Which substances are commonly found far from the Sun? Select all that apply.

a. iron

b. water

c. methane

d. ammonia E. silicate rocks F. carbon dioxide

What electrons live in 2,8,8 ...

A toy car has an initial acceleration of 2 m/s" across a horizontal surface after it is released from rest.

Which type of make sure looks like it is one substance A. A heterogeneous one B. A suspension C. A colloid D. A homogeneous one

Describe how the Fermi level changes with donor level, temperature and contact with p and n type semiconductors

Why is it important to understand your strength and weakness

How would you explain photosynthesis to a new student in class

If the abosolute of a gas is 600 k, the temperature in degrees Celsius is

How does an electromagnetic wave propagate itself? a. A changing magnetic field induces an electric field perpendicular to the magnetic field. b. A changing electric field induces a magnetic field perpendicular to the electric field. c.

Which of the following is an example of convection? A. hot air rising and cooler air falling B. a hot object transferring heat to a cooler one C. a hot oven warming the air around it D. the rays of the Sun warming the earth

A 50,000 kg locomotive is traveling at 10 m/s when its engine and brakes both fail. How far will the locomotive roll before it comes to a stop? Assume the track is level.