Nerve impulses travel at different speeds, depending on the type of fiber through which they move. The impulses for touch travel at 76.2 {\rm m/s}, while those registering pain move at 0.610 {\rm m/s}. Assume that person's brain is 1.81 m from his toe and that the impulses travel directly from toe to brain.1. If a person stubs his toe, find the time for the impulse for touch to reach his brain. t=___s2. If a person stubs his toe, find the time for the impulse for pain to reach his brain. t=___s3. Find the time delay between the pain and touch impulses.{\Delta t} =s

Order the sequence of ideas that lead to marie curies discovery of radioactive elements number the events in chronological order starting with the oldest

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called

Which of the following is a true statement about the acceleration ~a of the pendulum bob ~a is equal to the acceleration due to gravity. ~a is perpendicular to the bob’s trajectory. ~a is equal to the instantaneous rate of change in velocity. ~a is tangent to the bob’s trajectory.