You carry a 20-N box 5 m horizontally across a room. The work you do is 100 N-m
a. True
b. False
Indicate whether the statement is true or false
False
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Which of the following processes would be the most likely process for making composite materials for the shafts of golf clubs?
(a) Resin transfer molding (b) Vacuum bagging (c) Pultrusion (d) Filament winding
Given 4 tuning forks of frequency 446, 440, 443, and 449 Hz, how many different beat frequencies could be produced and what are they?
What will be an ideal response?
Four identical 2.5-mF capacitors are connected together electrically. What is the greatest possible capacitance of the combination?
a. 0.50 mF b. 0.42 mF c. 0.63 mF d. 10 mF e. 0.40 mF
Neglecting recoil of the gold nucleus, how much kinetic energy must an alpha particle (charge = 2 × 1.6 × 10^-19 C) have to approach to within 1.95 × 10^-14 m of a gold nucleus (charge = 79 × 1.6 × 10^-19 C)? (ke = 8.99 × 10^9 N×m2/C2 and 1 MeV = 1.6 × 10^-13 J)
a. 14.6 MeV c. 18.2 MeV b. 11.7 MeV d. 22.7 MeV