Question1
A wire shaped in the shape of an equilateral triangle of side d = 8 cm, carries current i = 0.25 A. This loop is placed in a region of space that contains a constant magnetic field of magnitude B = 1.3 T, aligned with the negative z-axis. What is WI to II, the work you would have to do to rotate the coil 180° from Position I to Position II?
Question2
Two soccer players start from rest, 45 m apart. They run straight toward each other, both players accelerating. The first player has an acceleration whose magnitude is 0.50 m/s2. The second player's acceleration has a magnitude of 0.40 m/s2.
How much time passes by they collide?