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July 29, 2014

Search: A 1.400 kg bead slides on a curved wire, starting from rest at point A in Figure P5.28. If the wire is frictionless, find each of the following

Number of results: 8,893

physics
A .400 kg bead slides on a curved wire, starting from rest at point A. If the wire in problem 61 is frictionless between points A and B (down 5m) and rough between B and C (up 2m), and if the bead starts from rest at A, (a) find the speed at B. (b) If the bead comes to rest at...
October 25, 2007 by Anonymous

physics
A 0.395-kg blue bead slides on a frictionless, curved wire, starting from rest at point in the figure below, where h = 1.50 m. At point , the blue bead collides elastically with a 0.650-kg green bead at rest. Find the maximum height the green bead rises as it moves up the wire.
October 18, 2012 by Alex

PHY 101
A 0.425-kg blue bead slides on a frictionless, curved wire, starting from rest at point where h = 1.50 m. At point , the blue bead collides elastically with a 0.675-kg green bead at rest. Find the maximum height the green bead rises as it moves up the wire. PLEASE HELP I HAVE...
October 6, 2012 by tom

General Physics
A 0.377 kg bead slides on a curved wire, starting from rest at point A(4.8 meters) as shown in the figure. The acceleration of gravity is 9.8 m/s2 . A. If the wire is frictionless, find the speed of the bead at B(0 Meters). Answer in units of m/s B. Find the speed of the bead ...
July 26, 2013 by Charles

physics
a green bead of mass 70 g slides along a straight wire. The length of the wire from point "A" to point "B" is 0.700 m, and point "A" is 0.400 m higher than point "B". A constant friction force of magnitude 0.020 0 N acts on the bead. If the bead is released from rest at point...
March 15, 2012 by Hector

physics
a green bead of mass 70 g slides along a straight wire. The length of the wire from point "A" to point "B" is 0.700 m, and point "A" is 0.400 m higher than point "B". A constant friction force of magnitude 0.020 0 N acts on the bead. If the bead is released from rest at point...
March 15, 2012 by Hector

DUMANGEZE
A 0.04KG BEAD SLIDES ON A CURVED STARTING FROM REST AT POINT A.THE EARTH FROM A AND B IS FRICTIONLESS ,WHILST THE PATH FROM B TO C IS ROUGH.IF THE BEAD ARRIVES AT POINT C WITH A SPEED OF 1M/S DERTIMINETHE AMOUNT OF WORKDONE BY THE FRICTIONAL FORCE IN PASSING FROM B TO C?
October 11, 2011 by THABAN

physics
A red bead releasd from rest at height H slides down a wire without sticking to a green bead initally at rest. The mass of the green bead is half that of the stuck together beads both continue to slide down the wire and then slide back up. With the starting height of the green...
December 6, 2011 by Margaret

physics
As shown in the figure below, a green bead of mass 50 g slides along a straight wire. The length of the wire from point to point is 0.800 m, and point is 0.500 m higher than point . A constant friction force of magnitude 0.020 0 N acts on the bead. (a) If the bead is released ...
November 25, 2011 by shahla

physics
LOOP, SPRING AND BEAD (14 points possible) A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (...
October 17, 2013 by Anonymous

physics
LOOP, SPRING AND BEAD (14 points possible) A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (...
October 18, 2013 by Anonymous

physics
LOOP, SPRING AND BEAD (14 points possible) A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (...
October 18, 2013 by Anonymous

physics (pls help)
LOOP, SPRING AND BEAD (14 points possible) A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (...
October 18, 2013 by Anonymous

physics pls help
LOOP, SPRING AND BEAD (14 points possible) A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (...
October 18, 2013 by Anonymous

PHYSICS
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 19, 2013 by PLS HELP ME

physics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 19, 2013 by PLS HELP ME

physics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 19, 2013 by Anonymous

physics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 20, 2013 by Anonymous

physics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 20, 2013 by Anonymous

PHYSICS
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 21, 2013 by Anonymous

physics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 17, 2013 by leonard

science
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 18, 2013 by anonymous

Physics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 18, 2013 by Allan

physics(HELP IT'S URGENT)
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 20, 2013 by Anonymous

