a feather will fall through the air more slowly than a brick because of

Answers

Answer 1

Answer:

Air resistance

Explanation:

Because the air gives a much greater resistance to the falling motion of the feather than it does to the brick. The air is actually an upward force that is acting against gravity and slowing down the rate at which the feather falls.


Related Questions

What is the radius of an automobile tire that turns with a period of 0.091 s and has a linear
speed of 20.0 m/s? What kind of force is the centripetal force?

Answers

Answer:

1) The radius of the tire is approximately 0.28966 meters

2) The centripetal force is the force that keeps a body moving on a circular path

Explanation:

1) The linear speed of the automobile tire = 20.0 m/s

The period with which the tire turns = 0.091 s

The period = The time it takes to make a complete turn

Therefore;

The number of turns in 1 second = 1/0.091 ≈ 10.989 turns

The distance covered with 10.989 turns, assuming no friction = 10.989 × The circumference of the tire

∴ The distance covered with 10.989 turns, assuming no friction = 10.989 × 2 × π × Radius of the tire

From the speed of the car, 20.0 m/s, we have;

The distance covered in 1 second = 20.0 meters

Therefore;

10.989 × 2 × π × Radius of the tire = 20.0 meters

Radius of the tire = (20.0 meters)/(10.289 × 2 × π) ≈ 0.28966 meters

The radius of the tire ≈ 0.28966 meters

2) The centripetal force is the force required to maintain the curved motion of an object, and having a direction towards the center of the rotary motion.

The centripetal force is given by the formula, [tex]F = \dfrac{m \cdot v^2}{r}[/tex]

Where;

F = The centripetal force

m = The mass of the object

v = The linear velocity of the object

r = The radius of the rotational motion.

explain what happens when particles collide

Answers

Answer

they transfer energy

A 12 kg object speeds up from an initial velocity of 10 m:s-1
north to a final velocity of 15 m.s-north. Calculate the
change in momentum.
Select one:
a. -60 kg.m/s
b. 60 kg.m/s
C. -80 kg.m/s
d. 300 kg.m/s

Answers

Momentum = m • v

Original momentum = m • 10 m/s north

Final momentum = m • 15 m/s north

Change = m • (15 - 10) m/s north

Change = m • +5 m/s north

Change = +60 kg-m/s north

What allows us to categorize rocks into the three rock types: Igneous, Sedimentary, and Metamorphic?
Whether or not the rock melts
Involvement of sediment
Process of formation
O Magma or weathering.

Answers

Answer:process of formation

Explanation:

A bugatti chiron travels 116 m/s for 10 seconds.how far did it travel

Answers

Answer:

V=  1,160 m

Explanation:

formula:

            V=  V*  T

remplazamos:

V= 116m /s * 10s

V=  1,160 m

Answer:

V=  1,160 m

Explanation:

A roller coaster is stopped on a track. When the engineer presses a launch button on the coaster, the coaster moves forward. Explain this change in terms of balanced and unbalanced forces.

Answers

A roller coaster is stopped on a track. When the engineer presses a launch button on the coaster, the coaster moves forward. Explain this change in terms of balanced and unbalanced forces.

The south pole of one bar magnet is near the south pole of another bar magnet. What happens between the magnets?

A. They attract each other.
B. They twist toward each other.
C. They neither attract nor repel each other.
D. They repel each other.

PLEASE HELP!!!!!!!!!!​

Answers

the answer would be D

The south pole of one bar magnet brings near the south pole of another bar magnet, they repel each other. Therefore, option (D) is correct.

What are the magnets?

A magnet can be defined as an object which is capable of producing a magnetic field and attracting unlike poles and repelling like poles. When a magnet dropped in iron filings, the iron filings cling to the end of the magnet as the attraction is maximum at the ends of the magnet.

Magnetic poles always exist in pairs whenever a magnet is suspended freely in the air, and always points in the north-south direction. The pole pointing towards the geographic north is called the North Pole and the pole pointing towards the geographic south is called the South Pole.

Similar poles of a magnet repel while unlike poles attract each other. The magnetic force between the two magnets is higher when the distance between these magnets is lesser. There are three types of magnets which are Permanent magnets, Temporary magnets, and electromagnets.

Learn more about magnets, here:

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Does water pressure depend on the total amount of water present?

(Will pick brainliest)

Answers

Answer:

No, because pressure is determined by force and the area over which that force acts.

Explanation:

Opal is making a list of the uses of electromagnetic radiation. Which of the following should Opal NOT include in her list?

A. A man using a microwave to boil water

B. A submarine using sonar to locate a ship

C. A girl using a remote control to change television channels

D. A hospital using an X-ray machine to take a picture of a broken bone

Answers

Answer:

A.

