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April 28, 2015

Search: A cubic box of volume 3.7 10-2 m3 is filled with air at atmospheric pressure at 20°C. The box is closed and heated to 185°C. What is the net force on each side of the box?

Number of results: 49,782

Chemistry
Each of 2 front tires in the car is filled with a different gas. One tire contains 116 g of helium, another tire has 160 g of unknown gas. How many times heavier is a molecule of the unknown gas than an atom of helium?
November 10, 2012 by Christina

chem
3. Each of 2 front tires in the car is filled with a different gas. One tire contains 116 g of helium, another tire has 160 g of unknown gas. How many times heavier is a molecule of the unknown gas than an atom of helium?
April 13, 2013 by Anonymous

science
The cider is heated from an initial temperature of 4°C to a final temperature of 65°C. The steam enters the heat exchanger as 50% quality steam and exits as water condensate at 85°C. Calculate the mass of steam required to heat 150 kg of cider. (For the cider, assume the Cp=3....
July 16, 2014 by na

Chemistry
I havent been at school for 8 days due to somthing wrong with my heart, but the teachers gave me work. I have no clue how to do them. I really need help please, There all due tomarrow. A 2.00L flask is filled with propane gas(C3H8)at 1.00atm and 15C. What is the mass of ...
April 5, 2010 by Help please

Physics
You and your friend throw balloons filled with water from the roof of a several story apartment house You simply drop a balloon from rest. A second balloon is thrown downward by your friend 2.1seconds later with an initial speed of 41.6m/seconds. they hit the ground at the ...
September 16, 2012 by Kimberly

English
Can you please check these sentences for me? It's really urgent. 1) At eighteen you can get married without your parents' permission. At eighten years of age/When you are eighteen ... (are they both correct?) 2) You can't get married without your parents' permission until you ...
March 30, 2011 by Mike

environmental engineering /hydrology
estimate the volume of water that will infiltrate into a soil before surface saturation occurs using the Green-Ampt equation.The following data are known ; 1-saturated moisture content is 0.25 2-the initial moisture content is 0(zero) 3-the average rainfall rating is 2 in./hr ...
December 6, 2011 by aysegul

physcs (Geometry bit)
how do you prove that an object on a ramp resolved into it's gravity components were the x dreiction is down the ramp and the y direction is the direciton of the normal force Force of gravity x component /\ |Normal force <_____| | /|OBJECT | /1| |2 / |Force of graviy | /Fg...
August 10, 2009 by physcs (Geometry bit)

Pre-calculus
Nathaniel pulls a sled along level ground with a force of 30 newtons on the rope attached to the sled. If the rope makes an angle of 20 degrees with the ground when it is pulled taught, find the horizontal and vertical components of the force. Round to the nearest tenth. ...
October 19, 2008 by Lucy

Physics
There is a bicycle wheel resting against a small step whose height is h = 0.132 m. The weight and radius of the wheel are W = 27.3 N and r = 0.324 m, respectively. A horizontal force is applied to the axle of the wheel. As the magnitude of increases, there comes a time when ...
November 16, 2012 by 4319

physical science
A man pulls a lawnmower with a mass of 50 kilogram accross a lawn, its pulling force is 400 newtons at angle of 50 degrees with a horizontal line.(a) resolve the force into two components , one parallel to the ground and one perpendicular to the ground .(b) explain why it is ...
February 2, 2013 by Pertunia

Chemistry
Calculate the molarity of the HCl from the volumes of acid and base and the molarity of the NaOH. Use the following equation: (molarity of acid)x(volume of acid)=(molarity of base)x(volume of added base) equivalance point=number of mL of base to an acid 1mL=0.001L HCl volume=...
February 20, 2008 by Brad

Math
the pet shop owner told jean to fill her new tank 3/4 full with water. Jean filled it 9/12 full. what fraction of the tank does Jean still need to fill?
February 23, 2013 by Lissette

