Monday
February 8, 2016

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: 53,433

PARAPHRASING CONFUSION PLEASE HELP???
I need help with this and have no clue as to what I should do. I have trouble with paraphrasing. Review the following passage and paraphrase the long passage in the following box. Use the reference to create an appropriate APA-formatted, in-text citation. Additionally, include...
November 27, 2011 by KELLY

Angular Velocity Question
A disk with a mass of 18 kg, a diameter of 50 cm, and a thickness of 8 cm is mounted on a rough horizontal axle as shown on the left in the figure. (There is a friction force between the axle and the disk.) The disk is initially at rest. A constant force, F = 70 N,is applied ...
October 25, 2010 by Oscar

HELP ME HEALTH 3 QUESTIONS
1)What is the importance of wearing sunglasses all year long? A. they block the amount of light that gets inside your pupils. B. They block the harmful UV rays that come from the sun. C. They prevent your iris from getting bigger from the sunlight. D. They prevent your retina ...
January 8, 2016 by #LOVE PINK

Physics Grade 11
I need Help answering this question what equations do i use from Newton's Law and how to solve it. I Have a test on Wednesday and im lost please help.!!! A piano is to be slid across the floor.IT had a mass of 450 kg. A) Calculate the normal force supporting the piano. B)If ...
November 8, 2010 by Hena

chem
a 45.8mL sample of a 5.8 M KNO3 solution is diluted to 1.00L. What volume of the diluted solution contains 15.0g KNO3? how do you do this? moles of solution: 5.8*.0458 moles Grams of solute= moles*molmassKNO3 Volume of 15g= 1000ml*15/gramssoluteabove
April 5, 2007 by kyle

Macroeconomics
What does crowding-out effect in a closed economy mean in simple terms? So...if there is 0 crowding-out effect, does it means that the investment/savings stays the same? Actually... I don't see how savings is directly affected by this effect... By the way, does this effect ...
September 27, 2009 by Anonymous

Physics -- sound
An organ pipe that is closed at one end has a fundamental frequency of 146 Hz. There is a leak in the church roof, and some water gets into the bottom of the pipe, as shown in the Figure. The organist then finds that this organ pipe has a frequency of 273 Hz. What is the depth...
November 19, 2011 by Please Help!!

Chemistry
Given that the vapor pressure of water is 17.54 torr at 20 C, calculate the vapor-pressure lowering of aqueous solutions that are 2.40 m in (a) sucrose, C12H22O11, and (b) aluminum chloride. Assume 100% dissociation for electrolytes. Sucrose Delta P = __ torr Aluminum Chloride...
February 19, 2012 by David

Finance/math
Reimbursement per screen 66.05 Equip cost/mo 1450.00 technologist cost per Mammography $15.60 tech aid/per $3.10 Variable cost per mamo $15.00 Equip. maintanance/mo. per machine $916.66 1) what is the monthly patient volume needed per month to cover fixed and variable costs? 2...
November 3, 2015 by Lori

Chemistry
Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 2.7 (femtometers) and the radius of the atom is approximately 70 (picometers). The volume of the nucleus is 8.210^−8 pm^3 And the volume of the atom is 1.410^6 pm^3 I found the ...
August 31, 2011 by Brittany

Math
The radiator in a car is filled with a solution of 60% antifreeze and 40% water. The manufacturer of the the antifreeze suggests that, for summer diving, optimal cooling of the engine is obtained with only 50% antifreeze. If the capacity of the radiator is 3.6 liters, how much...
November 24, 2015 by Shane

Chemistry
Enormous numbers of microwave photons are needed to warm macroscopic samples of matter. A portion of soup containing 225 g water is heated in a microwave oven from 23C to 91C, with radiation of wavelength 1.55 10-2 m. How many photons are absorbed by the water in the soup?
September 15, 2010 by Jon

Physics
An iron ball weighing 200 gm and specific heat of 0.11 is removed from a furnace and dropped into 550 gm of water at 5 degrees Celsius and the water is heated to 5 degrees Celsius. What must have been the temperature of the furnace?
December 5, 2012 by Tsuna

