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When operated on a household 110.0-V line, typical hair dryers draw about 1550 W of power. We can model the current as a long straight wire in the handle. During use, the current is about 2.25 cm from the user's hand.
What is the current in the dryer?
What is the resistance of the dryer?
What magnetic field does the dryer produce at the user's hand?
A 230-N child is in a swing that is attached to ropes 1.90m long. Find out the gravitational potential energy associated with child relative to her lowest position at the following times.
A) Find v so that the rod swings up and is horizontal at the max height of the bob. B) Find the minimum v so that the rod will make a complete circle C) Find v so that the tension in the rod is zero at the top of its swing.
A 65-kg person wants to get to the top of a 2 m high ledge by swinging up to the top by running and grabbing a suspended rope suspended 5m above the ground by a tree.
Falls resulting in hip fractures are a major cause of injury and even death to the elderly. Typically, hip's speed at impact is about 2. If this can be reduced to 1.30 or less, hip will usually not fracture. One way to do this is by wearing elasti..
A 75 kg person escapes from a burning building by jumping from a window 25-m above a catching net. Assuming that air resistance exerts a 95-N force on the person all through the fall, determine out the person's velocity just before hitting the net..
Write down an equation for the radial component
Illustrate what are the distinguishing characteristics of the EMTN and explain why it is such a popular form of financing for MNEs?
An elevator and its load have a combined mass of 1450 kg, Find the tension in the supporting cable when the elevator, originally moving downward at 11 m/s
What is the maximum torque on a 125 turn square loop of wire 18.0 cm on a side that carries a 46.0 A current in a 1.60 T field
An electron is accelerated horizontally from rest in a television picture tube by a potential difference of 5500V. It then passes between two horizontal plates 6.5cm long and 1.3 cm apart that have a potential difference of 250V. At what angle wil..
A spotlight is coated so that it won't transmit magenta light from its white-hot filament. What colour emerges from coated spotlight.
find the components of the hiker's total displacement for the trip. Find the magnitude and direction of the displacement from base camp.
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