An aluminum wire with a diameter of 0.095 mm has a uniform electric field of 0.215 V/m imposed along its entire length. The temperature of the wire is 55.0°C. Assume one free electron per atom. (a) Use the information in this Table of Resistivities and Temperature Coefficients to determine the resistivity (in n· m) of aluminum at this temperature. p = Ω. m (b) What is the current density (in MA/m2) in the wire? MA/m2 (c) What is the total current (in mA) in the wire? I = mA (d) What is the drift speed of the conduction electrons? Va = um/s (e) What potential difference must exist between the ends of a 1.50 m length of the wire to produce the stated electric field? AV = 0.322

Q: A 300 lb car travelling with a speed of 30 mph, strikes an obstruction and is brought to rest in…

A: Given:Car weight 300 lbCar speed is 30 mphCar came to rest in 0.10 secTo Find:Average force on car ?

Q: You pull a 65kg box up a frictionless ramp at an angle of 15o with a rope that is parallel to the…

A: the equilibrium condition along the ramp is

Q: ia moves a 400-gram box by applying a force of 2.5 N. What is the coefficient of friction?

A: The force which just moves the box is equal to the frictional force. The fore makes the box move…

Q: (b) What is the mass (in kg) of the child and basket if a scale reading of 100 N is observed? kg (c)…

A:

Q: what force is needed to give a 8800.0kg truck an acceleration of 8.5 m/s2 over a level road?

A: Given,Mass of the truck, m=8800kgAcceleration of the truck, a=8.5m/s2

Q: A box is acted on by two forces. A 39 N Force pushes due east, while in 8.9 N Force pushes due west.…

A:

Q: An astronaut applies a force of 14,000 N to an asteroid, and it accelerates at 4.00 m/s2 . What is…

A: according to Newtons second law, F=ma

Q: A force of 1060 N is needed to bring a car moving at 20.1 m/s to a halt in 18.7 s. What is the…

A: force = 1060 N u = 20.1 m/st = 18.7 s

Q: A 1000 kg car is moving at 30. m/s and comes to a rest after 6.0 seconds. What is the force on the…

A: Given Mass of car = m = 1000 kg Initial velocity of car = u = 30 m/s Final velocity of car = v = 0…

Q: An object has a mass of 10.0 kg. What is the weight of the object

A: Given: Mass of object, m=10.0 kg To determine weight of the object.

Q: A force of 2.50 N is exerted on a 6.90 g rifle bullet. what is the bullet's acceleration?

A:

Q: What net force is required to make a 3.0 kg object continue traveling at a constant speed of 2.0…

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Q: Joe uses a force of 250N to push a box with a mass of 95 kg up a 8 degree incline. If coefficient of…

A:

Q: Which of the following is an appropriate unit for force? Note: there may be more than one correct…

A: We know that force can be written as  Force= Mass×acceleration We know unit of mass is Kg and that…

Q: An object with a mass of 4kg lies on a rough plane inclined at 20 degrees to horizontal. A force of…

A: mass =4 kg  angle = 20oF = 35 N a = 2.5 m/s2

Q: 500 Ib F=? app -> 1 ft 5 t In the above figure Fapp O 500 lb O 225 lb 100 lb O 350 lb

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Q: How large a net force is required to accelerate a 1,703-kg SUV from rest to a speed of 12.9 m/s in a…

A: Net Force required....Fnet= 624.149 Newtons

Q: A ball is dropped from the top of a building. The gravitational force is 10 N down, and the force of…

A:

Q: what force acts on a 1,150kg car travelling at a velocity of 23.0m/s when the brakes are applied,…

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Q: The box has a mass of 100kg. What will be its acceleration?

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Q: How much force is needed to accelerate a 10.0kg sled along a frictionless surface at 1.5 m/s2?

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Q: The acceleration of the car is 2.5 m/s^2.the mass of the car is 6.8 kg what is the force act on the…

A: The mass of the car is  The acceleration of the car is Find:What is the force acting on the car?

Q: A car of mass 1371 kg accelerates from rest to 16.9 m/s in 5.17 s. How much force was required to do…

A: Given:- m=1371 Kg t= 5.17 s u= initial velocity= 0 m/s v= final velocity= 16.9 m/s Lets find the…

Q: What amount of thrust is necessary to launch a rocket with a of 2, 347kg with an acceleration of 242…

A: Given Mass of rocket is m = 2, 347 kg Acceleration is a= 242  m/s^2

Q: Fnet a = bir=1600 N 600 N 100 kg a Fgrav=1000 N a = 6.0 m/s (up)

A:

Q: Marcel pushes a 5kg box to the right with a force of 105 N and his friend Sharon pushes 60 N to the…

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Q: A net force of 20 N is applied to a cart to cause it to change its velocity from 1.8 m/sec to 12…

A:

Q: A grocery bag can withstand 65 N.of force before it rips apart. How many kilograms of apples can it…

A: Strength of the bag, F = 65 N Acceleration due to gravity, g = 9.8 m/s2   Let the mass of the apples…

Q: 6. a) b) Prove an object of 1lbm has a weight of 11bf on Earth What is the weight (lbf) of the same…

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Q: Suppose the glider and the hanger had equal masses MG = mh . In this situation, do you expect the…

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Q: A force of 3.3 N is exerted on a 7.0 g rifle bullet.  What is the bullet's acceleration?

A: Using Newton's second law, F=maa=Fm

Q: A truck pulls a trailer with a frictional force of 870 N and a coefficient of friction of 0.23. What…

A: Finding the normal force of the trailer that is being pulled by an 870 N frictional force with a…

Q: A force of 1.3N acts on an object and produces an acceleration of 5.3 m/s2. What is the mass of the…

A: As we know that Force (F) =Mass (m). Acceleration (a) -----(1) Hence Mass (m)=Force (F)/…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!