Tuesday
September 2, 2014

Search: A force of 5.0 is required to stretch a certain spring by 1.2 .How far must this spring be stretched for its potential energy to be 0.015 ?

Number of results: 44,349

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
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

Physics
The space shuttle has a weight 2.00 x 10^7 N. The shuttle is accelerated upward at a rate of 5.50 m/s^2. What is the mass of the shuttle? What is the thrust (force) of the combined engines? What is the magnitude of the net force applied to the space shuttle?
December 7, 2011 by Hannah

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

physics
Find the resultant, in magnitude and direction of a force of 40 N which makes an angle with the + X axis of 38o and a force of 20 N acting along the + X axis. Find the x and y components of the resultant and express them as i and j vectors.
November 7, 2012 by Anonymous

Physics
Two crewmen pull a boat through a lock, as shown in the figure. One crewman pulls with a force of F1 = 145 N at an angle of θ = 32° relative to the forward direction of the raft. The second crewman, on the opposite side of the lock, pulls at an angle of 45°. With what ...
July 3, 2012 by Anonymous

Calculus
A piece of elastic is attached to two nails on a flat board, with a button attached to the midpoint of the elastic. The nails are 5 cm apart. You stretch the elastic by pulling the button along the board in a direction that is perpendicular to the line between the nails. A. ...
January 15, 2012 by Mishaka

Math
For one pony, thecritical force was 1.16 times its body weight. It experienced a force of 0.75 times its body weight at a speed of 2 meters per second, and a force of 0.93 times its body weight at 3 meters per second. At what speed did the pony switch from a trot to a gallop? ...
January 26, 2012 by Aryan

college physics
i just need to know if i got the right answer. plz thankyou a 15000N car on a hydrolyic lift rests on a cylinder with a piston of radius 0.20M,. if a connecting cylinder with a piston of 0.04M radius is driven by compressed air, what force must be applied to the smaller piston...
November 13, 2007 by tasha

math
Five athletes are chosen to represent their sports at the school pep rally. Two girls and three boys are selected to walk into the gymnasium. If a girl must enter first and the other girl must be the last one to enter, how many different ways can the athletes enter the gym?
April 24, 2014 by anonymus

Social studies
Could you please check these other sets of terms. Here are the terms: scarcity cost benefit analysis marginal revenue needs incentives economy opportunity cost variable costs capitalism marginal cost food, clothing,shelter, and other things required for survival. Answer: needs...
March 23, 2009 by Sam

Physics
Two forces, F1 and F2 , act at a point. F1 has a magnitude of 8.80N and is directed at an angle of 64.0 degree above the negative x axis in the second quadrant. F2 has a magnitude of 7.00N and is directed at an angle of 52.8 degree below the negative x axis in the third ...
September 20, 2008 by Poole

URGENT! Physics
A boy shoves his stuffed toy zebra down a friction-less chute, starting at a height of 1.07 m above the bottom of the chute and with an initial speed of 1.87 m/s. The toy animal emerges horizontally from the bottom of the chute and continues sliding along a horizontal surface ...
November 5, 2012 by Jessica <3

physics
please help! physics doesn't click with me. thank you for your help! A 23 kg suitcase is being pulled with a constant speed by a handle that is at an angle of 25° above the horizontal. If the normal force exerted on the suitcase is 155 N, what is the force F applied to the ...
September 30, 2010 by jack

physics
a snowmobile has a mass of 2.5*10^2 kg. A constant force acts upon it for 60 seconds. The snowmobile's inital velocity is 6 m/s and its final velocity is 28 m/s. a) find its change in momentum of the ball. b) what is the magnitude of the force action upon it?
January 31, 2011 by collin

Physics
Three blocks rest on a frictionless, horizontal table, with m1 = 9 kg and m3 = 16 kg. A horizontal force F = 104 N is applied to block 1, and the acceleration of all three blocks is found to be 3.3 m/s2. 1) Find m2 2)What is the normal force between 2 and 3?
September 1, 2011 by Logan