Data manegment
From 7 candidates of which 4 are males and 3 are females,how many ways can the positions of president,vice-president and Treasurer be filled if the president must be female and the other two positions must be males.
March 8, 2014 by Nisarg

math
exactly how many cubic inches of ice cream can an ice cream cone hold (within the cone) if its height is 6 inches and the radius of its base is 2.5 inches? include correct units with the solution. use "pi" in place of the pi symbol.
July 3, 2011 by jenna

Physics....Orbiting Satellite
A orbiting satellite stays over a certain spot on the equator of (rotating) Venus. What is the altitude of the orbit (called a "synchronous orbit")? I found the radius and mass of Venus on the google, but I don't know what I should plug in the "T" if I use the Kepler's 3rd law...
January 15, 2007 by Jessy

Chem
Im studying for the MCAT and i found this question in my old chem book. i can't figure out how to derive the formula they are talking about... Nitrogen monoxide reacts with oxygen to give nitrogen dioxide. 2 NO(g)+ O2(g) --> 2 NO2(g) The rate law is -[NO]/t...
August 4, 2014 by Jesse

Chem
Im studying for the MCAT and i found this question in my old chem book. i can't figure out how to derive the formula they are talking about... Nitrogen monoxide reacts with oxygen to give nitrogen dioxide. 2 NO(g)+ O2(g) --> 2 NO2(g) The rate law is -[NO]/t...
August 4, 2014 by Jesse

Physics
A particle has a charge of +1.5 µC and moves from point A to point B, a distance of 0.18 m. The particle experiences a constant electric force, and its motion is along the line of action of the force. The difference between the particle's electric potential energy at A and B ...
January 12, 2011 by ali

physics
Beth, a construction worker, attempts to pull a stake out of the ground by pulling on a rope that is attached to the stake. The rope makes an angle of 60.0 degrees with the horizontal. Beth exerts a force of 125 N on the rope. What is the magnitude of the upward component of ...
November 11, 2009 by sarah

Physics
Beth, a construction worker, attempts to pull a stake out of the ground by pulling on a rope that is attached to the stake. The rope makes an angle of 65.6 ◦ with the horizontal. If Beth exerts a force of 162.2 N on the rope, what is the magnitude of the upward ...
November 16, 2011 by Anonymous

Ancient civilization
What is a translucent stone used in floor slabs in ancient egyptian civilization? If you'll go to http://www.google.com and enter translucent stone egyptian, you'll find the answer. =) http://touregypt.net/magazine/mag06012001/magf5.htm
May 22, 2007 by Joshua

Chemistry
n our text book the following equation is given: P=(pm - p)g * R where P is the pressure drop R is the manometer reading pm is the density of the manometer fluid p is the density of the process fluid in the pipe g is the acceleration do due to gravity Then our professor told ...
November 3, 2011 by Bella

Chemistry
The experimentally measured and generally accepted value for the molar volume of Na is about 23 cm3/mol. Which of the following best explains why the value calculated in Part B is significantly smaller than the measured values? Part B Answer 16.3 cm3/mol Which one would it be...
April 8, 2013 by Morgan

English-Brave New World
I need help getting different perspectives on this book for a class discussion..please help me!! Thank you for using the Jiskha Homework Help Forum. Here are some sites on Brave New World to help you: 1. http://en.wikipedia.org/wiki/Brave_New_World (Imagine, it was written in ...
May 19, 2007 by Sara

Social Studies
On a global scale, where is precipitation most common? http://encarta.msn.com/encnet/RefPages/RefMedia.aspx?refid=461530746&vv=450 http://www.physicalgeography.net/fundamentals/8g.html For ocean and continents
November 16, 2006 by Maxy

Physics
A regulation volleyball court is L = 18.0 m long and a regulation volleyball net is d = 2.43 m high. A volleyball player strikes the ball a height h = 1.76 m directly above the back line, and the ball's initial velocity makes an angle q = 55° with respect to the ground. From ...
November 12, 2007 by Lindsay

biology
List of insects and their scientific names. There are over one million species of insects in the world. It would be impractical to give you a full list. Here is a good place to start: http://www.earthlife.net/insects/six01.html Thank you for using the Jiskha Homewwork Help ...
July 8, 2007 by klar maesen

