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: 22,720

College Physics
The driver of a 1600 kg car, initially traveling at 10.6 m/s, applies the brakes, bringing the car to rest in a distance of 23.0 m. (a) Find the net work done on the car. (b) Find the magnitude and direction of the force that does this work. (Assume this force is constant.)
Monday, October 10, 2011 at 9:43am by Suzy

physics
A 0.025 kg golf ball moving at 27 m/s crashes through the window of a house in 5.0 10-4 s. After the crash, the ball continues in the same direction with a speed of 10 m/s. Assuming the force exerted on the ball by the window was constant, what was the magnitude of this force?
Tuesday, January 25, 2011 at 11:09pm by jesse

Calc 3
A wrench .9m long lies along the positive y-axis, and grips a bolt at the origin. A force is applied in the direction of (0,1,3) at the end of the wrench. Find the magnitude of the force in newtons needed to supply 100 J of torque to the bolt. This is the formula i have: T=|r ...
Thursday, September 13, 2007 at 11:10pm by Raquel

Physics
A weight lifter returned from the grocery store and unpacked his purchases, fitting everything into the refrigerator door. If the dimensions of the door are 2 meters * 0.57 meters, and he applies a force of 77 N at an angle of 120 degrees with respect to the door, what is the ...
Thursday, March 29, 2007 at 9:20am by Christinia

college physics
Oh, the larger block (mass) is in front. The force is pushing on the large mass and the little mass is in front of the large mass. Force -> Big Mass -> little mass Acceleration isn't given, it's just asking the "magnitude of the force of either of ...
Thursday, December 17, 2009 at 8:44pm by Ryan

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...
Friday, February 25, 2011 at 5:02pm by erika

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...
Saturday, July 2, 2011 at 1:59pm by alexa

Physics
An object with a charge of -4.4 uC and a mass of 1.4×10^−2 kg experiences an upward electric force, due to a uniform electric field, equal in magnitude to its weight. Find the magnitude of the electric field. Find the direction of the electric field. If the the...
Monday, January 23, 2012 at 11:42pm by Cooper

PHYSICS
A crate of potatoes of mass 23.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.65 and μk = 0.44. Find the frictional force (magnitude and direction) on the crate if the crate is at rest. Please help ...
Sunday, September 25, 2011 at 3:48pm by Shereen

Physics
two forces act concurrently on a 5kg block resting on a smooth horizontal surface a 5N force making a 40degree angle with the surface and a 10n making a 20degree angle with the surface. A) Determine the magnitude and direction of the net force acting on a box.
Monday, July 18, 2011 at 12:34am by Edward

Physics
A construction worker attempts to pull a stake out of the ground by pulling on a rope that is attached to the stake and makes an angle of 60.0 degrees with the horizontal. Then worker exerts a force of 125 newtons on the rope. What is the magnitude of the upward component of ...
Tuesday, November 23, 2010 at 3:45pm by Shayne

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 ...
Friday, October 8, 2010 at 9:22pm by monnie

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.
Monday, October 4, 2010 at 5:46pm by Heather

Physics
Two fraternities are in a tug of war. Theta Chi is pulling with a total force of 4,748 newtons to the east and Tau Kappa is pulling with a total force of 3,969 newtons to the west. What is the magnitude and direction of the resultant? Which team will win? Is it better to pull ...
Tuesday, November 27, 2012 at 3:15pm by Amanda

physics
The mass of the heavier block is 28 kg and the mass of the lighter blocks is 14 kg and the magnitude of the force of the connecting string on the smaller block is 24 N. Assume: g = 9.8 m/s^2 and the horizontal surface on which the objects slide is frictionless. Determine the ...
Friday, September 28, 2012 at 9:19pm by michelle

Physics
The net force is the diagonal that would be formed if you form a rectangle, with the two vectors being two of the adjacent sides. Use the diagonal that starts at the origin. You can get the magnitude of the net force vector from the Pythagorean theorem. F = sqrt[(400)^2 + (500...
Friday, December 25, 2009 at 10:17pm by drwls

physics
It will not be answered in units of k. It is asking for a force, so the units will be in Newtons. (I assume you meant "kN", which would be kiloNewtons.) The forces acting on the pilot at the bottom of the loop are gravity and the normal force. However, they are ...
Monday, December 12, 2011 at 4:26pm by Edwin

