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Copper wire 0.4 mm in diameter is tightly wounded into a long solenoid and a 3.6A current passes through it. What is the magnetic field in the solenoid?
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A baseball is thrown vertically upward at a speed of 39.2 m/s. How much time elapsed before it reaches it highest points, and how high above the ground does it get?
Question: A particle moving on the x-axis experiences a force given by Fx = qx 2 , where q is a constant. How much work is done on the particle as it moves from x=0 to x=d? Express your answer in terms of some or all of ...
A 0.900 kg hammer is moving horizontally at 9.50 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. Calculate the duration of the impact. (s) What was the average force exerted on the nai ...
Question: People have proposed driving motors with the earth's magnetic field. This is possible in principle, but the small field means that unrealistically large currents are needed to produce noticeable torques. Suppos ...
Problem: Sophia exerts a steady 50-N horizontal force on a 8.6-kg box resting on a lab bench. The box slides against a horizontal friction force of 27 N Part A Find the box acceleration. Express your answer to two signi ...
Question: Part A: At what angle θ1 to the normal would the first dark ring be observed? Part B: Suppose that the light from the pinhole projects onto a screen 3 meters away. What is the radius of the first dark ring on ...
Question: The specific heat capacity of water is 4190 J/kg K, its heat of melting is 3.33 x 10^5 J/kg, and its heat of vaporization is 22.6 x 10^5 J/kg. For 1 kg of water, which of the following requires the most thermal ...
Question: R= 1.097*10^7 m^-1 A) What is the wavelength of the line corresponding to n=4 in the Balmer series? B) What is the wavelength of the line corresponding to n=5 in the Balmer series? C) What is the smallest wavel ...
Question: A slab of insulating material of uniform thickness d, lying between -d/2 to +d/2 along the x axis, extends infinitely in the y and z directions. The slab has a uniform charge density Ï. The electric field is z ...
Question: A semicircle of radius a is in the first and second quadrants, with the center of curvature at the origin. Positive charge +Q is distributed uniformly around the left half of the semicircle, and negative charge ...
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
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