PHYSICS URGENT HELP
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 20, 2013 by Anonymous

physics(elena)
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 20, 2013 by Anonymous

physics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 17, 2013 by Anonymous

Physics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 17, 2013 by Anonymous

PHYSICS(HELP)
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 18, 2013 by Anonymous

physics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 18, 2013 by Anonymous

PHYSICS(HELP)
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead ...
October 19, 2013 by michael

PHYSICS (HELP)
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 21, 2013 by Anonymous

physics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 21, 2013 by Anonymous

PHYSICS HELP!!!
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 21, 2013 by Anonymous

Physics Classical Mechanics
A bead of mass m slides without friction on a vertical hoop of radius R . The bead moves under the combined action of gravity and a spring, with spring constant k , attached to the bottom of the hoop. Assume that the equilibrium (relaxed) length of the spring is R. The bead is...
October 21, 2013 by Anonymous

General Physics
The 5 kg block in the figure slides down a frictionless curved ramp, starting from rest at a height of h = 3 m. The block then slides d = 12 m on a rough horizontal surface before coming to rest.What is the coefficient of friction between the block and the horizontal surface?
October 5, 2010 by Kevin

physics
A bead on a fixed ring and a spring A ring fixed to a support at the top is hanging vertically. A bead of mass m slides through the ring and is connected to the support through a spring of stiffness k as shown in the figure-1. The length of the unstretched spring is almost ...
December 29, 2011 by arslan

Physics - 2
A single bead can slide with negligible friction on a wire that is bent into a circular loop of radius 15.0 cm, as in Figure P6.68. The circle is always in a vertical plane and rotates steadily about its vertical diameter with (a) a period of 0.450 s. The position of the bead ...
October 6, 2011 by Whitney

physics
A ring fixed to a support at the top is hanging vertically. A bead of mass m slides through the ring and is connected to the support through a spring of stiffness k as shown in the figure-1. The length of the unstretched spring is almost negligible. Note that gravity acts. a. ...
December 30, 2011 by nain abbas

physics
Starting with an initial speed v0, a mass m slides down a curved frictionless track (a shown in the figure below), arriving at the bottom with a speed v. From what vertical elevation h did it start?
August 23, 2012 by Aisling

Physics
A bead slides without friction around a loop- the-loop. The bead is released from a height of 12.9 m from the bottom of the loop-the- loop which has a radius 4 m. The acceleration of gravity is 9.8 m/s2 . A 4m 12.9 m What is its speed at point A ? Answer in units of m/s
December 14, 2012 by Richard

6th Grade Math
It takes 56 colored beads to make a necklace. The beads are strung in the following order: one blue, two yellow, two green, and one red. Then the pattern repeats, starting again with the one blue bead. If the first bead is blue, what is the color of the last bead used? Show ...
May 18, 2010 by fko

physics
a single bead can slide with negligible friction on a wire that is bent into circular loop of radius 15 cm an in the figure. the circle is always in a vertical plane and rotates steadily about its vertical diameter with a period of 0.450 s. the position of the bead is ...
September 28, 2013 by hosni

physics
The 2 kg block in Figure 7-25 slides down a frictionless curved ramp, starting from rest at a height of h = 3 m. The block then slides d = 12 m on a rough horizontal surface before coming to rest. Figure 7-25 (a) What is the speed of the block at the bottom of the ramp? (b) ...
January 30, 2011 by Sierra

Physics
A perforated bead of mass 37g moves on a frictionless horizontal circular track of radius R=0.65m. The track runs through the bead. When the bead is at rest in the horizontal position, it is tied to a spring at the centre of the track. The unstretched length of the spring is R...
October 20, 2013 by Anonymous

Physics
A bead of mass m = 33.5 kg is released from point A which is located 5 m above the ground and slides on a frictionless track. Determine the bead's speed when it reaches point C which is located 2.0 m above the ground.
March 12, 2014 by Monica

physics
A circular steel wire 2.00 m is to stretch no more than 0.25 cm when a tensile force of 400 N is applied to each end of wire. What minimum diameter is required for the wire?
August 22, 2009 by colleen

physics
A 0.40-kg block slides along a small track with elevated ends and a flat central part. The flat part has a length L = 1.84 m. The curved portions of the track are frictionless, but for the flat part the coefficient of kinetic friction is 0.132. The block is released from rest ...
February 22, 2012 by Katie

