An electrically neutral metal rod of length 2.3 m is oriented along the z-axis. it moves with a velocity of 1.3 m/s at an angle of 30 deg with respect to the +x-axis through a uniform magnetic field b < 2.4, 0, o> t. calculate the potential difference from one end of the bar to the other after it have been moving for a long time. lf a voltmeter is connected from the -z side to the +z side, will the reading be positive or negative?

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

A30 kg weight lies on top of a massless piston of area a = 0.01 m2 the exterior air is at a (constant) p =1 atm and t = 27 c. the interior gas is 0.4 moles of (ideal) n2 and it has initial temperature 27.00 degrees c. 1. what is the initial pressure in the interior? a. 29.4 kpa b. 130.7 kpa c. 101.3 kpa the next three questions concern what happens when an amount of heat q is slowly added to the interior, raising the piston by 1 mm and raising the interior temperature to 27.40 c

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?