A student thrusts a 0,20T magnet with a cross sectional area of 2.0 cm^2 into a coil of 400 turns in 0,50s. The coil has a resistance of 30 ohms and it is connected in series with a moving coil
31,299 results
physics
A net charge of 47 mC passes through the crosssectional area of a wire in 19.0 s. (a) What is the current in the wire? 1 A (b) How many electrons pass the crosssectional area in 1.0 min? 2 . electrons I got 9.3e+22 for B but its wrong

Physics
A liquid (density = 1.65 g/cm^3) flows through two horizontal sections of tubing. In the first section the crosssectional area is 10.0 cm^2, the flow speed is 275 cm/s, and the pressure is 1.20 x 10^5 Pa. This tubing then rises 50 cm to the second

Fluid Machineries
Water is flowing in a pipe with a circular crosssection area, and at all points the water completely fills the pipe. At point 1, the crosssection area of the pipe is 0.080m2 and the fluid velocity is 4.50 m/s. (a) What is the fluid speed at a point in

physics
The intake in the figure has crosssectional area of 0.75 m2 and water flow at 0.41 m/s. At the outlet, distance D = 180 m below the intake, the crosssectional area is smaller than at the intake and the water flows out at 9.6 m/s. What is the pressure

Physics
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose crosssectional area A^2 = 0.0700 m2. The gas has a density of ρ = 1.80 kg/m3. The

Hydraulic Physics
In a hydraulic system a 20.0N force is applied to the small piston with cross sectional area 25.0 cm2. What weight can be lifted by the large piston with cross sectional area 50.0 cm2? Would I need to divide both pistons areas then mutiply the force? and

Physics
A hydraulic lift in a garage has two pistons: a small one of crosssectional area 3.70cm2 and a large one of crosssectional area 210cm2 . Part A If this lift is designed to raise a 3100kg car, what minimum force must be applied to the small piston? Part

Physics
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose crosssectional area A2 = 0.0600 m2. The gas has a density of ñ = 1.70 kg/m3. The

physics
How much charge passes through a crosssectional area of a copper wire in 0.8 s if I = 3.5 A? 1 C

Calculus
A gutter with trapezoidal crosssection is to be made from a long sheet of stainless steel that is 30 cm wide by turning up onefourth of the width on each side. What width across the top will give the maximum cross sectional area?

physics
1. A closed magnetic circuit of cast steel contains a 6cm long path of cross sectional area 1cm square and a 2cm part of cross sectional area of 0.5cm square. A coil of 200 turns is wound around the 6cm length of the circuit and a current of 0.4ampere

Physics
Two wires have the same length and the same resistance but are made up of different materials. The resistivities of these materials are 3.97 Ù and 1.97 Ù. Obtain the ratio of the smaller crosssectional area to the greater crosssectional area.

phys
Water flows steadily from an open tank into a pipe as shown in the figure. The elevation of the top of the tank is 12.3 m, and the elevation at the pipe is 3.80 m. The initial crosssectional area of the pipe (at point 2) is 5.60×10−2 m^2; and at where

CrossSectional Area
The crosssectional area of a beam cut from a log with radius 1 foot is given by the function A(x) = 4x(sqrt{1  x^2}), where x represents the length of half the base of the beam. Determine the crosssectional area of the beam if the length of half the

Physical Education
Suppose that blood flows through the aorta with a speed of 0.35 m/s. The crosssectional area of the aorta is 2.0x104 m2. (a) Find the volume flow rate of the blood (b) The aorta branches into tens of thousands of capillaries whose total crosssectional

Physics HELP
1. A rectangular coil 0.065 m by 0.080 m is positioned so that its crosssectional area is perpendicular to the direction of a magnetic field. The coil has 66 turns and a total resistance of 7.6 Ω and the field decreases at a rate of 2.5 T/s. What is the

physics
Water flows steadily from an open tank into a pipe. The elevation of the top of the tank is 10.2 m, and the elevation at the pipe is 3.90 m. The initial crosssectional area of the pipe is 6.40×10^−2 m; and at where the water is discharged from the

PHYSICS!!!
A liquid (ñ = 1.65 g/cm3) flows through a horizontal pipe of varying cross section as in the figure below. In the first section, the crosssectional area is 10.0 cm2, the flow speed is 288 cm/s, and the pressure is 1.20 105 Pa. In the second section, the

PHYSICS
Water flows with a speed of 2.5 m/s through a section of hose with a crosssectional area of 0.0084 m^2. Further along the hose the crosssectional area changes, and the water speed is reduced to 1.1 m/s. Calculate the new crosssectional area.