college physics
A 0.50-kg block slides along a small track with elevated ends and a flat central part. The flat part has a length L = 1.85 m. The curved portions of the track are frictionless, but for the flat part the coefficient of kinetic friction is 0.103. The block is released from rest ...
March 25, 2012 by jerry

physics
a bead on a wire 30m high is released and reaches point A, where is loops twice towards the right. what is the velocity and acceleration at point A-D? point A is at 20m directly below from starting point. Point B is 10m at the bottom of the first loop. point C is in between ...
February 8, 2014 by christopher

physics
Item 9 A small glass bead has been charged to 20 Part A - What is the magnitude of the acceleration of a proton that is 4.0 from the center of the bead? Express your answer using two significant figures. = Part B - What is the direction of the acceleration of a proton that is...
August 29, 2011 by Paige

Physics
A wire is frictionless between points A and B and rough between B and C. A is 5m above the ground, B is zero, and C is 2m above the ground. The 0.400kg bead starts from rest at A. If the bead comes to rest at C, find the loss in mechanical energy as it goes from B to C. I can'...
November 6, 2011 by Katie

computers
Your final project incorporates many of the key concepts you have learned about in this course. In a 1,400- to 1,750-word paper, create a systems development plan for Bead Bar, according to the specifications below. Use the seven standard systems development life cycle phases ...
February 13, 2009 by hg1985

4th grade math
Barb is making a bead necklace. She strings 1 white bead, then 3 blue beads, then 1 white bead, and so on. Write the numbers for the first eight beads that are white. What is the rule for the pattern. Please help me explain this to my 4th grader
January 14, 2013 by Barb

Chemistry
Aluminum wire is sold on 10 pound spools (100.00 lbs). The diameter of a 12 gauge aluminum wire sold on these spools is 0.0808 inches. If the density of the aluminum is 2.70 g/ cm3. Wat is the length ( in meters) of the wire on the 10 pound spool of 12 gauge aluminum wire? How...
January 6, 2011 by leia

physics
A uniform horizontal wire with a linear mass density of 0.48 g/m carries a 1.9 A current. It is placed in a constant magnetic field, with a strength of 3.5 10-3 T, that is horizontal and perpendicular to the wire. Neglect the magnetic field of the Earth. (a) As the wire moves ...
April 1, 2012 by bob

physics
I'm not sure how to deal with this problem (we're just starting the unit)... I need to find the average voltage induced into a 100 turn coil by a vertical wire when the wire's current drops from 602A to 0A in 0.01 seconds. ...if the coil was drawn as a circle on paper, the ...
December 2, 2012 by Rachel

physics
Two identical twins, Amy and Beatrice, are on top of two different slides, one on each slide. Both slides start 3 m above the ground and end 0.5 m above the ground. Amy's slide is a straight, 45 degree slide with height given by h=−x+3 (so it starts at x=0 with a height ...
June 4, 2013 by keshav

physics
Two identical twins, Amy and Beatrice, are on top of two different slides, one on each slide. Both slides start 3 m above the ground and end 0.5 m above the ground. Amy's slide is a straight, 45 degree slide with height given by h=−x+3 (so it starts at x=0 with a height ...
June 7, 2013 by keshav

Physic II
A small glass bead that has been charged to 4.4 nC? What is the strength of the electric field 2.0 cm from the center of the bead? Please show all work
January 26, 2014 by Johnathan

Physic
A small glass bead that has been charged to 4.4 nC? What is the strength of the electric field 2.0 cm from the center of the bead? Please show all work
January 27, 2014 by Peri

physics
Consider two copper wires with the same cross-sectional area. Wire A is twice as long as wire B. How do the resistivities and resistances of the two wires compare? CHECK ALL THAT APPLY Wire A and wire B have the same resistance. Wire A has twice the resistivity of wire B. Wire...
February 7, 2014 by Anonymous

physics
A 0.10 g plastic bead is charged by the addition of 1.0 x 1010 excess electrons. What electric field (strength and direction) will cause the bead to hang suspended in the air?
July 21, 2011 by Jessika