Physics
Is the maximum torque that a given force can exert on an object occurs when the force is applied to the axis of rotation. I think it is true because torque is always specific when it comes to the axis of rotation. Am I correct?
December 16, 2011 by David

Physics
if a force of 163 newtons is applied to the end of the jack handle the end moves down 15 cm. If lifting part of the jac raises the car bumper 1.75 cm what force is the jack exerting on the bumper
February 17, 2012 by Emily

WSU PHY
A carefully designed experiment can measure the gravitational force between masses of 8 kg. Given that the density of iron is 7860 kg/m3, what is the gravitational force between two 8.00-kg iron spheres that are touching?
June 26, 2012 by WSU John Doe

physics
A student, crazed by the first physics Midterm, uses a pushing force of 80 N angled at 70° to push a 5.0 kg book across the frictionless ceiling of his room. a. What is the block's acceleration? b. What is the force of the ceiling on the book?
April 8, 2013 by Corey

Math
1170 students are going on trip. they are flying on 138 seat planes. all students must go and all must be seated. how many planes are needed to transport all of the students ?
September 26, 2011 by John

chem
Wich of the following is NOT true about the blank for the experiment, 'Analysis of a Complex Iron Salt'? A. The volume required to titrate the blank is subtracted from the volume used to titrate the analyte solution to give the "corrected volume". B. A blank is composed of the...
August 15, 2008 by Anonymous

Chemistry
Wich of the following is NOT true about the blank for the experiment, 'Analysis of a Complex Iron Salt'? A. A blank is composed of the solvent used to dissolve the analyte. For this experiment, the solvent is a combination of sulfuric acid, phosphoric acid, and water. B. The ...
April 26, 2009 by uci student

chemistry
Wich of the following is NOT true about the blank for the experiment, 'Analysis of a Complex Iron Salt'? A. A blank is titrated to correct for any reactive impurities in the solvent. For this experiment, the impurities would be reducing agents that would react with KMnO4 (...
April 17, 2010 by eng

physics
A thin uniform stick having a mass of 0.680 kg and a length of 1.50 m is at rest, hanging vertically from a strong, fixed hinge at the uppermost end of the stick. The stick is free to swing back and forth in an Up-Down-East-West plane. Suddenly, the midpoint of the stick is ...
November 30, 2012 by HALP

Help
The countries of Europe report that 46% of the labor force is female. The United Nations wonders if the percentage of females in the labor force is the same in the United States. Representatives from the United States Department of Labor plan to check a random sample from 10,...
October 29, 2007 by LT

math
need help in 1996, the civilian labor force of the united states included 127 million people, and 5% were unemployed. how many people in the cilvilian labor force were unemployed?
December 16, 2008 by laura

physics
If the 1 kg standard body has an acceleration of 2.00 m/s2 at 20.0° to the positive direction of an x axis, what are (a) the x component and (b) the y component of the net force acting on the body, and (c) what is the net force in unit-vector notation?
February 12, 2010 by Anonymous

physics
Show that a force acting along a given line can always be replaced by a force of the same magnitude acting along a parallel line, together with a couple.
March 26, 2010 by Edwin

physics
Show that a force acting along a given line can always be replaced by a force of the same magnitude acting along a parallel line, together with a couple.
March 26, 2010 by Edwin

physics
Show that a force acting along a given line can always be replaced by a force of the same magnitude acting along a parallel line, together with a couple.
March 28, 2010 by Edwin

physics
A crate of mass m = 230 kg is pushed at constant speed up the frictionless ramp (θ = 29.0°) by a horizontal force F. What is the magnitude of F? What is the magnitude of the force exerted by the ramp on the crate?
October 20, 2010 by jim

physics
The air exerts a forward force of 10 N on the propeller of a 0.20 kg model airplane. If the plane accelerates forward at 5.0 m/s2, what is the magnitude of the resistive force exerted by the air on the airplane in Newtons ?
October 7, 2011 by savy

physics
A shot putter projects the shot at an angle of 37 degrees above horizontal with a force of 980 Newtons (N). What are the magnitudes of the vertical and horizontal components of the 980 N force?
February 6, 2012 by amanda

