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A solenoid length 7.0 x10-2m and a cross-sectional are5.0 x 10-5 m2 contains 6000 turns per meter of length. Decide the emf induced in the solenoid when the current in the solenoid changes from 0 t0 1.5 A through the time interval from 0.0 to 0.20s. What is the energy stored in the solenoid?
The zygomatic bone in the upper part of the cheek can be fractured by a 900-N force lasting 6.0 ms or longer. By how much does it change the force on the face
Consider a generator with a 300 turn coil on its armature and a uniform magnetic field of 5.4 T. The diameter of the coil is 5.0 cm. how fast do we need to rotate the coil
A group of hikers hears an echo 2.80 s after shouting. How far away is the mountain that reflected the sound wave? (Assume the speed of sound is 346.4 m/s.)
A brick is initially 12.67 cm high and an aluminum can is initially 12.68 cm high. By how much must their temperatures be raised in order for the brick and the can to have exactly the same height?
A cubical block of wood, 10.0 cm on a side, floats at the interfacebetween oil and water with its lower surface 1.50 cm below theinterface (see the cross section view in the figure). The densityof the oil is 790 kg/m3. (a) What is the gauge pressure ..
calculate the electric field at one corner of a square 1.00 m on a side if the other three corners are occupied by 2.15
a 3.81-khz tone is being produced by a speaker with a diameter of 0.217 m. the air temperature changes from 0 to 29.8
A 55 kg student traveling in a car with a constant velocity has a kinetic energy of 1.1 104 J. What is the speedometer reading of the car in km/h
A 0.50-kg mass is attached to a spring of spring constant 20 N/m along a horizontal, frictionless surface. What is the total energy of the system
An interesting (but over simplified) model of an atom pictures anelectron "in orbit" around a proton. Suppose this electron ismoving in a circular orbit of radius 0.21 nm (2.1 x10-10) and the force that makes this circular motion possible is the el..
A uniform drawbridge must be held at a 35.0?angle above the horizontal to allow ships to pass underneath. what is the initial angular acceleration of the bridge
A rail gun accelerates a projectile from rest by using the magnetic force on a current-carrying wire. Calculate the final speed of the wire
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