Question

In: Chemistry

1,All of the following are true concerning nuclear fission except a) Uranium is typically split into...

1,All of the following are true concerning nuclear fission except

a) Uranium is typically split into smaller atoms

b) Nuclear reactors are used to make electricity

c) The energy involved can be calculated using E = mc2

d) The reaction involved is called a thermonuclear reaction

e) During fission there is a change in mass called the mass defect

2,

All of the following are true concerning nuclear fusion except

a)Typically hydrogen is fused together to form helium
b) The amount of hydrogen needed to achieve this is called the critical mass
c) At this time there have been no economically successful fusion reactors created
d )Fusion requires extremely high temperatures
e) Nuclear fusion is the process that powers the sun

Solutions

Expert Solution

------------------------------------------------------------------------------------------------------------------------------------------------------------------------


Related Solutions

In a nuclear fission reactor, each fission of a uranium nucleus is accompanied by the emission...
In a nuclear fission reactor, each fission of a uranium nucleus is accompanied by the emission of one or more highspeed neutrons, which travel through the surrounding material. If one of these neutrons is captured in another uranium nucleus, it can trigger fission, which produces more fast neutrons, which could make possible a chain reaction. However, fast neutrons have low probability of capture and usually scatter off uranium nuclei without triggering fission. In order to sustain a chain reaction, the...
Most of the energy released in nuclear fission is electrostatic. Suppose a uranium-236 nucleus (92 protons...
Most of the energy released in nuclear fission is electrostatic. Suppose a uranium-236 nucleus (92 protons and 236-92=144 neutrons), which is initially at rest, splits into two identical “daughter” nuclei each having 46 protons and 72 neutrons. (Protons and neutrons have the same mass, namely 1.67×10-27 kg.)(a) [15 pts.] Initially the two daughter nuclei are separated by 13×10-15 m. How fast will they be moving when they get very far apart?(b) [5 pts.] Fission products usually are not the same...
All of the following statements concerning deferred income taxes are true except: Group of answer choices...
All of the following statements concerning deferred income taxes are true except: Group of answer choices A) Differences in income calculated for financial reporting purposes and for tax reporting purposes are largely a result of the different goals of the two systems. B) Current and deferred tax liabilities are based on current tax rates and should not give consideration to changes in enacted tax rates. C) Temporary differences in financial reporting and tax reporting result in deferred taxes.
All of the following statements are true except:
  All of the following statements are true except: a. A portfolio may contain multiple programs and projects. b. A project manager has the discretion to make trade-offs in regard to which programs to pursue. c. A program manager has the discretion to make trade-offs in regard to which projects to pursue. d. Projects have a finite timeline, while programs may exist as long as the parent organization does. Which of the following is a financial analysis tool that an...
All of the following statements concerning cash basis are correct except 1 In general, income is...
All of the following statements concerning cash basis are correct except 1 In general, income is included in taxable income in the year in which it is actually received 2 Income is included in taxable income in the year in which it is constructively received if this precedes the year in which it is actually received 3 The cash basis taxpayer has the option of reporting taxable income in the year it is actually received or constructively received 4 Most...
1. Under the gold standard, all except one of the following are true. Which is not...
1. Under the gold standard, all except one of the following are true. Which is not true? Paper currency was convertible into gold at a fixed rate. A balance-of-payments deficit would result in a loss of gold. A balance-of-payments surplus would result in an inflow in gold. The money supply of any country was largely determined by flows of gold. A surplus country experienced a rise in its money supply and a drop in its price level. 2. Under fixed...
All of the following statements are true EXCEPT: 1. Elevating the ribs decreases the size of...
All of the following statements are true EXCEPT: 1. Elevating the ribs decreases the size of the thorax 2. when the diaphragm relaxes, it takes on a rounded dome - like shape 3. changes in the size of the thorax bring about inhalation and exhalation 4. When the diaphragm contracts, it pulls the floor of the thoracic cavity inferiorly 2. why do you think mucus production is especially important in the olfactory epithelium?
All of the following is always true about valuation date EXCEPT:
All of the following is always true about valuation date EXCEPT:a.The valuation date is the same as the date of the valuation report producedb.The valuation date should be specifically defined at the time of engagementc.Only information that is known or knowable as of the specific valuation date should be incorporated into a business valuationd.It is generally easiest if the valuation date coincides with the date of the company’s reported financial statements
All of the following are true of the new Form 7200 EXCEPT that it: May be...
All of the following are true of the new Form 7200 EXCEPT that it: May be used when the available credit exceeds the payroll tax liability, Replaces the Form 941 for the quarter in which it is used. Allows employers to claim a credit prior to filing Form 941. May be filed via fax.
All of the following statements regarding business ethics are true, except ________.
  11-All of the following statements regarding business ethics are true, except ________. * A-Ethics does not mean following the law B-It is unethical to generate toxic emissions C-It is ethical to pay a governmental official “off the books” to facilitate a transaction D-Ethics does not mean following the accepted cultures and norms   12-Which of the following is not a business stakeholder? * A-Governments B-Suppliers C-Lecturers D-Creditors   13-Taking advantage over people who are unaware of their purchasing rights...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT