The length of an axon is 10 mm, and its time constant is 4 msec. a voltage change at one end of the axon is 120 mv, which results in a change of about 10.35 mv at the opposite end after 4 msec. given this information, what is the length constant of the neuron? ( input answer in mm, rounded to the nearest whole number, without including the units.)
2) if the diameter of an axon is decreased, and the amount of ion channels stays the same causing membrane resistance to be largely unchanged, what would happen? (state all that apply.)
the length constant increases.
the length constant decreases.
the time constant increases.
the time constant decreases.

Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?

When a pair of 10-n forces act on a box of candy, the net force on the box is a 20 n. b about 14 n. c zero. d any of the above depending on the directions of forces.