.pass along stories quickly C.compliment someone often D.explain something completely A?

asked on February 15, 2013
51. ## English

An incident is a single A. event B.person C.memory D.discussion A?

asked on February 15, 2013
52. ## Analytic Geometry

A parabola has a directrix y=-3, axis =4 and latus rectum equal to 2. find its equation. Please help me its for my homework

asked on February 11, 2013
53. ## Analytic Geometry

Find the equation of a circle passing through and tangent to the line x-3y+8=0

asked on January 25, 2013
54. ## Analytic Geometry

Give the equation of the circle tangent to both axes of radius 5 and in the 1st quadrant. Can you help me solve this?

asked on January 21, 2013
55. ## Analytic Geometry

What are the equations of the circles tangent to the x-axis, of radius 4 and whose center is at (-2,y) Please help, how do I solve this problem?

asked on January 21, 2013
56. ## Analytic Geometry

A point is equidistant from (-2,4) and (3,5). It is also equidistant from (-2,-3) and (6,-1). Find the point Please I need Help with this

asked on January 13, 2013
57. ## Analytic Geometry

A point is equidistant from (-2,4) and (3,5). It is also equidistant from (-2,-3) and (6,-1). Find the point Please I need Help with this

asked on January 13, 2013
58. ## Geometry

What is the equation of a line through (-2,5) and whose segment intercepted between the axes in the 2nd quadrant is 7sqrt2? Please help me solve this

asked on January 7, 2013
59. ## Math,Geometry

What are the equations of the lines through (-5,-3) and passing at distance 2sqrt5 from (5,7) Please I really need your help. I do not know how to do this problem.

asked on January 7, 2013
60. ## Math,Geometry

What are the equations of the lines through (-5,-3) and passing at distance 2sqrt5 from (5,7) Please I really need your help. I do not know how to do this problem.

asked on January 7, 2013
61. ## geometry

What are the equations of the lines through (-5, -3) and passing at distance 2sqrt5 from (5,7)? This problem is confusing? How do I solve this? Please I need your Help

asked on January 7, 2013
62. ## English

What's the difference between possessive nouns and possessive pronouns? Are they the same

asked on December 18, 2012
63. ## Grading

How do you find out what your grade is on a paper? For example if there is 70 questions and you miss 10 how do you find out what your grade is? Do you subtract 70 and 10 and when you get your answer you divide it by 100?

asked on December 18, 2012
64. ## Math

A highway construction warning sign blinks on and off. In all, the sign is on for 0.88 of each minuite. For how many seconds is the sign on in 5 minutes?

asked on December 11, 2012
65. ## Science

Define heat in science terms

asked on December 8, 2012
66. ## Science

You may have heard "Nothing is Free" explain why this is true

asked on December 1, 2012
67. ## Math perimeter

How many inches of matting are needed to frame an 8in by 11 in print? 38?

asked on November 7, 2012
68. ## math

How many inches of matting are needed to frame an 8 in by 11 in print 38in?

asked on November 7, 2012
69. ## Math

When finding the perimeter you have to add the sides not multiply right? For example a rectangle is 14 width and 29 height would the perimeter be 86in?

asked on November 7, 2012
70. ## physics

You see an optical illusion of an ever-upward spiral staircase. The climber trudges up and up and never gets anywhere, going in circles instead. Suppose the staircase is provided with a narrow ramp, allowing the tired stair-climber to push a wheelbarrow up

asked on November 4, 2012
71. ## Maths

Three boys shared some cards. Peter had twice as many cards as Farid. The ratio of the number of cards Peter had to the number of cards Kiran had was 6:5. Farid gave 2/3 of his cards to Peter and the rest to Kiran. How many cards did Kiran have at first if

asked on October 24, 2012
72. ## Finite Math- help wanted. Super hard!

In a past presidential election, it was estimated that the probability that the Republican candidate would be elected was 2/3, and therefore the probability that the Democratic candidate would be elected was 1/3 (the two Independent candidates were given

asked on October 16, 2012
73. ## math

An airplane flying against the wind travels 100 miles in the same amount of time it would take the same plane to travel 140 miles with the wind. If the wind speed is a constant 40 miles per hour, how fast would the plane travel in still air?

asked on October 10, 2012
74. ## Science

We have to build a catapult that can launch a marshmallow at least 10 feet. Can anyone give me any ideas?

asked on October 9, 2012
75. ## Order of Operations

7/6+(10-4)x5 35?

asked on September 27, 2012
76. ## Order of Operations

As you simplify each expression below, which one requires finding the quotient of 80 divided by 2 A.4+6x8/2 B.2x5x8/2 C.(2+5)x8/2 D.4+(6x8)/2 B?

asked on September 26, 2012
77. ## math

A bag of apples weighs 22.3 ounces and costs \$1.80. What is a good estimate of the price per ounce of the bag of apples? A.\$1 B.10 cents C.\$4 D.40 cents I think its either B or D. I divided

asked on September 26, 2012
78. ## Math

A bag of apples weigh 22.3 ounces and costs \$1.80 What is a good estimate of the price per ounce of the bag of apples A.\$1 B.10 cents C.\$4 D.40 cents D?

asked on September 26, 2012
79. ## Order of Operations

85/5+14x(12-8) 82?

asked on September 26, 2012
80. ## Order of operatios

7-2+3/3x5

asked on September 26, 2012
81. ## Science

Batteries change ____ energy into _____ energy Chemical and electric Converting the suns energy into electricity does not work if it is ____ time or there is ___ weather night and bad? The suns energy can be turned into electrical energy or ___ energy

asked on September 19, 2012
82. ## Math

Ned has 24 caramal candies, 18 mints,and 12 chocolate bars. he wants to divide the candies into groups so that each group has the same number of pieces of each ind of candy. What is the largest number of groups that ned can make A.2 B.4 C.6 D.12 B?

asked on September 18, 2012
83. ## mth

What is the greatest common factors of 9 and 27 A.3 B.6 C.9 D.18 C?

asked on September 18, 2012
84. ## Math

Use estimation to determine which expression has the least value A. 5 3/4 + 2 1/4 - 2 1/8= 8? B. 6 1/4 + 1 - 1 1/4= 6? C.8 1/3 - 1 1/2 + 1 1/3= 7? D? 12 2/5 - 5 +2 4/5= 10? B has least value

asked on September 17, 2012
85. ## Math

what is 1 2/3 times 3

asked on September 17, 2012
86. ## Math

Jared and 5 friends wanted to make mac and cheese for lunch. they decided to use 3 boxes and each box needs 1` 2/3 cups of milk. the milk carton has 4 cups of milk left in it. do they have enough milk to make their lunch? Prove answer I put Yes because if

asked on September 17, 2012
87. ## Math

School is out at 3:50 pm. Band practice is 2 1/2 hrs dinner takes 3/4 of an hour homework takes 1 1/4 hrs. You have to go to bed at 10. About how much time is left to play video games? A. 3 1/2 B.5 hours C.1 hour D. 2 hours D?

asked on September 17, 2012
88. ## Math

Elana bought three bags of dried fruit that weighed 1 7/10 3 1/4 and 2 3/5 about how many fruit did she buy 6 7 10 8 6?

asked on September 17, 2012
89. ## Math

Maria served 4 1/7 loaves of banana bread and 4 2/3 loaves of cranberry bread. About how many slices of bread did she serve A.80 B.72 C.64 D.32

asked on September 17, 2012
90. ## Math

Round each number to the nearest whole number 3/14

asked on September 17, 2012
91. ## science

why barium comnpounds are toxic

asked on September 16, 2012
92. ## Math

2.36 rounded to the tenths place

asked on September 15, 2012
93. ## Definition

What does TRAC stand for

asked on August 31, 2012
94. ## Math

Write a story for the following multiplication problem : 16x5 Derrick gets \$5 for every hour he works at the store. He works for 16 hours each day. How much money does he get everyday? Is that a good problem? Write a story for the following multiplication

asked on August 29, 2012
95. ## College Chemistry

A gas containing carbon and hydrogen analyzed as 85.6 % carbon and 14.4 % hydrogen. A 42.1 g sample of a gas occupied a volume of 7490 mL with a pressure of 2280.0 torr at 92 °C. Enter the molecular formula of the compound. Thanks.

asked on May 4, 2012
96. ## College chemistry

Need help balancing chemical equation. Complete and balance the chemical equation. Be sure to include the states of the reactants and products. C3H8(g)+O2(g) →

asked on May 4, 2012
97. ## Chemistry College

A 79.1 g mixture of the compounds calcium chloride and sodium sulfide is 80.9 % by mass sodium sulfide. The compound sodium sulfide is 58.9 % by mass sodium. Calculate the mass (g) of sulfur in the mixture. thanks.

asked on May 3, 2012
98. ## Statistics

A study on the amount of dye needed to get the best color for a certain type of fabric was conducted. The following data give the photometer readings for the color density of the fabric when the amount of dye used was 1% of the weight of the fabric. 13.2

asked on April 30, 2012
99. ## Reposting Chemistry College

Based on the balanced equation 4Na + O2 → 2Na2O calculate the number of Na2O formula units formed when 60 Na atoms and 10 O2 molecules react? Thanks.

asked on April 15, 2012
100. ## College Chem

Based on the balanced equation 4Na + O2 → 2Na2O calculate the number of Na2O formula units formed when 60 Na atoms and 10 O2 molecules react? Thanks.

asked on April 15, 2012

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