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April 21, 2014

Search: A factory worker pushes a 31.0 kg crate a distance of 5.3 m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic friction between the crate and floor is 0.25

Number of results: 2,222

PHYSICS
A factory worker pushes a 30.7 crate a distance of 4.0 along a level floor at constant velocity by pushing downward at an angle of 31 below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.26. What magnitude of force must the worker apply to...
Thursday, October 11, 2012 at 11:35am by HANNE

History
Imagine you are one of the factory workers at Lowell Mills tasked with creating the headline story for this month’s factory newspaper. Factory Workers—Factory Worker Template 1. First paragraph: Hook your reader into wanting to read your article. Explain the conditions and ...
Monday, March 11, 2013 at 10:28am by Anonymous

math
at a certain factory each worker either drives to work or take the bus. the ratio of worker who take the bus to those who drive to work is 2:5. if 120 worker drive to work how many workers are there at the factory?
Thursday, May 16, 2013 at 10:15pm by sara

12
A factory’s worker productivity is normally distributed. One worker (worker 1) produces an average of 75 units per day with a standard deviation of 20. Another worker (worker 2) produces at an average rate of 65 per day with a standard deviation of 21. What is the probability ...
Tuesday, May 1, 2012 at 7:54am by SB

U.S History
Imagine you are one of the factory workers at Lowell Mills tasked with creating the headline story for this month’s factory newspaper. Factory Workers—Factory Worker Template 1. First paragraph: Hook your reader into wanting to read your article. Explain the conditions and ...
Friday, March 7, 2014 at 12:30pm by #1Student

statistics
A widget factory's worker productivity is normally distributed. one worker produces an average of 75 widgets per day with a standard deviation of 20. another worker produces at an average rate of 65 per day with standard deviation of 21. 1)what is the probability that in any ...
Sunday, April 29, 2012 at 2:08pm by Anonymous

M361
A factory worker productivity is normally distributed. worker A produces an average of 84 units per day with a standard deviation of 24. worker B produces at an average rate of 74 units per day with stanard deviation of 25. (a) what is the probability that in any single day ...
Sunday, April 7, 2013 at 3:08am by mercy

Science
A factory worker pushes a 29.2kg crate a distance of 4.1m along a level floor at constant velocity by pushing downward at an angle of 28* below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25.
Monday, March 17, 2014 at 7:02pm by Garrett

Statistics
Is this right? and how can I break it down if needed? A factory’s worker productivity is normally distributed. One worker produces an average of 75 units per day with a standard deviation of 20. Another worker produces at an average rate of 65 per day with a standard deviation...
Friday, February 11, 2011 at 10:37pm by Kimberly

Physics
A factory worker pushes a 29.2kg crate a distance of 4.1m along a level floor at constant velocity by pushing downward at an angle of 28 degrees below the horizontal. The coefficient of kinetic friction between the crate and floor is 0.25. (a) What magnitude of force must the ...
Monday, March 17, 2014 at 7:04pm by Garrett

probability and statistics
Is this right? and how can I break it down if needed? A factory’s worker productivity is normally distributed. One worker produces an average of 75 units per day with a standard deviation of 20. Another worker produces at an average rate of 65 per day with a standard ...
Sunday, January 9, 2011 at 1:04pm by Ann

calculus
factory worker wages, according to data released by city chamber of commerce, the weekly wages of factory workers are normally distributed according to the probability density function f(x)= (1/50√2π)e^((-1/2)((x-500)/50)^2) find the probability that a worker ...
Monday, June 4, 2012 at 4:22am by soffy

statistics
the mean and the standard deviation of the wages of 1000 factory workers are $20,600 and $2,400 respectively. if a worker's annual wage is $20,000, find and interpret the worker's sample z-score.
Thursday, April 7, 2011 at 11:24am by lisa

physics
A worker pushes a wheelbarrow with a force of 40 N over a level distance of 6.0 m. If a frictional force of 24 N acts on the wheelbarrow in a direction opposite to that of the worker, what net work is done on the wheelbarrow?
Wednesday, November 17, 2010 at 8:52pm by Anonymous

science
a worker pushes a box with a horizontal force of 50 N over a level distance of 5m. If a frictional force of 43 N acts on the box in a direction opposite to that of the worker, what was the net work done to the box?
Sunday, March 6, 2011 at 5:42pm by KayKay

Math
How do you figure percentages? Question: If a factory worker is supposed to produce 1000 units an hour but only produces 568 units, what percentage did the worker produce? How do you figure this?
Saturday, September 29, 2007 at 7:03pm by Tim

HELP PHYSICS!!!!
a worker pushes a 7kg shipping box along a roller track. assume friction is small enough to be ignored because of the rollers. the worker's push is 25 N directed down and to the right at an angle of 20 degrees. 1. determine the horizontal component of the worker's push 2. ...
Wednesday, February 29, 2012 at 8:34pm by C.

