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October 24, 2014

Search: In a "Rotor-ride" at a carnival, people are rotated in a cylindrically walled "room." (See Fig. 5-35.) The room radius is 4.5 m, and the rotation frequency is 0.4 revolutions per second when the floor drops out

Number of results: 30,682

Physics
In a "Rotor-ride" at a carnival, people are rotated in a cylindrically walled "room." (See Fig. 5-35.) The room radius is 4.6 m, and the rotation frequency is 0.7 revolutions per second when the floor drops out. What is the minimum coefficient of static friction so that the ...
October 4, 2009 by Jennifer

physics
In a "Rotor-ride" at a carnival, people are rotated in a cylindrically walled "room." (See Fig. 5-35.) The room radius is 5.4 m, and the rotation frequency is 0.8 revolutions per second when the floor drops out. What is the minimum coefficient of static friction so the people ...
October 31, 2010 by Joe

Physics
In a "Rotor-ride" at a carnival, people are rotated in a cylindrically walled "room." The radius of the room is 5.5 m, The coefficient of static friction is μ=0.1. What is the minimum rotation frequency such that the people will not slide down the wall when the floor ...
October 10, 2011 by Alex

Physics
In a "Rotor-ride" at a carnival, people are rotated in a cylindrically walled "room." The radius of the room is 4.0 m, The coefficient of static friction is μ=0.13. What is the minimum rotation frequency such that the people will not slide down the wall when the floor ...
March 1, 2013 by Derrick

computers
. Explain the following unexpected result: $ whereis date date: /bin/date ... $ echo $PATH .:/usr/local/bin:/usr/bin:/bin $ cat > date echo "This is my own version of date." $ ./date Fri May 22 11:45:49 PDT 2009
July 19, 2011 by ivy

Physics
Please Help I have no idea how to approach this problem In a "Rotor-ride" at a carnival, people rotate in a vertical cylindrically walled "room." If the room radius was 5.7m , and the rotation frequency 0.35 revolutions per second when the floor drops out, what minimum ...
May 31, 2014 by Diana

HELP
In a "Rotor-ride" at a carnival, people pay money to be rotated in a vertical cylindrically walled "room." If the room radius is 4.8 m, and the rotation frequency is 0.6 revolutions per second when the floor drops out, what is the minimum coefficient of static friction so that...
October 9, 2006 by Britt Pogue

Algebra
If a worker wants to pack 200 newly harvested mangoes at average size of 3"x2" in delivery boxes .To optimize the cost and profit in packaging , the mangoes must be properly packed in boxes of similar sizes. To systemize counting , there must also be equal ...
August 17, 2014 by Claudette

MAth
If a worker wants to pack 200 newly harvested mangoes at average size of 3"x2" in delivery boxes .To optimize the cost and profit in packaging , the mangoes must be properly packed in boxes of similar sizes. To systemize counting , there must also be equal ...
August 17, 2014 by Claudette

Math
If a worker wants to pack 200 newly harvested mangoes at average size of 3"x2" in delivery boxes .To optimize the cost and profit in packaging , the mangoes must be properly packed in boxes of similar sizes. To systemize counting , there must also be equal ...
August 17, 2014 by Claudette

Geodetic Survey
a surveyor is trying to determine the change in hight h from the bottom to the top of a hill. If the height of instrument H is 4.5 ft the height of the object that he sights on the tower A is 6.5 ft and the zenith angle Z is 54deg 16' 25" determine the height of H (...
September 14, 2012 by Teresa

Physics
An amusement park ride called the Rotor consists of a room in the shape of a vertical cylinder (2.10 m in radius) which, once the riders are inside, begins to rotate, forcing them to the wall. When the room reaches a speed of one rotation every 1.36 s, the floor suddenly drops...
October 23, 2011 by Kellie

Physics
A popular carnival ride consists of a large, round room that rotates fast enough that any person standing against the wall will be stuck there, even as the floor is dropped away from their feet. The coefficient of static friction between the person and the wall is μs , ...
July 26, 2012 by Zac

statistic
Let's assume there are 3 people in Room A and another 3 people in Room B. The ages of the people in Room A are 25, 25, and 25. The ages of the people in Room B are: 10, 25, and 40. The mean of the ages in both rooms is 25. Does that mean that both room have populations that ...
May 12, 2010 by carol

physics
a carnival ride is made so that at a certain point the floor can be lowered and the people inside dont fall. if this carnival ride has 2.0 m radius and rotates 1.1 times per second: a) find the speed of the ride. B) find the centripetal acceleration of a rider C) what produces...
April 6, 2012 by Ren