Chemistry
A metal bar having a mass of 212 g is heated to 125.0C and then dropped into 375 g of water at 24C. After a while the temperature of the water and the metal is 34.2C. If the specific heat of the metal is 0.831 J/gC, how much heat did the metal lose?
September 13, 2014 by El

Chemistry PLEASE HELP!!!
'A buffer is prepared by mixing a 100.omL of a 0.100 M NH3 solution with a 0.200M solution of NH4CL solution and making the total volume up to 1.000L of water. What is the volume of NH4Cl solution required to achieve a buffer at ph=9.5? Ka of NH4=5.6x10^-10. The textbook says ...
December 11, 2012 by jemima

maths
A chemical engineer designed a 625 ft long tailings channel to have a rhombus cross-section that is 9.5 ft deep, with walls sloping at an acute angle of 44a. A contractor placed a bid to excavate the canal at $195/cubic yard plus 20% profit. What was the bid?
October 10, 2012 by david

geometry
a cube is placed inside a right circular cylinder. How may cubic feet of water will file the cylinder that has the cube in it? The sides of the cube are 24. The radius of the cylinder in 12 square root of 2 thanks you
February 23, 2011 by jenny

physics
a bimetallic compound strip of brass and iron is 10cm long at 20C. When heated over a Bunsen burner flame the temperature of the brass rises to 800C and the iron to 750C. Calculate the difference in lengths of the iron and brass. (Ignore the bending effect)...please help
April 21, 2009 by cynthia

math
What do the lines making a circle around the low-pressure area indicate? 1.The values cannot be added because one is measuring area and the other is measuring volume. 2.The values can be added without making a conversion of units because they both measure area. * 3.The values ...
January 15, 2015 by king

chemistry
The fictitious compound, arrhenium fluoride (AhF), reacts with itself to form a dimer with the formula Ah2F2. The value of the rate constant is 6.091*10^-3M^-1.s^-1. What is the initial rate of reaction in a reactor filled with AhF to a concentration of 6.0M? Express you ...
December 7, 2012 by cutie.....

Aths
Suppose you are an astronaut spacewalking outside your spacecraft to repair a broken part. In fixing the part, you have drifted several meters from your spacecraft. You are now at rest and are still holding a bag filled with tools. How could you return to your ship?
May 11, 2014 by Ali

chemistry
a 225.0 gram sample of aluminum is heated and the temperature increased from 50.0 celsius to 65.0 celsius for temperature change of 15.0 celsius. how many calories of heat was absorbed to produce this temperature change?
September 24, 2012 by sherry

geometry
if a polygon has a volume of 19 cm and is dilated by a factor 3\2 , what will be the volume of the dilated polygon
August 4, 2014 by Mariah

Physics
You are installing a new spark plug in your car, and the manual specifies that it be tightened to a torque that has a magnitude of 45 Nm. Using the data in the drawing, determine the magnitude F of the force that you must exert on the wrench. Lenght of the wrench is .28 m and...
March 24, 2008 by Zach

physics urgent!
A vaulter holds a 34.1 N pole in equilibrium by exerting an upward force U with her leading hand and a downward force D with her trailing hand. Point C is the center of gravity of the pole. Given d1 = 1.100 m, d2 = 1.65 m, and d3 = 2.75 m, what are the magnitudes of U and D? i...
November 24, 2008 by tony

physics
some university students loaded their things into a toboggan. the toboggan has a mass of 8 kg and they are pulling it with a force that is 40 degrees above horizontal. if the coefficient of friction between the toboggan and a dry patch of sidewalk is 0.7,what force is required...
October 2, 2011 by maria

anatomy
In the body, lever systems involve the interaction of __1__, which provide the force, and __2__, which provide the lever arms. The force is exerted where __3__. The site at which movement occurs in each case is the intervening __4__, which acts as a fulcrum. 1. muscles? 2. ...
November 22, 2011 by Katie

physics
Two pellets, each with a charge of 0.80 microcoulomb (8.010−7 C), are located 4.0 cm (4.010−2 m) apart. Find the electric force between them, which I solved for 3.6 N. I am stuck on the next part: What would be the mass of an object that would experience this ...
April 17, 2012 by Christy

