If a doubly-ionized oxygen atom (O–2) is accelerated from rest by going through a potential difference of 32 V, what will be the change in its kinetic energy?
a. 16 eV
b. 32 eV
c. 64 eV
d. 51 eV
e. none of the above
c
You might also like to view...
Accretion occurred sooner in the inner part of the solar system than it did in the outer regions
Indicate whether the statement is true or false
The most common isotope of gold has atomic number 79 and atomic weight 197
How many protons and neutrons does the gold nucleus contain? Assuming the gold is electrically neutral, how many electrons does it have? If the gold is triply ionized, how many electrons does it have?
The electric potential at the surface of a charged conductor
A. is always zero. B. is always independent of the magnitude of the charge on the surface. C. may be set equal to zero by adding an appropriate constant to the potential at all points of space. D. is always such that the potential is zero at all points inside the conductor. E. is always such that the potential is always zero within a hollow space inside the conductor.
A 0.75-kg sphere is released from rest and is moving 5.0 m/s after falling 2.0 m in a viscous medium. What is the change in mechanical energy caused by the force the viscous medium exerts on the sphere during this descent?
a. ?6.1 J b. ?4.6 J c. ?5.3 J d. ?6.8 J e. ?2.7 J