The greater proportion of energy immediately converted to heat rather than light occurs in
A) a fluorescent lamp.
B) an incandescent lamp.
C) both of these
D) neither of these
Answer: B
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Pascal's Principle: In a hydraulic garage lift, the small piston has a radius of 5.0 cm and the large piston has a radius of 15 cm. What force must be applied on the small piston in order to lift a car weighing 20,000 N on the large piston? Assume the pistons each have negligible weight.
A. 6.7 × 103 N B. 5.0 × 103 N C. 2.9 × 103 N D. 2.2 × 103 N
Resonance occurs when
a. two different objects vibrate with different frequencies. b. two different objects produce beats. c. an object having a certain natural frequency is set in vibration by a second object vibrating at that frequency. d. an object produces a sound.
Process of Science: Since scientists can't follow the stellar formation process of a single star from start to finish, how do they study solar life cycles?
What will be an ideal response?
Knowing the peak emission wavelength of a blackbody allows you to determine its ________
Fill in the blank(s) with correct word