Economics
What do you think are the pluses (advantages) and minuses (disadvantages) when firms have market power? Be sure to explain your answer from a consumer and a firm’s point of view. why did ESPRIT closed all stores in the U.S. Include a few of these word Diseconomies of scale ...
June 27, 2013 by Megan

Economics
What do you think are the pluses (advantages) and minuses (disadvantages) when firms have market power? Be sure to explain your answer from a consumer and a firm’s point of view. why did ESPRIT closed all stores in the U.S. Include a few of these word Diseconomies of scale ...
June 27, 2013 by Megan

Physics
Two identical resistors are connected in parallel across a 26-V battery, which supplies them with a total power of 9.8 W. While the battery is still connected, one of the resistors is heated so that its resistance doubles. The resistance of the other resistor remains unchanged...
February 12, 2015 by Anonymous

calc
Gravel is being dumped from a conveyor belt at a rate of 30 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always the same. How fast is the height of the pile increasing when the pile is 18 feet high?
November 26, 2011 by crystal

Chemistry
A certain mine produces 2.5 108 kg of copper from chalcopyrite (CuFeS2) each year. The ore contains only 0.80% Cu by mass. (a) If the density of the ore is 2.0 g/cm3, calculate the volume of ore removed each year. (b) Calculate the mass of SO2 produced by roasting (assume ...
April 13, 2007 by Chemistry

Chemistry
a 5.00 gram sample of a metal is heated to 80 degrees Celsius and is placed in a 100 gram sample of water. the temperature of the water rises from 20 Celsius to 20.3 Celsius which of these is most likely to be the metal
April 12, 2015 by Hazard

Chemistry
4) Using your initial mass of copper (0.38), calculate the minimum volume of concentrated 12M nitric acid needed to completely react with your copper to form copper (II) nitrate 5) Using your answer from question 4 (2x10^-3 L), calculate the minimum volume of 6M sodium ...
September 22, 2014 by Anonymous

technology
What is air transport?
August 10, 2009 by kk

physics
A crate weighs 820N and rests on a 34degree incline. You can keep it from sliding down the incline by pushing on it with a force of 240N applied parallel to the incline. 1)Calculate the coefficient of static friction between the crate and the incline. 2)What is the greatest ...
September 26, 2010 by Anonymous

math
A tank is 1/4 filled of water.when 90 liters of water are pumped into it the tank becomes 3/4 full.how much water in liters does the tank hold?
December 18, 2014 by gani

Chemistry
How many cubic centimeters of olive oil have the same mass as 1.60 L of gasoline? Density of gasoline: .66 g/ml Density of olive oil: .92 g/ml
September 3, 2011 by Anonymous

help me unscramble this word
ok can you help me unscramble this word "ANLDEGN".When it is unscrambled it its either the name of an ocean, country, state, city, or animal. Try these: http://www.ssynth.co.uk/~gay/anagram.html http://www.unscramble.net =) Thank you for using the Jiskha Homework Help Forum. ...
January 25, 2007 by rachel

Soc. Studies
The Industrial Revolution led to changes as the U.S. became more economically independent. Which of these changes occurred during this time? A. Cities began to grow, because individuals moved from farms looking for education. B.Low taxes allowed people to invest in small ...
February 7, 2013 by Cassie

physics
An oil tanker's engine have broken down and the wind has accelerated the tanker to a speed of 1.5m/s straight toward a reef. When the tanker is 500m from the reef, the wind dies down just as the engineer gets the engines going again. The rudder is stuck, so the only choice is ...
November 16, 2006 by Chris

Physics
A Ladder of length L and mass m leans against wall at angle theta from the vertical. The wall is smooth so that only horizontal force N is exerted on the top of the ladder. A fireman of mass M climbs a distance d upward as measured along the ladder. (a): Assuming the ladder ...
December 6, 2012 by Mike

calculus
please help i am lost at what is dy/dx and what is dy/dt. A trough is 10ft long and its ends have the shape of isosceles triangles that are 3 ft across at the top and have a height of 1ft. If the trough is being filled with water at a rate of 12ft^3/min, how fast is the water ...
February 25, 2011 by nic

