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July 25, 2014

Search: What is the magnitude of the force a +12 µC charge exerts on a +2.9 mC charge 43 cm away?

Number of results: 18,229

Mechanics
A particle of mass 5 kg is acted upon by a horizontal force of magnitude 16 N for 8 seconds, in which time it moves from rest until it is traveling with a speed v m/s. The particle continues to move with this speed for the next 15 seconds. it is brought to rest by the ...
October 19, 2011 by Joshua

Physics
A particle of mass 5 kg is acted upon by a horizontal force of magnitude 16 N for 8 seconds, in which time it moves from rest until it is traveling with a speed v m/s. The particle continues to move with this speed for the next 15 seconds. it is brought to rest by the ...
October 19, 2011 by Joshua

Physics help----------thanks
A charged cloud system produces an electric field in the air near the Earth's surface. A particle of charge -2.2 10-9 C is acted on by a downward electrostatic force of 3.0 10-6 N when placed in this field. (c) What is the magnitude of the gravitational force Fg on the proton...
February 15, 2007 by Frank

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
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

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

HS Physics
Please help...I know the direction is up, but I can't figure out the magnitude, except that its label is kg · m/s, I think. A 0.400-kg ball is dropped from rest at a point 1.80 m above the floor. The ball rebounds straight upward to a height of 0.730 m. What are the magnitude ...
October 15, 2010 by Tzana

Physic
Just an instant before reaching the very bottom of a semicircular section of a roller coaster ride, the automatic emergency brake inadvertently goes on. Assume the car has a total mass of 850 kg, the radius of that section of the track is 53.0 m, and the car entered the bottom...
May 8, 2011 by Jason

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
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
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
Due to friction with the air, an airplane has acquired a net charge of 1.70 10-5 C. The plane moves with a speed of 3.15 102 m/s at an angle with respect to the earth's magnetic field, the magnitude of which is 5.00 10-5 T. The magnetic force on the airplane has a magnitude of...
September 27, 2007 by Mary

Physics
Assume cathy has to drag her suitcase along the floor of the airport terminal by a rope. The rope makes a 40.0 degree angle with the horizantal. The suitcase has a mass of 36.0 kg and Cathy pulls on the rope with a force of 65.0 N. a) What is the magnitude of the normal force ...
October 18, 2010 by Lisa

Physics
Assume cathy has to drag her suitcase along the floor of the airport terminal by a rope. The rope makes a 40.0 degree angle with the horizantal. The suitcase has a mass of 36.0 kg and Cathy pulls on the rope with a force of 65.0 N. a) What is the magnitude of the normal force...
October 18, 2010 by Lisa

physics
A baseball player hits a baseball (m = 0.145 kg) The ball is initially traveling horizontally with speed of 36 m/s. The batter hits a fly ball as shown, with a speed vf = 54 m/s. (a) What is the magnitude and direction of the impulse imparted to the ball? (b) If the ball (m = ...
October 5, 2010 by anna

physics
A 17 kg block is dragged over a rough, hor- izontal surface by a constant force of 170 N acting at an angle of angle 32.1◦ above the horizontal. The block is displaced 33.9 m, and the coefficient of kinetic friction is 0.199. a] find the work done by 170N b] find the ...
November 14, 2010 by mary

free-body diagram help
A 20.0 kg block is being pushed forward on a flat surface with a force of magnitude 45.0 N against a frictional force of 13.0 N To draw this free-body diagram, would I only have the forces mentioned in the question? or would i include the -9.8m/s^2 force of gravity? Also, how ...
April 13, 2014 by Liz

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 15 kg box sits on a horizontal force. the coefficient of static fricition between the box and the surface is 0.70. if a force P is exerted on the box at an angle directed 37 degrees below the horizontal, what must be the magnitude of P to get the box moving??
August 26, 2012 by Teresa

Physics
A 15 kg box sits on a horizontal force. the coefficient of static fricition between the box and the surface is 0.70. if a force P is exerted on the box at an angle directed 37 degrees below the horizontal, what must be the magnitude of P to get the box moving??
August 27, 2012 by Daniella