Explanation:

A man using a microwave to boil water

Answer:

d

Explanation:

The diagram shows the forces acting on an object at an instant of time. Which of
the following statements about the forces is true? Select one answer.

Answers

Answer:

The correct option is;

The object is in horizontal equilibrium but NOT in vertical equilibrium

Explanation:

The given given forces in the force diagram are expressed in vector form as follows;

Topmost force = 2·i + 3·j

The horizontal force = 3·i

The force at the lower section = -5·i - 2·j

Adding the forces together to find the resultant force gives;

[tex]F_R[/tex] = 2·i + 3·j + j + (-5·i - 2·j) = 5·i + 3·j - 5·i - 2·j = i + j = j

[tex]F_R[/tex] = j

Therefore, the horizontal component of the forces are balanced as they cancel out and the object is said to be in horizontal equilibrium

However, the object has a net total resultant force component in the positive vertical direction, the object is not in vertical equilibrium.

Which of the following equations is balanced?

a. 2Al2O3 -----> 3Al + 3O2
b. 3Al2O3 -----> 3Al + 2O2
c. 2Al2O3 -----> 4Al + 3O2
d. 2Al2O3 -----> Al + 3O2

Answers

Answer: c

Explanation:

The way to check which one is the correct one is to simply multiply and see if there are the same number of atoms in both sides for each element.

a. 2×2 atoms of Al ≠ 3×1 atoms of Al

2×3 atoms of O = 3×2 atoms of O

BOTH MUST BE EQUAL FOR IT TO BE ADJUSTED!!!!!

b. 3×2 atoms of Al ≠ 3×1 atoms of Al

3×3 atoms of O ≠ 2×2 atoms of O

c. 2×2 atoms of Al = 4×1 atoms of Al

2×3 atoms of O = 3×2 atoms of O

BOTH ARE EQUAL, CORRECT ANSWER!!!

d. 2×2 atoms of Al ≠ 1×1 atoms of Al

2×3 atoms of O = 3×2 atoms of O

The planet Jupiter is about 300 times as massive as Earth, but an object on its surface would weigh only 2.5 times as much as it would on earth. Can you come up with an explanation?

Answers

Answer:

here you go

Explanation:

so it might seem that a body on the surface of Jupiter would weigh 300 times as much as on Earth. ... But the radius of Jupiter is about 10 times that of Earth, weakening gravity by a factor of 100, resulting in 3 times its Earth weight.

A 3kg ball moving at 8 m/s strikes a 2kg ball at rest,if the collision is elastic,what is the speed of the lighter ball if the heavier ball moves at 2m/s in the opposite direction

Answers

Answer:

Speed of lighter ball is 4 m/s.

Explanation:

Applying the principle of conservation of linear momentum,

momentum before collision = momentum after collision.

[tex]m_{1}[/tex][tex]u_{1}[/tex] + [tex]m_{2}[/tex] [tex]u_{2}[/tex] = [tex]m_{1}[/tex][tex]v_{1}[/tex] - [tex]m_{2}[/tex][tex]v_{2}[/tex]

[tex]m_{1}[/tex] = 3 kg, [tex]u_{1}[/tex] = 8 m/s, [tex]m_{2}[/tex] = 2 kg, [tex]u_{2}[/tex] = 0 m/s ( since it is at rest), [tex]v_{1}[/tex] = 2 m/s, [tex]v_{2}[/tex] = ?

(3 x 8) + (2 x 0) = (8 x 2) - (2 x [tex]v_{2}[/tex])

24 + 0 = 16 - 2[tex]v_{2}[/tex]

2[tex]v_{2}[/tex] = 16 - 24

2[tex]v_{2}[/tex] = -8

[tex]v_{2}[/tex] = [tex]\frac{-8}{2}[/tex]

   = -4 m/s

This implies that the light ball moves at the speed of 4 m/s in the opposite direction of the heavier ball after collision.

kinetic energetic plus potential energy is called

Answers

Object mechanical energy

Consider the line graph depicting the motion of two cars. What statement regarding the cars motion is accurate?

Answers

Answer:

Its C

Explanation:

I did it on usatestprep

What is the current in the 10.0 resistor?

Answers

Answer:

12.0V

12.0V

Explanation:

.

.

.

.

.

.

.

.

.

.

.

