The shifting of large blocks of Earth's surface is usually referred to today as what?
A. continental drift
B. plate tectonics
C. the Coriolis effect
D. the dynamo effect
Answer: B
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At a depth of about 1030. m in the sea the pressure has increased by 100. atmospheres (to about 107 N/m2). By how much has 1 m3 of water been compressed by this pressure? The bulk modulus of water is 2.3 × 109 N/m2
What will be an ideal response?
For the ground state of the hydrogen atom, which of the following represents the correct value of the orbital angular momentum quantum number?
A) -1 B) 1 C) 0 D) 2 E) -2
Waves on a String: What is the wave speed in a brass wire with a radius of 0.500 mm stretched with a tension of 125 N? The density of brass is 8.60 × 103 kg/m3.
A. 0.121 m/s B. 100 m/s C. 136 m/s D. 500 m/s E. 68.8 m/s
As shown below, a square loop of wire of side a moves through a uniform magnetic field of magnitude B perpendicular to the page at constant velocity
directed to the right. Which statement regarding the electric field induced in the wires is correct for the wires at the left and right sides of the loop?
?
a.
The electric field 
is directed upwards in both the right and left sides of the loop.
b.
The electric field s directed upwards in the right side and downwards in the left side of the loop.
c.
The electric field is directed upwards in the left side and downwards in the right side of the loop.
d.
The electric field is directed downwards in both the right and left sides of the loop.
e.
There is no electric field present in any side of the loop.