Essential University Physics (3rd Edition)
3rd Edition
ISBN: 9780134202709
Author: Richard Wolfson
Publisher: PEARSON
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Chapter 29, Problem 74PP
To determine
The acceleration of the space craft.
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A solar flare occurs in the surface of the sun on Monday morning at 11:45 AM. The sun is 1.496 x 108 kilometers
away and light travels at 300 000 km per second.
A. How long thereafter will the light beam reach the earth?
B. What time of the day will the beam of light reach occurred at 11:45?
C.
If the solar flare re occurred at 1:30 pm when will the light from the flare reach earth?
1. The electronic structure of atoms and molecules may be
investigated using photoe
using photo electron spectroscopy. An electron
in a photoelectron spectrometer is accelerated from rest
by auniform electric field to a speed of 420km s-lin
of the electrons in
in ms-²?
10 MS. Determine the magnitude of the acceleration
4.2×10¹ m/s²
4.2x1010
38×10-26,
e
m/s²
24.2x104
2
"m/s²
2. The electronic structure of atoms and molecules
may be investigated using Photoelectron spectroscopy. An
electron in a photoelectron spectrometeris accelerated
from nest by a uniform electric field to a speed of 420 kms!
in 10μs. Use the magnitude of the acceleration estimated in
questions.
determine the force acting on the electron?
kgm/s²
4.2x1013 m/s²
3.8 x 10-17
kg. m/s²
2
@ 3.8x 10-²² kgm/3²
3.8x10-20
kgm/s²
Electromagnetic waves (EM) are produced by
A.
A neutron accelerating from 50m/s to 90m/s
B.
An electron at rest.
C.
A proton at rest.
D.
An electron accelerating from 50m/s to 90m/s.
Chapter 29 Solutions
Essential University Physics (3rd Edition)
Ch. 29.2 - Would you expect to find a magnetic field between...Ch. 29.5 - Prob. 29.3GICh. 29.6 - Prob. 29.4GICh. 29.7 - Prob. 29.5GICh. 29.8 - Lasers 1 and 2 emit light of the same color, and...Ch. 29 - Why is Maxwells modification of Ampres law...Ch. 29 - Prob. 2FTDCh. 29 - Is there displacement current in an...Ch. 29 - Prob. 4FTDCh. 29 - Prob. 5FTD
Ch. 29 - When astronomers observe a supernova explosion in...Ch. 29 - Turning a TV antenna so its rods point vertically...Ch. 29 - The Sun emits about half of its...Ch. 29 - An LC circuit is made entirely from...Ch. 29 - Prob. 10FTDCh. 29 - The intensity of light drops as the inverse square...Ch. 29 - Electromagnetic waves dont readily penetrate...Ch. 29 - Prob. 13ECh. 29 - Prob. 14ECh. 29 - The fields of an electromagnetic wave are E = Ep...Ch. 29 - A radio waves electric field is given by the...Ch. 29 - A light-minute is the distance light travels in 1...Ch. 29 - Your intercontinental telephone call is carried by...Ch. 29 - An airplanes radar altimeter works by bouncing...Ch. 29 - Roughly how long does it take light to travel 1...Ch. 29 - If you speak via radio from Earth to an astronaut...Ch. 29 - What are the wavelengths of (a) a 100-MHz FM radio...Ch. 29 - A 60-Hz power line emits electromagnetic...Ch. 29 - Microwave ovens for consumers use operate at 2.45...Ch. 29 - Prob. 25ECh. 29 - Prob. 26ECh. 29 - Vertically polarized light passes through a...Ch. 29 - Prob. 28ECh. 29 - Prob. 29ECh. 29 - Estimate the peak electric field inside a 1.1-kW...Ch. 29 - Prob. 31ECh. 29 - Prob. 32ECh. 29 - Your university radio station has a 5.0-kW radio...Ch. 29 - Prob. 34PCh. 29 - Youre engineering a new cell phone, and youd like...Ch. 29 - Prob. 36PCh. 29 - The medical profession divides the ultraviolet...Ch. 29 - Prob. 38PCh. 29 - Prob. 39PCh. 29 - A polarizer blocks 75% of a polarized light beam....Ch. 29 - Prob. 41PCh. 29 - Unpolarized light of intensity S0 passes first...Ch. 29 - Prob. 43PCh. 29 - Prob. 44PCh. 29 - High microwave intensities can cause biological...Ch. 29 - Use the fact that sunlight intensity at Earths...Ch. 29 - A quasar 10 billion light-years from Earth appears...Ch. 29 - Prob. 48PCh. 29 - Prob. 49PCh. 29 - Find the peak electric and magnetic fields 1.5 m...Ch. 29 - A typical fluorescent lamp is a little more than 1...Ch. 29 - Prob. 52PCh. 29 - A laser produces an average power of 7.0 W in a...Ch. 29 - Prob. 54PCh. 29 - A 65-kg astronaut is floating in empty space. If...Ch. 29 - Prob. 56PCh. 29 - A white dwarf star is approximately the size of...Ch. 29 - Use appropriate data from Appendix E to calculate...Ch. 29 - Prob. 59PCh. 29 - Prob. 60PCh. 29 - In a stack of polarizing sheets, each sheet has...Ch. 29 - Prob. 62PCh. 29 - Prob. 63PCh. 29 - Maxwells equations in a dielectric resemble those...Ch. 29 - Prob. 65PCh. 29 - Your roommates father is CEO of a coal company, so...Ch. 29 - The Voyager I spacecraft is now beyond the outer...Ch. 29 - Prob. 68PCh. 29 - Prob. 69PCh. 29 - The table below shows the intensity of the radio...Ch. 29 - If a sunlight-powered sailing spacecraft...Ch. 29 - Prob. 72PPCh. 29 - A sail capable of propelling a spacecraft to the...Ch. 29 - Prob. 74PP