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

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

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
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 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

Physics
A uniform electric field of magnitude 370 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.70 cm. (a) What is the work done by the field on the electron? J? (b) What is the change in potential energy associated ...
September 16, 2010 by Max

physics- vertical circular motion
For the normal force in the drawing to have the same magnitude at all points on the vertical track, the stunt driver must adjust the speed to be different at different points. Suppose, for example, that the track has a radius of 2.06 m and that the driver goes past point 1 at ...
February 9, 2013 by Anonymous

Physics bobpursley
hello ok i realized what you meant. =) An object of mass M = 921 g is pushed at a constant speed up a frictionless inclined surface which forms an angle θ = 50o with the horizontal. The normal force acts perpendicular to the slope. The slope is the x-component and y ...
October 14, 2009 by Nala

Physics
Two electrons are separated by 1 meter. What is the ratio of the magnitude of the electric force on one electron and the gravitational force on that electron due to the other electron? The charge of an electron is 1.6×10−19C and its mass is 9.1×10−31kg.
February 22, 2013 by P

physics
An electron is moving through a magnetic field whose magnitude is 8.70*10^-4 T. The electron experiences only a magnetic force and has an acceleration of magnitude 3.50*10^14 m/s^2. At a certain instant, it has a speed of 6.80*10^6m/s. Determine the angle (less than 90degrees...
April 1, 2008 by Kelly

physicscalculus
An automobile with a mass of 1310 kg has 3.10 m between the front and rear axles. Its center of gravity is located 1.78 m behind the front axle. The automobile is on level ground. (a) Determine the magnitude of the force from the ground on each front wheel (assuming equal ...
December 13, 2008 by Jane

Physics
a)If a Magnesium nucleus is fixed a distance away from a charge, what is the magnitude of the electrostatic force it experiences in Newtons (yes, it is a small force in Newtons)? b)If the charge is at the origin and the Magnesium nucleus is from the origin in the direction, at...
November 9, 2013 by Anton

physics
A 2.0kg box rests on a plank that is inclined at an angle of 65° above the horizontal. The upper end of the box is attached to a spring with a force constant of 25 N/m. If the coefficient of static friction between the box and the plank is 0.17, what is the maximum amount the ...
May 21, 2007 by micole

Physics
The knot at the junction is in equilibrium under the influence of four forces acting on it. The F force acts from above on the left at an angle of with the horizontal. The 6 N force acts from above on the right at an angle of 47◦ with the horizontal. The 5.4 N force ...
October 24, 2010 by Kaitlyn

Physics
The front 1.20 m of a 1,350-kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision. (a) If a car traveling 22.0 m/s stops uniformly in 1.20 m, how long does the collision last? s (b) What is the magnitude of the average force on the car? N (c...
October 4, 2011 by Allie

Physics
Two charged particles exert an electrostatic force of 8 N on each other. What will the magnitude of the electrostatic force be if the distance between the two charges is REDUCED to one-third of the original distance? Would you just have to multiply 8 by 9?
January 31, 2011 by Kim

physics
A person pushes a 11.3-kg shopping cart at a constant velocity for a distance of 19.4 m on a flat horizontal surface. She pushes in a direction 29.2 ° below the horizontal. A 44.6-N frictional force opposes the motion of the cart. (a) What is the magnitude of the force that ...
October 19, 2011 by mica

Physics
A 250N force is applied at an angle of 32 degrees above the horizontal to a 96kg box causing it to slide along a floor. The coefficient of friction between the box and the floor is 0.18. What is the magnitude of the net force on the box? The answer is 67N, I'm just not sure ...
March 10, 2013 by Julia

physics
Sue and Jenny kick a soccer ball at exactly the same time.Sue's foot exerts a force of 62.3 N to the north. Jenny's foot exerts a force of 115.9 N to the east. What is the magnitude of the resultant force on the ball? Answer in N. What is the direction of the resultant force (...
July 2, 2011 by alexa

