Question1
A piece of wire with mass per unit length 78 runs horizontally at right angles to a horizontal magnetic field. A 6.5 current in the wire results in its being suspended against gravity.What is the magnetic field strength?
Question2
A motorist travelling at 16 m/s encounters a deer in the road 50 m ahead.
If the greatest acceleration the vehicle's brakes are capable of is -6 m/s2, what is the highest reaction time of the motorist that will allow her or him to keep away from hitting the deer?
Response in units of s
If his or her reaction time is 1.90167 s, how fast will (s) he be travelling when (s) he reaches the deer?
Reply in units of m/s