Thursday

February 23, 2017
Number of results: 59,944

**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*

**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*

**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*

**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**

On the Round Up at the amusement park, people stand in a cylindical "room" of radius 6.18 m and the room rotates until it reaches a rotational frequency of 0.89 revolutions per second. At this point, the floor drops out. What is the minimum coefficient of static friction ...

*May 10, 2016 by Kyle*

**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*

**Physics**

â€œRotorâ€ 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 ...

*January 16, 2012 by TAG*

**physics**

a carnival ride is made so that at a certain point the floor can be lowered and the people inside don't 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 ...

*April 6, 2012 by Ren*

**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 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*

**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 m·N. 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*

**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*

**AP Physics**

A centrifuge rotor rotating at 12000 rpm is shut off and is eventually brought to rest by a frictional torque of 1.50 m·N. 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 rotor turn ...

*January 6, 2016 by -*

**College Algebra**

A large hotel finds that it can rent 95 rooms when it charge $100 per room. For each $1 increase in room cost it rents one room less. (Likewise, for each $1 decrease in room cost it rents one room more) What price should it charge in order to maximize the revenue? Well, ...

*April 27, 2015 by Sasha*

**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 g’s?

*January 19, 2011 by John*

**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*

**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 m·N. 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*

**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*

**Dynamics**

The rotor is an amusement park ride where a person enters the Rotor when it is stationary and stands against the wall with their back against the wall. The rotor then begins to spin around a vertical axis. After reaching cruising speed, the floor drops away and the patron is ...

*September 28, 2012 by Connor*

**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*

**Algebra Word Problem**

A large hotel finds that it can rent 95 rooms when it charge $100 per room. For each $1 increase in room cost it rents one room less. (Likewise, for each $1 decrease in room cost it rents one room more) What price should it charge in order to maximize the revenue?

*April 28, 2015 by Liam*

**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 µs is ...

*November 27, 2012 by Sierra*

**12**

The Green Mountain Inn can rent all its 210 rooms when it charges $45 per night for a room, but the manager wants to increase profits. He finds, however, that for each $2 increase in the room rate, 3 fewer rooms are rented. If the cost of cleaning an occupied room is $5 per ...

*November 3, 2009 by Ak*

**math**

A room has a floor area of 1025 ft^2 and a 10 ft high ceiling. Occupancy guidelines recommend at least 200 ft^3 per person. What is the maximum number of people allowed in the room?

*May 19, 2016 by Anonymous*

**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*

**maths**

A cuboidal room is 1 and 1/2 as long again as it is broad. The cost of carpeting the room at the rate of Rs.5 per m sq is Rs.480 and the cost of papering the walls with coloured paper at the rate of Rs.3 per m sq is Rs.360. Find the dimensions of the room .

*January 26, 2013 by Anonymous*

**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*

**algebra**

the floor plan of a room has a scale of 2.5 in.:32ft. in the drawing,the length of the room is 8in.and the width of the room is 6 in. what is the perimeter of the actual room? i think is 392 ft or help

*October 12, 2015 by pizza7*

**Algebra**

Can you PLEASE help me with this Algebra problem: In a hotel conference room, the number of chairs is 47 more than the number of people currently in the room. The total number of legs currently in this room is 938. What is the sum of the digits in the number of people ...

*December 10, 2016 by Anonymous*

**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*

**Physics**

A bike wheel rotates uniformly through 2 revolutions in 3 seconds. a) what is the period of the wheel's rotation? T=3rev/2s=1.5s b) what is the frequency of the wheel's rotation? (in Hertz) f=1/T =1/1.5 =.666Hz c) what is the angular speed of the wheel(provide answer in ...

*October 31, 2007 by Tammy*

**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*

**Math**

150 people in a room. There were 4 times more women than men in the room. How many women were in the room?

*January 17, 2017 by Angella*

**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*

**physics**

A student puts on a Dresden Dolls disc in her cd player which spins at 1800 revolutions per minute. A compact disc has a mass of about 0.016 kg and a radius of 6.0 cm. a) What is the period of rotation in seconds? b) What is the frequency of the rotating disc? d) What is the ...

*January 4, 2013 by al*

**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*

**Philosphy - Dream Interpreations**

I recently just had a dream when I was alone in my room enjoying myself and suddenly about 4-5 to what I perceived as venomous snakes, each with a vivid and distinct coloring design, appeared from the trashcan in the room and start slithering around. As I made feeble and ...

