Fusing two iron nuclei would occur with
A) absorption of energy.
B) release of energy.
C) neither of these
Answer: A
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In radioactive decay, the changed nucleus after decay is referred to as the
A) daughter isotope B) parent isotope C) mother-in-law isotope D) progenitor isotope
An alpha particle (m = 6.7 × 10^?27 kg, q = +3.2 × 10^?19 C) has a speed of 20 km/s at point A and moves to point B where it momentarily stops. Only electric forces act on the particle during this motion. Determine the electric potential difference VA ? VB
a. +4.2 V b. ?4.2 V c. ?9.4 V d. +9.4 V e. ?8.4 V
An ideal step-down transformer has 200 primary turns and 50 secondary turns. If 440 volts (rms) is placed across the primary, what is the current in the secondary when the load resistance is 7.00 ohms?
a. 3.6 A (rms) b. 7.3 A (rms) c. 11.4 A (rms) d. 15.7 A (rms) e. 12.4 A (rms)
The orientation of an image seen projected on a screen by a single lens is always __________
Fill in the blank(s) with correct word