Author Question: Consider a student whose mass is 70. kg (he weighs 154. lb). If all his mass were converted to ... (Read 25 times)

kamilo84

  • Sr. Member
  • ****
  • Posts: 495
Consider a student whose mass is 70. kg (he weighs 154. lb). If all his mass were converted to energy, this energy could light a 100. watt lamp for how long?
 
  What will be an ideal response?

Question 2

Based on its distance from the Sun and the amount of sunlight absorbed by its surface, calculations predict the global average temperature of the Earth would be
 
  A) exactly the same as it is measured to be today
  B) below the freezing point of water
  C) above the boiling point of water
  D) close to the freezing point of water



bubulittle310@msn.cn

  • Sr. Member
  • ****
  • Posts: 281
Answer to Question 1

6.3  1016 s = 2.0 billion years

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

For a complete list of videos, visit our video library