Physics
A small bead of mass m and charge q is free to move in a horizontal tube. The tube is placed in between two spheres with charges Q = − q. The spheres are separated by a distance 2a. What is the frequency of small oscillations around the equilibrium point of the bead? You...
September 3, 2013 by Petra Tanovic

physics
Two spherical conducting wires A and B are connected to the same potential difference. Wire A is three times as long as wire B, with a radius double that of wire B and resistivity doubles that of wire B. What is the power delivered to wire A to the power delivered to wire B?
November 13, 2013 by Anton

physics
a block of a mass starts from rest and slides down a surface which correspnds to a quarter of a circle. if the curved surface is smooth, what is the speed at the bottom?
April 22, 2013 by mojalefa

physics
Two spherical conducting wires A and B are connected to the same potential difference. Wire A is three times as long as wire B, with a radius double that of wire B and resistivity doubles that of wire B. What is the ratio power delivered to wire A to the power delivered to ...
November 14, 2013 by Anonymous

Electricity help needed please
Two spherical conducting wires A and B are connected to the same potential difference. Wire A is three times as long as wire B, with a radius double that of wire B and resistivity doubles that of wire B. What is the power delivered to wire A to the power delivered to wire B? ...
November 15, 2013 by Abdu

physics
Two flat slides of glass are seperated at one edge by a thin wire, as shown below. The top surface of the upper slide and the bottom surface of the lower slide have special coatings on them so that they reflect no light. The system is illuminated with light of wavelength 550 ...
March 29, 2010 by Jason

mathematics
there are two wooden square prisms with base edge 8cm and height 12cm.from one of this prism ajesh curved outthe largest square pyramid.but from the otherrajesh curved out the largest cone.find the volume of the solids they curved out.whose product has greater volume
October 6, 2012 by asha

Physics
A 4.6-kg block slides down an inclined plane that makes an angle of 26° with the horizontal. Starting from rest, the block slides a distance of 2.6 m in 4.9 s. Find the coefficient of kinetic friction between the block and plane.
October 12, 2011 by Kayla

Physics
A 4.3-kg block slides down an inclined plane that makes an angle of 26° with the horizontal. Starting from rest, the block slides a distance of 2.1 m in 5.1 s. Find the coefficient of kinetic friction between the block and plane.
October 12, 2011 by Jen

physics
A 5.4 kg block slides down an inclined plane that makes an angle of 38 with the horizontal. Starting from rest, the block slides a distance of 2.5 m in 5.3 s. The acceleration of gravity is 9.81 m/s2 . Find the coefficient of kinetic friction be- tween the block and plane.
March 14, 2011 by Sara

math
What is the Surface area of a glass bead that has the diameter of 11m? Express your answer to the nearest square mm. A glass bead would be a sphere. So the formula for that is--> SA = 4đr^2 = 4đ(5.5^2) = 380mm^2
September 30, 2010 by Emma

physics
Two spherical conducting wires A and B are connected to the same potential difference. Wire A is three times as long as wire B, with a radius double that of wire B and resistivity doubles that of wire B. What is the ratio power delivered to wire A to the power delivered to ...
November 13, 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 (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 hard...
Young's Modulus (Y) 20 X 1010 N/m2 Shear Modulus (S) 8.1 X 1010 N/m2 Bulk Modulus (B) 16 X 1010 N/m2 The table to the above represents various properties of steel. You have steel wire 4.9 meters in length that stretches 0.16 cm when subjected to a force of 400 N. What would ...
May 6, 2010 by richard

Physics
A 5.1 kg block slides down an inclined plane that makes an angle of 26 degrees with the horizontal. Starting from rest, the block slides a distance of 2.9 m in 4.6 s. The acceleration of gravity is 9.81 m/s2 . Find the coefficient of kinetic friction between the block and plane.
March 13, 2011 by Jackson

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
A bead slides without friction around a loop–the–loop (see figure below). The bead is released from rest at a height h = 3.60R. (a) What is its speed at point ? (Use the following as necessary: the acceleration due to gravity g, and R.) v = So I can't get this. I know the form...
March 11, 2013 by Anonymous

Physics
A bead slides without friction around a loop–the–loop (see figure below). The bead is released from rest at a height h = 3.60R. (a) What is its speed at point ? (Use the following as necessary: the acceleration due to gravity g, and R.) v = So I can't get this. I know the form...
March 11, 2013 by Anonymous

physics
A body slides down a curved track which is one quadrant of a circle of radius R. If it starts from rest at the top of the track and there is no friction, find the speed at the bottom of the track is R equals 5 m.
November 3, 2011 by pakilina

