The frequency of the applied RF signal used to excite spins is directly proportional to the magnitude of the static magnetic field used to align the spins, with proportionality constant 5 hz/T. If the strength of the applied field is known to be 20 T plus or minus 3 T, which of the following correctly describes the uncertainty in the INVERSE frequency (1/frequency)?
A. 3/2000s
B. 3/5s
C. 1/15s
D. 1/4
Answers: 1
![\Delta [\frac{1}{w} ]= \frac{3}{2000} \ s](/tpl/images/0681/8722/df9e9.png)
is frequency ![\Delta B = \frac{k }{[\frac{1}{w}^]^2 } \Delta [\frac{1}{w} ]](/tpl/images/0681/8722/0d678.png)
![\Delta [\frac{1}{w} ] = \frac{\Delta B}{k [\frac{1}{w^2} ]}](/tpl/images/0681/8722/f6c14.png)
![\Delta [\frac{1}{w} ]= \frac{\Delta B}{k (B)^2 }](/tpl/images/0681/8722/075bd.png)
![\Delta [\frac{1}{w} ]= \frac{3}{5 (20)^2 }](/tpl/images/0681/8722/cf848.png)
Other questions on the subject: Physics
Physics, 22.06.2019 06:30, keidyhernandezm
Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults
Answers: 1
Physics, 22.06.2019 14:40, sherlinejules1
You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.
Answers: 2
Physics, 22.06.2019 14:40, hastephens03
According to valence bond theory, which orbitals overlap in the formation of the bond in hf according to valence bond theory, which orbitals overlap in the formation of the bond in hf 2s on h and 2p on f 1s on h and 2s on f 1s on h and 1p on f 1s on h and 2p on f 1s on h and 3p on f
Answers: 3
Physics, 22.06.2019 16:30, xxaurorabluexx
An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?
Answers: 1
Do you know the correct answer?
The frequency of the applied RF signal used to excite spins is directly proportional to the magnitud...
Questions in other subjects:
Mathematics, 23.07.2021 15:30
Physics, 23.07.2021 15:30
Social Studies, 23.07.2021 15:30
Physics, 23.07.2021 15:30