Physics
A syringe has an area of 1.4 cm2 at its barrel and then narrows down to an area of 0.08 mm2 at the needle end. If a force of 5.5 N is applied to the syringe, what is the force produced at the tip of the needle?
July 25, 2012 by Sierra

Physical science
A man pushes a lawn mower on a level lawn with a force of 192 N. If 50% of this force is directed downward, how much work is done by the man pushing the mower 7.3 m?
September 9, 2012 by Liz

Physics
A trailer with a mass of 2.00x 10^3 kg is pulled by a truck with a mass of 3.00 x 10^3 kg. If the applied force is 8750 N and the frictional force exerted by the road is 2560 N, what is the acceleration of the truck and trailer?
December 1, 2013 by Anne

Physics
A trailer with a mass of 2.00x 10^3 kg is pulled by a truck with a mass of 3.00 x 10^3 kg. If the applied force is 8750 N and the frictional force exerted by the road is 2560 N, what is the acceleration of the truck and trailer?
December 1, 2013 by Anne

Stats
The countries of Europe report that 46% of the labor force is female. The United Nations wonders if the percentage of females in the labor force is the same in the United States. Representatives from the United States Department of Labor plan to check a random sample from 10,...
October 31, 2007 by LT

Science~!
A basketball momentarily changes shape as it bounces off the floor. This is due to balanced forces acting on the ball. (1 point) True*** False A ball slowing down as it rolls across a carpet is an example of (1 point) Balanced force Friction*** Inertia Zero net force If the ...
March 4, 2014 by Gabby

Physics
A bicyclist rides 2.78 km due east, while the resistive force from the air has a magnitude of 6.52 N and points due west. The rider then turns around and rides 2.78 km due west, back to her starting point. The resistive force from the air on the return trip has a magnitude of ...
February 26, 2013 by Randy

Physics
As a fish jumps vertically out of the water, assume that only two significant forces act on it: an upward force F exerted by the tail fin and the downward force due to gravity. A record Chinook salmon has a length of 1.50 m and a mass of 53.5 kg. If this fish is moving upward ...
May 3, 2013 by Abdullahi A.

Physics
A 50g mass (M1) will be attached to the trolley M2) and will cause it to accelerate a distance of between .5 to .6m. You also catch the trolley immediately after it has passed through the photogate. The time for the trip will be noted and recorded. The trolley is on a track. ...
February 23, 2007 by Tammy

Science
To lift a load to the roof, you apply 21 N of force to a pulley. The pulley applies 21 N of force to the load. What is the mechanical advantage of the pulley? A.0 B.1 C.40 D.21
May 21, 2014 by Shelin

Health
Can you please check these sentences? Thank you, Writeaacher! 1) You must be respectful of your classmates and of your teachers. You should stand up when teachers (or your teachers?) enter the classroom. 2) You mustn't drink or eat during lessons but you can do it during the ...
May 15, 2012 by Jane

Physics
One very long wire carries a current of 30A to the left along the x-axis.A second very long wire carries a current of 50A to the right along the line(y=0.280m,z=0) A)Where in the plane of the two wires is the total magnetic field equal to zero? B)A particle with a charge of -2...
November 11, 2009 by Sandhu

Physics
A 325-kg boat is sailing 15.0° north of east at a speed of 2.00 m/s. Thirty seconds later, it is sailing 35.0° north of east at a speed of 4.00 m/s. During this time, three forces act on the boat: a 31.0-N force directed 15.0° north of east (due to an auxiliary engine), a 23.0...
November 13, 2009 by Litany

Physics
A 325-kg boat is sailing 15.0° north of east at a speed of 2.00 m/s. Thirty seconds later, it is sailing 35.0° north of east at a speed of 4.00 m/s. During this time, three forces act on the boat: a 31.0-N force directed 15.0° north of east (due to an auxiliary engine), a 23.0...
November 13, 2009 by Litany

