The work done by a non-conservative force is recoverable
Indicate whether the statement is true or false
FALSE
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The composition of a planet's atmosphere be measured during a transit by analyzing
A) the excess absorption of starlight at specific wavelengths. B) the excess emission of starlight at specific wavelengths. C) the length and depth of the dip in light during the transit. D) the amplitude and period of the star's motion. E) the wobble in a star's position on the sky.
Which two temperature changes are equivalent?
A) 1 C° = 1 K B) 1 F° = 1 C° C) 1 K = 1 F° D) none of the above
How large a force is necessary to stretch a 2.0-mm diameter copper wire (Y = 11 × 10^10 N/m2) by 1.0%?
a. 2.1 kN b. 3.5 kN c. 6.9 kN d. 11 kN e. 5.4 kN
The figure shows a uniform rod (length L = 1.0 m, mass = 2.0 kg) suspended from a pivot a distance d = 0.25 m above its center of mass. The angular frequency (in rad/s) for small oscillations is approximately
?
?
a.
1.0.
b.
2.5.
c.
1.5.
d.
4.1.
e.
3.5.