World History
What is the life of a factory worker in the US like?
Sunday, March 7, 2010 at 12:08pm by Robert

calculus
according to data released by the chamber of commerce of a certain city, the weekly wages of female factory workers are normally distributed with a mean of 575 and a standard deviation of 50. Find the probability that a female factory worker selected at random from the city ...
Tuesday, June 12, 2012 at 8:44am by soffy

physics. please help
A worker pushes a 820 N crate with a horizontal force of 345 N a distance of 24 m. Assume the coefficient of kinetic frictin between the crate and the floor is 0.22. a) How much work is done by the worker on the crate? b) How much work is done by the floor? c) What is the net ...
Thursday, December 9, 2010 at 9:49pm by Alecia

physics
A stock room worker pushes a box with mass 11.2 kg on a horizontal surface with a constant speed of 4.50 m/s. The coefficient of kinetic friction between the box and the surface is 0.25. a) What horizontal force must be applied by the worker to maintain the motion? b) If the ...
Wednesday, December 8, 2010 at 7:18am by Yosh

ela
how many people worked at the Triangle Factory ( the factory that was famous for waste and the factory caught on fire on March 25, 1911)
Tuesday, September 18, 2012 at 5:13pm by catarina

ela
i meant to say how many people at the triangle factory (THE FACTORY THAT WAS FAMOUS FOR MAKING SHIRTWAISTS AND THE FACTORY CAUGHT ON FIRE ON MARCH, 25 1911) worked there?
Tuesday, September 18, 2012 at 5:13pm by catarina

physical science
A worker pushes horizontally on a large crate with a force of 312 N, and the crate is moved 6.5 m. How much work was done?
Saturday, February 11, 2012 at 6:38pm by Anonymous

math
3 workers picked 66 bushels of peaches. The 1st worker picked 3 times more than the second worker and 2 times more than the 3rd worker. How many bushels did the second most productive worker pick? Let the number of bushels picked by the second worker be x. The first worker ...
Tuesday, April 10, 2007 at 10:03am by LOis

physics
A cable is lifting a construction worker and a crate The weights of the worker and crate are 915 and 1430 N, respectively. The acceleration of the cable is 0.620 m/s2, upward. what is the tension in the cable below the worker? what is it above the worker?
Saturday, December 4, 2010 at 1:26am by hy

maths linear programming
alright.. this is the question i got.. JJ Manufacturing has three factories (1,2,3) and three distribution centers (A,B,C). shipping costs from the factories to the distrubution centers is as follows from factory 1 to center A: $6 from factory 2 to center A: $8 from factory 3 ...
Monday, November 23, 2009 at 10:21am by dave

math
alright.. this is the linear programming question i got.. JJ Manufacturing has three factories (1,2,3) and three distribution centers (A,B,C). shipping costs from the factories to the distrubution centers is as follows from factory 1 to center A: $6 from factory 2 to center A...
Tuesday, November 24, 2009 at 5:25am by dave

physics
A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 833 N and 1380 N, respectively. The acceleration of the cable is 0.620 m/s2, upward. What is the tension in the cable (a) below the worker and (b) above the ...
Thursday, July 25, 2013 at 7:01pm by tcc

Social Studies
Could you check this answer that goes with this passage. It was... the greatest aggregation of labor and capital eber gathered in one place. It employed 30,000 men; it supported directly 250,000 people in its neighborhood, and indirectly it supported 500,000. It sent its ...
Monday, March 23, 2009 at 6:20pm by Sam

general physics
A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 833 N and 1380 N, respectively. The acceleration of the cable is 0.620 m/s2, upward. What is the tension in the cable (a) below the worker and (b) above the worker?
Monday, July 22, 2013 at 6:48pm by ODU

PROBABILITIES
Factories A and B produce computers. Factory A produces 3 times as many computers as factory B. The probability that an item produced by factory A is defective is 0.037 and the probability that an item produced by factory B is defective is 0.05. A computer is selected at ...
Thursday, December 2, 2010 at 12:32am by cmb

Physics- Work
A worker pushes a 1.50*10^3 N crate with a horizontal force of 345 N a distance of 24.0 m. Assume the coefficient of kinetic friction between the crate and the floor is 0.220. a. How much work is done by the worker on the crate? b. How much work is done by the floor on the ...
Wednesday, October 27, 2010 at 11:31pm by Pablo

Probability
Factories A and B produce computers. Factory A produces 2 times as many computers as factory B. The probability that an item produced by factory A is defective is 0.012 and the probability that an item produced by factory B is defective is 0.04. A computer is selected at ...
Tuesday, April 26, 2011 at 5:22pm by Julie

math
A company has two factories that manufacture tires. Suppose 65% of the tires are manufactured in factory 1 and 35% are manufactured in factory 2. In factory 1, 5% of the tires are defective. In factory 2, 2% of the tires are defective. a) Determine the probability that a ...
Monday, May 23, 2011 at 7:44pm by corey

physics
A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 930 and 1640 N, respectively. The acceleration of the cable is 0.620 m/s2, upward. (a) What is the tension in the cable below the worker? (b) What is the tension...
Monday, February 15, 2010 at 10:57pm by tiffany

Physics
A cable is lifting a construction worker and a crate, as the drawing shows. The weights of the worker and crate are 961 and 1540 N, respectively. The acceleration of the cable is 0.620 m/s2, upward. (a) What is the tension in the cable below the worker? (b) What is the tension...
Monday, September 20, 2010 at 7:50pm by Sarah

Physics
A worker pushes 25Kg crate a distance of 5m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic frication between the crate and the floor is 0.23. (a) What magnitude of force must the worker apply? (b) How much work is done on the...
Wednesday, November 2, 2011 at 9:00am by Abdul Waheed

child day care
Jean Piaget was a A. factory worker. B. pediatrician C. developmental psychologist. D. child care provider.
Wednesday, September 12, 2012 at 2:22pm by katie

Physics
Question # 1 Marks = 12 A worker pushes 25Kg crate a distance of 5m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic frication between the crate and the floor is 0.23. (a) What magnitude of force must the worker apply? (b) How ...
Tuesday, November 1, 2011 at 12:52pm by M. Yousaf Khan

Math
A company that produces a particular machine component has 3 factories, one each in Buffalo, Detroit, and Pittsburgh. 39% of the components produced come from the Buffalo factory, 36% of the components come from the Detroit factory, and 25% of the components come from the ...
Thursday, March 22, 2012 at 9:04pm by Sammy

Math
A company that produces a particular machine component has 3 factories, one each in Buffalo, Detroit, and Pittsburgh. 39% of the components produced come from the Buffalo factory, 36% of the components come from the Detroit factory, and 25% of the components come from the ...
Friday, March 23, 2012 at 2:53am by amy

ELA
Wood was the standard flooring at that time -- and in many buildings for years afterward. Worker safety was not very important to the factory owners. Most school buildings I attended and in my first teaching had wooden floors.
Tuesday, September 18, 2012 at 5:28pm by Ms. Sue

college physics
Two workers are loading crates onto a pick up truck. Worker 1 lifts his crate straight up from the ground to the truck. Worker 2 slides his crate up a ramp which has frictionless rollers. Which statement is true about the work being done on the crate? a. Worker 1 does more ...
Tuesday, October 5, 2010 at 11:35am by matt

Geography
You need to open a new clothing factory to keep up with the demand for your clothing in the United States. You have looked into building the factory in Trinidad and Tobago. Would your factory likely be able to find enough workers? Explain your answer.
Wednesday, May 4, 2011 at 8:27pm by Naomi

Accounting
During the period, labor costs incurred on account amounted to $250,000 including $200,000 for production orders and $50,000 for general factory use. In addition, factory overhead applied to production was $23,000. From the following, select the entry to record the factory ...
Saturday, June 22, 2013 at 11:53pm by Anonymous

algebra
Worker efficiency. In a study of worker efficiency at Wong Laboratories it was found that the number of components assembled per hour by the average worker t hours after starting work could be modeled by the formula N(t)=-3t+23t^2+8t
Monday, July 13, 2009 at 5:23pm by Sandra

Int Alegbra
2 more problems - Factory is to be bulit on a lot 180 x 240 . Local building code - specifies that lawn uniform width and equal in area of the factory which it surrounds. What must the width of this lawn be? Dimensions of the factory.
Sunday, September 30, 2007 at 3:02pm by jane