Chemistry
Products used to remove clogs in drains contain strong bases, such as sodium hydroxide (NaOH). If drain cleaner containing 10.0g NaOH's is added to a clogged drain pipe filled with 2.5L water how many moles of NaOH were added? It'd mean a lot if someone could explain this to ...
April 7, 2013 by Allyson

Chemistry
An aqueous solution of ammonium nitrate NH4NO2 decomposeds when heated to give off nitrogen. This reaction may be used to prepare pure nitrogen. How many grams of ammonium nitrite must have reacted if 3.75dm^3 of nitrogen gas was collected over water at 26 degrees C and 97.8 ...
October 23, 2007 by Lauren

Physics
The "karat" is a dimensionless unit that is used to indicate the proportion of gold in a gold-containing alloy. An alloy that is one karat gold contains a weight of pure gold that is one part in twenty-four. What is the volume of gold in a 20.0 karat gold necklace whose weight...
April 5, 2007 by Mary

chemistry
Volume of Na2S2O3(aq) required? final burette reading trial1= 45.00 trial2= 44.27 trial3= 45.28 initial burette reading trial1= 0.52 trial2= 1.22 trial3= 2.33 volume of Na2S2O3 used in each trial? average of the two volumes agreeing within 0.10mL? can anyone help me with this ...
November 16, 2011 by Yul

math
my course material is unavailable at the moment and I am to figure out this question. I can't remember the formula could someone help me out? A spherical storage tank has a diameter of 48 ft and is full of water. How many delivery trucks with cylindrical tanks measuring 8 ft ...
September 24, 2009 by sam

math
The school parking lot had room for thirty cars. If all the spaces except six were filled, what fraction of the parking lot was in use? If Mrs. Johnson parks in one of the empty spaces, how does the fraction change? Please answer and explain.
April 3, 2013 by Anonymous

Chemistry
A sample of zinc with a mass of 14g was heated to 98 degree celsius in boiling water and then dropped into a beaker containing 4.5x10^4ng of water at 25 degree celsius. when the water and metal came to thermal equilibrium, the temperature is 29 degree celsius. what is the ...
January 23, 2011 by Ciara

Physics
A spring-loaded toy gun is used to shoot a ball of mass m=1.5 kg straight up in the air. The spring has spring constant k=667 N/m. If the spring is compressed a distance of 25.0 centimeters from its equilibrium position and then released, the ball reaches a maximum height (...
October 17, 2010 by Nikohl

Physics
A spring-loaded toy gun is used to shoot a ball of mass m=1.5 kg straight up in the air. The spring has spring constant k=667 N/m. If the spring is compressed a distance of 25.0 centimeters from its equilibrium position and then released, the ball reaches a maximum height (...
October 17, 2010 by Eden

Chemistry
A 125-g piece of metal is heated to 288 degrees celsius and dropped into 85.0 g of water at 26 degrees celsius. If the final temperature of water and metal is 58 degrees celsius, what is the specific heat of the metal?
April 16, 2012 by Alicia

math
A drum is 2/3 filled with oil.15 litres of oil is removed from the drum. The drum is now 3/5 full, find the capacity of the drum in litres.
February 13, 2013 by sherika

Math
Tom has a bag filled with 10 green balls, 5 red balls and 5 blue balls, what part on toms bag has green balls
April 23, 2013 by Gio

mummification
what was the substance used to stuff nostrils? The ancient Egyptians stuffed the nostrils with resin or wax. http://209.85.165.104/search?q=cache:3ghP1ChFOJYJ:www.touregypt.net/featurestories/mummification.htm+mummification+nostrils+resin&hl=en&gl=us&ct=clnk&cd=1&ie=UTF-8
January 23, 2007 by ruby

pH- part 2
how much .10M Base (in mL) is needed to neutralize 8.00mL of .10M Acid? base- NaOH, acid- HCl, base volume (mL)- ? base- NaOH, acid- HC2H3O2, base volume (mL)- ? VaNa=VbNb Vb= 8ml*.10N/.10N= 8m.
April 14, 2007 by Christine