Physics
“Rotor” is a ride found in many amusement parks that consists of a hollow cylindrical room (roughly 8 ft in radius) that rotates around a central vertical axis. Riders enter the room and stand against the canvas-covered wall. The room begins to rotate, and when a certain ...
January 16, 2012 by TAG

math
each table in a banquet room seats 8 people. The room can seat no more than 360 people. Write and solve an inequality to represent the number of tables in the banquet room
January 18, 2013 by kelsionna

statistics
If 20% of the people in a community use the emergency room at a hospital in one year, find the probabilities for a sample of 10 people, a.At the most three use the emergency room. b.Exactly three use the emergency room c.At least five use the emergency room.
December 13, 2011 by Joe

Physics-Please help with formula
If you were in a rotor style ride and the riders accelerate until the speed of ride is reached- if the radius of the cylinder is 5.0m and the coefficient of friction between clothes and wall is 0.5, how do you find minimum speed you would need to stick to the wall of the ride...
December 7, 2010 by Joey

College Physics
The rotor is an amusement park ride where people stand against the inside of a cylinder. Once the cylinder is spinning fast enough, the floor drops out. A-What force keeps the people from falling out the bottowm of the ride? I think that it's the Normal force? B-If the ...
October 21, 2008 by JP

Math
It is recommended that there be at least 7 square feet of work space for every person in a conference room. A certain conference room is 13' by 16'. Find the maximum number of people the room can accommodate.
September 8, 2012 by Cashawn

PreCalculus
I need help with a Matrix Algebra problem A small school has 100 students who occupy three classrooms A, B, and C. After the first period of the school day, half the students in room A move to room B, one-fifth of the students in room B move to room C, and one-third of the ...
December 13, 2011 by Lana

Fher
a laundry room is shaped like a rectangle. the area of the room is 6 square yards. the perimeter is 10 yards. The room is longer than it is wide. How wide is the room? How long it the room?
March 30, 2011 by Anonymous

English
Could anyone suggest a food that could go in Room 101. Room 101 is a room where you put all the foods you hate. I have been assigned to write a persuasive text on why i want this food to be put in room 101 and why. Kindly suggest a food that people generally like but it's ...
October 26, 2011 by Ruth

maths
95. Suppose that 387 people will travel on a space shuttle with room for 420 people.Each compartment seats 14 people before the next compartment opens.How many people will ride in the last compartment that opened?
October 9, 2014 by thomas

physics
A carnival ride has a radius of 2.18 m and rotates once every 0.82 sec. What would the speed of a rider be that has been flung from the ride? What would be the angular speed of a second rider who remains on the ride?
March 3, 2013 by kadie

Single Room, Earth View by Sally Ride--Help!
This regards the story "Single Room, Earth View" by Sally Ride. Choose one of the following quotations; then in a few paragraphs, discuss how Sally Ride's observations support or refute the quotation. Quotations: 1. "Observation is a passive science, experimentation is an ...
April 7, 2014 by Victoria

Alebgra
The lenth of a room is 3 more thean twice the width of the room. The perimeter of the room is 66 feet. What are the dimensions of the room? (Let x=the width fo the room.) Book gives the following for the answer: x + x =(3 + 2x) + (3 + 2x)=66 width=10, lenth=23 I am not clear ...
February 4, 2008 by G

algebra
Martha is having carpet installed in a rectangular room.She estimates the measurements of the room to be 13 ft by 19 ft. The actual measurements of the room are 12 ft by 18 ft. Which expression represents the relative error in the measurement of the area of the room
May 15, 2012 by tenzintsering

physics
A small motor is mounted on the axis of a space probe with its rotor (the rotating part of the motor) parallel to the axis of the probe. Its function is to control the rotational position of the probe about the axis. The moment of inertia of the probe is 6000 times that of the...
November 13, 2010 by Miki

Math
Teng is designing a house and in each room he can choose from tiles, floorboards, or carpet for the floor. a. How many combinations of flooring materials are possible if her designs a 2 room studio? b. How many combinations are possible for a 3 room apartment? c. How many ...
December 8, 2013 by Michelle

math
one third of the people in a convention room are seated in three-fourths of the chairs. THe rest of the people in the room decide to stand. If there are 8 empty chairs, how many people are standing? Please fully explain because i am sooo confused!!!
April 4, 2012 by Audrey

English
1. He went to the teachers' room. There were many teachers, and he was able to see some students scolded by a teacher. 2. The native speaker has his office. In the teacher's office, we talked with the foreign speaker. 3. The teacher's room is a little small, so only 15 ...
April 21, 2010 by rfvv

physics
Suppose a person is going to be exposed to a steady tone of frequency 8000 Hz all night (perhaps arising from noisy electronics in a nearby room. ) If this person wants their perceived room loudness level to be a very quiet 10 phon (in order to sleep easily), what is the ...
March 10, 2011 by dreadantlers

math 1 question
A student measures a rectangular room to be 20.0m x 17.16m. Which of the numbers below represents the room's area with the correct number of significant figures? 340m^2 343m^2 343.2m^2 343.20m^2 the correct answer is c but it says sig fig so is it b??? im having trouble with ...
October 6, 2014 by SkatingDJ

science 1 question
A student measures a rectangular room to be 20.0m x 17.16m. Which of the numbers below represents the room's area with the correct number of significant figures? 340m^2 343m^2 343.2m^2 343.20m^2 the correct answer is c but it says sig fig so is it b??? im having trouble with ...
October 7, 2014 by SkatingDJ

history
-the plan of Tutankhamun's tomb when Howard Carter found it- When did Carter go into the different rooms? What do you think? Put them in order. Number them 1-4. a. burial room ( ) b. treasure room ( ) c. small room ( ) d. long room ( ) -------- Whill you give me the answers to...
December 5, 2013 by rfvv

science
A room has large windows without curtains. The sunlight makes the room bright, but no one can see in. Is the glass opaque, translucent, or transparent?
May 9, 2012 by raquel

English
Q: What is the restroom at school called? Is it the boys' room or the girls' room? Is it the staff's room for teachers?
March 27, 2013 by rfvv

math
the average weight of men in a meeting room is 170 pounds, and average weight of women is 130 pounds. if more than 60% of the people in the room are men, which of the following could be the average weight of all the people in the room?
September 16, 2013 by math

phy
A centrifuge rotor rotating at 13,000 rpm is shut off and is eventually brought uniformly to rest by a frictional torque of 1.30 mN. If the mass of the rotor is 4.80 kg and it can be approximated as a solid cylinder of radius 0.0710 m, through how many revolutions will the ...
October 16, 2010 by mas

Geometry
the walls, floor, and ceiling of a room form a rectangular solid. The total surface are of the room is 992 square feet. The dimensions of the floor are 12 feet by 20 feet a. What is the lateral area of the room b. What is the height of the room.
May 17, 2014 by Jake Monroe

biology
Pretend you are taking a tour of a factory that creates macromolecules  Describe your journey through the 4 rooms in the factory the Carbohydrate Room, the Lipid Room, the Protein Room, and the Enzyme Room. In each room, include the following: 1. What type of ...
November 20, 2013 by Reina B.

Chemistry
Your bedroom is 18 ft long and 15 ft wide, and the distance from floor to ceiling is 8 ft 6 in. You need to know the volume of the room in metric units for some scientific calculations. (a). What is the rooms volume in cubic meters? (b). What is the mass of air in the room in...
October 3, 2011 by Nicole

Physics
A centrifuge rotor rotating at 11500 is shut off and is eventually brought uniformly to rest by a frictional torque of 1.52 . a.If the mass of the rotor is 6.07 and it can be approximated as a solid cylinder of radius 0.0750 , through how many revolutions will the rotor turn ...
November 27, 2012 by Melissa

Physics
A centrifuge rotor rotating at 10700 rpm is shut off and is eventually brought uniformly to rest by a frictional torque of 2.48 m * N. 1. If the mass of the rotor is 5.61 kg and it can be approximated as a solid cylinder of radius 0.0820 m, through how many revolutions will ...
November 22, 2010 by Nick

math
Alan built an additional room onto his house. the length of the room is 3 times the width. the perimeter of he room is 60 feet. What is the length of the room? a 7.5 feet b 22.5 feet
February 9, 2009 by Anonymous

math
A circular room has radius equal to 40 feet. Marble is to be laid on a sector of the room. What is the area of the sector if the central angle is 45?
March 3, 2011 by mariyah

physics
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats facing the axis, their backs against the outer wall. At one instant the outer wall moves at a speed of 3.2 m/s, and an 83 kg person feels a 525 N force ...
October 1, 2008 by Jen

physics
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats facing the axis, their backs against the outer wall. At one instant the outer wall moves at a speed of 3.04 m/s, and an 65.2-kg person feels a 290-N ...
October 8, 2012 by Jane

