Concept explainers
<a>
The ratio
<a>
Answer to Problem 12P
The ratio
Explanation of Solution
Convert, speed kilometer per hour to meter per second. Thus
Substitute
Conclusion:
Therefore, the ratio
<b>
The ratio
<b>
Answer to Problem 12P
The ratio
Explanation of Solution
Substitute
Conclusion:
Therefore, the ratio
<c>
The ratio
<c>
Answer to Problem 12P
The ratio
Explanation of Solution
Velocity of the sound in the is
Write the formula for the conversion of the speed of the supersonic plane from Mach to meter per second. Thus,
Substitute
Substitute
Conclusion:
Therefore, the ratio
<d>
The ratio
<d>
Answer to Problem 12P
The ratio
Explanation of Solution
Convert, speed kilometer per hour to meter per second. Thus
Substitute
Conclusion:
Therefore, the ratio
<e>
The ratio
<e>
Answer to Problem 12P
The ratio
Explanation of Solution
Write the equation to calculate the speed of the electron. Thus
Distance covered by the electron is 25 cm. Convert this distance in meter, thus,
Time taken by the electron to cover 25 cm is 2 ns. Convert this time in second, thus,
Substitute
Substitute
Conclusion:
Therefore, the ratio
<f>
The ratio
<f>
Answer to Problem 12P
The ratio
Explanation of Solution
Write the equation to calculate the Speed of the electron. Thus
Distance covered by the electron is
Substitute
Substitute
Conclusion:
Therefore, the ratio
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Chapter 2 Solutions
Modern Physics for Scientists and Engineers
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- According to special relativity, a particle of rest mass m0 accelerated in one dimension by a force F obeys the equation of motion dp/dt = F. Here p = m0v/(1 –v2/c2)1/2 is the relativistic momentum, which reduces to m0v for v2/c2 << 1. (a) For the case of constant F and initial conditions x(0) = 0 = v(0), find x(t) and v(t). (b) Sketch your result for v(t). (c) Suppose that F/m0 = 10 m/s2 ( ≈ g on Earth). How much time is required for the particle to reach half the speed of light and of 99% the speed of light?arrow_forwardAn enemy spacecraft moves away from the Earth at a speed of v = 0.800c (Fig. P9.19). A galactic patrol spacecraft pursues at a speed of u = 0.900c relative to the Earth. Observers on the Earth measure the patrol craft to be overtaking the enemy craft at a relative speed of 0.100c. With what speed is the patrol craft overtaking the enemy craft as measured by the patrol crafts crew? Figure. P9.19arrow_forwardConsider an electron moving with speed 0.980c. a. What is the rest mass energy of this electron? b. What is the total energyof this electron? c. What is the kinetic energy of this electron?arrow_forward
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