300-nm light has a lower frequency than 500-nm light
a. True
b. False
Indicate whether the statement is true or false
False
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A monel shell (Em 5 170 GPa, d3 5 12 mm, d2 5 8 mm) encloses a brass core (Eb 5 96 GPa, d1 5 6 mm). Initially, both shell and core have a length of 100 mm. A load P is applied to both shell and core through a cap plate. The load P required to compress both shell and core by 0.10 mm is approximately:
(A) 10.2 kN
(B) 13.4 kN
(C) 18.5 kN
(D) 21.0 kN
A futuristic design for a car is to have a large solid disk-shaped flywheel within the car storing kinetic energy. The uniform flywheel has mass 370 kg with a radius of 0.500 m and can rotate up to 230 rev/s
Assuming all of this stored kinetic energy could be transferred to the linear velocity of the 1600-kg\ car, find the maximum attainable speed of the car.
A circuit breaker connects two parts of a circuit if the current flowing in the circuit is too large
What will be an ideal response?
The choices describe four hypothetical planets. Which one would you expect to have the hottest interior? (Assume the planets orbit a star just like the Sun and that they are all the same age as the planets in our solar system.)
A) Size: twice as big as Earth Distance from Sun: same as Mercury Rotation rate: once every 6 months B) Size: same as the Moon Distance from Sun: same as Mars Rotation rate: once every 10 days C) Size: same as Mars Distance from Sun: same as Earth Rotation rate: once every 18 hours D) Size: same as Venus Distance from Sun: same as Mars Rotation rate: once every 25 hours