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3 years ago

What is law of conservation of mass

Physics

1 answer:

timurjin [86]3 years ago

5 0

Explanation:

<h2>law of conservation of mass</h2>

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

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Match each type of consequence with its resulting behavior change

ira [324]

Answer:

Janet stops parking in handicapped spaces after she gets a big parking ticket. - Positive Punishment

Peter’s recess is taken away to discourage him from getting into fights with the other children. - Negative Punishment

Ted increases paying his bills on time to avoid a late fee. - Negative Reinforcement

Sally increases the amount of work she completes to receive more pay. - Positive Reinforcement

Explanation:

In operant conditioning, the main principle is that behavior increases or decreases its frequency depending on whether it's reinforced or punished. A behavior can be reinforced by giving something the subject appreciates, like more pay for their work (positive reinforcement) or taking away something they dislike, like late fees (negative reinforcement). Punishments work the same way, you can give something the subject dislikes, like a parking ticket, (positive punishment) or taking away something they like recess for a child. (negative punishment).

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3 years ago

A system in which only one particle can move has the potential energy shown in (figure 1). Suppose u1 = 60 j. What is the y-comp

marta [7]

The y-component of the force on the particle at the given position is 120 N.

<h3>Electric force on the particle</h3>

The electric force on the particle is determined by applying Coulomb's law and work-energy theorem as shown below;

Fd = W

Where;

F is the applied force
d is the distance
W is potential

F = W/d

F = 60/0.5

F = 120 N

Thus, the y-component of the force on the particle at the given position is 120 N.

Learn more about electric force here: brainly.com/question/20880591

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2 years ago

Where is the location potential energy is converted to kinetic energy?<br> Please answer asap!!!!!

kolezko [41]

Potential energy is the energy that is possible to be realized, based on position, while the kinetic energy is the energy that is present and due to motion

The location where the potential energy is converted into kinetic energy is the point (2)

Reason:

The mechanical energy, M.E., of the roller coaster, is given as follows;

M.E. = P.E. + K.E.

Where;

P.E. = The potential energy = m·g·h

K.E. = The kinetic energy = $\dfrac{1}{2} \cdot m \cdot v^2$

Where;

v = The velocity

h = The height

m = The mass

g = Acceleration due to gravity

∴ M.E. = m·g·h + $\dfrac{1}{2} \cdot m \cdot v^2$

The mechanical energy, M.E., is constant, therefore;

When the height, h = 0, we have, the kinetic energy is maximum, given that the mechanical energy is entirely kinetic energy

Therefore;

The locations where potential energy is converted to kinetic energy are lowest locations, where the height, <em>h</em>, is minimum, such as the point (2)

Learn more about potential and kinetic energy here:

brainly.com/question/18963960

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3 years ago

A rifle bullet with a mass of 11.5 g traveling toward the right at 251 m/s strikes a large bag of sand and penetrates it to a de

BabaBlast [244]

To look for the acceleration, it will come from:

vf^2=v0^2+2ad
where:
vf = final velocity = 0
v0 = initial velocity =251 m/s
a = acceleration
d= distance traveled = 0.237 m

0=251^2+2a(0.237 )
a= -251 ^2 / (2*0.237) =-132 913.502 m/s/s

we find the force from:

F = ma = 0.0115kg*(-1.32x10^5m/s/s) = -1518 N

the negative sign shows that the force is in the direction contradictory the bullet's motion

5 0

3 years ago

Help please, what does gravitational force do according to these answer choices?

laiz [17]

Answer:

the answer is C

Explanation:

gravity forces down not up or sideways.

5 0

3 years ago

What is law of conservation of mass​

What is law of conservation of mass