History
I'm sure the purpose of this assignment is for you to imagine what conditions were like for industrial workers then. You could start by asking the worker where he or she works (answers might be textile factory or coal mine). Other questions could be about working hours, days; ...
Thursday, December 17, 2009 at 4:31pm by Ms. Sue

physics
a worker pushes a 1420 N crate with a horizontal force of 420 N a distance of 27m. assume the coefficient between the crate and the floor is 0.22. what is the net force done on the crate?
Monday, December 16, 2013 at 11:08am by Anonymous

physics
You are designing a hydraulic lift for an automobile garage. It will consist of two oil-filled cylindrical pipes of different diameters. A worker pushes down on a piston at one end, raising the car on a platform at the other end. To handle a full range of jobs, you must be ...
Monday, February 23, 2009 at 1:59am by kate

accounting
prepare entries to record the following summarized operations related to production for a company using a job order cost system: a. materials purchased on account-$167000 b. prepaid expenses incurred on account-$12200 c. materials pequisitioned: for production orders-$153700 ...
Friday, April 1, 2011 at 7:34pm by Tonya

Managerial Accounting
The gross earnings of the factory workers for Vargas Company during the month of January are $66,000. The employer’s payroll taxes for the factory payroll are $8,000. The fringe benefits to be paid by the employer on this payroll are $6,000. Of the total accumulated cost of ...
Wednesday, May 9, 2012 at 2:05pm by Anonymous

Life orientation
1every worker ned 2 tk a break after 5hrs...2every worker should be paid 4 working on holidays...3every worker has a right 2 say no 2 his/her boss if they are requested 2 work after working hrs
Tuesday, February 28, 2012 at 4:36pm by Thapelo

HISTORY!! help plz and thannks
what are protective tariffs and the factory system? I want to know what a factory system si because the question is Why was the factory system beneficial to Canadians. help plz and thank u!
Sunday, March 8, 2009 at 10:23pm by beecca

Economics
Suppose the production function is Y = 100(K3/10)(EN)7/10 and capital lasts an average of fifteen years. The rate of population growth is 0.5%. The rate of technological progress is 2.5%. The saving rate is 5%. A. Derive the equation for output per effective worker y = Y/EN = ...
Tuesday, November 22, 2011 at 8:49pm by Matty

Physics
*I really don't know how to get started. I have done lots of the homework, but this one (and a couple of others) are really giving me PROBLEMS.* A stockroom worker pushes a box with a mass 10.5 kg on a horizontal surface with a constant speed of 3.00 m/s. The coeffecients of ...
Sunday, October 1, 2006 at 11:34am by John

Physics
Three men are trying to move a wardrobe. One pushes northward with a force of 100N; the second pushes eastward with a force of 173N; the third pushes in a direction 60 degrees west of south with a force of 200N. What is the resultant force on the wardrobe and it's direction?
Tuesday, September 11, 2012 at 8:20am by Amber

Matth
A farmer died and left 17 cows to be divided among three workers. The first worker was to receive of the cows, the second worker was to receive of the cows, and the third worker was to receive of the cows. The executor of the farmer’s estate realized that 17 cows could not be ...
Wednesday, December 17, 2008 at 12:21pm by fay1985

economic help please
A factory closure is when a company closes a factory.
Saturday, October 23, 2010 at 2:52pm by Ms. Sue

Math
an assembly line worker at Rob's Bicycle factory adds a seat to a bicycle at a rate of 2 seat in 11 minutes. At this rate, how long will it take to add 16 seats? 19 seats?
Sunday, February 3, 2013 at 9:44pm by Charity Harvey

science-physics
A worker sits at one end of a 183-N uniform rod that is 2.80 m long. A weight of 107 N is placed at the other end of the rod. The rod is balanced when the pivot is 0.670 m from the worker. Calculate the weight of the worker
Wednesday, May 15, 2013 at 1:51am by karen

accounting
2. Illustrate effects on the accounts and financial statements of each of the following transactions. For a company using a job order cost system: (a) Materials purchased on account $176,000 (b) Materials requisitioned: For production orders $161,500 For general factory use $8...
Thursday, November 12, 2009 at 11:01pm by shawna

science
A worker drags a crate across a factory floor by pulling on a rope tiedto the crate. The worker exerts a force of 450 N on the rope, which is inclined at 38 degrees to the horizontal and teh floor exerts a horizontal force of 125 N that opposes the motion. Calculate the ...
Sunday, November 12, 2006 at 12:08pm by Chris

