What property of matter do we consider when deciding whether to buy a half-gallon of milk at the store versus a gallon of milk?

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Answer 1

Answer: Liquified matter maybe.

Related Questions

Which of the following answers describe how to calculate the acceleration of an object? A. Divide the change in the objects velocity by the time it takes to make that change.B. Divide the time the object travels by the distance it travels. C. Calculate the distance the object travels and divide that by the time it takes to get there.D. Calculate the velocity of an object and divide that by the time the object is in motion.
What is the most important reason that caffeine (C8H10N4O2) has a lower melting point than copper (II) chloride (CuCl2)?A. The intermolecular forces holding the caffeine molecules together are weaker than the ionic bonds in CuCl2.B. The heavy caffeine molecules are more likely to fall apart than the lighter CuCl2 molecules.C. The metallic bonds in copper chloride are stronger than the ionic bonds in caffeine.D. Caffeine is a network solid and has a low melting point like other network solids.
A student is helping her teacher move a 9.5 kg box of books. What net sideways force must she exert on the box to slide it across the floor so that is accelerates at 1.0m/s2?
Why are frames of reference important for motion
A student claims that any object in motion must experience a force that keeps it in motion. Do you agree or disagree? Explain your reasoning.

Barry has a 10 kg object. He exerts a horizontal force which causes it to accelerate at 5 m/s2, moving it a distance of 20 m, horizontally. Calculate the work done by the force.

Answers

Answer:

Work done by the force is 1000 Joules

Explanation:

The relation ship between the variables is as follows:

(Work W) = (Force F) x (Displacement d) = (Mass m) x (Accelleration a) x (Displacement d)

so:

$W = m\cdot a\cdot d = 10 kg \cdot 5 (m)/(s^2) \cdot 20 m = 1000 J$

If you push a book against a wall hard enough, it will not slide down even though gravity is pulling it. Use what you know about Newton’s laws of motion to explain why the book is not falling. (giving away brainliest!)

Answers

Frictional force is defined by the following formula -

f = coefficient of friction (u) X Normal reaction exerted by the surface (N)

So, f = u X N.

Now 'u' is a constant for given surfaces in contact ( keep in mind that it depends on both the surfaces that are in contact with each other, here wall and the book that you are pressing)

Now, Normal reaction is equal and opposite to the force exerted by an external force on the surface, PERPENDICUAL TO THE SURFACE ( or the perpendicular component of the external force). The external force exerted on the surface which is vertical to it, in this case, is equal to the force that you are applying while you are holding/pressing the book against the wall.

So, at any point of time, frictional force = u X (Force you are applying on the surface, via the book)

Or, f = u X F, where,
f = frictional force,
u = coefficient of friction, and
F = Perpendicular component of the force exerted by you on the book towards the surface.

Now direction of f -
Frictional force always act parallel to the surface and in opposite direction to the direction of motion.

In absence of friction, book will fall down, because of gravity acting on it. So friction will try to act in the opposite direction of this motion. So, upwards in this case.

If let's say you have a metal object placed between magnets, which is applying more force on it than gravity, in upwards direction; and you try to press it against the wall, the motion of object will be upwards, so friction will then act downwards.

Friction always opposes the direction of motion in which the object would have moved because of RESULTANT FORCE on it in absence of friction.

Takeaways in English (or, common observation) -
1) Harder you press the book against the wall, harder it will be for a person to move the book on the surface of the wall, while you are pressing it. Because of higher friction.

2) The more you move the book on the wall, while keep on pressing it, warmer the surface of the book which is in contact with wall will be. Because if more energy is dissipated per second to overcome friction, which gets converted to heat energy.

2.1) Harder you press, book will heat up faster.

3) Harder you press the book against the wall, lesser chance are that it will fall down. Because more frictional force is now acting on it to hold it against gravity.

4) Heavier the book, more frictional force is needed to hold it from falling, and that is why you have to press it harder to hold Heavier books.

5) That is all I can think of right now. Try applying this concept in things you see around.
12.8K viewsView 6 Upvoters · Answer requested by Muhammad Shouman
Related Questions (More Answers Below)

HELP PLEASE ASAP!! I will five 46 POINTS.!!!!Which statement below is true based on the graph?

A) line segment AB is showing the cart traveling at 10 m/s.

B) Line segment CD is showing acceleration as the line has a straight increasing slope.

C) Line segment DE is showing the cart is traveling at a constant rate.

D) Line segment BC is showing acceleration as the cart is increasing its speed.

Answers

connexus! Answer b...

The answer is B.......

Which of the following changes can happen when the forces on an object are unbalanced?a. The object speeds up
b. the object slows down
c. the object changes direction
d. all of the above

Answers

the answer too your question is c.

Which of the following are transferred or shared when two atoms react chemically? *

Answers

Answer:

One of the basic principles of chemistry is the electrostatic attraction between atoms or compounds. Electrons are on the outside of an atoms and that's where the charges come from and the interaction between those charges is what happens during a chemical bond. Therefore the answer would be electrons.

A pendulum takes 0.5 second to complete one cycle. What is the pendulum’s period and frequency?

Answers

That "0.5 second" that it takers to complete one cycle is the period.

Frequency = 1/period = 1/0.5 = 2 Hz.

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