For a wave traveling in a string, by what factor would the tension need to be increased to triple the wave speed?
a. 2.7
c. 3.0
b. 9.0
d. 1.7
B
Physics & Space Science
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Four 12
resistors are connected together.
A. 12
B. 24
C. 36
D. 48
E. 44
Physics & Space Science
Size of the Nucleus: Estimate the mass of a nucleus with radius 2.8 ×10-15 m. (1 u = 1.6605 × 10-27 kg)
A. about 2.1 × 10-26 kg B. about 7.5 × 10-27 kg C. about 2.3 × 10-26 kg D. about 4.7 × 10-26 kg
Physics & Space Science
Albert uses as his unit of length (for walking to visit his neighbors or plowing his fields) the albert (A), the distance Albert can throw a small rock. One albert is How many square alberts is equal to one acre? (1 acre = 43,560 ft2 = 4050 m2)
What will be an ideal response?
Physics & Space Science
For a first-quarter Moon, approximately what is the angle eastward from the Sun to the Moon?
a. 30° b. 90° c. 180° d. 360° e. 0°
Physics & Space Science