physics
A satellite moves in a circular orbit around the Earth at a speed of 5.8 km/s. Determine the satellite’s altitude above the surface of the Earth. Assume the Earth is a homogeneous sphere of radius 6370 km and mass 5.98 × 1024 kg. The value of the universal gravitational ...
December 11, 2011 by janee

english
How do I diagram this sentence? And than all of a sudden he could. I think you mean "then" rather than "than" -- right? Here are two sites that will help you with diagramming: http://members.cox.net/teachro/ http://grammar.ccc.commnet.edu/grammar/diagrams/diagrams.htm Let me ...
August 9, 2007 by Brandi

Chemistry
A 50.0 mL graduated cylinder has a mass of 67.6 g. When it is filled with an unknown liquid to the 38.8 mL mark, the cylinder and liquid combined have a mass of 119.4 g. Calculate the density of the liquid in g/cm3. (1 mL = 1 cm3.)
September 12, 2012 by H

intermediate Algebra
A sink can be filled by a pipe in 2 minutes but it takes 4 minutes to drain a full sink. if both the pipe and the drain are open, how long will it take to fill the sink?
July 17, 2014 by Casandra

English
Look at the picture below. On the TV screen we can see a cartoon. What can we watch on TV? We can watch talk shows, soap operas, news, movies, etc. Lesson Objective TV is an important part of our lives. Let's find out good points and bad points about TV. Communication Function...
May 26, 2008 by John

physics
Two identical small spherical conductors (point charges), separated by 0.6 m, carry a total charge of 200 mu or micro CC. They repel one another with a force of 120 N. (For the universal constant k use the value 8.99 times 109 N m2/C2.) I think i am suppose to use E=kQ/r^2 . ...
September 1, 2014 by jasmine

physcis
A beam resting on two pivots has a length of L = 9.00 m and mass M =81.0 kg. The pivot under the left end exerts a normal force n1 on the beam, and the second pivot placed a distance 4.00 m from the left end exerts a normal force n2. A woman of mass m= 43.0 kg steps onto the ...
November 11, 2012 by Anonymous

chemistry
calculate the morality of THE H2SO4 solution for each of the three runs. do the three values agree closely together with each other. Part A. Titration 1 volume of unknown acid =20ml initial buret reading of NaOH =0.5 ml final buret reading of NaOH=10.0ml Titartion 2 volume of ...
October 17, 2012 by ALECIA

Chemistry
First two hw of 50 that I am trying to get a handle on. Any help would be appreciated. 3.What gaseous substance is driven off of succrose when it is heated? is the answer CO2? 7.What gaseous substance is driven off of succrose when it is reacted with acid? 17. What is the back...
August 8, 2010 by Bobby

Psychology
Which of these brain abnormalities is associated with Schizophrenia? Enlarged, fluid filled areas of the brain correlated with shrunken cerebral tissue Damage to the medulla Abnormally high activity in the frontal lobe Increase in brain waves that reflect synchronized neural ...
November 5, 2012 by Vivien

Calculus
The celcius scale is devised so that 0 degrees celcius is the freezing point of water ( at 1 atmosphere of pressure) and 100 degrees celcius is the boiling point of water ( at 1 atmosphere of pressure) . If you are more familiar with the Fahrenheit scale, then you know that ...
September 11, 2010 by Jack

Algebra
So I'm working on this diamond thing and it looks like this right now -8 (Blank) (Blank) 7 And I usually I multiply to get the top number and add to get the bottom one, but since the top and bottom are filled how do I get the left and right blank ones?
September 9, 2012 by Sarah Marie

Math
Daniel Filled the gas tank in his car with 14.6 gallons of gas. He then drove 284.7 miles before needing to fill up his tank with gas again. How many miles did the car get to a gallon of gasoline? (I'm just wondering how To set up this problem)
September 20, 2012 by Ellisyn Noelle

math
bob decided use a poster to make a collage for his social studies project he filled 3/8 of his collage with pictures representing her culture and 1/3 of the collage with pictures representing her interests how much room is left on the whole poster board
January 30, 2013 by demarcus