Physics
During a car crash a 65kg person's head goes from traveling at 50km h-1 to stationary in 0.15s. (a)What is the magnitude of the average net force acting on the head of a person with a 4.5kg head? (b)How does this compare with the weight force acting on the person?
Friday, September 21, 2012 at 8:43pm by Ellie

physics
Two horse pull horizontally on ropes attached to a stump. The two forces f1 and f2 that they apply to the stump are such that the net(RESULTANT) force R has a magnitude equal to that of F and makes an angle of 90 with F1. Let F1=1300 N and R =1300 N also. Find the magnitude of...
Sunday, March 4, 2012 at 11:57am by evelyn

Physics helppp
Figure 5-53 shows a man sitting in a bosun's chair that dangles from a massless, frictionless pulley and back down to the mans's hand. The combined mass of man and chair is 94 kg. Fig. 5-53 With what force magnitude must the man pull on the rope if he is to rise (a) ...
Wednesday, July 14, 2010 at 12:01pm by Sam

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...
Sunday, October 7, 2012 at 11:32pm by Crown

physics
The sum of the three force vectors must be zero since there is no acceleration. The third force will be the equilibrant (which is minus the resultant) of the first two. Since the first two forces are perpendicular, the equilibrant magnitude is given by the Pythagorean theorem...
Saturday, October 15, 2011 at 9:17am by drwls

physics
A square, 0.52 m on a side, is mounted so that it can rotate about an axis that passes through the center of the square. This axis is perpendicular to the plane of the square. A force of 15.0 N lies in this plane and is applied to the square. What is the magnitude of the ...
Monday, November 15, 2010 at 2:53pm by Bella

Physics
A square, 0.52 m on a side, is mounted so that it can rotate about an axis that passes through the center of the square. This axis is perpendicular to the plane of the square. A force of 15.0 N lies in this plane and is applied to the square. What is the magnitude of the ...
Monday, November 15, 2010 at 2:37pm by Bella

Physics
A square, 0.69 m on a side, is mounted so that it can rotate about an axis that passes through the center of the square. This axis is perpendicular to the plane of the square. A force of 17.1 N lies in this plane and is applied to the square. What is the magnitude of the ...
Saturday, November 13, 2010 at 8:36pm by Mike

physics
how do you find the magnitude of the net force if you have 2 forces acting on an object: 8.4 N[S] and 7.5 N[E]
Thursday, December 3, 2009 at 9:14pm by Anonymous

Physics
A box of mass 250 kg slides 4.6 m down an inclined plane of 31°. Jim pushes against the box to keep it from accelerating. The coefficient of kinetic friction between the box and the ramp is 0.41 (a) Calculate the magnitude of the force exerted by Jim. (b) Calculate the ...
Thursday, March 8, 2012 at 9:11pm by Sarah

Physics
(a) Find the direction and magnitude of the net force acting on the skier. Magnitude N Direction perpendicular from the slope (into the ground) perpendicular from the slope (away from ground) downhill, parallel to slope away from the center of the earth towards the center of ...
Friday, October 26, 2012 at 1:32pm by Beginner Phys114

Physics
An elastic cord is attached to two back teeth and stretched across a front tooth. The purpose of this arrangement is to apply force to the front tooth. If the tension in the cord is 1.2 N what are the magnitude and direction of the force applied to the front tooth? Let +y be ...
Tuesday, September 14, 2010 at 10:52pm by Mr. D

PHYSICS
A man holds a 178N ball in his hand, with the forearm horizontal. He can support the ball in this position because of the flexor muscle force M, which is applied perpendicular to the forearm. The forearm weighs 22 N and has a center of gravity as indicated. Find (A) the ...
Monday, January 10, 2011 at 7:59am by Eissa

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&#...
Wednesday, October 3, 2012 at 9:37am by jean

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&#...
Tuesday, September 25, 2012 at 6:30pm by Kristie

Physics Tough question!
A pond has the shape of an ice cream cone with the tip slices off and has a depth of 5.00m. The atmospheric pressure above the pond is 1.01 *10^5 Pa. The circular top surface (radius = R2) and circular bottum (radis = R1) of the pond are both parrallel to the ground. The angle...
Monday, March 8, 2010 at 7:01pm by ALan

physics
In a popular amusement park ride, a rotating cylinder of radius 4.00 m is set in rotation at an angular speed of 5.00 rad/s. The floor then drops away, leaving the riders suspended against the wall in a vertical position. What minimum coefficient of friction between a rider&#...
Friday, July 11, 2008 at 8:07am by Elisa

physics
A 0.45 kg soccer ball approaches a player horizontally with a velocity of magnitude equal to 35 m/s. The player heads the ball straight back out horizontally, and the magnitude of the ball’s velocity after the collision is 40 m/s. The contact time between their head and ...
Thursday, July 12, 2012 at 1:34pm by Jessica

