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Please help me solve this, I'm not even sure how to show my work on this: A book falls off a shelf and lands on the floor. Which is greater, the book's average speed throughout the fall or its instantaneous speed right before (an instant) it lands? You can provide a sample calculation to support your answer, though you can't just make up any numbers (they have to be consistent and reasonable).
Search for an academic journal (peer-reviewed) article on globalization [ e.g. global warming, international trade, human mobility(immigration), global security, global economic development, etc] and summarize it.
q1.a 8.0-m long wire with a mass of 10 g is under tension. a transverse wave for which frequency is 570 hz the
After solving a difficult physics problem, an excited student throws his book straight up. It leaves his hand at 3.9 m/s from 1.5 m above the ground.
Find the maximum velocity of an ejected electron if the copper surface is illuminated by radiation with a wavelength of 122nm, the longest wavelength line of the Lyman series (transitions to n=1) of hydrogen.
Ethanol has an index of refraction of 1.36 and Quartz has an index of refraction of 1.54. If light in Ethanol is incident on Quartz at an angle of 44.9 degrees with the normal, what is the angle of refraction?
An object is placed 12.0 centimeter in front of a convex mirror, the image being 6.60 centimeter behind the mirror. Evaluate how far in front of mirror is second object placed
three resistors are connected in series across a battery. the value of each resistance and its maximum power rating are
Ball A, with a mass of 0.11 kilogram and traveling at 12m/s, collides head on with ball B which has a mass of .32 kilogram and is initially at rest. Compute the final velocities of each ball if the collision is perfectly elastic
The nonconducting spherical shell is replaced with a thin metal spherical shell of diameter 8 cm and a charge of 1.00, What is the net electric field at 50 cm on the positive x axis
A long solenoid with 12.8 turns/cm and a radius of 8.91 cm carries a current of 21.9 mA. What is the magnitude of the magnetic field there
Soles of boots that are designed to protect workers from electric shock are rated to pass a maximum rms current of 1.3 mA when connected across an 1.7×10^4V AC source.
The current in a coil with a self-inductance of 1.5mH increasesfrom 0 to 2.0 A in a tenth of a second what is the induced emf in the coil
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