If a particle in a box has a ground-state energy of 10.0 eV, what is the energy of the 4th excited state?
A. 20.0 eV
B. 40.0 eV
C. 160 eV
D. 50.0 eV
E. 250 eV
E. 250 eV
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A(n) ______________ image is defined as one that cannot be brought to a focus on a screen
a. virtual b. real c. upright d. inverted
Coil 1, connected to a 100-? resistor, sits inside coil 2 . Coil 1 is connected to a source of 60 cycle per second AC current. Which statement about coil 2 is correct?
a. No current will be induced in coil 2. b. DC current (current flow in only one direction) will be induced in coil 2. c. AC current (current flow in alternating directions) will be induced in coil 2. d. DC current will be induced in coil 2, but its direction will depend on the initial direction of flow of current in coil 1. e. Both AC and DC current will be induced in coil 2.
An electroscope is charged by induction using a glass rod that has been made positive by rubbing it with silk. The electroscope leaves:
A) gain electrons B) gain protons C) lose electrons D) lose protons E) gain an equal number of protons and electrons
A 0.500-kg ball traveling horizontally on a frictionless surface approaches a very massive stone at 20.0 m/s perpendicular to wall and rebounds with 70.0% of its initial kinetic energy. What is the magnitude of the change in momentum of the stone?
A) 18.4 kg?m/s B) 14.0 kg?m/s C) 3.00 kg?m/s D) 1.63 kg?m/s E) 0.000 kg?m/s