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 ...
Friday, February 16, 2007 at 1:33pm by anonymous

Physics
Determine the magnitude and direction of the total electric force on the +q charge by the +Q and -Q charges respectively. it should express and algebraic expression using Q,q,x,d and fundamental constants. -- I am trying to post a graph but it is not willing to so I will try ...
Sunday, August 28, 2011 at 9:52pm by AfterLife

Physics
A square, 0.36 m on a side, is mounted so that it can rotate about an axis that passes through the center of the square. The axis is perpendicular to the plane of the square. A force of 14.4 N lies in this plane and is applied to the square. What is the magnitude of the ...
Thursday, November 15, 2012 at 12:44am by Elizabeth

Physics HELP!!
A square, 0.74m on a side, is mounted so that it can rotate about an axis that passes through the center of the square. This axis is perpendicular to the plane of the square. A force of 26.8N lies in this plane and is applied to the square. What is the magnitude of the maximum...
Monday, November 12, 2012 at 5:43pm by Ann

physics
A 23.1 kg block is dragged over a rough, horizontal surface by a constant force of 95.0 N acting at an angle of angle 29.3 ° above the horizontal. The block is displaced 5.50 m, and the coefficient of kinetic friction is 0.341. Find the magnitude of the work done by the ...
Thursday, September 15, 2011 at 2:34pm by Elisabeth

Physics
A police officer in hot pursuit drives her car through a circular turn of radius 320 m with a constant speed of 74.5 km/h. Her mass is 55.0 kg. (a) What is the magnitude of the net force of the officer on the car seat? ______N (b) What is the angle (relative to vertical) of ...
Wednesday, October 28, 2009 at 12:44pm by jane

physics
Two 10 meter long wires are parallel to each other and 5 cm apart.They carry currents of 6.0 A in opposite directions. What is the magnitude and direction of the magnetic field at a point P,halfway between the wires? Calculate the force exerted by the left wire on the right ...
Sunday, May 24, 2009 at 6:39am by Sandhya

math
Freda Pulliam and Yank Hardy are on opposite sides of a canal, pulling a barge with tow ropes. Freda exerts a force of 50 pounds at 20 degrees to the canal, and Yank pulls at an angle of 15 degrees with just enough force so that the resultant force vector is directly along the...
Thursday, April 18, 2013 at 4:33pm by shrijana

Calculus
My logic was this, as stated from a text book, which also showed your way: the projection of vector a onto b is found by (magnitude a)(magnitude b)(vector b) all over (magnitude b)2
Monday, June 30, 2008 at 8:39pm by Derek

Science
a 51.0 kg uniform square sign, of edge L = 2.00 m, is hung from a horizontal rod of length dh = 3.00 m and negligible mass. A cable is attached to the end of the rod and to a point on the wall at distance dv = 4.00 m above the point where the rod is hinged to the wall. (a) ...
Saturday, December 13, 2008 at 5:22pm by Phillipe

physics
Three charges are fixed to an x, y coordinate system. A charge of +12 µC is on the y axis at y = +3.0 m. A charge of -14 µC is at the origin. Lastly, a charge of +50 µC is on the x axis at x = +3.0 m. Determine the magnitude and direction of the net ...
Tuesday, January 23, 2007 at 5:02pm by Ann

physics
6) A sub has a volume of 20 m3 and a density of 1500 kg/m3. It sinks to a depth of 40 meters. The density of sea water is 1025 kg/m3. a. What is the pressure on the sub at this depth? b. The sub has a window with a diameter of 30 cm. What is the net force on the window of the ...
Sunday, January 22, 2012 at 12:00pm by Kat

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...
Wednesday, November 4, 2009 at 3:46pm by Shawna

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 ...
Thursday, September 27, 2007 at 9:01pm by Mary

physics
Five boys are pushing on a snowball, and each is pushing with a force of 20.0 N. However, each boy is pushing in a different direction. They are pushing north, northeast, east, southeast, and south. (Each boy is pushing at an angle of 45.0° relative to his neighbor.) What ...
Friday, June 11, 2010 at 11:59am by anonymous

Physics
Two large, parallel, conducting plates are 20 cm apart and have charges of equal magnitude and opposite sign on their facing surfaces. An electrostatic force of 3.0 10-15 N acts on an electron placed anywhere between the two plates. (Neglect fringing.) a) Find the magnitude of...
Saturday, April 27, 2013 at 12:32am by Lex

