This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Are the laws of energy conservation of energy, and 2nd law of thermodynamics known for certain to be ... (Read 293 times)

sam.t96

  • Hero Member
  • *****
  • Posts: 570
on: Jul 29, 2018
Are the laws of energy conservation of energy, and 2nd law of thermodynamics known for certain to be true?
 
  A) No; in fact these laws are known to be violated at sufficiently high speeds, small distances, and large distance.
  B) No, because all scientific laws are tentative.
  C) No, for both of the above reasons.
  D) Yes, because despite repeated checking they have never been found to be false.
  E) Yes because, unlike some of the other laws, these laws are true by logical deduction from a priori premises.

Question 2

The torque required to turn the crank on an ice cream maker is 4.50 N  m. How much work does it take to turn the crank through 300 full turns?
 
  A) 2120 J B) 2700 J C) 4240 J D) 1350 J E) 8480 J


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

emilymalinowski12

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

E


sam.t96

  • Member
  • Posts: 570
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

komodo7

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Medication errors are three times higher among children and infants than with adults.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Examples of energy Examples of energy
Ammonium as an energy source for chemoautotrophic bacteria in soil. Ammonium as an energy source for chemoautotrophic bacteria in soil.
Conservation of Angular Momentum Conservation of Angular Momentum
Ancient drawing of energy channels and acupoints. Ancient drawing of energy channels and acupoints.
Ocean Energy Ocean Energy
Conservation of momentum lab Conservation of momentum lab
Video: Secondary and tertiary levels of protein structure Animation

For a complete list of videos, visit our video library