Physics
A 358-kg boat is sailing 15.9° north of east at a speed of 1.80 m/s. Thirty seconds later, it is sailing 36.6° north of east at a speed of 3.68 m/s. During this time, three forces act on the boat: a 29.7-N force directed 15.9° north of east (due to an auxiliary engine), a 23.9...
September 22, 2011 by Jasmin

physics
A 358-kg boat is sailing 15.9° north of east at a speed of 1.80 m/s. Thirty seconds later, it is sailing 36.6° north of east at a speed of 3.68 m/s. During this time, three forces act on the boat: a 29.7-N force directed 15.9° north of east (due to an auxiliary engine), a 23.9...
September 23, 2011 by Jasmin

Physics
A 343-kg boat is sailing 16.2° north of east at a speed of 1.98 m/s. Thirty seconds later, it is sailing 37.5° north of east at a speed of 3.76 m/s. During this time, three forces act on the boat: a 30.3-N force directed 16.2° north of east (due to an auxiliary engine), a 22.3...
February 12, 2012 by Natasha

PHYSICS
RESPONDING TO AN ALARM, A 102 KG FIREMAN GETS UP FROM DINNER AND SLIDES DOWN A POLE TO THE GROUND FLOOR OF THE BUILDING, 3.3 M BELOW. THE FIREMEN STARTS AT REST AND LANDS ON THE GROUND FLOOR WITH A SPEED OF 4.2 M/S. A.FIND THE FORCE EXERTED ON THE FIREMEN BY THE POLICE. B.IF ...
March 23, 2010 by Stacy

English grammer
I need to identify the subject, verb, and any complements (direct object, indirect object, subject complement, objective complement) and the prepositional phrases of the following sentances. I thought i had them more or less right but when i turned them in i got 59% and i dont...
July 5, 2011 by Eddie

Physics Thanks
Please help... Let g be the acceleration due to gravity at the surface of a planet of radius R. Which of the following is a dimensionally correct formula for the minimum kinetic energy K that a projectile of mass m must have at the planet's surface if the projectile is to ...
May 13, 2007 by Kelly

Math
Graph and identify the coordinates of a rectangle with a length of at least 5 units and a width of at least 2 units. Each vertex of the rectangle must be in a different quadrant. Two of the points must have rational coordinates that are not integers. I'm not sure what to do. ...
May 30, 2014 by Gaylee

physics
By accident, a large plate is dropped and breaks into three pieces. The pieces fly apart parallel to the floor, with v1 = 3.15 m/s and v2 = 1.50 m/s. As the plate falls, its momentum has only a vertical component, and no component parallel to the floor. After the collision, ...
March 13, 2012 by Natasha

Physics
By accident, a large plate is dropped and breaks into three pieces. The pieces fly apart parallel to the floor, with v1 = 2.75 m/s and v2 = 1.65 m/s. As the plate falls, its momentum has only a vertical component, and no component parallel to the floor. After the collision, ...
October 22, 2012 by Elizabeth

Physics
Assume that in interstellar space the distance between two electrons is about 0.87 cm. The electric force between them are repulsive. Calculate the electric force between these two electrons. The value of the Coulomb constant 9 × 109 N · m2/C2 and the elemental charge is 1.6...
March 3, 2013 by Terry

physics
a heavy truck is slowing down because the driver has applied the brakes. what canyou conclude about the direction of the resultant force acting on the trck? B. what is the resultant force acting on the truck when it has come to a halt?
October 10, 2010 by chelsea

physics
A car that weighs 15,000 N is initially moving at 60km/hr when the brakes are applied. The car is brought to a stop in 30m. Assuming the force applied by the brakes is constant, determine the magnitude of the braking force.
June 11, 2011 by Dale

physics
A force is applied to a 2.6 kg mass and produces 2.7 m/s^2 acceleration. What acceleration would be produced by the same force applied to 14.9 kg mass? Answer in units of m/s^2 Here is my work, but i wanted to make sure if it was right or not: 2.6(2.7)=7.02 7.02/14.9=.471 m/s^2
July 2, 2011 by alexa

Physics
A body at equilibrium is under the action of three forces. One force is 10N acting due east and one is 5N in the direction 60 degree north-east. What is the magnitude and direction of the third force?
May 25, 2013 by Adigun

