20pts! What are the thin fibers of the human nervous system called?

A. nerves

B. brain

C. spinal cord

D. eye

How much time does it take a skater to increase her speed uniformly, from 3.0 meters per second to 7.0 meters per second, over a distance of 10 meters? a. 1.0 S b. 4.0 s C 6.0 s d. 2.0 s

What can you conclude about these two reactions based on the chemical equations? Reaction A: 6CO2 (g) + 6H2O (l) + sunlight → C6H12O6 (aq) + 6O2 (g) Reaction B: 2H2 (g) + O2 (g) → 2H2O (g) + energy A. Reactions A and B are both exothermic. B.

All planetary orbits are: Spherical? Circular? Egg-shaped? Elliptical?

This tea kettle shows a change in the state of matter of water. Which part of the water cycle represents the same change in state?

A bug is on the rim of a 78 rev/min, 12 in. diameter record. The record moves from rest to its final angular speed in 2.91 s. Find the bug's centripetal acceleration 1.5 s after the bug starts from rest. (1 in = 2.54 cm). Answer in units of m/s 2.

A roller coaster is entering a vertical loop which has a radius of 25.0 m. If the coaster is traveling at 45.0 m/s as it enters the loop, how much is the centripetal force that you experience? (Assume your mass to be 75.

Which best describes tropical continental climate during the summer? A. clear, dry weather, B. cloudy, wet weather, C. cold, dry weather, D. hot, dry weather

At the beach, describe where or when you would see wave fronts. How are wave fronts useful to surfers?

How would the moon appear from earth if the moon did not rotate?

Block B has mass 4.00 kg and sits at rest on a horizontal, frictionless surface. Block A has mass 2.00 kg and sits at rest on top of block B. The coefficient of static friction between the two blocks is 0.400.