A room has 110 ft2 of floor space. What is the approximate volume of the room? (You will need to make a reasonable estimate of a missing physical quantity.)
a. 103 ft3
c. 105 ft3
b. 104 ft3
d. 106 ft3
A
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Significant Figures: What is the quotient of 2.43 ÷ 4.561 expressed to the correct number of significant figures?
A. 5.3278 × 10-1 B. 5.328 × 10-1 C. 5.33 × 10-1 D. 5.3 × 10-1
A child throws a ball with an initial speed of 8.0 m/s at an angle of 40° above the horizontal. The ball leaves her hand 1.0 m above the ground. At what angle below the horizontal does the ball approach the ground?
A) 35° B) 42° C) 48° D) 40° E) 65°
A light beam with wavelength 440. nm in a material then enters air and its wavelength becomes 577. nm
(a) What is the index of refraction for the material? (b) At what angle with the surface will the beam be totally reflected back in the material?
Is peak nucleate boiling a stable boiling condition?
What will be an ideal response?