Physics
The left end of a 1-kg, 1.0 m long uniform thin rod is attached to a pivot, about which it can rotate freely. A force F is applied at the right end of the rod at 30 degree angle to hold the rod stationary in a horizontal position. What is the magnitude of the force F? I think ...
Sunday, April 21, 2013 at 10:31am by gina

physics
A 67.7 kg person jumps from rest off a 3.11 m-high tower straight down into the water. Neglect air resistance during the descent. She comes to rest 1.04 m under the surface of the water. Determine the magnitude of the average force that the water exerts on the diver. This ...
Monday, February 20, 2012 at 10:33am by Joe

Physics
A person is making homemade ice cream. She exerts a force of magnitude 23 N on the free end of the crank handle, and this end moves in a circular path of radius 0.35 m. The force is always applied parallel to the motion of the handle. If the handle is turned once every 1.6 s, ...
Monday, February 25, 2008 at 2:32pm by Eric

Physics
A horse is trotting along pulling a sleigh through the snow. To move the sleigh, of mass m, straight ahead at a constant speed, the horse must pull with a force of magnitude T. What is the net force acting on the sleigh? What is the coefficient of kinetic friction between the...
Monday, February 22, 2010 at 9:06pm by Max

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 ...
Thursday, February 15, 2007 at 5:02pm by Frank

physics
Two forces act on an object. The magnitude of the net force acting on the object a. equals the sum of the magnitude of the two forces b. equals the difference in the magnitudes of the two forces c. equals the average of the two forces d. cannot be determined from the given ...
Wednesday, February 6, 2013 at 11:29am by Carolyn

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- ...
Wednesday, October 17, 2012 at 9:17pm by allie

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 ...
Wednesday, March 5, 2008 at 12:28pm by Zach

physics
A six kilogram object undergoes an acceleration of 2.0 meters per second squared. Part a. What is magnitude of the net force acting on the object? Part B. If the same force is applied to a 4 kilogram object what acceleration is produced?
Wednesday, October 19, 2011 at 12:11am by katrina

science
force on pod proportional to mass of object/distance squared mass of earth >>mass of moon therefore distance from moon must be smaller to get same force magnitude from each.
Friday, November 7, 2008 at 7:53pm by Damon

Physics
Under the influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. When the drive force is shut off, the snowmobile coasts to a halt. The snowmobile and its rider have a mass of 136 kg. Under the influence of a drive force ...
Wednesday, October 24, 2012 at 9:42am by jim

PHYSICS
pete and john play a game of tug f war on a frictionless icy curface. pete weighs 539 N and john weights 392 N. during the course of the game, john accelerates toward pete at a rate of 3 m/s^2 a)what's the magnitude of the force that peter exerts on john? b)what's the ...
Saturday, January 23, 2010 at 4:33pm by samir

Math
An electron accelerates from rest to the right, in a horizontally directed electric field. The electron then leaves the electric field at a speed of 4.0 × 106, entering a magnetic field of magnitude 0.20 T (Tesla) directed into the screen. Calculate the magnitude and ...
Saturday, February 23, 2013 at 4:30pm by Ginny

physics
What magnitude is not possible when a vector of magnitude 3 is added to a vector of magnitude 4? choices: a.7 b.0 c.3 d.1 e. 5 I dont think its a. or d.
Tuesday, June 14, 2011 at 12:18am by naomi

physics
What is the magnitude of the electrostatic force on a +5 C harge 1.75 m to the left of a -2.5 C Charge? (show your work)
Tuesday, May 14, 2013 at 10:38am by Mandy

Physics
A downward force of 5.1 N is exerted on a -7.3 mcirco C charge. What is the magnitude of the electric field at this point?
Saturday, February 9, 2013 at 11:55pm by Heidi

physics
What must be the magnitude of the force of static friction between the surface and the bottom of the crate?
Friday, December 7, 2012 at 12:59am by Anonymous

physics
The force magnitude will get multiplied by a factor 2.7/5 = 0.54, making it 0.297 N, and the direction will reverse
Monday, January 30, 2012 at 10:46pm by drwls

physics
a student does 314 J of work in moving a desk 2.1 m. What was the magnitude of the applied horizontal force?
Thursday, January 27, 2011 at 5:59pm by amber

PHYSICS
WHAT IS MAGNITUDE OF NORMAL FORCE IN FIGURE WITH V=+3M/S +10n INSIDE BOX IS 5KG
Wednesday, January 19, 2011 at 11:44pm by SANDY

