Which do you think will penetrate farther into a block of lead, x-rays, or gamma rays

During a phase change the temperature of a substance

Michael wanted to measure the temperature of an object. Which SI unit should he use? a. milliliter b. kilogram c. Fahrenheit d. Kelvin

External respiration takes place in the ... ? A) Bronchi B) Trachea C) Alveoli D) Diaphragm

A coin of mass. 005 kg dropped from a height of 3 m. How much potential energy does it have right before it hits the ground? Assume there is no air resistance. Acceleration due to gravity is g=9.8 m/s2

Is a sonic boom heard by the passengers traveling in a supersonic aircraft? Why or why not? a.) they do not experience any shift in frequency because they are traveling at the same speed as that of the sound source. b.

Find the y-component of this vector:73.3,12.0m. Remember, angles are measured from the + x axis.

A smaller unit of volume than a milliliter would be a microliter. A microliter is one-millionth of a liter. Select one: a. True b. False

What material are oil pipelines made from?

What is the speed of a car going v=1.000mphv=1.000mph in SI units? Notice that you will need to change from miles to meters and from hours to seconds. You can do each conversion separately.

What made it possible to construct skyscrapers in the 1800s