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

Author Question: When a solid melts, A) the temperature of the substance increases. B) the temperature of the ... (Read 58 times)

WWatsford

  • Hero Member
  • *****
  • Posts: 539
    • Biology Forums!
on: Jul 29, 2018
When a solid melts,
 
  A) the temperature of the substance increases.
  B) the temperature of the substance decreases.
  C) heat energy leaves the substance.
  D) heat energy enters the substance.

Question 2

Two in-phase loudspeakers are some distance apart. They emit sound with a frequency of 1536 Hz. You move between the speakers, along the line joining them, at a constant speed of 2.8 m/s.
 
  What beat frequency do you observe? The speed of sound in the room is 330 m/s.
  A) 13 Hz
  B) 431 Hz
  C) 26 Hz
  D) 4.7 Hz
  E) 118 Hz


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

quynhmickitran

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: C


WWatsford

  • Member
  • Posts: 539
Reply 2 on: Jul 29, 2018
Gracias!

softEldritch

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i Alternative forms of surgeries involving the uterus, ovaries, and fallopian tubes. The solid lines i
Measuring Axillary Temperature Measuring Axillary Temperature
Using an ice bath to test the fuel temperature sensor. Using an ice bath to test the fuel temperature sensor.
The averaging of an auditory evoked potential. Averaging increases the signal-to-noise ratio. The averaging of an auditory evoked potential. Averaging increases the signal-to-noise ratio.
Air-Temperature Data Air-Temperature Data
Water Helps Regulate Your Body Temperature Water Helps Regulate Your Body Temperature
Video: How do the different types of chromatography work? (No Audio)

For a complete list of videos, visit our video library