A book is sliding across a horizontal tabletop. As it slides, slows down. Which of the following statements best explains this situation?

There is a balanced force on the book caused by gravity.

There is no upward force acting on the book.

There is an unbalanced force on the book caused by friction.

There are no unbalanced forces acting on the book.

A book is sliding across a horizontal tabletop. As it slides, slows down. There is an unbalanced force on the book caused by friction.

The force preventing sliding against one another of solid surfaces, fluid layers, and material components is known as friction. There are several kinds of friction, The force that opposes the relative lateral motion of two solid surfaces in contact is known as dry friction.

When a stick is used to beat the carpet, a little amount of static friction occurs, holding the dust to the carpet. When we beat a carpet with a stick, the stick's external force forces the carpet to move away from the dust by overcoming friction.

A frictional force or an opposing force is produced when two rough surfaces come into contact with one another. This force can occasionally be transformed into heat.

Thus, option C is correct.

To learn more about friction follow the link;

https://brainly.com/question/13000653

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When going from a slower medium to a faster medium, light is bent _____.
A. toward the normal line
B. away from the normal line

If you have a parallel circuit with a battery (4 ohms), a light bulb (2 ohm), and a fan (3 ohms), how would you find the total resistance of the circuit?

Explain how scientist learned about the magnetic poles of the Earth.

Before you can solve a problem, the first thing you have to do is Question 2 options:

define the problem
build a prototype
design your solution
test your solution

In a reaction between iron and oxygen, the reaction slowed down when there was more rust (iron oxide) than either iron or oxygen. Which of the following caused this reaction to slow down?

A. products decreased
B. reactants decreased
C. surface area increased
D. temperature increased

Isopropyl alcohol is a clear liquid with a density of 0.78 g/cm3. If the same small sphere (with a density of 0.88 g/cm3) is dropped in a beaker of isopropyl alcohol, predict whether the sphere will float or sink?

Compare and contrast the alkaline battery and a Zinc carbon battery. put in some other facts about them too. write somewhere around 2 paragraphs.



I'll mark brainlyest to whoever has the best answer and give them 50 points for helping me.

What’s the most historic thing that has happened in your lifetime?

calculate the density of an objects whose mass is 93.2 g and its volume is 4.67​

There are 3 different answers you can pick from.

no coefficient
2
3

When they're trying to solve a problem, engineers follow a series of Question 1 options: problems steps solutions tests

Which human action would most likely increase the nutrients in an ecosystem?
A.building a rock wall
B.fertilizing a cornfield
C.watering a flower bed
D.pulling weeds from a garden

Who inspires you? Who do you aspire to be like?
Shark diving, bungee jumping, or skydiving?
What's your favorite cheesy pick-up line? Have you ever used it in real life?
What's your favorite Disney movie?
What is the weirdest scar you have and how did you get it?
Where did you and your best friend meet?
Which of your accomplishments are you most proud of?
What's the weirdest Wikipedia rabbit hole you've stumbled down?
Tell me about the best vacation you've ever taken.
What's your favorite physical attribute about yourself?
Friday night—would you rather stay in or go out?
Do you believe in ghosts?
What piece of art (book, music, movie, etc.) most influenced the person you are today?
Which would be harder for you to give up: coffee or alcohol?
What's the single best piece of advice you ever received?
Who's your best friend, and what do you love about him or her?
What's the greatest risk you've ever taken?
If you had 24 hours to do whatever you wanted in this city, what would you do?
What do you like about where you work?
What hobby have you always wanted to develop?

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Which of the following is true with regard to sodium and potassium?
A
The both have three outer shell electrons.
B
They both have filled orbitals.
C
They tend to form anions.
D
They tend to form cations.

jenny turned on the fan in her bedroom. what energy transformation took place when she turned on the fan

A scientist works for a drug company and runs experiments on their product with results that favor the company's product. This is an example of_________.

(A.) conflict of interest and confirmation bias.


(B.) getting the inside scoop about a product, buying company stock, and making a lot of money.


(C.) sound and reliable science practices.


(D.) all the above.

The Same force is applied to a 300 kg go kart and 100 kg wagon at the beginning of the race. Which time is true about their acceleration

A. The go-kart and wagon will accelerate at the same rate

B. The go-cart and wagon will not accelerate

C. The wagon will accelerate at a faster rate

D. The go-cart with accelerate at a faster rate

Which is the best way to define wind?

a
Wind is the movement of air from areas of low pressure to areas of high pressure
b
Wind is the movement of air to a colder area in the atmosphere.
c
Wind is the movement of air from areas of high pressure to areas of low pressure.
d
Wind is the movement of air pushed around and bouncing off Earth's surface.

Need help ASAP with this question

What is a wet celled battery composed of? Give an example of a wet celled battery.

Which arrow or arrows represent reactions that demonstrate a conservation of mass and energy? Explain your answer

determine the volume of a substance given that the density is 2.6 g/mL and its mass 5.5 g​

If you push on an object with great force, but it does not move:

a. no work is done
b. a great amount of work is done
c. a small amount of work is done
d. energy is created

1. reaction that releases heat
outer ear
2. flow of electrons through a material toward a positive charge
compression
3. build up of electrons in a material
static electricity
4. part of the ear is responsible for capturing sound waves
exothermic
5. part of the sound wave where the molecules are pressed closely together
current electricity

Which of the following statements is true?

a. An insulator speeds up the transfer of heat.
b. Radiation is the transfer of heat in solids.
c. All moving objects experience friction.
d. All work gains some energy as heat.

A student used a portable electric drill to remove screws from a broken wooden table. He noticed that the screws holding the table together were warm to the touch after being removed from the wood. Which statement best explains this phenomenon?
A:Electrical energy from the drill was converted into chemical energy due to conductivity.
B:The process of removing the screw concentrated the thermal energy that was already present in the wood

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You see a worm crawling along the ground and wonder if scientists consider it living or nonliving. Which item below would not be true when classifying the worm as living or non‐living?
A worm can move so it must be living.
A worm can reproduce and make little baby worms (called wormlets) so it must be alive.
Worm’s pass dirt through their body pulling food out and discarding the stuff they don’t want so it must be alive.
If you cut a worm in half, it can re‐grow so it must be alive.

What are some causes of climate change?