__________ radiation causes your skin to tan
Fill in the blank(s) with correct word
Ultraviolet
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Identical point charges Q are placed at each of the four corners of a 3.0-m × 4.0-m rectangle. If Q = 40 ?C, what is the magnitude of the electrostatic force on any one of the charges?
a. 3.0 N b. 2.4 N c. 1.8 N d. 3.7 N e. 2.0 N
An irregularly shaped object is attached to an axle so that it may be spun. If a torque of 250Nm must be applied for 1.25s in order to give it a rotation period of 0.10s, what is its moment of inertia?
A. 5.0
B. 31
C. 4.0
D. 25
Partially decomposed organic matter in the soil is
What will be an ideal response?
The actual depth of a shallow pool 1.00 m deep is not the same as the apparent depth seen when you look straight down at the pool from above. How deep (in cm) will it appear to be? (nwater = 1.33.)
a. 133 b. 75.2 c. 90.6 d. 117 e. 100