Question

In: Physics

1. A typical α-decay from a parent nucleus AZX may be indicated as : Group of...

1. A typical α-decay from a parent nucleus AZX may be indicated as :

Group of answer choices

AZX → (A−4)(Z − 2) Y + 42He

AZX → (A+4)(Z+2) Y + 22He

AZX → (A−4)Z Y + 42He

AZX → (A−4)(Z+2) Y + 42He

2. An element of atomic number 83 in a relatively higher energy state decays radioactively to an element of atomic number 84 with lower energy level. This must include

Group of answer choices

an α emission

a β emission

a γ emission

a β & γ emission

3. The half- life of radium-226 is 1.6 × 103 . If a sample initially contains 3.0 × 1016 such nuclei, what is the number of radioactive radium-226 nuclei remaining after 4.8 × 103 years?

Group of answer choices

2.25 × 1012

3.75 × 1016

2.2 × 1016

3.75 × 1015

Solutions

Expert Solution


Related Solutions

Q.3 (a) Show that in alpha decay from a stationary parent nuclide that the conservation of...
Q.3 (a) Show that in alpha decay from a stationary parent nuclide that the conservation of energy and momentum lead to a relation between the decay energy for the nuclear reaction and the kinetic energy gained by the alpha particle, KE, given by Q = KE(1+ 1m(daughter )   × m(42He)) What is the velocity of the alpha particle emitted in the decay of 238U?. Given Q = 4.28 MeV, mα = 4.0015u, mdaughter = mthorium = 233.99409u 10 (b) Draw...
Using the following output and α = 0.05, test that the mean for group 1 is...
Using the following output and α = 0.05, test that the mean for group 1 is greater than the mean for group 2.                  group               n          mean                sample std dev             1                    10        4.5                   0.9             2                    10        3.5                   0.9
1 Which of the following is not a typical product of ETS? Group of answer choices...
1 Which of the following is not a typical product of ETS? Group of answer choices a NAD+ b FAD c CO2 d H2O 2 Group of answer choices a membrane lipids are in the cis conformation b the number of carbons composing the tails are an uneven number c proteins are embedded within only one membrane leaflet d the lipid bilayer is “fluid” in regard only in regard to the protein composition 3 The reaction center chlorophyll of photosystem...
On January 1, 2020, Penguin Corporation, the parent corporation of a consolidated group of corporations filing...
On January 1, 2020, Penguin Corporation, the parent corporation of a consolidated group of corporations filing a calendar year consolidated tax return, acquires all of the stock of Steeler corporation for $3 million. In 2020, Steeler Corporation earns $500,000 of taxable income, it earns $20,000 of tax-exempt interest income, it pays Penguin corporation a dividend of $400,000. Steeler pays Penguin an amount equal to its stand-alone income tax liability for 2020, computed at the statutory tax rate of 21%. Compute...
5. Now cross two of the heterozygous F1 offspring from question #2. Parent #1 Parent #2...
5. Now cross two of the heterozygous F1 offspring from question #2. Parent #1 Parent #2 Y y Y YY Yy y Yy yy What is the genotypic ratio of the offspring in Question 5? 25%(YY):50%Yy:25%(yy) What is the phenotypic ratio of the offspring in Question 5? 3(Yellow):1(Green) 6. Consider the resulting ratio of crossing the two heterozygous pea plants in question #5. We will use this ratio in a short activity exploring probability. Keep in mind that crossing two...
Bank Reconciliation and Entries The cash account for Brentwood Bike Co. at May 1 indicated a...
Bank Reconciliation and Entries The cash account for Brentwood Bike Co. at May 1 indicated a balance of $14,350. During May, the total cash deposited was $73,130 and checks written totaled $67,900. The bank statement indicated a balance of $24,790 on May 31. Comparing the bank statement, the canceled checks, and the accompanying memos with the records revealed the following reconciling items: Checks outstanding totaled $11,040. A deposit of $8,990, representing receipts of May 31, had been made too late...
The cash account for Brentwood Bike Co. at May 1, indicated a balance of $36,016. During...
The cash account for Brentwood Bike Co. at May 1, indicated a balance of $36,016. During May, the total cash deposited was $138,030, and checks written totaled $138,571. The bank statement indicated a balance of $43,940 on May 31. Comparing the bank statement, the canceled checks, and the accompanying memos with the records revealed the following reconciling items: A. Checks outstanding totaled $6,281. B. A deposit of $1,796 representing receipts of May 31, had been made too late to appear...
The cash account for Brentwood Bike Co. at May 1 indicated a balance of $34,250. During...
The cash account for Brentwood Bike Co. at May 1 indicated a balance of $34,250. During May, the total cash deposited was $140,300, and checks written totaled $138,880. The bank statement indicated a balance of $43,525 on May 31. Comparing the bank statement, the canceled checks, and the accompanying memos with the records revealed the following reconciling items: Checks outstanding totaled $6,440. A deposit of $1,850 representing receipts of May 31 had been made too late to appear on the...
The cash account for Brentwood Bike Co. at May 1 indicated a balance of $13,480. During...
The cash account for Brentwood Bike Co. at May 1 indicated a balance of $13,480. During May, the total cash deposited was $67,120 and checks written totaled $62,320. The bank statement indicated a balance of $22,750 on May 31. Comparing the bank statement, the canceled checks, and the accompanying memos with the records revealed the following reconciling items: Checks outstanding totaled $10,140. A deposit of $8,260, representing receipts of May 31, had been made too late to appear on the...
The cash account for Brentwood Bike Co. at May 1, indicated a balance of $34,250. During...
The cash account for Brentwood Bike Co. at May 1, indicated a balance of $34,250. During May, the total cash deposited was $140,300, and checks written totaled $138,880. The bank statement indicated a balance of $43,525 on May 31. Comparing the bank statement, the canceled checks, and the accompanying memos with the records revealed the following reconciling items: A. Checks outstanding totaled $6,440. B. A deposit of $1,850 representing receipts of May 31, had been made too late to appear...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT