This topic contains a solution. Click here to go to the answer

Author Question: Americans combined drive about 4.0109 miles per day and their vehicles get an average of 20 miles ... (Read 15 times)

trevg

  • Full Member
  • ***
  • Posts: 160

Question 1

Iron has a density of 7.87 g/cm3.  What mass of iron would be required to cover a football playing surface of 120 yds × 60 yds to a depth of 1.0 mm? (1 inch = 2.54 cm; 1 lb = 453.6 g)

◦ 6.4 × 103 lb
◦ 6.4 × 104 lb
◦ 1.0 × 105 lb
◦ 4.7 × 107 lb
◦ 4.7 × 108 lb

Question 2

Americans combined drive about 4.0×109 miles per day and their vehicles get an average of 20 miles per gallon of fuel used.  For each 1 kg of gasoline that is burned, about 3.0 kg of CO2  are produced.  How many kilograms of CO2 are emitted into the atmosphere each day by cars in the U.S.?  One gallon of gas weighs about 3.5 kg.

◦ 2.1 × 109 kg
◦ 8.4 × 1011 kg
◦ 1.7 × 108 kg
◦ 93 kg
◦ none of these


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by trevg on Nov 5, 2023

hvhf4k+549qz8f218jyo@shar

  • Full Member
  • ***
  • Posts: 174
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly




trevg

  • Member
  • Posts: 160
Reply 2 on: Nov 5, 2023
:D TYSM


juliaf

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

For a complete list of videos, visit our video library