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A shot put is released with a horizontal velocity of 12 m/s and stays in the air for 2.0 seconds At what angle with the horizontal was it released? What horizontal distance does it travel?
Two moles of an ideal gas undergo a reversible isothermal expansion from 3.25×10-2 to 4.59×10-2 at a temperature of 21.7. what change of entrophy delta s of the gas.
Seals may cool themselves by using thermal windows, patches on their bodies with much higher than average surface temperature. Suppose a seal has a 0.030m^2 thermal window.
a physics professor demonstrates the doppler effect by tying a 600hz sound generator to a 1.0-m-long rop, what are the highest and lowest frequencies heard by a student in the classs room
You shoot a cannon with initial velocity 62.3 m/s at an angle 67 degrees with respect to the level field on which the cannon sits. How far does this cannonball go on level ground
Two parallel conductors carrying current in the same direction attract each other. If they are permitted to move toward each other, the forces of attraction do work. Where does the energy come from? Does this contradict the assertion in that magne..
A proton has an initial speed of 3.3*10^5, What potential difference is required to reduce the initial speed of the proton by a factor of two
you and a friend are pulling on a box at 90 degree angles to each other. You are pulling with 80 pounds of force, Calculate the resultant force of pull and the angle of pull from the zero angle
If the electric field in an EM wave in free space has a peak magnitude of 7.5*10^-5 v/m, what is the peak magnitude of the magnetic field strength
The location of a particle (in m) is given by its x, y and z coordinates as function of the time, calculate the y-component of the average velocity between t = 3.00 s and t = 12.00 s
A bucket of mass 2.00 kg is whirled in a vertical circle of radius 1.10 m. At the lowest point of its motion the tension in the rope supporting the bucket is 25.0 N. Find the speed of the bucket
Consider an optical gain medium that has two levels at E 1=1.50 eV and E 2=3.50 eV. What is the stimulated emission wavelength
q1. a wheel 66.0 cm in diameter accelerates uniformly from 211 rpm to 395 rpm in 7.5 s. how far will a point on the
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