Physics
A body at equilibrium is under the action of three forces. One force is 10N acting due east and one is 5N in the direction 60 degree north-east. What is the magnitude and direction of the third force?
May 25, 2013 by Adigun

college physics
An object acted on by three forces moves with constant velocity. One force acting on the object is in the positive x direction and has a magnitude of 6.4N ; a second force has a magnitude of 5.0N and points in the negative y direction.
September 29, 2013 by taylor

Physics
Acceleration due to gravity is independent of mass, but the force is not. Determine the final velocity of the following objects and the force generated by the same objects as they are dropped from the given heights. 10 kg 2.5 meters 7 kg 5.5 meters 0.5 kg 12 meters 0.7 kg 5 ...
April 5, 2014 by Anonymous

English
{At a restaursant} For hear or to go? Is this for here or to go? It's for here, please. It is to go, please. (Are the expressions above all grammatical? What is the meaning of 'is to' in 'It is to go, please.'? Does it mean 'must'? That is, "It (the food) must go, please." Am ...
December 16, 2010 by rfvv

psychology
In order to be useful, a test must be reliable. In other words, it must : performance. a. produce the same results from one time to the next b.predict other criteria of the trait being measured c, measure what it is designed to measure d. compare results againt etablished ...
April 30, 2013 by kaye

Statistics
A pharmaceutical company claims its new medication relieves painful symptoms caused by tension headaches within 15 minutes. To investigate this claim, a local health clinic conducts a study of 45 patients who suffer from chronic tension headaches. Each patient is given ...
March 26, 2013 by Bill

Physics
Which of the following statements are true? Select all that apply. Impulse has units of mass times velocity. During a collision, an object's linear momentum is equal to the magnitude of the impulse. The impulse of a collision is equal to the duration of the collision ...
October 30, 2012 by melinda47

english
Our two souls therefore, which are one, Though I must go, endure not yet A breach, but an expansion, Like gold to airy thinness beat. If they be two, they are two so [25] As stiff twin compasses are two ; Thy soul, the fix'd foot, makes no show To move, but doth, if th' other ...
May 8, 2011 by Alliana

Language arts
1. If your teacher raves about you to your parents, this means she thinks you are misbehaving. thinks you are a good student. thinks you might be sick. 2. Read the following excerpt from "Dandelion Wine," then answer question 2."The magic might die by the first of September, ...
June 1, 2014 by Mstv

Physics
A 0.21 kg ball on a string is whirled on a vertical circle at a constant speed. When the ball is at the three o'clock position, the tension is 18 N. -------------------------------------------------------------------------------- (a) How does the magnitude of the centripetal ...
April 11, 2008 by Johnson

physic
A turnbuckle is needed to apply an 8kN force on a cable. If the efficiency of the turnbuckle is 40% and the force applied is 159.155N with a lever of 20cm in length. a) Find the mechanical advantage. b) Find the velocity ratio. c) Find the mean pitch of thread.
April 2, 2009 by luc

Physics
A model rock is shot into the air. Once it starts to fall a parachute is deployed. Draw a free body diagram of the rocket with the parachute deployed ok well there is gravity does the parachute exert a force upward? onto what? what do i call this force?
August 28, 2009 by Physics

physics
In a tug-of-war between two athletes, each pulls on the rope with a force of 270 N. What is the tension in the rope? ______ N If the rope does not move, what horizontal force does each athlete exert against the ground? ______ N is the first on 250 and is the second one 0?
October 20, 2009 by Ashlynn

physics
A 297-kg motorcycle is accelerating up along a ramp that is inclined 25.9° above the horizontal. The propulsion force pushing the motorcycle up the ramp is 3156 N, and air resistance produces a force of 300 N that opposes the motion. Find the magnitude of the motorcycle's ...
September 25, 2012 by Kristie

physics
A 301-kg motorcycle is accelerating up along a ramp that is inclined 30.0º above the horizontal. The propulsion force pushing the motorcycle up the ramp is 3420 N, and air resistance produces a force of 230 N that opposes the motion. Find the magnitude of the motorcycle's ...
October 3, 2012 by jean

