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 59 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
:D TYSM

yeungji

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

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

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

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.

Furchgott's discovery that endothelial cells produce a vasodilating substance. Furchgott's discovery that endothelial cells produce a vasodilating substance.
The relationship between air temperature and two measures of water vapour saturation of air. The relationship between air temperature and two measures of water vapour saturation of air.
A typical two-step ECT circuit showing that when the coolant temperature is low, the PCM applies a ... A typical two-step ECT circuit showing that when the coolant temperature is low, the PCM applies a ...
This five-wire mass air flow sensor consists of a metal foil sensing unit, an intake air temperature ... This five-wire mass air flow sensor consists of a metal foil sensing unit, an intake air temperature ...
Apply the substance to the client’s posterior leg with one smooth stroke. To stabilize the ... Apply the substance to the client’s posterior leg with one smooth stroke. To stabilize the ...
The three states of matter: solid, liquid, and gas. The three states of matter: solid, liquid, and gas.
Video: Random alignment at Metaphase I Animation

For a complete list of videos, visit our video library