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A coil of Nichrome wire is 31.0 m long. The wire has a diameter of 0.360 mm and is at 20.0°C. (a) If it carries a current of 0.580 A, what is the magnitude of the electric field in the wire?
(b) If it carries a current of 0.580 A, what is the power delivered to it?
(c) If the temperature is increased to 360°C and the potential difference across the wire remains constant, what is the power delivered?
A model rocket is launched straight upward with an initial speed of 47.8m/s. It accelerates with a constant upward acceleration of 2.07m/s2 until its engines stop at an altitude of 157 m. What is the maximum height reached by rocket.
Two forces act on a 24-kg object. One force has magnitude 65 N directed 59° clockwise from the positive x-axis, What is the magnitude of this object's acceleration
The spin cycles of a washing machine have two angular speeds, 408rev/min and 648rev/min. Find the laundry's maximum radial acceleration
an aa battery is connected to a parallel-plate capacitor having 4.00cm diameter plates spaced 5mm apart. how much
Assume you are a medieval knight attacking a castle with a canon. The ball leaves the cannon with a speed of 40.9 m/s. What is the time of flight of the cannon ball
If an Acura Integra accelerates from 0 to 60 mph in 4 seconds, which one has the larger acceleration
A guitar string with a mass of 12 g is 80 cm long and attached to the guitar at two points separated by 65 cm. What is the frequency of its fundamental note when it is placed under a tension of 170 N? Answer A) 74 Hz B) 82 Hz C) 93 Hz D) 150 Hz E)..
a typical cell membrane is 8.0 nm thick and has an electrical resistivity of 1.3 107 ? if the potential difference
A radar station locates a sinking ship at range 15.6 km and bearing 136° clockwise from north. From the same station, a rescue plane is at horizontal range 19.6 km, 160° clockwise from north, with elevation 2.10 km. (a) Write the displacement vector ..
A 50 newton horizontal force pushes a 10 kg mass sitting on a horizontal surface. What is the acceleration of the mass
Oppositely charged parallel plates are separated by 5.30 mm. A potential difference of 600 V exists between the plates. What is the magnitude of the electric field between the plates
The input coil of a transformer has 10 winding current to flow from 12 volt battery. how long will it take for circuit to rach its final current
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