(i)
The net force exerted on the grain.
(i)
Answer to Problem 1OQ
Option (c) zero.
Explanation of Solution
According to the inverse square law of Newton, the force of gravity acting between any two objects are inversely proportional to the square of the separation between the object's centers. The light intensity pressure will also follow the inverse square law of Newton.
If the grain is moved to a distance
Conclusion:
Both the gravity force and intensity pressure on the grain will decrease so the net force on the grain will be zero. Therefore, option (c) is correct.
Both the gravity force and intensity pressure on the grain will decrease so the net force on the grain will be zero. Since it is given as net force is towards the sun. Therefore, option (a) is incorrect.
Both the gravity force and intensity pressure on the grain will decrease so the net force on the grain will be zero. Since it is given as net force is away from the Sun. Therefore, option (b) is incorrect.
Both the gravity force and intensity pressure on the grain will decrease so the net force on the grain will be zero. Since it is given that it is not possible to determine the net force without the mass of the grain. Therefore, option (d) is incorrect.
(ii)
The net force exerted on the grain.
(ii)
Answer to Problem 1OQ
Option (a) toward the Sun.
Explanation of Solution
According to the inverse square law of Newton, the force of gravity acting between any two objects is inversely proportional to the square of the separation distance between the object's centers.
The light intensity pressure will also follow inverse square law of Newton.
The smaller grain presents less face area and feels a smaller force due to light pressure. So, net force will be towards the Sun.
Conclusion:
The smaller grain presents less face area and feels a smaller force due to light pressure. Therefore, option (a) is correct.
The smaller grain presents less face area and feels a smaller force due to light pressure. Since it is given as net force is away from the Sun. Therefore, option (b) is incorrect.
The smaller grain presents less face area and feels a smaller force due to light pressure. Since it is given as net force is zero. Therefore, option (c) is incorrect.
The smaller grain presents less face area and feels a smaller force due to light pressure. Since it is given that it is not possible to determine the net force without the mass of the grain. Therefore, option (d) is incorrect.
Want to see more full solutions like this?
Chapter 34 Solutions
Bundle: Physics for Scientists and Engineers with Modern Physics, Loose-leaf Version, 9th + WebAssign Printed Access Card, Multi-Term
- A plane electromagnetic wave travels northward. At one instant, its electric field has a magnitude of 6.0 V/m and points eastward. What are the magnitude and direction of the magnetic field at this instant?arrow_forwardA radio station broadcasts at a frequency of 760 kHz. At a receiver some distance from the antenna, the maximum magnetic field of the electromagnetic wave detected is 2.151011T . (a) What is the maximum electric field? (b) What is the wavelength of the electromagnetic wave?arrow_forwardIf the electric field of an electromagnetic wave is oscillating along the z-axis and the magnetic field is oscillating along the x-axis, in what possible direction is the wave traveling?arrow_forward
- An automobile with a radio antenna 1.0 m long travels at 100.0 km/h in a location where theEarth’s horizontal magnetic field is 5.5105T . What is the maximum possible emf induced in the antenna due to this motion?arrow_forwardA parallel-plate capacitor with plate separation d is connected to a source of emf that places a time-dependent voltage V(t) across its circular plates of radius r0and area (a) Write an expression for the time rate of change of energy inside the capacitor in terms of V(t) and dV(t)/ dt. (b) Assuming that V(t) is increasing with time, identify the directions of the elecuic field lines inside the capacitor and of the magnetic field lines at the edge of the region between the plates, and then the direction of the Poynting vector S at this location. (c) Obtain expressions for the time dependence of E(t), for B(t) from the displacement current, and for the magnitude of the Poynting vector at the edge of the region between the plates. (d) From S , obtain an expression In terms of ‘(t) and dV(t)/dt for the rate at which electromagnetic field energy the region between the plates. (e) Compare the results of pails (a) and (d) and explain the relationship between them.arrow_forwardCheck Your Understanding What conclusions did our analysis of Maxwell's equations lead to about these properties of a plane electromagnetic wave: (a) the relative directions of wave propagation, of the E field, and of B field, (b) the speed of travel of the wave and how the speed depends on frequency, and (c) the relative magnitudes of the E and B fields.arrow_forward
- Suppose a spherical particle of mass m and radius R in space absorbs light of intensity I for time t. (a) How much work does the radiation pressure do to accelerate the particle (mm rest In the given tine It absorbs the light? (b) How much energy canted by the electromagnetic waves is absorbed by the particle over this time based on the radiant energy incident on the particle?arrow_forwardCheck Your Understanding Could a purely electric field propagate as a wave through a vacuum without a magnetic field? Justify your answer.arrow_forwardSuppose the parallel-plate capacitor shown below is accumulating charge at a rate of 0.010 C’s. What is the induced magnetic field at a distance of 10 cm from the capacitator?arrow_forward
- Show that the magnetic field at a distance r from the axis of two circular parallel plates, produced by placing charge Q(t) on the plates is Bind=02rdQ(t)dtarrow_forwardThe magnetic field between the poles of a horseshoe electromagnet is uniform and has a cylindrical symmetry about an axis from the middle of the South Pole to the middle of the North Pole. The magnitude of the magnetic field changes as a rate of dB/dt due to the changing current through the electromagnet, Determine the electric field at a distance r from the center.arrow_forwardThe potential difference V(t) between parallel plates shown above is instantaneously increasing at a rate of 107V/s. What is the displacement current between the plates if the separation of the plates is 1.00 cm and they have an area of 0.200m2?arrow_forward
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill