A vertical wire carries a current straight up in a region where the magnetic field vector points due North. What is the direction of the resulting force on this current?
A) North
B) downward
C) East
D) West
E) South
Question 2Which type of rock is the easiest to date radiometrically?
A) sedimentary
B) all three types of rock are equally easy to date
C) metamorphic
D) igneous
Question 3Early AM radios required very long antennae wires. FM antennae are often approximately a meter in size. Can you surmise why sensitive FM aerials are much smaller than those AM wires?
What will be an ideal response?
Question 4A string of linear density 6.00 g/m is under a tension of 180. N. What is the velocity of propagation of transverse waves along the string?
What will be an ideal response?
Question 5At what rate is the human body radiating energy when it is at 33C? Take the body surface area to be 1.4 m2, and approximate the body as a black body.
What will be an ideal response?
Question 6What charge appears on the plates of a 2.00 F capacitor when it is charged to 100. V?
What will be an ideal response?