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 11, 2013 by ashok

Physics
A long straight horizontal segment of wire with 0.060 m traverses a west magnetic field with 2.0 T. If a south current with 4.0 A flows through the wire, which one of the following statements concerning the effect of the magnetic force on the wire is true. a) The wire will be ...
November 14, 2010 by Katie

MATH
A wire is stretched from the ground to the top of an antenna tower. The wire is 20 feet long. The height of the tower is 4 feet greater than the distance from the tower's base to the end of the wire.Find the height of the tower. 20^2=H^2 + (H-4)^2 solve for h 400=2H^2 - 8H +16...
September 27, 2008 by jennifer

ap physics
Starting from rest, a 10.2 kg block slides 2.90 m down a frictionless ramp (inclined at 30.0° from the floor) to the bottom. The block then slides an additional 4.80 m along the floor before coming to a stop. Determine the coefficient of kinetic friction between block and floor.
November 10, 2010 by clueless

physics
A steel (Young's modulus 2.0 x 1011 N/m2) wire is strung between two supports attached to a ceiling. Initially, there is no tension in the wire when it is horizontal. A 88-N picture is then hung from the center of the wire, as the drawing illustrates, so the ends of the wire ...
April 14, 2012 by robert

Physics
A steel (Young's modulus 2.0 x 1011 N/m2) wire is strung between two supports attached to a ceiling. Initially, there is no tension in the wire when it is horizontal. A 98-N picture is then hung from the center of the wire, as the drawing illustrates, so the ends of the wire ...
November 23, 2013 by Samantha

physics
The alarm at a fire station rings and a 87-kg fireman, starting from rest, slides down a pole to the floor below (a distance of 3.9 m). Just before landing, his speed is 1.3 m/s. What is the magnitude of the kinetic frictional force exerted on the fireman as he slides down the...
February 19, 2011 by Julius

physics
The alarm at a fire station rings and a 87-kg fireman, starting from rest, slides down a pole to the floor below (a distance of 3.9 m). Just before landing, his speed is 1.3 m/s. What is the magnitude of the kinetic frictional force exerted on the fireman as he slides down the...
February 19, 2011 by Julius

physics
The alarm at a fire station rings and a 83-kg fireman, starting from rest, slides down a pole to the floor below (a distance of 3.9 m). Just before landing, his speed is 1.3 m/s. What is the magnitude of the kinetic frictional force exerted on the fireman as he slides down the...
October 17, 2013 by collin.saccoman

Physics
Two current carrying wires cross at right angles as indicated in the figure. If the wires are not restrained, what statement best describes the motion of the wires? Hint: To help you visualize the situation, draw first the magnetic field that Wire 1 makes at the points shown ...
March 15, 2010 by mm.

Physics
Two current carrying wires cross at right angles (like a + sign). Wire 1 has current directed horizontally to the left. Wire 2 has current directed vertically up. If the wires are not restrained, what statement best describes the motion of the wires? A) Wire 1 moves out of the...
March 13, 2010 by Jane

physics
Assume the Earth's magnetic field is 51.3 µT northward at 60.0° below the horizontal in a particular city. A tube in a neon sign stretches between two diagonally opposite corners of a shop window—which lies in a north–south vertical plane—and carries current 35.7 mA. The ...
February 20, 2013 by Matteo

physics
A piano tuner stretches a steel piano wire with a tension of 765 N. The steel wire has a length of 0.400 m and a mass of 3.00 g. What is the frequency f_1 of the string's fundamental mode of vibration? What is the number of the highest harmonic that could be heard by a person ...
April 19, 2010 by Anonymous

physics
A small glass bead has been charged to +19 nC. A metal ball bearing 1.0 cm above the bead feels a 0.030 N downward electric force. What is the charge on the ball bearing?
March 23, 2010 by deb

PHYSICS-repost
A small glass bead has been charged to +19 nC. A metal ball bearing 1.0 cm above the bead feels a 0.030 N downward electric force. What is the charge on the ball bearing?
March 23, 2010 by deb

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