PHYSICS
WHAT IS MAGNITUDE OF NORMAL FORCE IN FIGURE WITH V=+3M/S +10n INSIDE BOX IS 5KG
Wednesday, January 19, 2011 at 11:43pm by SANDY

science
4.0 N since it's oppo directions so the magnitude of net force is absolute valure of the 2 numbers
Saturday, November 6, 2010 at 11:18pm by hy

Physics
yes, I did it only in ORDER OF MAGNITUDE, to show you that your force was way off. You need to do it accurately.
Wednesday, February 11, 2009 at 10:45pm by bobpursley

Physic
A 3.5 kg block is pushed along a horizontal floor by a force of magnitude 15 N at an angle è = 40° with the horizontal. The coefficient of kinetic friction between the block and the floor is 0.25. Calculate the magnitudes of (a) the frictional force on the block ...
Wednesday, September 28, 2011 at 9:25pm by Don

trig
A 2000 pound car is parked on a street that makes an angle of 12* with the horizontal (think it's a street on a hill). a) find the magnitude of the force required to keep the car from rolling down the hill. b) Find the force perpendicular to the street.
Wednesday, May 25, 2011 at 11:24am by ale

physics
A flea pulls on a puck with force 8 microN at an angle of 75°. Another flea pulls on the puck with force 2 microN at an angle of -45°. (See diagram for angle scale.) Draw vectors on the diagram to scale representing the forces. Carefully add the vectors tip-to-tail. (...
Wednesday, May 19, 2010 at 2:09am by jon smith

Physics
The tail of a vector is fixed to the origin of an x, y axis system. Originally the vector points along the +x axis. As time passes, the vector rotates counterclockwise. Describe how the sizes of the x and y components of the vector compare to the size of the original vector ...
Monday, May 7, 2007 at 10:25am by Panda

Mechanics & hydromechanics
Three forces pulling on a body are in equilibrium. The direction of one is due south, the direction of another is 80 degrees east of north, and the third force acts in the direction of 35 degrees west of north. If the magnitude of southerly force is 38 N, find the magnitudes ...
Wednesday, January 16, 2013 at 8:07pm by joe

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 ...
Wednesday, November 16, 2011 at 8:51pm by Anonymous

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 ...
Wednesday, November 11, 2009 at 4:40pm by sarah

urgent physics
A power line carries a current of 110 A at a location where the Earth's magnetic field has a magnitude of 0.37 Gauss (0.37·10-4 T) and points due north, very nearly parallel to the ground. Find the direction and magnitude of the magnetic force exerted on a 270 m ...
Friday, November 4, 2011 at 3:40pm by sonia

physics
A Chinook salmon has a maximum underwater speed of 3.0 m/s, and can jump out of the water vertically with a speed of 4.8 m/s. A record salmon has a length of 1.5 m and a mass of 62 kg. When swimming upward at constant speed, and neglecting buoyancy, the fish experiences three ...
Monday, March 11, 2013 at 10:52am by Anonymous

physics
A 50.0-kg box is sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. You observe that at one instant the box is sliding to the right at 1.5 m/s and that it stops in 2.5 s with uniform acceleration. What magnitude force does friction ...
Thursday, February 14, 2013 at 4:34pm by joe

physics for physical science
(a)what is the magnitude of the gravitational force of the earth on a surveillance satellite of mass 1040kg that is in a grazing circular orbit 100 km above the surface of the earth. (b)find the magnitude of the acceleration of the satellite in such a grazing orbit. (c)...
Friday, April 26, 2013 at 11:27am by lonia

Physics
1.There are four charges, each with a magnitude of 2.5 µC. Two are positive and two are negative. The charges are fixed to the corners of a 0.29 m square, one to a corner, in such a way that the net force on any charge is directed toward the center of the square. Find ...
Wednesday, February 7, 2007 at 10:57pm by Todd

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 ...
Monday, February 6, 2012 at 5:10pm by DCM

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...
Tuesday, April 1, 2008 at 2:47pm by Kelly

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...
Monday, October 18, 2010 at 10:22pm by Lisa

Physics
A delivery person pulls a 35 kg box across the floor. The applied force exerted on the box is 122.5 N [38o above the horizontal]. The force of kinetic friction on the box has a magnitude of 55.0 N. The box starts from rest. Using the Work-energy theorem, determine the speed of...
Saturday, November 12, 2011 at 4:48pm by holly

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