Finance
For each of the following situations, indicate whether FIFO, LIFO, or weighted average applies. a. In a period of rising prices, net income would be highest. b. In a period of rising prices, cost of goods sold would be highest. c. In a period or rising prices, ending inventory...
January 21, 2011 by Monty Douglas

Physics 12
"Two small spheres are located 0.50m apart. Both have the same charge on them. If the repulsive force is 5.0N, what charge is on the spheres, in microcoulombs?" I can begin to use my electrical force formula, but then I have two unknown charges. The anwser is 12 uC, but I am ...
December 9, 2008 by solexgirl12

Physics
A dockworker applies a constant horizontal force of 79.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 13.0 m in a time 4.50 s. What is the mass of the block of ice?If the worker stops ...
January 31, 2011 by Jake

Physics
A dockworker applies a constant horizontal force of 79.0 N to a block of ice on a smooth horizontal floor. The frictional force is negligible. The block starts from rest and moves a distance 13.0 m in a time 4.50 s. What is the mass of the block of ice?If the worker stops ...
January 31, 2011 by Jake

physics
two egatively charged particles repel one other with an electrostatic force of 5 newtons. determine how the sign and manitude of this force changes when; a. the distance between them is doubled, b. the distance is cut in half., c. one particle's charge is doubled., d both ...
March 30, 2012 by savid

Physics
A 1250 kg boat is traveling at 90 km/h when its engine is shut off. The magnitude of the frictional force fk between boat and water is proportional to the speed v of the boat. Thus, fk = 80v, where v is in meters per second and fk (the magnitude of the frictional force) is in ...
February 19, 2013 by Rachel

Physics
A 1250 kg boat is traveling at 90 km/h when its engine is shut off. The magnitude of the frictional force fk between boat and water is proportional to the speed v of the boat. Thus, fk = 80v, where v is in meters per second and fk (the magnitude of the frictional force) is in ...
February 19, 2013 by Rachel

Physics
A 1250 kg boat is traveling at 90 km/h when its engine is shut off. The magnitude of the frictional force fk between boat and water is proportional to the speed v of the boat. Thus, fk = 80v, where v is in meters per second and fk (the magnitude of the frictional force) is in ...
February 20, 2013 by Rachel

Physical Sci
The Dyson sphere is an hypothetical spherical structure centered around a star. Inspired by a science fiction story, physicist Freeman Dyson described such a structure for the first time in a scientific paper in 1959. His basic idea consisted of an artificial spherical ...
October 2, 2009 by Rocket90

Education
Hello, I need help with this question I need to come up with 3 teaching practices that foster children's academic achievement and I have no clue of what the teacher is looking for. Thanks I'm not sure what you mean by "teaching practices," but possibly this will help, even ...
November 10, 2006 by clark

Chemistry
How many kilojoules of heat are absorbed when 1.00L of water is heated from 18 degrees C to 85 degrees C? Did I do this right? 1000g H2O x 4.18 x 67 = 280060 kilojoules (my book says the specific heat for water in J/g x degrees C = 4.18, and for cal/g x degrees C = 1.00) Would...
May 19, 2010 by Sarah

Chem
Carbonyl fluoride, COF2, is an important intermediate for organic fluorine compounds. It can be prepared by the following reaction: CO2(g) + CF4(g) <==> 2COF2(g) At 1000*C, K for this reaction is .50. What are the partial pressures of all the gases at equilibrium when ...
April 15, 2007 by JP

Physics
Consider two blocks that are resting one on top of the other. The lower block has mass m2 = 3.5 kg and is resting on a frictionless table. The upper block has mass m1 = 2.7 kg. Suppose the coefficient of static friction between the two blocks is given by μs = 0.5. Part a...
October 10, 2013 by Anonymous

Physics
1. What is (a)the magnitude of the electrostatic force on a 10 microCoulomb charge located at the origin due to a 3 microCoulomb charge located at 1,-2? (b) What is the force on the 3 microCoulomb charge? Write your answer in component notation.
October 4, 2010 by Heather

