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
belka [17]
3 years ago
5

The law of conservation of mass states that in a chemical reaction matter is not created or destroyed true or false

Physics
1 answer:
lisov135 [29]3 years ago
4 0
True it only changes form. Like when water evaporates goes from liquid to a gas and is not destroyed.
You might be interested in
A 80 mW laser beam is polarized horizontally. It then passes through two polarizers. The axis of the first polarizer is oriented
inn [45]

The E(incident) for the first  polarizer is E(incident)=-76.1930384332

The E(incident) for the second  polarizer is E(incident)=12.340115991

<u>Explanation:</u>

<u>Solving the problem:</u>

<u>Given</u>

Transmitted data = 80 mW

First polarizer= 30 degree

Second polarizer= 60 degree

We have the formula,

E (transmitted) = E (incident)cos()

<u>1. Through the first polarizer</u>

E (transmitted) = E (incident)cos()

80=E(incident) cos(60 degree)     (according to law subtract the given degree with 90 degree).

Then,

E(incident)=E(transmitted) cos()

E(incident) =80×cos 60 degree

E(incident)=-76.1930384332

The E(incident) for the first  polarizer is E(incident)=-76.1930384332

<u>2. Through the first polarizer</u>

We have the formula,

E (transmitted) = E (incident)cos()

80=E(incident) cos(30 degree)     (according to law subtract the given degree with 90 degree).

Then,

E(incident)=E(transmitted) cos()

E(incident) =80×cos 30 degree

E(incident) =12.340115991

The E(incident) for the second  polarizer is E(incident)=12.340115991

<u></u>

4 0
3 years ago
Given: Saturated air changes temperature by 0.5°C/100 m. The air is completely saturated at the dew point. The dew point has bee
erma4kov [3.2K]

Answer:

Explanation:

Given

saturated air temperature by 0.5^{\circ}C/100 m

Dew point temperature is given by t=2^{\circ}C

Dew point is defined as the temperature after which air no longer to uphold the water vapor fuse with it and some water vapor may condense to a liquid.

air continues to rise for 1400 m

i.e. change in temperature would be \Delta t =\frac{0.5}{100}\times 1400=7^{\circ}C

Final temperature t_f

t_f+\Delta t=t

t_f=2-7=-5^{\circ}C

3 0
3 years ago
What is the mathematical relationship between voltage, resistance, and current?
Alex73 [517]
The formula for Voltage is V = IR or in words
voltage equals current times the resistance
5 0
3 years ago
When an object with a negative charge is moved from point A to point B through an external electrical field, it gains electrical
Sergio039 [100]

Explanation:

As per the problem,

           \Delta U = (V_{B} - V_{A})(-q) > 0

When q > 0 then -q is a negative charge . Since, change in potential energy (\Delta U) increases.

or,     (V_{A} - V_{B})q > 0

or,      V_{A} > V_{B}

Therefore, both positive and negative charge will move from V_{A} to V_{B} and as V_{B} < V_{A} so both of them move through a negative potential difference.

Thus, we can conclude that the true statements are as follows.

  • The positively charged object moves through a negative potential difference between A and B (that is, VB - VA < 0).
  • The negatively charged object moves through a negative potential difference between A and B (that is, VB - VA < 0).      
4 0
3 years ago
The chemical formula for glucose is C6H12O6. Therefore, four molecules of glucose will have carbon atoms, hydrogen atoms, and ox
Gekata [30.6K]
If there are 4 molecules of glucose, there will be 24 carbon, 48 hydrogen, and 24 oxygen.
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which is the goal of science?
    14·2 answers
  • What is the net force acting on a 0.15 kg hockey pick accelerating at a rate of 12 m/s
    10·1 answer
  • Think about lifestyle choices that you make on a daily basis. Choose at least four lifestyle choices which you could change to i
    9·2 answers
  • A box is sitting on the ground and weighs 100 kg and the coefficient of friction is 0.23. Is it easier to push by applying the f
    7·1 answer
  • In a region of space, a magnetic field points in the +x-direction (toward the right). Its magnitude varies with position accordi
    14·1 answer
  • The _____ is the process scientists use to conduct research, which includes a continuing cycle of exploration, critical thinking
    13·2 answers
  • Which diagram shows energy transformation in a moving LRT?
    6·2 answers
  • In projectile mtion, what is the x-component of the initial velocity? if V= Vi = 100 m/s and the angle with horizontal axis Θ =
    12·2 answers
  • Last week Tasha and Amy got into a fight at school. Tasha is accusing Amy of talking behind her back. Since the fight, Tasha has
    9·2 answers
  • How long must a pendulum be to have a period of 4.6 5 on Neptune, where g = 11.15 m/s?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!