Physics
F1 and F2 are two horizontal forces of 70 N each, acting on a wagon. They are at 45 to the x-axis and at right angles to each other. A third force, F3, also 70 N, acts along the positive x-axis. What if, instead, F2 acted in the opposite direction from what is shown? Find the...
September 23, 2012 by arcos15

Physics
A cylindrically shaped piece of collagen is being stretched by a force that increases from 0 to 3.0 x 10^-2 N. The length and radius of the collagen are 2.5 and 0.091 cm. Young's Modulus is 3.1 x 10^6 N/m^2. a.) If the stretching obeys Hooke's Law, what is the spring constant...
February 23, 2013 by Lori

Science
A tug is capable of pulling a ship with a force of 100 KN. If two such tugs are pulling on one ship, they can produce any force ranging from a minimum of 0 KN to maximum of 200 KN. Give a detailed explanation of how this is possible. Use diagrams to support your result.
March 4, 2014 by Sello

physics
A person is pulled to the right on a sled (total mass of 60.1 kg) across the surface of a frozen pond with a force of 62.9 Newtons so that they move with a constant velocity. What is the force of friction acting on the sled? Choose your coordinate system so that upward, and to...
October 27, 2014 by Anonymous

Chemistry
After being heated, an enzyme loses its ability to catalyze a reaction. What change occurred to the enzyme? A. A physical change, because cooling will restore the enzyme's function C. A physical change, because intermolecular forces were overcome
March 19, 2015 by Cortney

french
I'm not sure if I understood these correctly can someone help? Et il a mis ses poings devant sa figue et il a commence a danser tout autour d'Eudes commes les boxurs a la tele chez Clotaire, d'ailleurs nous on n'en a pas encore et moi je voudrais bien que papa achete une. He ...
March 31, 2009 by kayla

chem 20
100. G of a metal required 848 calories to be heated from 25 degrees celsius to 100 degrees celsius calculate the specific heat of the metal
September 10, 2013 by Anonymous

chemistry
Under laboratory conditions of 25.0 degrees celcius and 99.5 kPa, what is the maximum number of cubic decimeters of ammonia that could be produced from 1.50 dm3 of nitrogen according to the following equation: N2(g) + 3H2 (g) --> 2NH3(g) I am not sure about this. a) 3.22 ...
April 16, 2010 by Susie

Physics
A rod made from a particular alloy is heated from 23.5C to the boiling point of water. Its length increases by 8.21 10-4 m. The rod is then cooled from 23.5C to the freezing point of water. By how much does the rod shrink? I will be happy to critique your work. use a ...
April 13, 2007 by Mary

Chemistry
5.00g of an unknown solid was heated to 99.7 degrees C and placed in a calorimeter with 1.25L H20. The initial temp of the water was 25.0 degrees C. During the experiment, the temperature of the water rose to 63.5 degrees C. what is the specific heat of the sample? Do you ...
November 7, 2011 by Samantha

physics
A pair of eyeglass frames are made of an epoxy plastic (coefficient of linear expansion = 1.30 10-4C−1). At room temperature (20.0C), the frames have circular lens holes 2.27 cm in radius. To what temperature must the frames be heated if lenses 2.28 cm in radius are to...
April 6, 2012 by kevin

physics
A pair of eyeglass frames are made of an epoxy plastic (coefficient of linear expansion = 1.30 10-4C−1). At room temperature (20.0C), the frames have circular lens holes 2.27 cm in radius. To what temperature must the frames be heated if lenses 2.28 cm in radius are to...
April 11, 2012 by anthony

physics
A pair of eyeglass frames are made of an epoxy plastic (coefficient of linear expansion = 1.30 10-4C−1). At room temperature (20.0C), the frames have circular lens holes 2.27 cm in radius. To what temperature must the frames be heated if lenses 2.28 cm in radius are to...
April 11, 2012 by greg