Physics
1. What is (a)the magnitude of the electrostatic force on a 10 microCoulomb charge located at the origin due to a 3 microCoulomb charge located at 1,-2? (b) What is the force on the 3 microCoulomb charge? Write your answer in component notation.
October 4, 2010 by Heather

Physics
1. What is (a)the magnitude of the electrostatic force on a 10 microCoulomb charge located at the origin due to a 3 microCoulomb charge located at 1,-2? (b) What is the force on the 3 microCoulomb charge? Write your answer in component notation.
October 4, 2010 by Heather

Physics
A cable passes over a pulley. Because of friction, the tension in the cable is not eh same on opposite side of the pulley. The force in one side is 110 N, and the force on the other side is 100 N. Assume that the pulley is a uniform disk of mass 2.1kg and radius 0.21. ...
October 15, 2010 by Rod

Physics
Imagine that a small bug is trapped between two blocks ( 10kg and 5kg) In each case a person applies a force of 150 N to the right, but the order of the blocks is reversed. In which case will the bug have a better chance of surviving? Calculate the force acting on the bug in ...
December 8, 2010 by Jackie

physics
A person is trying to judge whether a picture (mass = 2.27 kg) is properly positioned by temporarily pressing it against a wall. The pressing force is perpendicular to the wall. The coefficient of static friction between the picture and the wall is 0.790. What is the minimum ...
February 18, 2014 by Anonymous

physics 1
A person is trying to judge whether a picture (mass = 2.27 kg) is properly positioned by temporarily pressing it against a wall. The pressing force is perpendicular to the wall. The coefficient of static friction between the picture and the wall is 0.790. What is the minimum ...
February 18, 2014 by Anonymous

physic 1
A person is trying to judge whether a picture (mass = 2.27 kg) is properly positioned by temporarily pressing it against a wall. The pressing force is perpendicular to the wall. The coefficient of static friction between the picture and the wall is 0.790. What is the minimum ...
February 18, 2014 by Anonymous

Physics
An exceptional standing jump would raise a person 0.90 m off the ground. To do this, what force must a person of mass 66 kg exert against the ground? Assume the person crouches a distance of 0.20 m prior to jumping, and thus the upward force has this distance to act before he ...
March 8, 2015 by Jrom

physics
In the figure below, a constant horizontal force Fapp of magnitude 18 N is applied to a wheel of mass 12 kg and radius 0.50 m. The wheel rolls smoothly on the horizontal surface, and the acceleration of its center of mass has magnitude 0.50 m/s2. What is the friciotnal force ...
April 7, 2010 by Jordan

PHYSICS
3 FORCES ACT ON MOVING OBJECT.FIRST FORCE HAS MAGNITUDE OF 80.0N AND DIRECTED DUE NORTH.ANOTHER HAS MAGNITUDE 60.0N AND DIRECTED DUE WEST.WHAT IS THE MAGNITUDE AND DIRECTION OF THIRD FORCE,SUCH THAT THE OBJECT MOVE IN CONSTANT VELOCITY?
June 25, 2012 by Anonymous

physics
if the weight of the block,W,is 2.5 kilogram,the coefficient of static friction,0.25,and the coefficient of kinetic friction,0.15,determine: (a) the force necessary to hold the block sliding down (b) the force necessary to pull the block up the plane with uniform speed
March 6, 2013 by helpppp meeeeeeee PHYSICS.........................

math133
) Solve algebraically and check your potential solutions: sqrtx+2+0 Answer: Show your work here: 3) The volume of a cube is given by V = s3, where s is the length of a side. Find the length of a side of a cube if the volume is 800 cm3. Round the answer to three decimal places...
May 30, 2010 by michelle

Calculus
A force of 70 N acts at an angle of 40 degrees to the horizontal and a force of 125 N acts at an angle of 65 degrees to the horizontal. Calculate the magnitude and direction of the resultant and the equilibrant.
May 25, 2010 by Anonymous

physics
A force of 100 Newtons acts upwards on a mass of 50 kg, another force of 60 newtons acts on the same mass downwards. calculate the accleration in which direction will be the accleration
January 16, 2011 by Haley

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