An airplane with a wingspan of 60.0 m flies parallel to the Earth's surface at a point where the downward component of the Earth's magnetic field is 0.400 × l0-4 T. If the induced potential between wingtips is 0.600 V, what is the plane's speed?
a. 338 m/s
c. 250 m/s
b. 375 m/s
d. 417 m/s
C
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The vast majority of stars near us would fall to the bottom right on the H-R diagram
Indicate whether the statement is true or false
The proper time interval between two events is measured from the frame of reference of an observer present at both events. Therefore, the proper time measurement of the decay of a neutron is measured by
A. an observer at the speed of light, relative to the neutron. B. an observer who is emitting light at all frequencies. C. an imaginary observer riding along with the neutron. D. an observer in the national lab at Los Alamos or any other certified nuclear lab.
Two forces of magnitude 50 N, as shown in the figure below, act on a cylinder of radius 4 m and mass 6.25 kg. The cylinder, which is initially at rest, sits on a frictionless surface. After 1 second, the velocity and angular velocity of the cylinder in m/s and rad/s are respectively
A. v = 0; ? = 0. B. v = 0; ? = 4. C. v = 0; ? = 8. D. v = 8; ? = 8. E. v = 16; ? = 8.
The orbit of Triton is ________, very different from all other major moons
Fill in the blank(s) with correct word