Physics
At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats facing the axis, their backs against the outer wall. At one instant the outer wall moves at a speed of 3.44 m/s, and an 64.3-kg person feels a 277-N ...
October 3, 2013 by Tyler

math
An elementary school has a large lunch room containing many tables. One day at lunch, the children at one table decide to see how long it will take to spread a rumor throughout the entire room. Each minute, the number of tables that know the rumor doubles in size. If it takes ...
August 2, 2012 by Anonymous

math
An elementary school has a large lunch room containing many tables. One day at lunch, the children at one table decide to see how long it will take to spread a rumor throughout the entire room. Each minute, the number of tables that know the rumor doubles in size. If it takes ...
August 3, 2012 by Anonymous

Physics
Spin and Barf Ride Rotor diameter is 4.0 m. Minimum period of rotation is 1.7 s. The ride lasts 110 s. 1. What is the tangential velocity? 2. What is the centripetal acceleration is m/s2 and gs?
January 19, 2011 by John

physics
A centrifuge rotor rotating at 7,000 rpm is shut off and is eventually brought uniformly to rest by a frictional torque of 1.30 mN. If the mass of the rotor is 4.80 kg and it can be approximated as a solid cylinder of radius 0.0710 m, through how many revolutions will the ...
November 10, 2009 by jennifer

Math
The Wilson family is at it again.. they are installing new carpet for their home. Their rectangular shaped living room is 25 feet long and 18 feet wide. THeir rectangular shaped game room is 4 feet shorter in both length and width of their living room. What is the area of the ...
March 6, 2013 by Jerald

physics
A room is 13 ft. It needs to be painted. The ceiling is 8 ft above the floor. there are two windows int he room, each one is 3 ft by 4 ft. The door is 2.5 ft by 6.5 ft. What is the area of the wall and ceiling? 1 gallon of paint covers 64.37sq ft. How many gallons are needed ...
June 16, 2011 by Anonymous

College
A room is 13 ft. It needs to be painted. The ceiling is 8 ft above the floor. there are two windows int he room, each one is 3 ft by 4 ft. The door is 2.5 ft by 6.5 ft. What is the area of the wall and ceiling? 1 gallon of paint covers 64.37sq ft. How many gallons are needed ...
June 16, 2011 by Anonymous

science
One person talking softly in a room is about 60dB. If 100 people in the room are all talking at the same level the intensity is now?
April 30, 2011 by Anonymous

Math
-There are 7 girls in a room. -Each girl has 7 backpacks in the room. -In each backpack there are 7 big dogs. -For every big dog, there are 7 puppies too! HOW MANY LEGS ARE IN THE ROOM?
February 13, 2008 by Glenn

physics
A room has the dimensions 3.0 m by 4.0 m by 4.0 m . The air in the room is 79% N2( MW= 28) and 21% O2 (MW = 32). At a temperature of 20 degrees Celsius and pressure of 115 kPa , what is the mass of the air in the room in kilograms?
November 28, 2011 by ED

math
the lenght of a rectangular room is 6 feet longer than twice the width. If the room's perimeter is 132 feet, what are the room's dimensions?
October 22, 2013 by Tania

Algebra
Lisa is cutting carpet for a rectangular room. The area of the room is 324ft^2 . The length of the room is 3 feet longer than twice he width. What should the dimensions of he carpet be?
May 15, 2013 by Codey

math
A carpenter is adding a sun room to the back of a house. If the width of the room is 15 feet, the distance from the house to either obtuse corner of the room is 13 feet, and the distance from the house to the point of the room is 18 feet, then angle = _____degrees. Round to ...
May 25, 2013 by Emma

Algebra
Peter painted 1/3 of a room while Joe painted 2/5 of the same room. It then took Peter 1 hour, 40 minutes to finish painting the remainder of the room by himself. In how many hours could Peter have painted the entire room by himself? Express answer as a mixed number.
May 6, 2011 by Jason

database management
2. Given the following business scenario, create a Crows Foot ERD using a specialization hierarchy if appropriate. Tiny Hospital keeps information on patients and hospital rooms. The system assigns each patient a patient ID number. In addition, the patients name and date of ...
May 18, 2012 by Maureen

