A spherical interplanetary grain of dust of radius 0.2 μm is at a distance r 1 from the Sun. The gravitational force exerted by the Sun on the grain just balances the force due to radiation pressure from the Sun's light. (i) Assume the grain is moved to a distance 2 r 1 from the Sun and released. At this location, what is the net force exerted on the grain? (a) toward the Sun (b) away from the Sun (c) zero (d) impossible to determine without knowing the mass of the grain (ii) Now assume the grain is moved back to its original location at r 1 , compressed so that it crystallizes into a sphere with significantly higher density, and then released. In this situation, what is the net force exerted on the grain? Choose from the same possibilities as in part (i).
A spherical interplanetary grain of dust of radius 0.2 μm is at a distance r 1 from the Sun. The gravitational force exerted by the Sun on the grain just balances the force due to radiation pressure from the Sun's light. (i) Assume the grain is moved to a distance 2 r 1 from the Sun and released. At this location, what is the net force exerted on the grain? (a) toward the Sun (b) away from the Sun (c) zero (d) impossible to determine without knowing the mass of the grain (ii) Now assume the grain is moved back to its original location at r 1 , compressed so that it crystallizes into a sphere with significantly higher density, and then released. In this situation, what is the net force exerted on the grain? Choose from the same possibilities as in part (i).
Solution Summary: The author calculates the net force exerted on the grain if it is moved to a distance from the sun and released.
A spherical interplanetary grain of dust of radius 0.2 μm is at a distance r1 from the Sun. The gravitational force exerted by the Sun on the grain just balances the force due to radiation pressure from the Sun's light. (i) Assume the grain is moved to a distance 2r1 from the Sun and released. At this location, what is the net force exerted on the grain? (a) toward the Sun (b) away from the Sun (c) zero (d) impossible to determine without knowing the mass of the grain (ii) Now assume the grain is moved back to its original location at r1, compressed so that it crystallizes into a sphere with significantly higher density, and then released. In this situation, what is the net force exerted on the grain? Choose from the same possibilities as in part (i).
Study of body parts and their functions. In this combined field of study, anatomy refers to studying the body structure of organisms, whereas physiology refers to their function.
y[m]
The figure shows two snapshots of a single wave on a string. The wave is
traveling to the right in the +x direction. The solid line is a snapshot of the wave
at time t=0 s, while the dashed line is a snapshot of the wave at t=0.48s.
0
0.75
1.5
2.25
3
8
8
6
6
4
2
4
2
0
-2
-2
-4
-4
-6
-6
-8
-8
0
0.75
1.5
2.25
3
x[m]
Determine the period of the wave in units of seconds.
Enter your numerical answer below including at least 3 significant figures. Do
not enter a fraction, do not use scientific notation.
No chatgpt pls will upvote
An extremely long, solid nonconducting cylinder has a radius Ro. The charge density within the cylinder is a
function of the distance R from the axis, given by PE (R) = po(R/Ro)², po > 0.
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