A student adds two vectors with magnitudes of 200 and 70 . Which one of the following is the only possible choice for the magnitude of their sum?
a. 100
c. 200
b. 280
d. 70
C
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The explosion in a cannon exerts an average force of 30,000 N for 2.00 meters. The velocity of a 2.00 kg projectile shot from the cannon is
A. 198 m/s. B. 245 m/s. C. 302 m/s. D. 354 m/s. E. 412 m/s.
The sequence OBAFGKM orders the stars in decreasing temperature and decreasing mass.
Answer the following statement true (T) or false (F)
What is the electron configuration for Li which has three electrons?
A) 1s3 B) 1s12s2 C) 1s22s1 D) 1s21p1 E) 1s11p2
In the Compton effect, if a photon is scattered at a particular angle, the resulting shift in wavelength for the scattered photon
A) is the same for all incident energy photons. B) is greater for a higher energy incident photon. C) depends on the wavelength of the incident photon. D) is never the same for incident energy photons. E) is less for a higher energy incident photon.