Many particles, such as dust, are inhaled when people breathe. Which part of the respiratory system filters out the majority of these particles?

A. Nose

B. Alveoli

C. Trachea

D. Diaphragm

What is abiotic in science and what is biotic in science

By what means (or force) can the atoms in compounds be separated? a. Physical c. Proximate b. Experimental d. Chemical

A car slows down from 27.7 m/s to 10.9 m/s in 2.37s. What is the acceleration?

A catapult is tested by Roman legionnaires. They tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units) : Range = 0.

A trained sea lion slides from rest down a long ramp into a pool of water. If the ramp is inclined at an angle of 23° above the horizontal and the coefficient of kinetic friction between the sea lion and ramp is 0.26.

What are factors that would change the position of the wave lengths measured? (There are more than one answer.) a) size of the tube b) tuning fork frequency c) distance between the tuning fork and tube d) room temperature e) area of the tube

This particle is found in the nucleus and adds mass to the nucleus, but changing its number does not change what the element is. This particle is the A. proton. B. photon. C. neutron. D. electron.

Projectile motion is an example of what kind of motion

What can change scientific knowledge?

6. What is ductility?