Trig Math
I need help with this problem. I don't get how to do it or how they got that answer. A force of 50 pounds acts on an object at an angle of 45 degrees. A second force of 75 pounds acts on the object at an angle of -30 degrees. What was the direction and the magnitude of the ...
March 29, 2010 by Jane

physics
What is the magnitude of electrostatic force that acts on each sphere?
February 15, 2014 by Anonymous

physics
There is a 0.225 T magnetic field directed along the +x axis and a field of unknown magnitude along the +y axis. A particle carrying a charge of 7.20 10-5 C experiences a maximum force of 0.455 N when traveling at a speed of 2 104 m/s through the region where the fields are. ...
February 10, 2008 by rick

physics
Only two forces act on an object (mass = 4.20 kg), as in the drawing. (F = 73.0 N.) Find the magnitude and direction (relative to the x axis) of the acceleration of the object. magnitude m/s2 direction ° counterclockwise from the +x axis The angle from the block is pointing 45...
October 13, 2011 by Taylor

Physics
An -particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.10 106 V and then enters a uniform magnetic field whose magnitude is 3.10 T. The -particle moves perpendicular to the magnetic field ...
February 6, 2012 by DCM

Physics
An á-particle has a charge of +2e and a mass of 6.64 10-27 kg. It is accelerated from rest through a potential difference that has a value of 1.16 106 V and then enters a uniform magnetic field whose magnitude is 3.00 T. The á-particle moves perpendicular to the magnetic field...
March 25, 2013 by Don

Grade 12 physics
At the beach, 3 children pull on a floating toy. Child 1 plus with a force of 15N [N 24°E], child 2 pulls south and child 3 pulls west. The net force of the toy is zero. Assume that there are no other significant forces acting on the toy. a) Calculate the magnitude of the ...
September 29, 2013 by keisha

physics
Let the radius oh a circular segment be 110 m, the mass of the car 1508 kg, and the coefficient of the static friction between the road and tire 0.9. Find the magnitude of the normal force N which the road evers on the car at the optional speed (the spurred at which the ...
October 11, 2011 by Kyra

Physics
ohh sorry, in my first question... A 15 kg box sits on a horizontal FORCE. the coefficient of static fricition between the box and the surface is 0.70. if a force P is exerted on the box at an angle directed 37 degrees below the horizontal, what must be the magnitude of P to ...
August 27, 2012 by Daniella

Physics
A box is pushed down an incline from point A to point B by a force F (and also under the influence of its weight). The distance from A to B, along the ramp, is 5.0 m. The force F is parallel to the incline, as shown, and has a magnitude of 2.0 N. The force of kinetic friction ...
May 30, 2014 by Abby

Vectors/Magnitude
The vector v has a magnitude of 89.7 feet and a direction of 12(degree sign)48'. find the magnitude of its vertical component a: 887.47 ft b: 19.87 ft c: 19.38 ft d: 87.58 ft
April 22, 2012 by Some1 Help Me Plz

Physics
When a golf club strikes a golf ball, the club is in contact with the ball for about .0016 s. The 45-g ball acquires a speed of 71 m/s. a) What is the magnitude of the impulse applied to the ball? b) Estimate the magnitude of the average force exerted by the club on the ball ...
April 4, 2011 by Aestas

physics
Two boxes (b1 = 23 kg and b2 = 57 kg) are being pushed across a horizontal frictionless surface, as the drawing shows. The 48-N pushing force is horizontal and is applied to the 23-kg box, which in turn pushes against the 57-kg box. Find the magnitude of the force that the 23-...
February 10, 2012 by cody

physics
Three blocks are in contact with each other on a frictionless horizontal surface. A 696 N horizontal force is applied to the block with mass of 4.7 kg as shown in the figure below. The acceleration of gravity is 9.8 m/s 2 . 4.7 kg 5.5 kg 7.1 kg d) What is the magnitude ...
October 19, 2012 by Anonymous