PHYSICS
A warehouse worker pushes a crate along the floor, as shown in the figure , by a force of 10.0 N that points downward at an angle of 45.0 degree below the horizontal. A. Find the horizontal component of the push. B.Find the vertical component of the push.
Wednesday, February 2, 2011 at 4:45pm by mely

physics
A warehouse worker pushes a crate along the floor, as shown in the figure , by a force of 10.0 N that points downward at an angle of 45.0 degree below the horizontal. A. Find the horizontal component of the push. B.Find the vertical component of the push.
Wednesday, February 2, 2011 at 8:25pm by andrea

biolagy
in some ways, a cell is analogous to a factory. create an analogy describing the job of a lysosome within a cellular "factory"
Wednesday, November 28, 2007 at 10:06pm by brian

Physical sciences
A factory siren emits a sound at 900hz.what frequency will be heard by the driver of a car traveling at 100km.h away from the factory?
Wednesday, April 16, 2014 at 12:39pm by Precious

physics
two kids push on a 10kg box. one pushes 100N to the west and the other pushes north at 200N. what is the acceleration of the pbject?
Monday, October 22, 2012 at 4:46pm by me

grammar
So you are saying I should remove both and the correct way is I am a Quick worker and a careful worker?
Tuesday, May 10, 2011 at 12:50pm by nichole

arithmetic
A job is shared by 4 workers, W, X, Y, and Z. Worker W does 1/4 of the total hours. Worker X does 1/3 of the total hours. Worker Y does 1/6 of the total hours. What fraction represents the remaining hours allocated to person Z?
Monday, February 22, 2010 at 6:30pm by kenzie

HISTORY!! help plz and thannks
Protective tariffs are taxes charged by the government on imported goods. Check this site for the factory system. http://www2.sunysuffolk.edu/westn/factory.html
Sunday, March 8, 2009 at 10:23pm by Ms. Sue

physics
A pushes with force of 300 N at 25 degrees. B pushes with force of 275 N at 160 degrees. C pushes with force of 325 N at 300 degrees. Find resultant force. I got 187 N at -19 degrees or 161 degrees. Correct? or could you explain more please? Thank you.
Sunday, November 7, 2010 at 5:53pm by Anonymous

physics
A man pushes on a piano of mass 180 so that it slides at a constant velocity of 12.0 down a ramp that is inclined at 11.0 above the horizontal. No appreciable friction is acting on the piano. Calculate the magnitude and direction of this push A. if the man pushes parallel to ...
Monday, November 8, 2010 at 5:12pm by bob

statistics
the mean height of 25 male workers in a factory is 161 cm and the mean height of 35 female workers in the same factory is 158 cm. find the combined mean of 60 workers in the factory.
Saturday, August 6, 2011 at 9:23am by Anonymous

economics
A firm has two factories, one twice as large as the second. As the number of workers at each factory increases, which factory will experience diminishing returns first?
Monday, October 29, 2007 at 8:35pm by anonymous

economics
a firm has two factories, one twice as large as the second. as the number of workers at each factory increases, which factory will experience diminishing returns first
Saturday, May 8, 2010 at 8:58am by jons

economics
A firm has two factories, one twice as large as the second. As the number of workers at each factory increases, which factory will experience diminishing returns first?
Monday, July 12, 2010 at 11:54am by Anonymous

Physics
A worker drags a crate across a factory floor by pulling on a rope tied to the crate. The worker exerts a force of 450 N on the rope, which is inclined at 38° to the horizontal, and the floor exerts a horizontal force of 125 N that opposes the motion. Calculate the ...
Saturday, February 3, 2007 at 10:54pm by COFFEE

math
answer to the melt in your mouth chocolate factory opens its doors each day at 7:00am. sharp. sally arrived at the factory ten minutes before the doors opened. Lucke got there eighteen minutes after sally, but four minutes before Michelle.at what time did Michelle arrive at ...
Tuesday, September 4, 2012 at 9:18pm by Anonymous

Finance
A company wants to build a new factory for increased capacity. Using the net present value (NPV) method of capital budgeting, determine the proposal’s appropriateness and economic viability with the following information: • Building a new factory will increase capacity by 30...
Thursday, November 18, 2010 at 12:28pm by Anonymous

finance
A company wants to build a new factory for increased capacity. Using the net present value (NPV) method of capital budgeting, determine the proposal’s appropriateness and economic viability with the following information: • Building a new factory will increase capacity by 30...
Thursday, November 18, 2010 at 12:30pm by liza

physics
A pushes with force of 300 N at 25 degrees. B pushes with force of 275 N at 160 degrees. C pushes with force of 325 N at 300 degrees. Find resultant force.
Sunday, November 7, 2010 at 2:22pm by Anonymous

