1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Molodets [167]
3 years ago
14

I NEED HELP PLEASE WITH THESE QUESTIONS :

Chemistry
2 answers:
Vesna [10]3 years ago
8 0

Answer:

They are all thermal energy.

Explanation:

They all use heat.

Luda [366]3 years ago
7 0

Answer:

1. Lighting a match uses chemical energy.

2. The evaporation of water is created from thermal energy.

3. Cooking an egg uses thermal energy to cook.

2. The condensation of water from vapor in the air uses thermal energy.

Explanation:

1. Lighting a match uses chemical energy which is then converted into thermal energy.

2. Evaporating water can be cause by hot items like the Sun which plays the most important role in our water cycle by evaporating water.

3. Cooking an egg uses thermal energy because it take the heat away from the object used to cook with it.

4. The condensation of water from vapor in the air is from cool surfaces.

You might be interested in
Do gases have mass and weight?​
slega [8]

Answer:

yes

Explanation:

they di because they have mass and wait

7 0
3 years ago
What are the charges on barium and fluorine in barium fluoride? 1 point Captionless Image Barium is +2 and fluorine is -2. Bariu
user100 [1]

Answer: Barium is +2, Fluorine is -1

Explanation:

The charge of barium is +2, and the charge of fluorine is -1. You can determine this from the periodic table groups.

The formula for barium fluoride is thus BaF2.

8 0
3 years ago
Which structural zones exist within the core compositional zone?
Art [367]

The Earth's structural zones (S-Zones) are the lithosphere, asthenosphere, mesosphere, inner core, and outer core.

C-Zone                 S-Zone                  What are they like?

Core                      Inner Core           Found about 2,900 kilometers below

the Earth's surface. It is about 2,300 kilometers thick

6 0
3 years ago
What statement best describes the compresibility of a gas?​
Misha Larkins [42]

Answer: A gas molecules have high kinetic energy due to which they have move rapidly from one place to another

Explanation:

6 0
3 years ago
Pulses A, B, C, and D all travel at 10 m/s on the same string but in opposite directions. The string is depicted at time t=0 in
Anit [1.1K]

(a) The displacement of point P at time t=0.10s is determined as +2cm.

(b) The displacement of point P at time t=0.20s is determined as -2cm.

<h3>What is displacement?</h3>

Displacement is the change in position of an object. It is obtained from the product of velocity and time of motion.

x = vt

<h3>Displacement of the waves after 0.1 s</h3>

x = 10 m/s x 0.1 s = 1 m

Each wave will travel 1 m to the right or to the left, depending on the initial direction.

  • wave B from left will stop at point 0 m
  • wave A from left will stop at point -1 m
  • wave C from right will stop at point 0 m
  • wave D from right will stop at point + 1 m

wave B and C superimposed and the displacement will be between A and D.

Amplitude of A = - 2cm

Amplitude of D = + 4cm

Displacement of point P = 4 cm - 2 cm =  2cm

<h3>Displacement of the waves after 0.2 s</h3>

x = 10 m/s x 0.1 s = 2 m

Each wave will travel 2 m to the right or to the left, depending on the initial direction.

  • wave B from left will stop at point 1 m
  • wave A from left will stop at point 0 m
  • wave C from right will stop at point -1 m
  • wave D from right will stop at point 0 m

Displacement of point P = (amplitude B + amplitude C) + (amplitude A + amplitude D)

Displacement of point P= (2cm - 2cm) + (2 cm - 4cm)= -2cm

Learn more about displacement here: brainly.com/question/2109763

#SPJ1

8 0
2 years ago
Other questions:
  • If this cup of iced tea sits for a while on your kitchen table what will happen to its thermal energy
    10·1 answer
  • Complete the following table. Tell if the molecule is polar or nonpolar, draw the Lewis dot structure for the molecule, tell wha
    10·2 answers
  • Indicate phase of matter in chemical equation
    10·1 answer
  • Calcium hydroxide, Ca(OH)2, is neutralized by hydrochloric acid, HCl, and the products are calcium chloride and water. You have
    7·1 answer
  • 4. You have a very concentrated solution (12 M) of potassium chloride (KCI). You need it to be at the least concentration possib
    10·1 answer
  • What would happen to the block if it had a density of 0.500 kg/L and was placed in the same 100.0 L tank of water?
    14·2 answers
  • Write a balanced equation for the dissolution of sodium carbonate (Na2CO3) in water. Find the number of moles of Na+ produced wh
    7·1 answer
  • What is a pure substance​
    5·1 answer
  • The label on a soft drink bottle gives the volume in two units: 2.0 L and 67.6 fl oz. Use this information to derive a conversio
    14·1 answer
  • What is culture?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!