PHYSICS !!!
The diffusion rate for a solute is 4.0 1011 kg/s in a solventfilled channel that has a crosssectional area of 0.50 cm2 and a length of 0.220 cm. What would be the diffusion rate m/t in a channel with a crosssectional area of 0.30 cm2 and a length of

Physics
1. A rectangular coil 0.065 m by 0.080 m is positioned so that its crosssectional area is perpendicular to the direction of a magnetic field. The coil has 66 turns and a total resistance of 7.6 Ω and the field decreases at a rate of 2.5 T/s. What is the

physics
A net charge of 47 mC passes through the crosssectional area of a wire in 19.0 s. (a) What is the current in the wire? 1 A (b) How many electrons pass the crosssectional area in 1.0 min? 2 electrons

Physics
Water enters a pipe with a cross sectional area of 3.0 cm^2 with a velocity of 3.0 m/s. The water encounters a constriction where its velocity is 15 m/s. What is the cross sectional area of the constricted portion of the pipe?

physics
(a) Calculate the mass flow rate (in grams per second) of blood (ρ = 1.0 g/cm3) in an aorta with a crosssectional area of 2.0 cm2 if the flow speed is 33 cm/s. Answer is in g/s (b) Assume that the aorta branches to form a large number of capillaries with

another physics question
A liquid ( = 1.65 g/cm3) flows through two horizontal sections of tubing joined end to end. In the first section the crosssectional area is 10.0 cm2, the flow speed is 275 cm/s, and the pressure is 1.20 105 Pa. In the second section the crosssectional

physical
Water flow along horizanta pipe at cross sectional area 48cm which has a constriction at cross sectional area 12cm at one place if the speed at the water at the constriction point is 4m/s calculate the speep at the wide section

physics
(a) Calculate the mass flow rate (in grams per second) of blood (ρ = 1.0 g/cm3) in an aorta with a crosssectional area of 2.0 cm2 if the flow speed is 35 cm/s. g/s (b) Assume that the aorta branches to form a large number of capillaries with a combined

Material mechanics
following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length Load (kN) Elongation(mm) 5 0.005 10 0.015 30 o.048 50 0.084 60 0.102 64.5 0.109 67 0.119 68 0.137 69 0.160 70 0.229 72 0.300 76 0.424 84

physics
A student wishes to measure the resistivity of glass. A teacher suggests that its resistivity is of the order of 10^6 Ω m which is very large. Resistivity ρ is defined by the equation: ρ = RA / l where R is resistance, A is crosssectional area and l is

Physics
Blood flows in an aorta of radius 4.62mm at 35.0cm/s. Calculate the volume flow rate. Although the crosssectional area of a capillary is much smaller than that of the aorta, there are many capillaries, so their total crosssectional area is much larger.

physics
A net charge of 47 mC passes through the crosssectional area of a wire in 19.0 s. (a) What is the current in the wire? 1 A (b) How many electrons pass the crosssectional area in 1.0 min? 2 electrons

physics
Two conductors are made of the same material and have the same length. They each have circular cross sectional areas. The ratio of their radii is 2:1. they carry the same current. What is the ratio of the electrical potential across their lengths? i know

Precal
The velocity v of a fluid flowing in a conduit is inversely proportional to the cross sectional area of the conduit.( Assume that the volume of the flow per unit of time is held constant .) Determine the change in the velocity of water flowing from a hose

AP PHYSICS HELP
One piston of a hydraulic lift holds 1.40*10^3 kg. The other holds an ice block (density= 917 kg/m^3) that is 0.076 m thick. Find the first piston's area. (Cross sectional area of the ice block = cross sectional area of the piston).

physics
a wire whose crosssectional area is 4mm^2 is stretched by 0.1 mm by a certain load.if a similar wire double the area of crosssection is under the same load,then then elongation would be ans: 1)0.05mm

Physics
A total charge of 16ìC passes through a crosssectional area of a nichrome wire in 4 s. How many electrons pass through the crosssectional area in 16 s? This has to do with Electric current and so i know that means 16ìC = 16 x 10^6 = 1.6x10^5.

maths help
Hi MY question is if a cylinder has a volume of 72cm cubed and a crosssectional area of 18cm squared. Work out the height of the cylinder Can someone show me how we do it by the steps The volume of a cylinder is given by volume = (crosssectional area) x