Early Child Ed.
I have a couple of questions that I need help with. 1. An example of a responsive enviroment for infants and toddlers would be: A. keeping children in their cribs. B. picking up children when they cry. C. keeping children with other children at all times. D. keeping toys in a ...
July 9, 2007 by Tamera

Chem
K so this time it is basic concept and I am suppose to guess what happens, so I've written the cause but I have also written my answer to the reaction and effect. so for: A + B <=> C stress: A is increased reaction: forward effect:[A]increased [B] inc [C]inc Stress: B is...
May 16, 2007 by Jason

English
I urgently need you to check this part for me. Thank you very much for your cooperation. 1) I go on the internet every day to conduct research on various school subjects. I normally go on google as a search engine to find answers to my homework. 2) I usually spend two hours on...
January 24, 2012 by Henry2

physics
A 16000 kg sailboat experiences an eastward force of 12400 N due to tide pushing its hull while the wind pushes the sails with a force of 51900 N directed toward the northwest (45 westward of North or 45 northward ofWest). What is the magnitude of the resultant ac- ...
October 17, 2012 by allie

Physics.
Bob hits a hockey puck with his stick. What forces are acting on the puck DURING THE ACTUAL HIT? a = weight b = friction c = tension d = forward force e = normal force Write down every letter that applies (in order) and without using any commas. my work: aedb
October 23, 2014 by Rose Nicol

Chemistry
Calculate the pH at the equivalence point when 50 mL of 0.098 M propionic acid is titrated with 0.340 M NaOH. I tried solving for the volume of NaOH and them using the total volume and then plugging it in to [H+][A-]/[HA] and used the Ka value for propionic acid but it was not...
April 15, 2013 by Maddie

Analytical CHM Lab
I am filling out my neutralization titration data sheet and i did not understand how to find buret correction (ml) and corrected volume(ml) and Molarity of NaOH without buret correction and as well as with buret correction. in the lab we have used 50 ml of buret for KHP mass(g...
September 19, 2014 by Jessy

Chemistry 101
Joe Smith, the chemical engineer from Acme Chemical Company, wanted to determine the final volume in a large glass cylinder is he dropped a 12.52 pound ingot of lead whose density was 112.3 g/cm^3 into the cylinder which already contained 2500. mL of water. What is the final ...
January 18, 2016 by Lilly

Chemistry
In a similar experiment, a student needs a 0.50 M KOH solution (MM = 56.11 g/mol). The student only has a 50.00 mL volumetric flask. How much KOH should be added before the flask is filled with water?
February 2, 2014 by Lily

phy
1 An object is thrown upward from the edge of a tall building with a velocity of 10 m/s. Where will the object be 3 s after it is thrown? Take g=10ms−2 15 m above the top of the building 30 m below the top of the building 15 m below the top of the building 30 m above the...
January 28, 2013 by christ

physics
A 450 g block is at rest on a horizontal surface. The coefficient of static friction between the block and the surface is 0.670, and the coefficient of kinetic friction is 0.380. A force of magnitude P pushes the block forward and downward as shown in the figure below. Assume ...
October 19, 2011 by carlton

Physics
The atoms in a gas (gas constant R=8.31 J/mol-K) can be treated as classical particles if their de Broglie wavelength is much smaller than the average separation between the particles d. Consider monatomic Helium gas (mHec2 = 3727MeV), molar mass 4g/mol) at 1.0 atmosphere ...
December 7, 2009 by Bun

math, physics
A 10 m high, 5 diameter cylindrical water tank has an inlet at the top and a drain at the bottom. The flow rate out of the tank depends on the pressure at the bottom of the tank via the following: dm/dt = (10^-4)*(P_bot) where P_bot is the absolute pressure in Pascal at the ...
October 6, 2011 by Anonymous