Physics
Two blocks connected by a string are pulled across a rough horizontal surface by a force applied to one of the blocks, as shown. The acceleration of gravity is 9.8 m/s2 . If each block has an acceleration of 5.2 m/s2 to the right, what is the magnitude of the applied force? ...
June 22, 2014 by Kaylee

physics
Two forces, of magnitudes F1= 80.0N and F2= 50.0N, act in opposite directions on a block, which sits atop a frictionless surface, as shown in the figure. Initially, the center of the block is at position x1= -3.00cm. At some later time, the block has moved to the right, and ...
June 15, 2011 by physics please show steps

physics
Part 1 A 15.6 kg block is dragged over a rough, hor- izontal surface by a constant force of 72.2 N acting at an angle of angle 34.8 above the horizontal. The block is displaced 24.6 m and the coefficient of kinetic friction is 0.234. Find the work done by the 72.2 N force. ...
February 25, 2011 by erika

calculus
newtons law of gravitation says that the magnitude F of the force exerted by a body of mass m on a bod of mass M is F=GmM/r^2 where G is the gravitational constant and r is the distance between the bodies. a)find dF/dr and explain its meaning. What does te minue sign mean? b)...
October 11, 2007 by cassie

Physics
A diving board length 5.60m that weighs 250N is supported by two pillars. One pillar is at the left end of the diving board, as shown below; the other is distance 1.55m away . Find the magnitude of the force exerted by the left pillar when a 90.0kg diver stands at the far end ...
December 1, 2010 by ree

physics
A block weighing 11.05 N rests on a 28 degree incline. (a) Find the normal force exerted by the plane on the block out of the plane (b) Find the frictional force exerted by the plane on the block up the slope. c) Find the magnitude of the total force exerted by the plane on ...
October 31, 2012 by anthony

Physics
A small bead of mass m is constrained to move along a frictionless track as shown. The track consists of a semicircular portion of radius R followed by a straight part. At the end of the straight portion there is a horizontal spring of spring constant k attached to a fixed ...
October 14, 2013 by Anonymous

PHYSICS (HELP)
A small bead of mass m is constrained to move along a frictionless track as shown. The track consists of a semicircular portion of radius R followed by a straight part. At the end of the straight portion there is a horizontal spring of spring constant k attached to a fixed ...
October 14, 2013 by Anonymous

physics
A small bead of mass m is constrained to move along a frictionless track as shown. The track consists of a semicircular portion of radius R followed by a straight part. At the end of the straight portion there is a horizontal spring of spring constant k attached to a fixed ...
October 14, 2013 by Anonymous

physics
A small bead of mass m is constrained to move along a frictionless track as shown. The track consists of a semicircular portion of radius R followed by a straight part. At the end of the straight portion there is a horizontal spring of spring constant k attached to a fixed ...
October 15, 2013 by ss01

physics
A 53.0-kg person jumps from rest off a 12.0-m-high tower straight down into the water. Neglect air resistance. She comes to rest 3.00 m under the surface of the water. Determine the magnitude of the average force that the water exerts on the diver. This force is nonconservative
July 10, 2013 by sal

Physics - please help!
Particles 1 and 2 of charge q1 = q2 = +3.20 x 10-19 C are on a y axis at distance d = 22.0 cm from the origin. Particle 3 of charge q3 = +9.60 x 10-19 C is moved gradually along the x axis from x = 0 to x = +5.0 m. At what value of x will the magnitude of the electrostatic ...
April 3, 2011 by Char

Phyiscs - Electro static
Particles 1 and 2 of charge q1 = q2 = +3.20 x 10-19 C are on a y axis at distance d = 22.0 cm from the origin. Particle 3 of charge q3 = +9.60 x 10-19 C is moved gradually along the x axis from x = 0 to x = +5.0 m. At what value of x will the magnitude of the electrostatic ...
April 2, 2011 by will

Phys help!!!!
A diving board length 5.60m that weighs 250N is supported by two pillars. One pillar is at the left end of the diving board,the other is distance 1.55m away . Find the magnitude of the force exerted by the left pillar when a 90.0kg diver stands at the far end of the board. ...
December 1, 2010 by ree

trigonometry
Find the magnitude of the resultant force and the angle between the resultant and each force: Forces of 2 lbs and 12 lbs at an angle of 60 degrees to each other.
November 27, 2012 by mikey

