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A hungry bear of mass 85.0 kg walks out onto a beam in an attempt to retrieve a basket of food hanging at the end of the beam. The beam is uniform, has a mass of 20.0 kg, is 8.00 m long, and pivoted at the wall. The basket weighs 10.0 kg. If the wire can withstand a maximum tension of 900 N, what is the maximum distance from the wall the bear can walk out onto the beam before the wire breaks? 2325 E4Q6.png

Find the equivalent resistance in

On the next 7 problems, SHOW ALL WORK. Correct answers, but with inappropriate work, will not receive full credit. If you do not show any work, you will receive NO CREDIT.   Please be sure to submit your work for these problems in “Test 3 Work” in the TEST REVIEW AND TEST MODULE by 8:00 am tomorrow, Thursday, April 17.

All the capacitances in the circuit pictured are in

A proton experiences a magnetic force as it moves through a 2 T magnetic field directed along the + x axis. If the velocity of the proton is in the –z direction, what is the direction of the magnetic force experienced by the proton?

Which is the best route to this final compound?   ©GMU@X@user.pk_string@X@ ©GMU@X@user.pk_string@X@ ©GMU@X@user.pk_string@X@  

During the nitration of benzene, what reagents are necessary for generating the nitronium ion?

Which reagents are needed? ©GMU@X@user.pk_string@X@ ©GMU@X@user.pk_string@X@  

Which of the following reactions is not an electrophilic aromatic substitution?

Which of the following group is an activating group and ortho/para director? ©GMU@X@user.pk_string@X@