Physics
A cylindrical carnival ride is spinning with a frequency of 0.5 Hz in a circle of radius 3 m which allows a 60 kg person to “stick” to the side of the ride as it spins. T = 2s v = 9.42 m/s A) Find the normal force exerted on the person. B) What minimum s is ...
November 27, 2012 by Sierra

math for elementary teachers
Suppose that carpeting cost $12.36 per square yard at a carpet store. what will be the cost to carpet a conference room if the rooms dimensions are 110 ft by 42 ft. (the conference room should seat 380 people using 6' diameter tables each seating 10 people.)
March 19, 2012 by brittney

Physics
The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.70 m and 0.99 m, respectively. The respective rotational speeds are 454 rev/min and 4,147 rev/min. Calculate the speeds of the tips of both rotors. main rotor =180.6625215m/s tail rotor ______m/...
October 10, 2011 by Allie

math
. Susan's room is 9 feet long. The area of the room is 54 square feet.What is the perimeter of her room?
March 30, 2012 by Anonymous

math
in a motel the room tax is $4.50 and the room rate is $75. write the tax asa percent of the room
October 16, 2013 by Taylor

Math
A movie theater just added two rooms. One room is large enough for 125 people, and the other can seat up to 350 people. In each room, the seating is arranged in horizontal rows with the same number of seats in each row. what is the greatest number of seats that can make up ...
August 31, 2012 by Anonymous

Science -- I can't find my original post...
In a closed room with an electric system controlled by a thermostat, would hanging a load of laundry to dry in that room require the system to work harder to maintain the temperature of the room?
January 9, 2014 by Kelly

FRENCH
I HAVE TO DESCRIBE 5 ROOMS IN MY HOUSE. I HAVE TO WRITE 6 SENTENCES ABOUT EACH ROOM. CAN YOU PLEASE CHECK AND SEE IF I WROTE MY SENTENCES CORRECTLY. 1ST ROOM:la troisime salle est la salle de sjour. c'est l que nous passons nos soires en famille et de parler ensemble. il ...
January 5, 2010 by Keyanna

physics
A room is 3.4 smoots wide, 7.1 smoots long, and 1.5 smoots high. 28% of the room's walls are windows and doors. Determine the inside wall surface area of a 1/20 scale model of the room. (sq. in)
November 19, 2010 by sandhu

math
A hotel has rooms numbered 1 to 1000. One thousand visitors enter the hotel. 1. The first visitor switches on the light switches of every room. 2. The second visitor switches off the light switches of every other room, starting with room 2. 3. The third visitor toggles the ...
October 20, 2014 by al

math
Erika is painting her living room. The room measures 10.5 feet by 11.5 feet. The ceiling is 10 feet high. What is the wall area of the room?
May 1, 2012 by please help me!!

English
I left out the following descriptions of the room. Thank you very much for your invaluable help. 1) I left out the following description of the room. The rooms are all set in a way that one cannot see from one room to another; besides, each room has a Gothic window (of stained...
August 31, 2011 by Henry2

Information Systems
Problem #2 from page 173 Given the following business scenario, create a Crows Foot ERD using a specialization hierarchy if appropriate. Tiny Hospital keeps information on patients and hospital rooms. The system assigns each patient a patient ID number. In addition, the ...
February 25, 2013 by Justin

Chemistry
Dr. Penny Dollar is a health psychologist interested in getting more people to wash their hands after using the restroom. She places a stack of attractive terry cloth towels in one mens room and a roll of brown, thin paper sheets in another mens room in the same building.Her...
August 27, 2014 by Anonymous

chemistry
maintain room at partial pressure of water of 12 torr. the room is 20 degrees celcuis and relitive humidity is reading 52% 1. what is the partial pressur of water in the air in the room? 2. Equibrium vapor pressure of water at 20 degrees celcius is 17.5 tor is there adequate ...
February 15, 2011 by Dee

maths
Wall paper ,312cm long and 25cm wide is required to cover the wall of a room . length of the room is 7m and its breadth is twice its height. Determine the height of the room .
December 18, 2012 by Anonymous