*April 29, 2015 by Jerry*

**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*

**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*

**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*

**English**

1. I didn't knwon anyone in my room. 2. I knew no one in my room. 3. I knew nobody in my room. 4. I didn't know all the students in my room. 5. I didn't know all the classmates in my room. ============= If "I" is a student, do all the sentences mean the same?

*March 8, 2016 by rfvv*

**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*

**English**

He is surprised when he sees paintings in Ishaan's room. -------------------- What does "Ishaan's room" modify? Does it modify "paintings"? Is he in Ishaan's room and does he see the paintings? Or he is not in Ishaan's room. He just sees Ishaan's paintings in the room (in a ...

*January 27, 2016 by rfvv*

**physics**

An amusement park ride consists of a large vertical cylinder that spins about Figure P6.61 its axis fast enough such that any person inside is held up against the wall persons who walk around on the inner wall of the outer rim. Find the rate of rotation of the wheel (in ...

*October 1, 2011 by Anonymous*

**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*

**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*

**Physics**

A student puts on a Dresden Dolls disc in her cd player which spins at 1800 revolutions per minute. A compact disc has a mass of about 0.016 kg and a radius of 6.0 cm. a) What is the period of rotation in seconds? b) What is the frequency of the rotating disc? c) What is the ...

*January 3, 2013 by Alex*

**Physics**

A student puts on a Dresden Dolls disc in her cd player which spins at 1800 revolutions per minute. A compact disc has a mass of about 0.016 kg and a radius of 6.0 cm. a) What is the period of rotation in seconds? b) What is the frequency of the rotating disc? c) What is the ...

*January 3, 2013 by Alex*

**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**

A flying-saucer shaped fairground ride is rotating in a horizontal plane. If the rider’s circular path has a radius of 8 m, at how many revolutions per minute the ride should spin in order for the rider to feel a centripetal acceleration of about 1.5 times Earth’s ...

*February 21, 2017 by yara*

**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*

**physics (super hard)**

a carnival ride is designed with seats that carry two people weighing 910.0 N each. the seats itself weights 630 N.each seat is connected to central spindle by one chain and rotates on a radios of 6.07 meters. the ride is designed to rotate fast enough that the seats swing out...

*October 9, 2016 by nick*

**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*

**physics**

a room that measures 10.o ft wide, 32.0 ft long, and 8.00 ft high needs a certain amount of air pumped into it per minute to keep the air quality up to regulations. If the room needs completly new air every 20.0 minutes, whjat is the volume of air per second that is being ...

*October 11, 2011 by vc*

**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*

**Math**

What is the cost of the room for that is used for 1.5 hours at the rate of $23 per month room and size of 288 sg ft?

*December 11, 2009 by Nora*

**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*

**maths**

If the length of a rectangular room is 4 times its width,how is the room if it is 6,8 m long.Calculate the perimeter of the room.

*August 20, 2016 by Anonymous*

**Math**

Find the rotation in revolutions per minute given the angular speed and the radius given the linear speed and the rate of rotation. 1. w= 2.7 rad/s 2. v=24.8 m/s, 120 rev/min 3. w= 4/3Pi rad/hr Please help me with these problems! I am a visual learner and I learn best when ...

*May 2, 2016 by Sarah*

**Physics - 1**

An amusement park ride consists of a large vertical cylinder that spins about its axis fast enough that any person inside is held up against the wall when the floor drops away (Fig. P6.65). The coefficient of static friction between person and wall is μs, and the radius ...

*October 6, 2011 by Whitney*

**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*

**math**

The ferris wheel shown makes 12 revolutions per ride.how far would someone travel during one ride

*April 30, 2015 by Anonymous*

**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.*

**Physics**

If centripetal force on an object in uniform circular motion is increased what is the effect on frequency of rotation if radius is constant. What is the effect on frequency and radius if both are free to vary. If veloicty increases, period is decreased, so frequency is increased.

*June 18, 2007 by Steve*

**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 room’s volume in cubic meters? (b). What is the mass of air in the room ...

*October 3, 2011 by Nicole*

**Precal**

The equation is y=80.4- 11 ln x, 100<x<1500 Which approximates the minmum required ventilation rate in terms of the air sapace per child in a public school class room. In the model, x is the air space per child in cubic feet and y is the ventilation rate per child in ...