Answer:

2.00 A

Explanation:

The SI unit of average speed m.s. True or False. But is there difference between m/s and m.s.​

Answers

Answer:

false

Explanation:

there is difference in m/s and m.s

what would be the velocity
when a dog of 10kg and it's kinetic energy is 20J​

Answers

Answer:

2 m/s

Explanation:

20 divided by 10 is 2 meters per second

Lead-202 has a half-life of 53,000 years. How long will it take for 15/16 of a sample of lead-202 to decay?
106,000 years
159,000 years
212,000 years
265,000 years
(Thank you very much :L)

Answers

Answer:

C. 212,000 years

Explanation:

believe me it's correct.....and you're welcome :)

What is the net force on this box?

Answers

Answer:

I believe 0

Explanation:

this is due to the fact that the box will not move anywhere the forces are canceling themselves out.  

is the force that opposes the motion and therefore, tries to stop
or slow down a moving body.
e fuole​

Answers

Answer:

Friction is the force between an object in motion and the surface on which it moves. Friction is the external force that acts on objects and causes them to slow down when no other external force acts upon them. Inertia is the tendency of a body in motion to remain in motion.

Answer:

Explanation:

Friction is the drive between an object in motion and the surface on which it moves. Friction is the outside constrain that acts on objects and causes them to moderate down when no other outside drive acts upon them.

Please help me fast

Answers

Answer:

b I think. sorry if it's wrong

29. Identify whether each of the following is a form of mechanical energy:
elastic potential energy, chemical potential energy, gravitational potential
energy.

Answers

Explanation:

elastic potential energy, chemical potential energy, and gravitational potential energy are all forms of mechanical energy.

Mechanical energy includes elastic potential energy, chemical potential energy, and gravitational potential energy.

What is Mechanical energy?Mechanical energy is the energy that an object has as a result of its motion or position. Because it is stretched out in that position, a pulled bow has mechanical energy (elastic potential energy). Chemical potential energy is the energy that a substance has stored in its chemical bonds. A barbell hoisted high above a weightlifter's head has mechanical energy because of its vertical position above the ground (gravitational potential energy).The sum of kinetic and potential energy in an object used to perform a specific task is known as mechanical energy. In other words, it describes the energy of an object as a result of its motion, position, or both.

To learn more about mechanical energy, refer

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A submarine is built to dive to a depth of 90 m where the pressure in the water is about 1 MPa. The engineers want to build a window in the submarine, but the window can only take a force of 10 kN safely. What is the largest surface area window that can be used?

Answers

Answer:

The largest surface area window that can be used is [tex]A=0.01\ m^2[/tex]

Explanation:

Pressure

The pressure is defined as force per unit area. The SI unit for pressure is the Pascal (Pa), defined as Newton per square meter.

If a force F acts on a surface area A, the pressure is calculated as:

[tex]\displaystyle P=\frac{F}{A}[/tex]

The pressure at a depth of 90 m is P=1 Mpa= 1,000,000 Pa and the submarine's window can only take a force of F=10 kN=10,000 N.

We need to calculate the largest surface area of the window. We can solve the equation for A:

[tex]\displaystyle A=\frac{F}{P}[/tex]

Substituting:

[tex]\displaystyle A=\frac{10,000}{1,000,000}[/tex]

[tex]A=0.01\ m^2[/tex]

The largest surface area window that can be used is [tex]\mathbf{A=0.01\ m^2}[/tex]

A diver runs horizontally off the end of a diving board with an initial speed of 1.95 m/s. If the diving board is 2.00 m above the water, what is the diver's speed just before she enters the water

Answers

Answer:

V = 6.56 m/s

Explanation:

in order to find the speed of the diver before she enters we need to find the vertical component of its final velocity by using 3rd equation of motion:

2gh = Vy² - V₀y²

where,

g = 9.8 m/s²

h = height = 2 m

Vy = Vertical Component of Final Velocity = ?

V₀y = Vertical Component of Initial Velocity = 0 m/s

Therefore,

2(9.8 m/s²)(2 m) = Vy² - (0 m/s)²

Vy = √39.2 m²/s²

Vy = 6.26 m/s

Assuming negligible air friction, the x-component of the final velocity will be the same as the initial velocity:

Vₓ = V₀ₓ = 1.95 m/s

Hence, the final velocity will be:

V = √(Vₓ² + Vy²)

V = √[(1.95 m/s)² + (6.26 m/s)²]

V = 6.56 m/s

The average velocity of an object over 6.0 seconds interval is 2 m/s what is the total distance traveled and M by the object doing this time interval

Answers

Answer:

The answer is 12 m

Explanation:

The distance covered by an object given it's velocity and time taken can be found by using the formula

distance = velocity × time

From the question we have

distance = 2 × 6

We have the final answer as

12 m

Hope this helps you

Convert 14 minutes to seconds.
(What unit do we want)

1. Seconds
2. Minutes

Answers

Answer:

Seconds...