Physic II
If a small amount of a substances that is at 50 deg C is placed in a large insulated room,what will the final temp. of the substances be? will heat transfer to the room take place? will the room temp. go up?
April 8, 2014 by Huliney2

math
marcus and joannie are having a new family room added on. The length of the room is 6 feet less than double the length. If the perimeter is 78 feet,what is the dimension of the room?
July 19, 2011 by tika

maths --plse help me..
Wall paper ,312cm long and 25cm wide is required to cover the wall of a room . length of the room is 7m and its breadth is twice its height. Determine the height of the room .
December 18, 2012 by rukmani

Intermediate Algebra
Joe can paint a room in 6 hours while Sue can paint the same room in 5 hours. Working together, how long would it take them to paint the room? A) What does the variable stand for? x stands for the amount of hours to paint the room. B)Write the equation. 1/6 + 1/5 = 1/x c) ...
February 11, 2009 by Jennifer

Trigonometry
Statuary Hal is an elliptical room in the U.S. Capitol. Teh room is also called the Whispering Gallery because a person standing at one focus of the room can hear even a whisper spoken by a person standing at the other focus. Statuary Hall is 46 ft. wide and 97 ft. long. a) ...
December 19, 2011 by Lindsey

Physics-Please check
I posted this question this morning but I'm not sure of the response Damon provided. If you were in a rotor style ride and the riders accelerate until the speed of ride is reached- if the radius of the cylinder is 5.0m and the coefficient of friction between clothes and wall ...
December 7, 2010 by Joey

Physics
The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.59 m and 0.98 m, respectively. The respective rotational speeds are 456 rev/min and 4143 rev/min. Calculate the speeds of the tips of both rotors. main rotor: tail rotor: Compare these speeds ...
November 18, 2010 by Anonymous

math
a room is shaped like like a triangle. the area of the room is 6 square yards. The perimeter is 10 yards. How wide and long is the room?
January 5, 2011 by wayne

math
Each wall of a square meeting room is 40 feet long. If loudspeakers are placed 20 feet apart around the room, how many loudspeakers are in the room?
December 18, 2012 by nina

Algebra.... SOMEONE HELP ME!!!!
A rectangular room on a blueprint is 2 inches wide and 5 inches long. If the scale of the blueprint to the actual room is 1:72, what is the width of the room?
April 8, 2013 by syram

English
1. A lot of studens are studying in the study room. (Can we use the term 'study' room' as a big place where students can study together? Do you have some other expressions for that?) 2. He is in the reading room with his friends to read books. (Is it grammatical? Can we use '...
September 15, 2013 by rfvv

PHYSICS
Q1= An 85 cu.meter room. - How much energy required to heat room temperature from 5C to 22C. - How long in minutes Q2= - a 40 Liter radiator in the same room above. energy input is 5400 watts. In order to increase room temperature from 5C to 22C, how long 5400 Watts will be ...
May 31, 2012 by M BIL

physics
The temperature in a room is kept at a constant 20 C but the humidity is only 20%. If the room has a volume of 30m, and the rooms door and windows closed, how many kilograms of water must be put into the vaporizer to increase the humidity from 20% to 85% ( the molecular ...
January 3, 2012 by sand

physics
The temperature in a room is kept at a constant 20 C but the humidity is only 20%. If the room has a volume of 30m, and the rooms door and windows closed, how many kilograms of water must be put into the vaporizer to increase the humidity from 20% to 85% ( the molecular ...
February 24, 2012 by sand

physics
The temperature in a room is kept at a constant 20 C but the humidity is only 20%. If the room has a volume of 30m, and the rooms door and windows closed, how many kilograms of water must be put into the vaporizer to increase the humidity from 20% to 85% ( the molecular ...
February 25, 2012 by sand

physics
The temperature in a room is kept at a constant 20 C but the humidity is only 20%. If the room has a volume of 30m, and the rooms door and windows closed, how many kilograms of water must be put into the vaporizer to increase the humidity from 20% to 85% ( the molecular ...
February 27, 2012 by sand

Geometry
If Gina cleans her room, then she will go to the mall. Which of these is logically equivalent to the given statement? Answer A. If Gina did not go to the mall, then she did not clean her room. B. If Gina did not go to the mall, then she cleaned her room. C. If Gina cleaned her...
February 26, 2012 by Anonymous

Philosophy
For the following argument, a) Translate into standard form (if not already in standard form), b) symbolize to simplify, and then c) determine whether the syllogism is valid or invalid, explaining why by reference to rules, AND by showing the appropriate Venn diagram: Arg Only...
December 14, 2006 by Anne

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