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- choose the correct answerarrow_forward= Sunlight reaches earth with an intensity of I = 1 kW.m-2. Knowing that the Earth-Sun distance is R₁ R₂ = 228 106 km, work out the intensity of sunlight on Mars in W/m^2. Number Units 148 106 km and that the Mars-Sun distance isarrow_forwardSpace-based telescopes are needed to observe electromagnetic energy that cannot reach the surface of Earth. The regions of the electromagnetic energy spectrum that do reach Earth’s surface pass through what are referred to as a. atmospheric windows. b. atmospheric portals. c. electromagnetic openings. d. extreme wavelengths. e. visible and radio waves.arrow_forward
- 16. Light has a frequency of 5.45 1014 hertz [Note: Hz is also s-1]. What is its wavelength? Use the speed of light = 3.00 108 m/s. a. 1.82 106 nm b. 1.82 10-3 nm c. 1.82 105 nm d. 5.50 10-7 nm e. 550 nmarrow_forward4. The sun has a mass of Mo=2.0 x 1030 kg and it radiates P = 3.8 x 1026 W in the form of electromagnetic radiation. The gravitational constant is G = 6.7 x 10-11 N- (a) Find expressions for the gravitational and electromagnetic forces on a sphere of radius r which is located a distance R from the center of the sun, assuming that all of the electromagnetic radiation incident on the sphere is absorbed, and that the sphere is composed of material with a density of p=5 g/cm³. (b) For what value of r are these forces equal? I would like for you to calculate the actual number for this part. 44°F Search Sunny TAB CAPS LOCK E 3 L % S T བ ༥ ཇ་ཥ ་ F 9 YUEOPL K CTRL SHIFT NVIDIA GEFORCE RTX N ALT x C B m BACKSPACE 5:44 PM 3/24/2024 DELETE PGONarrow_forward(a) The distance to a star is approximately 4.97 × 10¹8 m. If this star were to burn out today, in how many years would we see it disappear? years (b) How long does it take sunlight to reach Earth? minutes (c) How long does it take for a microwave radar signal to travel from Earth to the Moon and back? (The distance from Earth to the Moon is 3.84 x 105 km.) Sarrow_forwardIn the Michelson-Morley experiment of 1887, the speed at which light traveled through vacuum in perpendicular directions was measured to high accuracy. The data indicated that light traveled at exactly the same speed, independent of which direction it traveled. From this data, scientists concluded that: Select one: a.the speed that light travels through vacuum depends on the speed of the source of light b.light behaves like a stream of particles c.light can eject electrons from a metal surface d.light does not require a medium - it may travel through vacuumarrow_forward2. The speed of light in a vacuum is c = 3 × 10 8 m / s, and the distance from the Earth to the Sun is R ≈ 150 × 10 6 km . a. A light-minute is the distance that light travels in 1 minute. What is a light minute in meters? b. Express the Earth-Sun distance R in terms of light-minutes. c. How much time does it take for light to travel from the Sun to the Earth? 3. (1.39) Tectonic plates are large segments of Earth's crust that move slowly. Suppose a plate has average speed of v = 4.0 cm / year . a. What distance does the plate move in 1.0 s? b. Express the speed v in km/million year .arrow_forwardRadio waves travel at the speed of light, 3.0 x 108 m/s. The wavelength of a radio wave received at 100 x 106 hertz is O 0.3 m. O 3.0 m. O 30 m. O 300 m. O none of the abovearrow_forward20. The electric field of an electromagnetic wave is described by the function: E = (375 V/m) cos[(1.99x107 rad/m)x+ (5.97x10¹5 rad/s)t]. What are the speed, the wavelength and the frequency of this wave? Is the wave visible to human eyes? (Answers: 3.00x10³ m/s; 316 nm; 9.50x10¹4Hz; No)arrow_forwardEMW (Electromagnetic waves) are produced by A. A neutron moves with a velocity of 200 m/s B. A proton speeds up from 50m/s to 75m/s C. Stationary electrons D. An electron moves with a contant speed of 35m/s in a straight line.arrow_forwardB3arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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