In the formation of a river delta, why is it that coarser material is deposited first, followed by medium and finer material farther out?
What will be an ideal response?
Answer: The deposition of sediment in a delta environment is due to a stream's inability to transport sediment indefinitely. The settling of grain particles is directly related to inertia. Larger grains have more mass and more inertia; thus larger grains are the first to settle out. Smaller grains have less mass and less inertia and are the last to settle out.
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An accepted value of KIc is obtained from a fracture test where the fracture surface is _________ to the tensile loading direction.
Fill in the blank(s) with the appropriate word(s).
A charged particle moving in the magnetic field created by an external magnet experiences a force that is perpendicular to both the particle’s velocity 
and the direction of the magnetic field 
in the sense indicated by your right thumb if your right index finger points in the direction of and your adjacent finger points in the
direction of . (The magnetic field , in turn, points away from the external magnet’s north pole and toward its south pole.) A certain radioactive substance emits quantons that, when placed in a magnetic field directed away from the observer, bend to the right side of their direction of travel. These nuclei are decaying via which kind of process?
A. An alpha decay process
B. A beta decay process
C. A gamma decay process
D. There is not enough information to specify.
The air inside a bicycle tire pump has 60 joules of work done on it as 20 joules of heat is conducted away from it. What is the change in internal energy of the air?
Current is the opposition to the flow of charge
a. True b. False Indicate whether the statement is true or false