English
Diagram these sentances: 1Maggie woke me up with her silly crying. 2Darby cried, too. 3I awoke quickly. 4What was the matter? 5The hungery dogs barked and ran into the kitchen. Here are two wonderful websites that will help you with diagramming: http://members.cox.net/teachro...
November 19, 2006 by WILLIAM

physics
98. On which of these hills does the ball roll down with increasing speed and decreasing acceleration along the path? (Use this example if you wish to explain to someone the difference between speed and acceleration.) 99. If you drop an object, its acceleration toward the ...
June 11, 2014 by Becca

Physics
"It takes a force of 109 N to lift a stone straight up. This force gives the stone an acceleration of 12 m/s^2. Calculate the mass of the stone." My physics teacher tried to explain this problem to us, but he explained it so confusingly that I still don't get it (if that made ...
October 29, 2007 by Emily

physics
The loaded car of a roller coaster has mass M = 320 kg. It goes over the hig a speed v of 21.4 m/s. The radius of curvature R of the hill is 62.3m (a) What is the force (N) that the track must exert on the car? (positive is (b) What must be the force (N) that the car exerts on...
August 6, 2011 by waqas

Physics 12th grade
A farm tractor is pulling 2 pieces of equipment east, with each piece of equipment 25 north and south of the x axis. If it takes 50,000 N of force on each chain to keep the equipment moving, then what is the total force of the tractor in the x direction?
September 26, 2011 by George

Physics HELP!
A block of mass 3 kg slides along a horizontal surface while a 20-N force is applied to it at an angle of 25. If needed, use g = 10 m/s2. For a coefficient of kinetic friction of 0.3 between the block and the surface, the frictional force acting on the block is most nearly 9 ...
May 25, 2012 by Ashley

physics
An object is moved left to right horizontally 2 meters while a force of 3 Newtons to the left acts. No other forces act on the object. Draw a diagram of showing the displacement and the force and calculate the work done on the object in Joules.
January 29, 2016 by callie

Physics
Hey guys - this problem is pretty tough for me...any help? Don't know what to do.... In seawater, a life preserver with a volume of 4.0010^−2 m^3 will support a 76.0 kg person (average density 980 kg/m^3), with 20.0 % of the person's volume above water when the life ...
January 29, 2010 by Randi

Chemistry
A chemical reaction occurring in a cylinder equipped with a movable piston produces 0.58 mol of a gaseous product. If the cylinder contained 0.11 mol of gas before the reaction and had an initial volume of 2.1 L, what was it's volume after the reaction. Am I doing this right ...
October 14, 2011 by Monique

Math
i have problems with understand what they are asking in a word problem it goes like this one jar holds 4mls more than twice. The two jars together hold the volume of the other jar. both jars together hold 712ml what is the volume the smallest jar hold.
February 21, 2013 by Tara

Math
i have problems with understand what they are asking in a word problem it goes like this one jar holds 4mls more than twice. The two jars together hold the volume of the other jar. both jars together hold 712ml what is the volume the smallest jar hold.
February 21, 2013 by Tara

Chemistry
A solid sample of a hydrate salt, NaNO3xH2O, was heated gently to drive off all the water of crystallization. Starting with a mass of 7.494g of NaNO3xH2O, a mass of 5.263g of the anhydrous salt, NaNO3 was obtained. Determine the value of x (which is expected to be an integer...
August 18, 2013 by Adalaide

