At temperatures near absolute zero, the critical field bc for vanadium, a type-i superconductor, approaches 0.142 tesla. the normal phase of vanadium has a magnetic susceptibility close to zero. consider a long, thin, solid vanadium cylinder with its axis parallel to an external magnetic field b⃗ 0 in the +x direction. at points far from the ends of the cylinder, by symmetry, all the magnetic vectors are parallel to the x axis.

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

Could someone me find the answer to this problem.

Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i. e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i. e. include the distance traveled to the first encounter)