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
RSB [31]
3 years ago
15

Plsss help jdybgdykhbskyhdigbjs

Physics
2 answers:
Marta_Voda [28]3 years ago
7 0
<h2>ANSWER: </h2><h2>_____________________________________</h2><h2>TYPES OF CHEMICAL REACTIONS:</h2>

There are two types of Reactions,

<h3>Endothermic Reactions: </h3>

Endothermic reactions are the type chemical reaction in which the reactants absorb heat energy from the surroundings. The energy of reactants is more than the energy of product

<h3>Exothermic Reactions: </h3>

Exothermic reactions are the type of chemical reactions in which release of energy takes place in the form of heat or light. In an exothermic reaction, energy is released. The energy of the products is less than the energy of the reactants.

<h2>_____________________________________</h2><h3 /><h3>In Question number 5,</h3>

The key word is "RELEASE". The reaction in which energy is released is the Exothermic reaction thus the Option B that is EXOTHERMIC REACTION is correct.

<h2>_____________________________________</h2><h3 /><h3>In Question number 6</h3>

It is asking that which process stores the energy that means it is asking which process undergoes endothermic reaction. The answer is Option C that is PHOTOSYNTHESIS is correct.

<h3>__________________________________________________</h3><h3>WHY PHOTOSYNTHESIS?</h3>

Because, sunlight is being absorbed during the reaction and according to the definition of endothermic reaction if heat is being absorbed it is termed as an endothermic reaction.

<h3>__________________________________________________</h3><h3 /><h3 />
svlad2 [7]3 years ago
4 0

Answer:

Since the other person answered i am using this for points because i have like -115 so thank you so so much have a great day!

Explanation:

You might be interested in
Suppose you buy a pair of shoes. They come in a box. You take the shoes
Olin [163]

Answer:

unchanged

Explanation:

the box itself has same mass and volume with or without the shoes

4 0
3 years ago
A sound wave traveling at STP has a period of .0023 seconds. The wavelength of this sound is closest to
agasfer [191]

Answer: 3

Wavelength = 0.76m

Explanation:

When sound wave is travelling at standard temperature and pressure ( STP), its speed will be equal to normal speed of sound which is equal to 331 m/s

Given that the period of the wave is 0.0023 seconds.

Wave speed = wavelength/period

Substitute the wave speed and the period to obtain wavelength

331 = wavelength/0.0023

Cross multiply

Wavelength = 331 × 0.0023

Wavelength = 0.7613 metre

The wavelength of this sound is closest to 0.76 m

4 0
4 years ago
Plz help me with this sheet?
SOVA2 [1]
More detail pic plz?
5 0
3 years ago
Read 2 more answers
How many states in the world are there?​
aliya0001 [1]

Answer:

There are 193 member states. The UN recognises 206 states altogether.

Explanation:

8 0
3 years ago
A 12,000 kg railroad car is traveling at 2 m/s when it strikes another 10,000 kg railroad car that is at rest. If the cars lock
Degger [83]

Answer:

The final speed of the railroad car

V= 1.14 \frac{m}{s}

Explanation:

v_{1}=2.1\frac{m}{s} \\m_{1}=12000kg\\v_{2}=0\frac{m}{s} \\m_{2}=10000kg \\v_{t}=?

m_{1}*v_{1}+m_{2}*v_{2}= (m_{1}+m_{2})*v_{t}\\v_{t}=\frac{m_{1}*v_{1}}{(m_{1}+m_{2})} \\v_{t}=\frac{12000kg*2.1\frac{m}{s} }{(12000+10000)kg} \\v_{t}=1.14 \frac{m}{s}

That's the final speed of the both railroad car

4 0
3 years ago
Other questions:
  • What is the kinetic energy of a 2600kg car traveling 24m/s?
    5·1 answer
  • Jed drops a 18 kg box off of the Eiffel tower. After 6.1 seconds, how fast is the box moving (neglect air resistance.)
    14·2 answers
  • An oscillator with angular frequency of 1.00 s-1has initial displacement of 1.00 m and initial velocity of 1.72 m/s. What is the
    15·1 answer
  • A 3-m-high, 8.5-m-wide rectangular gate is hinged at the top edge at A and is restrained by a fixed ridge at B. Determine the hy
    6·1 answer
  • Two loudspeakers in a 20c room emit 686 hz sound waves along the x-axis.a. if the speakers are in phase, what is the smallest di
    6·2 answers
  • Can someone please do this quick
    13·1 answer
  • 1. What are the approximate calorie needs of a
    6·1 answer
  • If the car falls down the side of the cliff, what is happening to the gravitational potential energy of the falling car? (Assume
    10·1 answer
  • PLEASE HELP!!!
    11·2 answers
  • 1)name x and y
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!