Physics
A wire of crosssectional area 5.00x10^6 m^2 has a resistance of 1.75 ohm. what is the resistance of a wire of the same material and length as the first wire, but with a crosssectional area of 8.75x10^6 m^2? I really want to understand what to do here,

Physics
An electromagnet has a steel core (κM≈ 2500) with an approximately circular cross sectional area of 7.0 cm2. The radius of the magnet is 12.0 cm; there is a small air gap of only 2.2 mm (see sketch). The current through the magnet's N= 120turn coil is

physics
A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters. What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

mechanics of materials
The following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length. Load(kN)/elongation mm) 5 /0.005 10 /0.015 30 /0.048 50 /0.084 60 /0.102 64.5 /0.109 67 /0.119 68 /0.137 69 /0.16 70 /0.229 72 /0.3 76

Physics repost
Posted by Mary on Saturday, October 6, 2007 at 5:13pm. Suppose you wish to make a solenoid whose selfinductance is 1.2 mH. The inductor is to have a crosssectional area of 1.2 103 m2 and a length of 0.048 m. How many turns of wire are needed? For

Mathematics
The length of a pencil lcm, varies directly with it's mass, mg, and inversely with it's area of crosssection, Acm². When m=4 and A=0•4, I=18. A. Find the formula connecting l, m and A B. Hence find the length of a pencil which has a mass of 3g and a

calculus
The crosssection of a drain is a trapezoid. The sides and the bottom of the trapezoid each have a length of 10 feet. Determine the angle θ such that the drain will have maximal crosssectional area.

Calculus
3. Find the volume of the solid with crosssectional area A(x) = 10 e^0.01x, 0 ≤ x ≤ 10.

physics
a fluid flows through a horizontal pipe of varying crosssection. Assuming the flow is streamline and applying the bernoulli equation, show that pressure in the pipe is greatest where crosssectional area is greatest.

physics
A student thrusts a 0,20T magnet with a cross sectional area of 2.0 cm^2 into a coil of 400 turns in 0,50s. The coil has a resistance of 30 ohms and it is connected in series with a moving coil meter having a resistantace of 170 ohms. What is the average

Math
A gutter is to be made of a strip of metal 22.8 inches wide, with the crosssection having the form of an isosceles trapezoid as shown below. Find the depth h that gives the maximum crosssectional area. What is the length of a ____ The depth, h , that

physics
A liquid (ρ = 1.65 g/cm^3) flows through two horizontal sections of tubing joined end to end. In the first section the crosssectional area is 10.0 cm^2, the flow speed is 245 cm/s, and the pressure is 1.20 105 Pa. In the second section the

physics
Blood flows in an aorta of radius 4.12mm at 35.0cm/s. Calculate the volume flow rate. Although the crosssectional area of a capillary is much smaller than that of the aorta, there are many capillaries, so their total crosssectional area is much larger.

phisecs
water is moving with a speed of 5 m/s through a pip with a crosssectional area of 4cm^2 . the water gradual descends 10 m as the pipe crosssectional area increases 8cm^2 . if the pressure at the upper level is 1.5*10^5 , the pressure at the lower level

Physics
An electromagnet has a steel core (κM≈ 2500) with an approximately circular cross sectional area of 8.0 cm2. The radius of the magnet is 7.0 cm; there is a small air gap of only 3.2 mm (see sketch). The current through the magnet's N= 100turn coil is

Physics
Water flows straight down from a downspout pipe. The crosssectional area of the downspout pile is 1.8 m2, and the speed of the water is 0.85 m/s as it leaves the downspout pile. Ignoring air resistance, find the crosssectional area of the water stream at

Physics
A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters. What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

mechanics
Sketch a stressstrain curve for which the stress is calculated using the actual crosssectional area rather than the original crosssectional area. Explain why this curve differtypical stressstrain curve

Physics
In a machine shop, a hydraulic lift is used to raise heavy equipment for repairs. The sys tem has a small piston with a crosssectional area of 0.063 m2 and a large piston with a crosssectional area of 0.172 m2. An engine weighing 2800 N rests on the

physics
water flows along a horizontal pipe of crosssectional area 48cm^2 which has a constriction of crosssectional area 12cm^2 at one place. If the speed of the water at the constriction is 4 m/s, calculate the speed in the wider section. The pressure in the

physics
A Venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at speed v2 through a horizontal section of pipe whose crosssectional area is A2 = 0.0769 m2. The gas has a density of ρ = 1.30 kg/m3. The

mechanical properties of materials
following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length Load (kN) /Elongation(mm) 5 /0.005 10 /0.015 30 /0.048 50 /0.084 60 /0.102 64.5 /0.109 67/ 0.119 68 /0.137 69/ 0.160 70 /0.229 72 /0.300 76

mechanical properties of materials
following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length Load (kN) Elongation(mm) 5 0.005 10 0.015 30 o.048 50 0.084 60 0.102 64.5 0.109 67 0.119 68 0.137 69 0.160 70 0.229 72 0.300 76 0.424 84