Physics
we must apply a force of magnitude 82.0 N to hold the block stationary at x=-2.0 cm. From that position, we then slowly move the block so that our force does +8.0 J of work on the spring–block system; the block is then again stationary. What are the block's positions, in cm...
November 4, 2009 by Shawna

Physics
As a baseball is being caught, its speed goes from 27.5 m/s to 0.0 m/s in about 0.0050 s. The mass of the baseball is 0.150 kg. (a) What is the baseball's acceleration? 5500 m/s^2 (b) What are the magnitude and direction of the force acting on it? and is it in opposite in ...
January 5, 2010 by Sasha

Physics
A motorcycle has a constant speed of 24.0 m/s as it passes over the top of a hill whose radius of curvature is 129 m. The mass of the motorcycle and driver is 330 kg. Find the magnitude of (a) the centripetal force and (b) the normal force that acts on the cycle. I found the ...
March 5, 2008 by Zach

physics electricity and magnetism
We are told that the magnitude of the negative charge on the electron is exactly equal to the magnitude of the postive charge on the proton. But is it? Suppose that these magnitudes differ from each other by 0.000040 %. Each copper coin contains 3 X 1022 copper atoms. (a)With ...
July 1, 2010 by naveel

Physics
A 1,200-kg car is pulling a 305-kg trailer. Together, the car and trailer have an acceleration of 2.00 m/s2 in the positive x-direction. Neglecting frictional forces on the trailer, determine the following. (Indicate the direction with the sign of your answer. Take the forward...
October 7, 2012 by Crown

Physics
Babe Ruth steps to the plate and casually points to left center field to indicate the location of his next home run. The mighty Babe holds his bat across his shoulder, with one hand holding the small end of the bat. The bat is horizontal, and the distance from the small end of...
July 27, 2011 by AfterLife

physics help
A bowling ball (mass=72kg,Radius=0.11m) and A billiard ball (mass=0.47kg, Radius=0.028m)May each be treated as uniform sheres. What is the magnitude of the maximum gravitational force that each can exert on the other . The maximum gravitational force occurs when they are in ...
February 16, 2007 by anonymous

Physics/Math
A cold package of hot dogs slides rightward across a frictionless floor through a distance d = 20.5 cm while three forces are applied to it. Two of the forces are horizontal and have the magnitudes F1 = 5.00 N and F2 = 1.00 N; the third force is angled down by = 65.0° and has ...
March 1, 2007 by Technoboi11

physics
A car that weighs 1.5 × 10^4 N is initially moving at a speed of 43 km/h when the brakes are applied and the car is brought to a stop in 16 m. Assuming that the force that stops the car is constant, find (a) the magnitude of that force and (b) the time required for the change ...
October 8, 2010 by monnie

pre-calculas
An object is situated so that its center of mass is located at the origin.Three forces X,Y, and Z act on the object at the same time. Force X passes through the point (-3, -4), forve Y passes through the point (5,-12), and force Z passes throught the point (15,8). Forces X,Y, ...
May 10, 2012 by R

Physics
A small bead of mass m is constrained to move along a frictionless track as shown. The track consists of a semicircular portion of radius R followed by a straight part. At the end of the straight portion there is a horizontal spring of spring constant k attached to a fixed ...
October 10, 2013 by asha

Physics
An object rests on an inclined surface thanks to the presence of static friction forces between the object and the surface. The magnitude of the friction force that prevents the object from sliding is found to be 30 N. Now, the angle that the surface makes with respect to the ...
October 22, 2009 by Nikita

Physics
Two strong magnets on opposite sides of a small table are shown. The long-range attractive force between the magnets keeps the lower magnet in place. Suppose the weight of the table is 23.4 N, the weight of each magnet is 2.67 N, and the magnetic force on the lower magnet is 5...
November 1, 2010 by Bala

Physics
Two strong magnets on opposite sides of a small table are shown. The long-range attractive force between the magnets keeps the lower magnet in place. Suppose the weight of the table is 23.4 N, the weight of each magnet is 2.67 N, and the magnetic force on the lower magnet is 5...
November 1, 2010 by Bala

