1) A wire that has a length of 0.25-m is carrying a current of 7.5-A at right angles to a uniform magnetic field. The force on the wire is 0.55-N.
What is the stregth of the Magnetic Field?

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above