Author Question: In what direction did the heat flow in this experiment? ... (Read 17 times)

Chloeellawright

  • Hero Member
  • *****
  • Posts: 588
In what direction did the heat flow in this experiment?

Question 2

A battery has some internal resistance. Can the potential difference across the terminals of the battery be equal to its emf?
  1.No.
  2.Yes, if the battery is absorbing energy by electrical transmission.
  3.Yes, if more than one wire is connected to each terminal.
  4.Yes, if the current in the battery is zero.
  5.Yes; no special condition is required.



juwms

  • Sr. Member
  • ****
  • Posts: 337
Answer to Question 1

Heat flowed from the water (hot) to the ice (cold).

Answer to Question 2

4



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.

For a complete list of videos, visit our video library