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Question: If the current carried by a conductor is doubled, what happens to the; (a) charge carrier density, (b) current density, (c) electron drift velocity, (d) average time between collisions, (e) conductiv- ity, (f) electrical potential difference across the conductor, (g) electrical energy per time convert- ed to thermal energy? Explain.
A ball is released from rest at t=0.3s on an inclined segement of track. The ball rolls down the incline onto a 2m section of level track and then continues down a second incline, find the speed of the ball on the level segment of track
Compare and contrast kinematics versus dynamics in mechanical systems.
The star Sirius is a distance of 8 light years from the earth. If Sirius suddenly stopped shining, how much longer would it be seen on earth
The water in the plumbing in a house is at a gauge pressure of 160000 Pascal. Find what force does this cause on the top of the tank inside a water heater
A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.25 s. At the end of this time, Find the total displacement of the boat
An 8-kg box is pushed 10 m across a level floor by a constant 15.7-N applied force. Assuming the Box starts from rest, what is the final velocity of the box at the 10m point
An airplane has an effective wing surfacearea of 10 m2 that is generating the lift force. What is the weight of the plane in Newtons
A ball has a diameter of 3.80 cm andaverage density of 0.0839g/cm3. What force is required to hold it completely submerged under water
A 3.00-kHz tone is being produced by a speaker with a diameter of 0.160 m. find the change in the diffraction angle
The magnitude of each force is 271 N, the force on the right is applied at an angle 20? and the mass of the block is 13 kg. what is the magnitude of the resulting acceleration
Find the net downward force on the tank's flat bottom, of area 2.25m2 , exerted by the water and air inside the tank and the air outside the tank
Two carts are held together by a mass less spring and are travelingtogether to the right on a frictionless air track at 1.35 m/s. How much energy was stored in the spring before the separation
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