The X-15 rocket-powered plane holds the record for the fastest speed ever attained by a manned aircraft at 2020 m/s. At this speed, by how much is the 15.5 m-long aircraft length contracted? Hint: use binomial approximation

Adiver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.2 kg·m2. he then pulls is arms and legs into a tuck position and his angular velocity increases to 12 rad/s. the net external torque acting on the diver is zero. what is his moment of inertia in the tuck position?

Amodel rocket with a mass of 0.212 kg is launched into the air with an initial speed of 84 m/s. how much kinetic energy will the rocket have at a height of 214 m? assume there is no wind resistance. 634 j 303 j

Decreased sensitivity to an unchanging stimulus is known as