A spherical fruit has a radius of 3.23 cm. What is the volume of the fruit in cubic meters?
A) 1.41 × 10-4 m3
B) 1.41 m3
C) 4.23 × 10-4 m3
D) 4.23 m3
A
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- Rock
- Both ice and rock
- Ice
A slide projector is designed with its lens 6.0 m from the screen. The projected image is 1.5 m square of a slide object 2.5 cm square
(a) What is the object distance from the lens? (b) What should be the lens focal length? (c) What is the lens POWER?
A point charge of 6.0 nC is placed at the center of a hollow spherical conductor (inner radius = 1.0 cm, outer radius = 2.0 cm) which has a net charge of -4.0 nC. Determine the resulting charge density on the inner surface of the conducting sphere
a. +4.8 mC/m2 b. -4.8 mC/m2 c. -9.5 mC/m2 d. +9.5 mC/m2 e. -8.0 mC/m2
Tensile Stress and Strain: Which of the following are SI units of Young's modulus? (There could be more than one correct choice.)
A. N/m ? s2 B. kg/m2 C. kg ? m/s2 D. kg/m ? s2 E. kg ? m2/s2