The electric potential difference AV, also called voltage, is expressed in terms of the electric field as follows AV = Edr where, a is the initial position and b is the final position. If an electric field in a region in space is defined as E= - 2Br2 where B is just a constant without an arbitrary value. What is the electric potential difference from position 0 to R? 1 AV = BR3 AV = BR3 O AV = - BR3 O AV = Br 3 O Av = BR? 2 O AV = (1– BR²)aR 1 ΔV=-을(1-BlaR3 3. O AV = -(1- B)aR³ 1 O AV = -Br3 AV =

In preparation for an MRI scan, why are patients advised to remove eyeglasses, watches, jewelry, and other metal objects?

a) What is the role of electrical forces in nuclear fission? b) What is the role of a neutron in nuclear fission?

It has become popular for some people to have yearly whole-body scans (CT scans, formerly called CAT scans) using x rays, just to see if they detect anything suspicious. A number of medical people have recently questioned the advisability of such scans, due in part to the radiation they impart. Typically, one such scan gives a dose of 12 mSv, applied to the whole body. By contrast, a chest x ray typically administers 0.20 mSv to only 5.0 kg of tissue. How many chest x rays would deliver the same total amount of energy to the body of a 75 kg person as one whole-body scan?

Would you rather be exposed to 5 rads of alpha particles or 10 rads of beta particles? why?

why did you just get rid of the 10-3 and what is mor

Don't use : Ug= mgh please.

Cs-137 produces beta-minus particles. What types of interaction are likely to occur if a Cs-137 source is shielded in glass? In lead?

From the following data for the first-order gas- phase isomerization of CH3 NC at 215 °C, calculate the first-order rate constant and half-life for the reaction: Time (s) Pressure CH3 NC (torr) 4 Part A Calculate the first-order rate constant. Express your answer using three significant figures. 0 510 2000 345 5000 192 8000 107 12000 49 15000 27.3 Part B k ΜΕ ΑΣΦ Submit Request Answer 0 ? Calculate the half-life. Express your answer using three significant figures. ΑΣΦΑ Ο ΑΣΦ 1/2 ? 8-1 S

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