Chemstry
A 4.1089 g piece of aluminum wire with a circular cross section is 42.06 cm long and has density of 2.6989 g/cm3. What is the volume of the wire and the cross sectional area of the wire in cm2?

physics
How many electron can passes through a cross sectional area of a conductor per second

Physics
A)Blood flows in an aorta of radius 4.50mm at 27.5cm/s. Calculate the volume flow rate. B)Although the crosssectional area of a capillary is much smaller than that of the aorta, there are many capillaries, so their total crosssectional area is much

Fluid Mechanics
In a hydraulic system a 20.0N force is applied to the small piston with cross sectional area 25.0 cm2. What weight can be lifted by the large piston with cross sectional area 50.0 cm2?

physics  really dnt get this at all
A total charge of 25 mC passes through a crosssectional area of a nichrome wire in 10 s. How many electrons pass through the crosssectional area in 16 s? Choose one answer. a. 2.5 x 1017 electrons b. 2.5 x 1019 electrons c. 2.5 x 1016 electrons d. 2.5 x

physics A
A net charge of 47 mC passes through the crosssectional area of a wire in 19.0 s. (a) What is the current in the wire? 1 A (b) How many electrons pass the crosssectional area in 1.0 min? 2 . electrons

Physics
This problem compares some energy properties of two motor vehicles: For efficient car, use drag coefficient of .21 and a cross sectional area of 1.5m^2. For a light truck, use drag coefficient of .75 and a cross sectional area of 2.7m^2. Use 1.25 kg/m^3

PHYS101
For a system,the cylinder on the left,at L,has a mass of 600kg and a crosssectional area of 800centi meter squad.The piston on the right,at S,has crosssectional area 25centi meter squad abd negligible weight.If the apparatus is filled with

Physics, URGENT!!!
We consider tobacco virus diffusing along a 0.47 m long tube filled with water. The crosssectional area of the tube is unknown. The diffusion coefficient is found in Table 10.5, p. 319 in the textbook. A total amount of virus of 2.6 x 1016 kg is

Physics
Water is flowing through a pipe of varying crosssections and elevation. At point 1 of the pipe the crosssectional area is 0.54m2, the velocity is 4 m/s and the elevation is 2.5 m. At another point 2, the velocity is 2 m/s and the elevation is 1.25 m.

physics
1. Air flowing through a vent pipe of crosssectional area 21[m^2] is traveling 0.89[ms^1]. What is the flowrate? [18.7 m3s1] Answer with three significant figures (don't forget to round!) or N/A if there is not enough information to answer the question.

physics
A strong electromagnet produces a uniform field of 1.31 T over a crosssectional area of 0.195 m2. A coil having 245 turns with a total resistance of 16 is placed around the electro magnet, and the current in the electromagnet is turned off, reaching zero

Physics
A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters. What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

Physics. Please help!
A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters. What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

Physics
A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters. What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

Physics
A green sedan weighing 25,000 Newtons is put on a lift supported by a piston with a cross sectional area of 0.1 square meters. What is the minimum force that must be exerted by the air compressor that pushes down on the oil in the reservoir of the lift

physics
The diffusion rate for a solute is 4.0E11 kg/s in a solventfilled channel that has a crosssectional area of 0.50 cm^2 and a length of 0.220 cm. What would be the diffusion rate m/t in a channel with a crosssectional area of 0.30 cm^2 and a length of

physics
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose crosssectional area A2 = 0.0900 m2. The gas has a density of ñ = 1.50 kg/m3. The

College Physics
A wire P has resistance R. If the wire is stretched and its length is increased by 10%, what would be the percentage change in its resistance? (Assume the density of the wire remains constant) A)  10% B) 0 % C) 10% D) 20% My thoughts: Since resistance is

sciencecollege physics
2. A certain wire of length L, crosssectional area A is extended by an amount ‘e’ by a force F. Given that the young’s modulus of the material of the wire is E, Show that the; a. Energy stored in the wire is given by the expression (5) b. Energy per

physics
water flows along a horizontal pipe of crosssectional area 48cm^2 which has a constriction of crosssectional area 12cm^2 at one place. If the speed of the water at the constriction is 4 m/s, calculate the speed in the wider section. The pressure in the

Physics
What is the coeffecient of drag for the shape that has diameter 7.32[cm]? . Use three sig. figs. or N/A if there is not enough information. 2. You have a large wind tunnel of crosssectional area 0.95[m2]. You have a set of shapes that are all the same

mechanical properties of materials
following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length Load (kN) /Elongation(mm) 5 /0.005 10 /0.015 30 /0.048 50 /0.084 60 /0.102 64.5 /0.109 67/ 0.119 68 /0.137 69/ 0.160 70 /0.229 72 /0.300 76

physics
Muscles are attached to bones by means of tendons. The maximum force that a muscle can exert is directly proportional to its crosssectional area A at the widest point. We can express this relationship mathematically as F~max= σA, where σ (sigma) is a

Chemistry
One atmosphere of pressure will push a column of mercury to a height of 760 mm when the closs sectional area of the column is 1.00 cm.what would be the height of the column of mercury supported by the atmosphere if its cross sectional area were 0.500cm?

Physics
Consider a hydraulic lift whose crosssectional areas A1 and A2 are both circles. If a force F1=125N is required to lift a 1520kg car, what must be the ratio d2/d1 where d1 and d2 are the diameters of the crosssectional areas A1 and A2?

Physical Education
(a) Calculate the average blood velocity in the major arties given that the aorta has a radius of 1.0 cm, the blood velocity is 30 cm/s in the aorta, and the total crosssectional area of the major arties is 20 cm2 (b) What is the total flow rate? (c) On

physics
The coil in a generator has 300 windings and a crosssectional area of 0.0100 m2.

physics
A student thrusts a 0,20T magnet with a cross sectional area of 2.0 cm^2 into a coil of 400 turns in 0,50s. The coil has a resistance of 30 ohms and it is connected in series with a moving coil meter having a resistantace of 170 ohms. What is the average

physics
A piston of cross sectional area 100cm2 is used in hydraulic to exert a force of 10000000dyne find the cross area of another having weight 2000kg

mechanics of materials
The following data was obtained from a tensile test of steel. The test specimen was 15mm in diameter and 50 mm in length. Load(kN)/elongation mm) 5 /0.005 10 /0.015 30 /0.048 50 /0.084 60 /0.102 64.5 /0.109 67 /0.119 68 /0.137 69 /0.16 70 /0.229 72 /0.3 76

physics
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose crosssectional area A2 = 0.0600 m2. The gas has a density of ñ = 1.30 kg/m3. The

physics
There is a heat flow through a block of cross sectional area 21.5 cm2 and length 39 cm when the temperature difference of 18 degree Celsius is established across the block. Find the rate of heat flow through the block, assuming it is made of aluminium with

Physics
1. You have a large wind tunnel of crosssectional area 0.61[m2]. The wind speed is 4[ms1]. Assume air density is 1 [kgm3]. The Drag is 2.3[N]. What is the coeffecient of drag for the shape that has diameter 7.32[cm]? . Use three sig. figs. or N/A if

Physics please help!!
Water is flowing in a straight horizontal pipe of variable cross section. Where the crosssectional area of the pipe is 3.50·102 m2, the pressure is 5.30·105 Pa and the velocity is 0.310 m/s. In a constricted region where the area is 12.90·104 m2,

physiscs
A Venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at speed v2 through a horizontal section of pipe whose crosssectional area is A2 = 0.0779 m2. The gas has a density of ρ = 1.30 kg/m3. The

Physics
A venturi meter is a device for measuring the speed of a fluid within a pipe. The drawing shows a gas flowing at a speed v2 through a horizontal section of pipe whose crosssectional area A2 = 0.0700 m^2. The gas has a density of ρ = 1.80 kg/m^3. The

Science
Let a wire of length l and a cross sectional area A be expended through e by a force F

Physical Science
Can't figure this out, HELP!: What is the velocity (v) of a stream with a discharge (Q) of 8.53 x 10^3 m 3/s and a crosssectional area (A) of 5.27 x 10^3 m2?

physics
a fluid flows through a horizontal pipe of varying crosssection. Assuming the flow is streamline and applying the bernoulli equation, show that pressure in the pipe is greatest where crosssectional area is greatest.