Physics
Two strong magnets on opposite sides of a small table are shown. The long-range attractive force between the magnets keeps the lower magnet in place. Suppose the weight of the table is 23.4 N, the weight of each magnet is 2.67 N, and the magnetic force on the lower magnet is 5...
November 1, 2010 by Bella

Physics
Two strong magnets on opposite sides of a small table are shown. The long-range attractive force between the magnets keeps the lower magnet in place. Suppose the weight of the table is 19.7 N, the weight of each magnet is 4.17 N, and the magnetic force on the lower magnet is 5...
November 3, 2010 by mathlife

physics
Two strong magnets on opposite sides of a small table are shown. The long-range attractive force between the magnets keeps the lower magnet in place. Suppose the weight of the table is 19.7 N, the weight of each magnet is 4.17 N, and the magnetic force on the lower magnet is 5...
November 3, 2010 by mathlife

Physics (Mathmate)
When a force is applied to an object with mass equal to the standard kilogram, the acceleration of the mass is 3.25 m/s2. When the same magnitude force is applied to another object, the acceleration is 2.75 m/s2. What is the mass of the object? What would the second object's ...
June 15, 2010 by Sarah

phsyics
Posted by MELANA on Thursday, October 18, 2007 at 5:14pm. An object in equilibrium has three forces exerted on it. A 30 N force acts at 90° from the x-axis and a 44 N force acts at 60° from the x-axis. What are the magnitude and direction of the third force? NO IDEA WHERE TO ...
October 18, 2007 by MELANA

Fluid Mechanics
The gate OAB under water is 5 m-wide and is hinged along O as shown. (a) Find the hydrostatic force on the horizontal surface AB. (b) Determine the magnitude and point of action of the hydrostatic resultant force on the vertical surface OA. (c) Draw a free body diagram of the ...
June 11, 2012 by Bob

physics
A 49-kg bungee jumper has fallen far enough that her bungee cord is beginning to stretch and resist her downward motion. Find the force (magnitude and direction) exerted on her by the bungee cord at an instant when her downward acceleration has a magnitude of 7.3 m/s2. Ignore ...
January 27, 2011 by brian

physics
A wire tooth brace used by orthodontists. The top-most tooth is protruding slightly, and the tension in the wire exerts two forces at 16 º angle on this tooth in order to bring it back into alignment. If the forces have the same magnitude of 19.5 N, what is the magnitude of ...
September 14, 2012 by marissa

Physics 1
The drawing shows a wire tooth brace used by orthodontists. The topmost tooth is protruding slightly, and the tension in the wire exerts two forces and ' on this tooth in order to bring it back into alignment. If the forces have the same magnitude of 15.0 N, what is the ...
October 29, 2012 by Donald

Physics
A relative of yours belly flops from a height of 2.50 m (ouch!) and stops moving after descending 0.500 m underwater. Her mass is 62.5 kg. What was the magnitude of her acceleration in the pool? Assume that it is constant. How long was she in the water before she stopped ...
May 29, 2014 by Arr-chan

physics PLEASE HELP
Two strong magnets on opposite sides of a small table are shown. The long-range attractive force between the magnets keeps the lower magnet in place. Suppose the weight of the table is 19.7 N, the weight of each magnet is 4.17 N, and the magnetic force on the lower magnet is 5...
November 3, 2010 by GENERIC

Physics PLEASE HELP
Two strong magnets on opposite sides of a small table are shown. The long-range attractive force between the magnets keeps the lower magnet in place. Suppose the weight of the table is 19.7 N, the weight of each magnet is 4.17 N, and the magnetic force on the lower magnet is 5...
November 3, 2010 by GENERIC

physics
A person of mass m jumps off the ground. Suppose the person pushes off the ground with a constant force of magnitude F for T seconds. What was the magnitude of the displacement of the center of mass of the person while they were in contact with the ground? Express your answer ...
October 24, 2013 by Anonymous

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