F a tornado destroys a deciduous forest, what kind of succession follows?

A) classic ecosystem

B) climax community

C) primary succession

D) secondary succession

A person hums into the top of a well (tube open at only one end) and finds that standing waves are established at frequencies of 40.6, 67.7, and 94.7 Hz. The frequency of 40.6 Hz is not necessarily the fundamental frequency.

What velocity must a 1340 kg car have in order to reach the momentum of a 2680 kg truck traveling at a velocity of 15 m/s to the west?

how many kilograms off mercury would fill a 5litre container if the density of mercury is 13.6grams per cm3

Why is the use of scientific names important in biology?

The downward acceleration of a falling body on Earth is 9.81m/s2. On the moon the same quantity is 1.62m/s2. An astronaut in a space suit has a mass of 145kg.

A 2.50 * 105 W motor is used for 26.4 s to pull a boat straight toward shore. How far does the boat move toward shore if a force of 4.20 * 104 N is applied by the motor?

Which type of wave experiences a change in speed when entering a new medium? a) only sound waves b) both sound and light waves c) only light waves d) neither sound or light waves

Three basic classes of collisions include all but which of the following?

How does the use of biomass energy to create electricity harm the environment

Which physical property of iron made it popular for use in weapons? 1. Magnetism 2. Luster 3. Malleability 4. Ductility