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
balu736 [363]
3 years ago
12

A student observes a chemical reaction.

Physics
2 answers:
zvonat [6]3 years ago
8 0
The balanced equation is 4Al + 3O2 —> 3Al2O3
ankoles [38]3 years ago
4 0

Answer:4Al + 2O2 --> 3Al2O3

Explanation:THIS IS YOUR ANSWER

You might be interested in
Middle adulthood marks the time period in which some adults face the fabled midlife crisis. What exactly is that? Do you think y
MariettaO [177]

<span>The middle life crisis occurs for men at age of 39 and for women at age of 44. At this age, people start realizing that they are getting older and experience some physical changes which seem distressful for them.</span>

<span> It affects the sense of accomplishment and progress in career. Due to a midlife crisis, people start engaging in activities to cope with the reality such as wearing clothes that are fashionable, dating someone etc. Yes, I think I will also go through one because it happens with everyone in this age.  It can be avoided by accepting the fact that these changes are reality and everyone have to face it one day.</span>

6 0
3 years ago
What is the difference between muscular endurance and muscular strength? A B or C
Galina-37 [17]

Answer:

Muscular endurance is how many times you can move a weight without getting tired.

Muscular strength is the amount force you can put out.

7 0
3 years ago
Write down Newton's second law in terms of momentum and acceleration. Write down this law in the form of differential equation (
svetoff [14.1K]

Explanation:

According to Newton's second law of motion, the rate of change of momentum is directly proportional to the applied unbalanced force. The mathematical expression is given by:

F=\dfrac{d(mv)}{dt}

Where

F is the applied force

m is the mass of the object

v is the velocity with which it is moving

F=m\dfrac{dv}{dt}

Momentum of a particle is given by the product of mass and velocity as :

p=mv

Hence, this is the required solution.

3 0
2 years ago
What provides the force on the person in the passenger seat?
podryga [215]

The forces that make a passenger speed up, slow down, or
turn a curve are the same forces that have the same effect
on the driver and anybody else in the car.

-- Speeding up . . .

              the back of the seat
              friction between the car seat and the seat of your pants

-- Slowing down . . .

              the seat belt
              friction between the car seat and the seat of your pants

-- Turning away from a straight line . . .
   
              the seat belt
              friction between the car seat and the seat of your pants
              the door, or whatever or whomever you're leaning against

6 0
3 years ago
Your current exam mean is 97.2. if you receive a 99 on the next exam, this will have the effect of ______.
GarryVolchara [31]

If your current exam mean is 97.2. and you receive a 99 on the next exam, then this will have the effect of increasing the mean.

<h3>What is the mean?</h3>

In statistics, the mean is an average value used to calculate when taking different measurements, which can be fundamental to collecting statistically significant information.

In conclusion, if your current exam mean is 97.2. and you receive a 99 on the next exam, then this will have the effect of increasing the mean.

Learn more about the average mean here:

brainly.com/question/20118982

#SPJ1

8 0
1 year ago
Other questions:
  • How to find instantaneous velocity physics?
    15·1 answer
  • Deposits of gold can be found in the deep ocean. Please select the best answer from the choices provided T F
    13·2 answers
  • When a pair of balanced forces acts on an object, the net force that results is
    10·2 answers
  • Explain what happens to particles in diffusion. What causes diffusion?
    6·2 answers
  • A 6,000 kg train car is moving to the right at 10 m/s and connects to a 4,000-kg train car that wasn't moving. What is the veloc
    10·1 answer
  • A 75-g projectile traveling at 600 m /s strikes and becomes embedded in the 40-kg block, which is ini-tially stationary. Compute
    9·2 answers
  • I NEED HELP ASAP! Compare the spectrum of the unknown gas collected at the bulb company
    10·1 answer
  • 3. The displacement of a particle is represented by s = at? + bts where t is time. Deduce the values of the constants a, and b.
    8·1 answer
  • What type of path does a moving object follow in the absence of a force?.
    12·1 answer
  • Three types of physical cables that carry a signal are twisted pair, fiber optic, and ____.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!