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When an electron is displaced in a semiconductor, the hole that's left behind is
A. incapable of carrying a charge.
B. considered an impurity in the crystal.
C. attracted to the anode of the voltage source.
D. attracted to the negative terminal of the voltage source.
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
A proton, with mass 1.67 x 10-27 kilogram and charge +1.6 x 10-19 C, is sent with velocity 7.1 x 104 meter per second in the +x direction, Obtain the magnitude and direction of the uniform magnetic field
What is the force on the bottom of a 36.0 cm tall cylindrical beaker with a diameter o 6.0 cm with water filled to its brim, answers in N.
Two electrons are located at two of the vertices of an equilateral triangle, one at each vertex. The length of one side of the triangle is 1.00 nm. What is the net electric field at the third vertex
A bar of length 2cm slides along metal rails at a speed of 1cm/s. The bar and rails are in a magnetic field of 2T, What is the induced emf in the bar and rails
the uss enterprise accelerates from rest at 100000 ms2 for a time of four seconds. how far did the ship travel in that
Paleontologists estimate that if a Tyrannosaurus rex were to trip and fall, it would have experienced a net force of approximately 261,200 N acting on its torso when it hit the ground. Calculate the magnitude of the torso upward acceleration as it ..
An arrow is shot vertically upward and then 1.84s later passes the top of a tree 40.9m high. How much longer will the arrow travel upward, and how high will it go
Determine how much energy is required to raise the temperature of 1000 gram of ice initially at 20oC to 120oC steam
an electron is accelerated from rest by a potential difference of 350 v. it then enters a uniform magnetic field of
A garden cart loaded with firewood is being pushed horizontally when it encounters a step h = 7.0 cm high, as shown in Fig. 12.20. The mass ofthe cart and its load is55 kg, and the cart is balanced so that its center of mass is directly overthe ax..
A remote-controlled car's wheel accelerates at 22.1rad/s2. if the wheel begins with an angular speed of 10rad/s, what is the wheel's angular speed after exactly eleven fullturns?
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