Science
An Olympic bobsledder pushes a 200 kg bobsled at 8 m/s. If the man pushes with a force of 1200 N, how much force of friction is present?
Tuesday, November 8, 2011 at 9:19pm by Kyle

Managerial Accounting
The gross earnings of the factory workers for Vargas Company during the month of January are $66,000. The employer’s payroll taxes for the factory payroll are $8,000. The fringe benefits to be paid by the employer on this payroll are $6,000. Of the total accumulated cost of ...
Wednesday, May 9, 2012 at 2:05pm by SFC Triplett Larry A

Physics
A man pushes on a piano of mass 180 kg so that it slides at a constant velocity of 12.0 cm/s down a ramp that is inclined at 11.0degrees above the horizontal. No appreciable friction is acting on the piano. Calculate the magnitude and direction of this push (a)if the man ...
Thursday, November 11, 2010 at 5:14pm by Carmen

accounting
1. Present entries to record the following summarized operations related to production for a company using a job order cost system: Please put a DR before your debits and and CR before credits and enter between each entry. (a) Materials purchased on account $167,000 (b) ...
Tuesday, July 24, 2012 at 7:54pm by Kassai

Math
An assembly line worker at rob's bicycle factory adds a seat to a bicycle at a rate of 2 seats in 11 minutes. Write a proportion relating the number of seats s to the number of minutes m. At this rate how long will it take to add 16 seats? 19 seats?
Wednesday, September 12, 2012 at 5:32pm by Hannah

statistics
The breakdown of workers in a particular state according to their political affiliation and type of job held is shown here. Suppose a worker is selected at random within the state and the worker's political affiliation and type of job are noted. Given the worker is a Democrat...
Tuesday, November 8, 2011 at 4:39pm by ify

physics
A worker stands still on a roof sloped at an angle of 23° above the horizontal. He is prevented from slipping by a static frictional force of 540 N. Find the mass of the worker.
Thursday, February 3, 2011 at 8:27pm by Anonymous

Corporate Finance
A company wants to build a new factory for increased capacity. Using 3 capital budgeting methods, make a determination about the economic viability of the proposal using the following information. Building a new factory will increase capacity 30% Current capacity is $10 ...
Sunday, May 16, 2010 at 9:09pm by Linda

social worker
hey there i wanna b a social worker wen i reach grade 10. so which subjects should i choose?
Thursday, January 7, 2010 at 6:53pm by zinhle ntsebezo

social studies
if you own a factory the factory and any equipment in it are part of your... answer is 7 letters fourth letter is an i... i have been through everything in my study guide and cannot find the answer for this one...
Sunday, November 14, 2010 at 9:30pm by emily

phy
At a factory, a noon whistle is sounding with a frequency of 484 Hz. As a car traveling at 77 km/h approaches the factory, the driver hears the whistle at frequency fi. After driving past the factory, the driver hears frequency ff. What is the change in frequency ff − fi...
Friday, April 12, 2013 at 9:59pm by kira

Physics
A person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 26.0 m. She pushes in a direction 22.0° below the horizontal. A 38.0-N frictional force opposes the motion of the cart.
Sunday, November 11, 2012 at 6:29am by D

Physics
A person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 20.0 m. She pushes in a direction 28.0° below the horizontal. A 54.0-N frictional force opposes the motion of the cart.
Thursday, October 10, 2013 at 9:05pm by Donna

physics
A person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 20.0 m. She pushes in a direction 28.0° below the horizontal. A 54.0-N frictional force opposes the motion of the cart.
Friday, October 11, 2013 at 9:53pm by Donna

Statistics
A company has two factories in which they manufacture engines. Once a month they randomly select 10 engines from each factory and test if there is a difference in performance in engines made in the two factories. This month the average output of the motors from Factory 1 is ...
Monday, June 18, 2012 at 10:55pm by Mike

geology(science) am i correct
the sea floor spreads when lava rises from cracks and cools from the water therefore pushes the old floor towards the continents and pushes them making them move 1 to 24 centimeters every year
Friday, March 13, 2009 at 9:31pm by sami

Predict
In 1955 each farm worker in the United States produced enough food to feed 20 people. By 1960 farming methods had improved, and one worker could supply 25 people. By 1965 that number became 40 people. In 1970 it was 45 people.In 1975 it increased to 60 people. In 1980 one farm...
Tuesday, November 1, 2011 at 8:04pm by Bob

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