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In a 2D box colliding with the left wall, parallel to the x-axis. We assumed an elastic collision and found the change in momentum (dp)in the x-direction was dpx = 2mvx.
(a) If the particle was moving at an angle to the left wall, why does dpx = 2mvx anddpy = 0?
(b) After the particle collided with the left wall, it then collides with the top wall.What are dpx, and dpy after the collision with the top wall?
(c) Again, considering the momentum transferred to the left wall, if the particle ismoving in 3D why does dpx = 2mvx and dpy = dpz = 0?
A car alarm is emitting sound waves of frequency 520Hz. How fast must you be traveling if you detect a frequency of 490 Hz?Enter your speed as a positive number. Take the speed of sound to be 344
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the armature of a simple ac generator has 20 circular loops of wire each with a radius of 10 cm. it is rotated with a
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The magnetic field due to a currnt pulse in a single long, straight axon nerve fiber is 1.2X10^-10T at a distance 0.0013m from axon. What is the current in the axon
Sketch the rays reflected from the bottom surface of the glass and emerging back into the air through the upper surface of the glass. Explain your reasoning.
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