Algebra
I have a few things I need some help with. Does anyone know how many cubic decimeters are in 1 liter? And would anyone be able to help me with this problem? The density of a substance is 2.7 g/cm. What is the density of the substance in kilograms per liter? Thank you so much...
November 5, 2008 by Patricia

maths
A storage tank is in the shape of a right circular cylinder that has a diameter of 20 inches and a height of 3yards. if oil costs $2 per cubic foot, what does it cost to fill the storage tank oil?
January 21, 2012 by Anonymous ii

math
a circular pool measures 10 ft across. 1 cubic yard of concrete is to be used to create a circular border of uniform width around the pool. if the border's depth is 2 inches, how wide would will it be?
June 30, 2015 by sav

physics
A 57.0 kg child takes a ride on a Ferris wheel that rotates four times each minute and has a diameter of 23.0 m. (a) What is the centripetal acceleration of the child? (b) What force (magnitude and direction) does the seat exert on the child at the lowest point of the ride? (c...
June 19, 2011 by Sarah

physics
A 316-kg boat is sailing 12.0 north of east at a speed of 1.60 m/s. 39.0 s later, it is sailing 36.0 north of east at a speed of 4.00 m/s. During this time, three forces act on the boat: a 31.4-N force directed 12.0 north of east (due to an auxiliary engine), a 20.7-N force...
September 14, 2012 by marissa

english
please help me unscramble this word hippayen Try these: http://www.ssynth.co.uk/~gay/anagram.html http://www.unscramble.net =)
December 21, 2006 by bb

social studies
unscramble these egrvwneoir Try these: http://www.ssynth.co.uk/~gay/anagram.html http://www.unscramble.net =) "vinegrower"
February 20, 2007 by carol

physics
A 110g hockey puck sent sliding over ice is stopped by a frictional force on it from the ice a) if its intial speed is 6.0m/s, what is the magnitude of the frictional force? b) what is the coefficient of friction between the puck and the ice? I am unsure how to solve the first...
November 19, 2006 by tina

physics
A force 1 of magnitude 5.40 units acts at the origin in a direction 45.0 above the positive x axis. A second force 2 of magnitude 5.00 units acts at the origin in the direction of the positive y axis. Graphically find the magnitude and direction of the resultant force 1 + 2.
September 12, 2012 by carlton

Science
The density of water is one gram per cubic cenitimeter. What is density of water in pounds per liter?
May 7, 2008 by Gabby

Math
The inside of a refrigerator is 6 feet tall, 3 feet wide, and 2 feet deep. How many cubic feet of space are inside the refrgerator
January 26, 2016 by Arnijah

physics
manet A has twice the magnetic field strength of magnet B (at equal distance ) and , at a certain distance,it pulls on magnet B with force of 50n. with how much force, then dose magnet B PULL ON MAGNET a?
February 5, 2008 by tina

Physics
A -3.5uC charge experiences a 13 ihat-N electric force in a certain electric field.What force would a proton experience in the same field? I got -7.28*10^-18 from (1.6*10^-19)(-45.5) I got -45.5 from multiplying 13 by -3.5 What am I doing wrong?
August 6, 2009 by Josh

physics
Newton assumed that a gravitational force acts directly between Earth and the Moon. How does Einstein's view of the attractive force between the two bodies differ from Newton's view?
January 16, 2010 by kendra

Physics
A charged particle A exerts a force of 2.39 N to the right on charged particle B when the particles are 13.3 mm apart. Particle B moves straight away from A to make the distance between them 16.1 mm. What vector force does particle B then exert on A?
February 6, 2010 by Jan

Physics
A force F=180 N pulls a crate at a 60 degree angle on a rough surface. The weight of the crate is 296 N and the friction force between the crate and the surface is 90 N. What state of motion might the crate be in?
October 23, 2010 by Lisa

physics
A car that weighs 15,000 N is initially moving at 60 km/hr when the brakes are applied. The car is brought to a stop in 30 m. Assuming the force applied by the brakes is constant, determine the magnitude of the braking force.
December 21, 2010 by miyako

Physics
A man using a 70 kg garden roller on a level surface exerts a force 20 kgf at 45 degrees to the ground . Find the vertical force of the roller on the ground if he ; a) pulls the roller. b) pushes the roller.
January 10, 2011 by Joseph

Physics (Force and Motion)
a 0.20 kg ball is released from a height of 10 m above the beach; the impression the ball makes in the sand is 5.0 cm deep while the ball stops uniformly. what is the force acting on the ball by the sand?
February 19, 2011 by Anonymous

