The number of atoms in the sulfuric acid molecule, H2SO4, is
A) 7.
B) 4.
C) 3.
D) 6.
E) cannot be determined from the given information
A
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Elastic Collisions: A 340-g air track cart traveling at 1.25 m/s suddenly collides elastically with a stationary 300-g cart. What is the speed of the 300-g cart just after the collision?
A. 0.0781 m/s B. 1.33 m/s C. 0.625 m/s D. 1.25 m/s E. 0.664 m/s
Has a nuclear device ever been exploded by a terrorist?
A) No, although a terrorist has been arrested who possessed and planned to use a stolen nuclear weapon. B) No, although a terrorist has been arrested who possessed and planned to use a dirty bomb. C) No, in fact there are no known instances of terrorists even possessing a nuclear device. D) Yes, a small dirty bomb was exploded during the Iraq War. E) Yes, terrorists have entered a nuclear power plant in Pakistan and dispersed radioactive materials.
By what factor would the total power from a black body be modified if the surface area were to decrease by a factor of two while the temperature was doubled? /span>
1.1/16 2.1/8 3.1/4 4.1 5.4 6.8 7.None of the above 8.Cannot be determined
What is the magnitude of the momentum of a proton moving at 0.95 c? 
A. 
B. 
C. 
D. 
E. 