Physics
At the instant a race began, a 89.1 kg sprinter exerted a force of 710 N on the starting block in the direction 110 degrees measured clockwise from the positive x-axis. (a) What was the horizontal acceleration of the sprinter? a_x = (b) If the force was exerted for 0.7 s, ...
February 21, 2014 by Rylan

math
body of mass 7 kg moves in a (counterclockwise) circular path of radius 4 meters, making one revolution every 13 seconds. You may assume the circle is in the xy-plane, and so you may ignore the third component. how do you find the centripetal force acting on the body how do ...
February 18, 2009 by alice

Physics
I'm not sure how to go about solving this problem the algebra gets very messy... At what distance formt he EArth will a spacecraft on the way to the Moon experiance zero net force due to there two bodies because the Earth and Moon pull with equal and opposite force? THANKS
December 23, 2009 by Jake

Physics
The tops of the towers of the Golden Gate Bridge, in San Francisco, are 227m above the water. Suppose a worker drops a wrench from the top of a tower. If the average force of air resistance is 22% of the force of free fall, with what speed will the wrench hit the water?
November 6, 2011 by Danielle

physics
A cylinder of mass M=58 kg, radius R=1.3 m and moment of inertia I=(1/2)MR2 is initially rotating around its central axis with an angular velocity ωi= 1.8 rad/s. A tangential force F of constant magnitude applied to the edge of the cylinder during 5.9 s brings it to rest...
March 25, 2012 by katie

Physics
A 46.4-N force is applied to the outer edge of a door of width 1.26 m in such a way that it acts (a) perpendicular to the door (b) at an angle of 43.0 degrees with respect to the door surface, (c) so that the line of action of the force passes through the axis of the door ...
October 30, 2012 by Anonymous

physics
the coefficients of static and kinetic friction for stone on wood are, respectively, 0.5 and 0.4. if a 150 kg stone statue is pushed with just enough force to start moving across a wooden floor and the same force continues to act afterward. find the statue’s acceleration.
November 7, 2012 by tom

physics
An object is in equilibrium under the action of three forces.Two of these forces,A an B,are illustrated in the accompanying diagram.The third force,F,is not illustrated. 3.1What is meant by the resultant of A and B? 3.2Determine by means of accurate construction and ...
February 6, 2013 by sphelele

Physics
A 17.9 kg block is dragged over a rough, hor- izontal surface by a constant force of 74.1 N acting at an angle of angle 32.3◦ above the horizontal. The block is displaced 72.4 m and the coefficient of kinetic friction is 0.242. Find the work done by the 74.1 N force. The...
June 22, 2014 by Kaylee

physics
A woman does 340 J of work to move a table 4 m across the floor. What is the magnitude of the force that the woman applied to the table if this force is applied in the horizontal direction?
February 2, 2010 by Anonymous

physics
A woman does 340 J of work to move a table 4 m across the floor. What is the magnitude of the force that the woman applied to the table if this force is applied in the horizontal direction?
February 2, 2010 by Anonymous

Science
A man pushes a lawn mower on a level lawn with a force of 203 N. If 44% of the force is directed horizontally, how much work is done by the man in pushing the mower 5.4 m?
September 19, 2012 by KeKe

Phtsics
Two identical point charges are separated by a distance of 3.0 cm and they repel each other with a force of 4 X 10^-5 N. What is the new force if the distance between the point charges is doubled?
February 14, 2013 by Adrian

Physics
A 4kg mass is pushed with a constant force for 1m then off the edge of the table and lands 7m from the edge of the table. a) What was the force pushing on the mass? b) What is the resultant velocity?
March 7, 2013 by Emma

PHYSICS
An object has an acceleration of 0 m/s squared. Does this mean that the object must be stationary. Explain. Stationary means that the object does not move. I don't think that the object must be stationary in this case because the scalar zero only tells us that the speed of the...
July 21, 2010 by Anonymous

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

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