*March 31, 2011 by Ashlie*

**math**

The cost of carpeting a room 15m long with a carpet 70cm wide at Rs.8 per metre is Rs 1920.Find the bredth of the room.

*June 25, 2008 by Ayushi*

**Math**

A rectangular room measures 15ft by 21ft. How much will it cost to carpet this room if carpeting costs $17.95 per square yard?

*January 10, 2012 by Sara*

**circumference...math**

A Ferris wheel makes 12 revolutions per ride. How far would someone travel during one ride if the diameter is 63 feet?...thanks!

*February 4, 2016 by Martha*

**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*

**physics!**

A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. Such a device is used in medical laboratories, for instance, to cause the more dense red blood cells to settle through the less dense blood serum and collect at the ...

*February 14, 2011 by Gina*

**Physics**

A centrifuge is a device in which small container of material is rotated at a high speed on a circular path. Such a device is a used in medical laboratories, for instance, to cause the more dense red blood cells to settle through the less dense blood serum and collect at the ...

*July 15, 2011 by Kelli*

**Physics**

A centrifuge is a device in which small container of material is rotated at a high speed on a circular path. Such a device is a used in medical laboratories, for instance, to cause the more dense red blood cells to settle through the less dense blood serum and collect at the ...

*July 15, 2011 by Kelli*

**Physics!!**

A centrifuge is a device in which small container of material is rotated at a high speed on a circular path. Such a device is a used in medical laboratories, for instance, to cause the more dense red blood cells to settle through the less dense blood serum and collect at the ...

*July 18, 2011 by Kelli*

**physics**

A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. Such a device is used in medical laboratories, for instance, to cause the more dense red blood cells to settle through the less dense blood serum and collect at the ...

*February 22, 2012 by Natasha*

**Physics**

A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. Such a device is used in medical laboratories, for instance, to cause the more dense red blood cells to settle through the less dense blood serum and collect at the ...

*October 3, 2013 by Tyler*

**physics**

A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. Such a device is used in medical laboratories, for instance, to cause the more dense red blood cells to settle through the less dense blood serum and collect at the ...

*January 26, 2017 by Tyler*

**math**

In a room of 20.000 ft^3 of air, 600 ft^3 of fresh air flows in per minute, and the mixture (made practically inform by circulating fans) is exhausted at a rate of 600 cubic feet per minute (cfm). What is the amount of fresh air inside the room y(t) at any time, if y(0)=0? ...

*August 8, 2012 by deel*

**physics**

The angular speed of the rotor in a centrifuge decreases from 226 to 186.0 rev/s with an angular deceleration of 6.4 rev/s2. During this period, how many revolutions does the rotor turn?

*July 29, 2013 by mike*

**physics**

As their booster rockets separate, Space Shuttle astronauts typically feel accelerations up to 3g, where g = 9.80 m/s2. In their training, astronauts ride in a device where they experience such an acceleration as a centripetal acceleration. Specifically, the astronaut is ...

*February 17, 2011 by kia*

**phy**

As their booster rockets separate, Space Shuttle astronauts typically feel accelerations up to 3g, where g = 9.80 m/s2. In their training, astronauts ride in a device where they experience such an acceleration as a centripetal acceleration. Specifically, the astronaut is ...

*February 17, 2011 by kia*

**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*

**math**

Two restaurants have rooms to rent for dinner parties. One restaurant charges $100 to rent a room and $20 per person. The other restaurant charges $25 to rent the room and $25 per person. Which of the following is the number of people for which the cost of a dinner party would...

*July 13, 2014 by Roberta*

**math**

Mr Thomas wants to carpet his bed room. The size of the bed room is 15 feet x 27 feet. The carpet sells for $8.95 per square yard,installed. How much will he have to spend to carpet the bed room?

*March 27, 2012 by paul*

**PHYSICS**

Consider a classroom 10.0m long by 6.0m wide by 4.0m high at "room temperature" 20.C and 1.0 atmosphere. A) How many moles of gas are contained in the room? B) Assuming an average molecular weight of 28, what is the mass of the room air?

*May 7, 2015 by Physics*

**physics**

If each of the three rotor helicopter blades is L = 3.69m long and has a mass of m = 159kg, calculate the moment of inertia of the three rotor blades about the axis of rotation.

*November 11, 2014 by katherine*

**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*