Almost every celestial object we see in the sky on a dark, clear night is within the Milky Way galaxy
a. True
b. False
Indicate whether the statement is true or false
True
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Equilibrium: A 400-kg box is lifted vertically upward with constant velocity by means of two cables pulling at 40.0° on either side of the vertical direction. What is the tension in each cable?
A. 231 N B. 400 N C. 800 N D. 2560 N E. 3920 N
Which of the following claims cannot be tested by science?
A) The Earth was created by God. B) The Sun goes around the Earth. C) The geometry of the universe is curved. D) This drug will cure cancer. E) Smoking shortens people's lifespans.
An ideal air-filled parallel plate capacitor with plate a separation of 4.0 cm has a plate area of 0.040 m2. What is the capacitance of this capacitor with air between these plates? (?0 = 8.85 × 10-12 C2/N ? m2)
A) 89 pF B) 8.9 nF C) 8.9 pF D) 0.89 pF E) 8.9 µF
If the temperature of a wire increases, its resistance __________
Fill in the blank(s) with correct word