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A block in the shape of a rectangular solid has a cross-sectional area of 4.50 cm2 across its width, a front-to-rear length of 16.0 cm, and a resistance of 835 O. The block's material contains 3.15 x 1018 conduction electrons/m3. A potential difference of 30.8 V is maintained between its front and rear faces.
what is the mean free time between collisions of the free electrons in the block?
Whats the conductivity of the material?
A drunk driver in a 1600 kg car plows into a 1500 kg parked car with its brake set. Police measurements show that the two cars skid together a distance of 19 m before stopping. If the effective coefficient of friction is 0.78, how fast was the dru..
Use conservation of energy to determine the speed the child will have at the bottom of the arc when she is let go
A square loop of wire surrounds a solenoid. The side of the square is 0.1 m, while the radius of the solenoid is 0.025 m. What is the current flowing in the square loop
Determine the highest speed the stone can attain without breaking the string.
Calculate the y-component of the magnetic force. How fast must the candy bar travel to have the same joules in the form of kinetic energy.
How large does the radius R of the dish have to be to achieve an electric field vector amplitude of 0.1 rm mV/m at the receiver.
A large circus ride has a centripetal acceleration at 6.0 m/s2. If the circular ride has a radius of 11.0 m, what is its velocity at the edge
A diffraction grating with 395 lines/mm is 1.00 m in front of a screen. What is the wavelength of light whose first-order maxima will be 16.9 cm from the central maximum on the screen.
A 250-g ball collides with a wall. The ball's velocity and the force exerted on the ball by the wall. What is v_{{rm{f}}x}, ball's rebound velocity.
The voltage drop along a 30.0m segment of a power line made from copper wire (a very good conductor) is 1.2V, while carrying a current of 25.0 A. How large is the electric field along the wire
Find the energy released in the fusion reaction 2/1H+ 3/1H? 4/2He+n. The mass of 2/1H is 2.014102 u
A basketball of mass 270 g and radius 17 cm rolls with an initial speed of 2.5 m/s. What distance along the ramp will the ball travel before it comes to a stop
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