A proton's rest mass is 1.67 × 10^?27 kg. Calculate its total energy when it is accelerated to a speed of 0.80 c
a. 1.5 × 10^?10 J
b. 1.0 × 10^?10 J
c. 2.5 × 10^?10 J
d. 2.0 × 10^?10 J
e. 7.5 × 10^?10 J
c
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In the x-ray chemical analysis of the stainless-steel specimen in Figure 15.11, the Cr K? line with a wavelength of 0.2291 nm occurs at 99 degrees. What is the interplanar spacing of the crystal used in this wavelength dispersion experiment?
What will be an ideal response?
A series circuit consists of a 1.02 V source of emf, a 2.00 mF capacitor, a 1000 
resistor, and a switch. When the switch is closed, how long does it take for the current to reach one-half its maximum value?
A. 0.693 s B. 1.39 s C. 2.00 s D. 1.69 s E. 0.0250 s
Find the equation 
that fits the following data.
a. 
b. 
c. 
d. 
An object with mass m and moment of inertia I is spinning with an angular momentum L. Its kinetic energy is:
a. 0.5I2/L. c. 0.5L2/m. b. 0.5L2/I. d. 0.5I2/m.