A uniform linear charge density of 4.0 nC/m is distributed along the entire x axis. Consider a spherical (radius = 5.0 cm) surface centered on the origin. Determine the electric flux through this surface
a. 68 N × m2/C
b. 62 N × m2/C
c. 45 N × m2/C
d. 79 N × m2/C
e. 23 N × m2/C
C
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In covalently bonded materials the creep mechanism of dislocation glide generally starts at a temperature of _________percent of the melting temperature in kelvin.
Fill in the blank(s) with the appropriate word(s).
What is the power needed to change the speed of a 1600-kg sport utility vehicle from 15.0 m/s to 40.0 m/s in 4.00 seconds?
A) 100 kW B) 10.0 kW C) 140 kW D) 14.0 kW E) 275 kW
In an RL circuit, which of the following is a possible magnitude of a phase angle?
a. 45° b. 315° c. 225° d. 135°
An oxygen molecule, O2, falls in a vacuum. From what height must it fall so that its translational kinetic energy at the bottom of its fall equals the average translational kinetic energy of an oxygen molecule at 920 K?
The mass of one O2 molecule is 5.312 × 10-26 kg, and the Boltzmann constant is 1.38 × 10-23 J/K. Neglect air resistance and assume that g remains constant at 9.8 m/s2 throughout the fall of the molecule. A) 12 km B) 37 km C) 5.2 km D) 24 km E) 49 km