Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 7, Problem 73P
To determine
The rest energy of person in mega electron-volts and joules;
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Our Sun shines bright with a luminosity of 3.828 x 1026 Watt. Her energy is responsible for manyprocesses and the habitable temperatures on the Earth that make our life possible.(a) Calculate the amount of energy arriving on the Earth in a single day.
=6 x 10^22(b) To how many liters of heating oil (energy density: 37.3 x 106J/liter) is this equivalent? =1.6 x 10^15(c) The Earth reflects 30% of this energy: Determine the temperature on Earth’s surface.(d) What other factors should be considered to get an even more precise temperature estimate?Note: The Earth’s radius is 6370 km; the Sun’s radius is 696 x 103 km; 1 AU is 1.495 x 108 km
anwer according to the blanks:
A new type of force was discovered by physicists with the following expression:
where alpha & beta are constants, and x is the position. The expression above was obtained from the interaction of a massless Higgs Boson (a type of particle) and a black hole.
Quantum physicists then decides to design and build a machine that is able to move the Higgs Boson from x2 to x1. How much work should the machine do to achieve this feat? (For simplicity, consider that no energy is lost in the process)
Solution
To determine the work done we apply the following
W = Blank 1dx
Evaluating the above, we get
W = Blank 2| Blank 3 | + Blank 4eBlank 5 + Blank 6xBlank 7 for the limits from xi to xf
substituting x1 and x2 as the limits, the work done is expressed as
W = Blank 8| Blank 9/Blank 10 | + ( Blank 11x1 - Blank 12 ) + Blank 13( x15 - x25 )
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Sending spaceships to the outer regions of the solar system requires large energies. The slingshot effect is a frequently used method for speeding
up spaceships without using much rocket fuel. To use this effect, the spaceship is diverted to pass around one of the inner planets (such as Venus).
If the spaceship is sent in the right direction, it will reach to greater speeds after it passes around the planet. You will see the effect at play in this
question.
A spaceship is sent with an initial velocity of vs = (20 - j+ 30- i) km/s towards a planet. The planet is moving with velocity öp
After the encounter with the planet, the spaceship emerges to be moving along the +a direction (with a final velocity of the form ig = i). Find
the final speed of the spaceship in units of km/s.
= 45i km/s.
km/s
Hint 1: This is an elastic "collision". When you hear the word collision, you usually imagine something that happens quickly: in contrast this collision
happens over days and perhaps even…
Chapter 7 Solutions
Physics for Scientists and Engineers
Ch. 7 - Prob. 1PCh. 7 - Prob. 2PCh. 7 - Prob. 3PCh. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10P
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