Physics Vehicle application
If the car is traveling at 98 km/h, will a friction force be required? If so, in what direction? How much friction force will be required? Confused. May someone walk me through this problem step by step. Thank you
June 16, 2012 by Mike Joseph

Physics
A carefully designed experiment can measure the gravitational force between masses of 9 kg. Given that the density of iron is 7860 kg/m3, what is the gravitational force between two 9.00-kg iron spheres that are touching in N?
June 26, 2012 by Tim

Impact force
A 65.0 kg professional diver performs a dive from a platform 10 m above the water surface. Find the average impact force she experiences in her collision with the water if the collision lasts for 0.800 s.
October 21, 2012 by Anonymous

physics
A person exerts a force of 6.0 N at a point which is 90 cm from the hinged side of a door. If the torque is 5.2 N m then determine the angle between the force vector and the line that runs directly from the point to the hinged side.
December 11, 2012 by john

science
Using the equation: work = force x distance tell me how much work is done when a boy applies 5 Newtons of force over a distance of 2 meters. A)10 Watts B)10 Joules C)10 Amps D)10 Newtons
February 24, 2013 by faithwest98

Physics
If a Mack truck and Honda Civic have a headon collision, upon which vehicle is the impact force greater and which vehicle experiences the greater acceleration? I know they have same force.
March 1, 2013 by Sally

phys
A short 10-g string is used to pull a 50-g toy across a frictionless horizontal surface. If a 3.0 x 10^(2)-N force is applied horizontally to the free end, the force of the string on the toy, at the other end, is: A) 0.15 N B) 6.0 x 10^(3) N C) 2.5 x 10^(2) N D) 3.0 x 10^(...
March 8, 2014 by tony

physics
A hammer is being used to pull a nail out of a horizontal board. L = 32 cm and d = 5.2 cm. If a force of 158 N is exerted horizontally as shown, calculate the force (in N) exerted by the hammer claws on the nail.
May 8, 2014 by sydwell

physics
A crate is pulled up a rough incline. The pulling force is parallel to the incline. The crate is pulled a distance of 6 . 92 m. The acceleration of gravity is 9 . 8 m / s 2. What is the magnitude of the work is done by the gravitational force? Answer in units of J
January 14, 2015 by allan

physics
Which of the following correctly describe the gravitational attraction between Earth and the Moon? -The Earth and the Moon exert equal size gravitational forces on each other. -The gravitational force of the Moon on the Earth is towards the Moon. -Both the Earth and the Moon ...
October 4, 2012 by Emily

physics
a constant force can at on an object for diferrent lengths of time. as the length of time the force acts increases, the impulse imparted to the object increases decreases remians the same
January 5, 2011 by john

physics
The small piston has a diameter of 2cm and the large piston has a diameter of 6cm. How much more force can the larger piston exert compared with the force applied to the smaller piston?
January 28, 2011 by Anonymous

Science
In what way is erosion NOT like weathering? A)It is a force that changes the earth's surface B)It is a destructive force C)It changes rocks in some way D)It breaks down rocks I think D??
October 18, 2011 by Isaac

physics
A neighbor pushes a lawn mower on a lawn that is level with a force of 230 Newtons. If 45% of this force is directed downward, how much work is done by the neighbor in pushing the mower 8 meters?
December 2, 2011 by roshna

university physics
Two forces act on a 4.00-kg object in a manner that the object has an acceleration 3.00 m/s2 in a direction 20.0 north of east. The first force is 15.00 N in a direction 10.0 west of north. What is the second force?
October 15, 2012 by mike

  1. Pages:
  2. <<Prev
  3. 199
  4. 200
  5. 201
  6. 202
  7. 203
  8. 204
  9. 205
  10. 206
  11. 207
  12. 208
  13. 209
  14. 210
  15. 211
  16. 212
  17. 213
  18. Next>>