1) a rock thrown horizontally from the top of a
water tower lands 20.0 m from the base of the
tower. if the rock was initially thrown at a velocity
of 10.0 m/s,
a) how high is the water tower?
b)what is the final velocity of the rock?

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.