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Nichrome wire of cross-sectional radius 0.782 mm is to be used in winding a heating coil. If the coil must carry a current of 8.00 A when a voltage of 3.00 102 V is applied across its ends, find the following.
(a) the required resistance of the coil
(b) the length of wire you must use to wind the coil
You throw a ball vertically upward so that it leaves the ground with velocity 6.05 m/s. (a) What is its velocity and direction when it reaches its maximum altitude? magnitude m/s
Collision of 2 trains and stopping distances, Two trains are driving towards each other .One at 144 km/h and the other at 72 km/h When they see each other they start to brake at 1 m/s2. There is 950m between them.
A car travelling at 120 strikes a tree. The front end of the car compresses and driver comes to rest after travelling 0.900.
A large wood block is being pushed across the floor with a force of 180-N to the right. The block has a mass of 145.00 kg. The frictional force is 45-N. What is the acceleration of the block.
Compute the net electric flux through the hull of the submarine. Is the number of electric field lines leaving the submarine greater than, equal to, or less than the number entering it?
A spherical steel ball bearing has a diameter of 2.54 cm at 22 degrees. what is the diameter as its termperature is raised at 88 degrees celcuis.
Find out how fast a GPS satellite is moving relative to someone on the ground and from that how much slower time runs where it is in orbit relative to someone on the ground.
The engineer has done a survey and found that almost no one complains if the force directed up the ramp is no more than 20 .Ignoring friction, illustrate at what maximum angle should the ramps be built, assuming a full 28 grocery cart?
A parallel plate capacitor is composed of two square plates, 13.5 cm on a side, separated by an air gap of 0.80 mm, Find the new energy stored in the capacitor
A 100kg crate is being pushed across a horizontal floor by a force P that makes an angle of 30 below the horizontal. The coefficient of kinetic friction is 0.20. What must be the magnitude of P, so that the net work completed by it and the kinetic..
An athlete performing a long jump leaves the ground at a 34.4? angle and lands 7.65m away, What was the takeoff speed
You are to program a robotic arm on the assembly line to move in a xy-plane. Its first displacement is; its second displacement is, of magnitude 6.51 and direction 62.7 measured in the sense from +x-axis toward -y-axis. The resultant of the two displ..
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