Answered: The atomic mass of Thorium-234 is…

The atomic mass of Thorium-234 is 234.04359 u, and the atomic mass of Protactinium-234 is 234.04330 u. Find the energy released when decay changes Thorium-234 into Protactinium-234.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter34: Maxwell’s Equations And Electromagnetic Waves

Section: Chapter Questions

Problem 18PQ

See similar textbooks

Similar questions

dl L = U- RI dt Solve this equation for I(t) with I(0) =lo. What is I(t) as t approaches infinity?
pps51 please dont copy existing answers or i will dislike your answer thanks
q33333
Can you use a mass spectrometer to measure the mass of a proton? Can you use a mass spectrometer to measure the mass of a neutron?
Professor Edward Ney was the founder of infrared astronomy at the University of Minnesota. In his later years, he wore an artificial pacemaker. Always an experimentalist, Ney often held a strong laboratory magnet near his chest to see what effect it had on his pacemaker. Perhaps he was using the magnet to throw switches that control different modes of operation. An admiring student (without an artificial pacemaker) thought it would be fun to imitate this great man by holding a strong magnet to his own chest. The natural pacemaker of the heart (known as the sinoatrial node) carries a current of about 0.5 mA. Estimate the magnetic force exerted on a natural pacemaker by a strong magnet held to the chest. How do you think the student might have felt during the experiment? Explain your geometric assumptions. Hints: See Table 30.1 (page 941) to estimate the magnetic field, and assume the field is roughly uniform. Use Figure P30.58 to estimate the size of the sinoatrial node; your heart is about the size of your fist. FIGURE P30.58
CASE STUDY In Example 34.6 (page 1111), we imagined equipping 1950DA, an asteroid on a collision course with the Earth, with a solar sail in hopes of ejecting it from the solar system. We found that the enormous size required for the solar sail makes the plan impossible at this time. Of course, there is no need to eject such an object from the solar system: we only need to change the orbit. A much more pressing problem is Apophis, a 300-m asteroid that may be on a collision course with the Earth and is due to come by on April 13, 2029. It is unlikely to hit the Earth on that pass, but it will return again in 2036. If Apophis passes through a 600-m keyhole on its 2029 pass, it is expected to hit the Earth in 2036. causing great damage. There are plans to deflect Apophis when it comes by in 2029. For example, we could hit it with a 10- to 150-kg impactor accelerated by a solar sail. The impactor is launched from the Earth to start orbiting the Sun in the same direction as the Earth and Apophis. The idea is to use a solar sail to accelerate the impactor so that it reverses direction and collides head-on with Apophis at 8090 km/s and thereby keeps Apophis out of the keyhole. Consider the momentum in the impactors orbit (Fig. P34.75) when the solar sail makes an angle of = 60 with the tangent to its orbit. Current solar sails may be about 40 m on a side, but the hope is to construct some that are about 160 m on a side. Estimate the impactors tangential acceleration when it is about 1 AU from the Sun. Keep in mind that the sail is neither a perfect absorber nor a perfect reflector, and a heavier impactor would presumably be equipped with a larger sail. Dont be surprised by what may seem like a very small acceleration. FIGURE P34.75
A substance with a relative dielectric permittivity of E=3.80 but a magnetic permeability of μ-μo, the same as vacuum. What is the propagating speed of light in this medium? Assume that c = = 3.00 × 108 [m/s] is the vacuum-bound speed of light. C. 3.00 x 108 [m/s] A. 0.79 × 10³ [m/s] B. 1.54 × 10³ [m/s] D. 5.85 × 108 [m/s]
The electric flux through a dielectric material at a time t is ¢E(t) = (8.76 × 10³V m/s*) · tª.. What is the dielectric constant k of the material if the displacement current has a magnitude 12.9 pA at a time t = 26.1 ms? O A. 2339 ОВ. 2.339 О С. 9360 O D. 9.360
28.37 A closed curve encircles several conductors. The line integral $B.di around this curve is 3.83 x 10 4T m. (a) What is the net cur- rent in the conductors? (b) If you were to integrate around the curve in the opposite direction, what would be the value of the line integral? Explain.
A velocity selector in a mass spectrometer uses a 0.11 T magnetic field. a. What electric field strength is needed to select a speed of 4.24 ✕ 106 m/s? V/m b. What is the voltage between the plates if they are separated by 1.00 cm? kV
Bacteria can be identified by using a time-of-flight mass spectrometer to measure their chemical composition. First, a very short laser pulse vaporizes and ionizes a bacterial sample. The positive ions are accelerated, in vacuum, through a -15 kV potential difference, and then they travel at constant speed through a 1.5-m-long drift tube to a detector that records their arrival times. An ion's time of flight depends on its mass, so a record of the arrival times can be used to determine the masses of the biomolecules that were released from the bacteria. Each type of bacteria has a unique set of proteins with different masses, so the mass spectrum is a fingerprint for identifying bacteria. Part A What is the mass in kDa of an ionized protein that is detected 51 us after the laser pulse? You can assume that the protein is singly ionized (g = +e) which is mostly true in practice. You can also neglect the time needed to accelerate through the potential difference because it is very small…
097-00001 License Plate CA 9JMJ386 hond-San Rafael Bridge Plaza RSR Lane 02 Date 11/21/23 utlon Transaction Details Make MAZD Time 10:36 Returned Toll Amount Penalty Amount $17.00 $5.00 Check Fee (if applicable): Total Amount Due: se s be a se a te e te te te se s tem po ¿рәәds әлем әу] s! неум 'ш эт Total $22.00 50.00 $22.00