______________ is the major moon of Neptune
a. Triton
b. Titan
c. Ganymede
d. Europa
e. Callisto
a
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Which one of the following IS NOT a characteristic of terrestrial planets?
a. low average density b. orbits inside the asteroids c. craters in old surfaces d. small diameters e. very few satellites
In which way does a photon of blue light NOT differ from a photon of red light?
a. Energy b. Speed c. Wavelength d. Color e. Frequency
A spring-powered launcher has a spring with a spring constant of 150 N/cm. The launcher is prepared to launch a projectile by compressing the spring by 5.00 cm. If the mass of the projectile is 5.00 grams, then what is the velocity of the projectile when it is launched from the launcher?
A. 90.6 m/s B. 86.6 m/s C. 75.5 m/s D. 60.3 m/s E. 56.6 m/s
A radio wave transmits 4.8 W/m2 average power per unit area. What is the peak value of the associated magnetic field? (m0 = 4p × 10^-7 T×m/A and c = 3.00 × 10^8 m/s)
a. 1.0 × 10^-7 T c. 2.0 × 10^–7 T b. 8.4 × 10^-3 T d. 30 T