Explanation:

Psychology:
_________ is focusing on something specific in the environment.
A.
Attention

B.
Stimuli

C.
Memory

D.
Rehearsal

The answer is A. Attention

Answers

Answer:

ans is a .attention

plsssssssssssss mark meeee brainlist

Explanation:

What is the average acceleration of a tennis ball that has an initial velocity of 6.0 m/s [E] and a final velocity of 7.3 m/s [W], if it is in contact with a tennis racket for 0.094 s?

Answers

Given :

The average acceleration of a tennis ball that has an initial velocity of 6.0 m/s.

and a final velocity of 7.3 m/s.

It is in contact with a tennis racket for 0.094 s

To Find :

The average acceleration of the tennis ball.

Solution :

We know, average acceleration is given by :

[tex]a_{avg}=\dfrac{Final \ velocity-Initial\ velocity}{Time\ Taken}\\\\a_{avg}=\dfrac{7.3-6.0}{0.094}\ m/s^2\\\\a_{avg}=13.83\ m/s^2[/tex]

Therefore, average velocity is given by 13.83 m/s².

Hence, this is the required solution.

A water tank is filled with up to 3.5 m height.Calculate the pressure given by the tank at its bottom​

Answers

Answer:

96.04Pa

Explanation:

height=3.5m

gravity=9.8%

density=9.8/3.5

=2.8

Preassure=h×g×d

=3.5×9.8×2.8

=96.04Pa

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Kendra is writing a paper about how to train a pet. Which topic would she MOST LIKELY include in her paper? freeeeeeeeeeeeeeeeeeeeeeer pointk A plastic bin contains red, yellow, and green key chains. Out of 350 key chains, 10% percent are yellow. Of the remaining key chains, are green. How many red key chains are inside the bin?A. 26B. 35C. 126D. 189 please help, the brainiest will go to the one with a good answer.Reduce the following fraction: -36x^4y^4z^5/-12x^6y^3zA. -3x^2yz^4B. 3yz^4/1x^2C. -9yz^5/-3x^2D. 36yz^5/12x^2 One root of is x = 2. What are all the roots of the function? Use the Remainder Theorem. x = 2, x = 3, or x = 4 x = 2, x = 3, or x = 4 x = 1, x = 2, x = 3, or x = 13 x = 1, x = 2, x = 3, or x = 13 Which of the following types of specialized cells are only found in plants? A:Phloem B:Glandular C: Muscle D: Nerve Study circle C, where diameter AB is perpendicular to chord MN at point O.The diagram as described in the text.If MO = 5x 7 and NO = 18, what is the value of x?Enter the correct value. Read the sentences, look at the image, and match each sentence with the name of the royal family member missing in the blank. (4 points)Juan Carlos I and Sofa married and had Elena, Cristina, and Felipe VI. Elena married Jaime de Malichalar and had Felipe and Victoria. Cristina married Iaki Urdangarin and had Juan, Pablo, Miguel, and Irene. Felipe VI marred Letizia and had Leonor and Sofa.b 1. Una de las nietas de Juan Carlos I es ________.b 2. El abuelo de la princesa Sofa es ________.b 3. La hermana de Miguel es ________.b 4. El esposo de la reina queen Letizia es ________.a. Felipeb. Leonorc. Irened. Juan Carlos Contrast the way that information about Native Americans is organized in Native American Homes with the way that information about Native Americans is organized in The Pueblo Revolt. The size of the orbital is determined by the nn The size of the orbital is determined by the ______ quantum number, so the size of the orbital _______ as this value increases. Therefore, an electron in a _______ orbital is closer to the nucleus than is an electron in a ________ orbital. quantum number, so the size of the orbital The size of the orbital is determined by the _______ quantum number, so the size of the orbital ________ as this value increases. Therefore, an electron in a _______ orbital is closer to the nucleus than is an electron in a ________ orbital. as this value increases. Therefore, an electron in a The size of the orbital is determined by the ________ quantum number, so the size of the orbital _________ as this value increases. Therefore, an electron in a ________ orbital is closer to the nucleus than is an electron in a _________ orbital. orbital is closer to the nucleus than is an electron in a The size of the orbital is determined by the _______quantum number, so the size of the orbital ________ as this value increases. Therefore, an electron in a ________ orbital is closer to the nucleus than is an electron in a ________ orbital. orbital. This is for someone that i was suppost to give brainliest to lol complete the sequence:1,1,2,3,5,_,_,_ What role did Europeans play in the economic and intellectual worlds of South and East Asia? what was the social and political impact of the transatlantic slave trade? element that is the "best" at removing electrons from other atoms. Which sentence from the paragraph BEST supports the idea that Sam is a good student? Which carbon footprint solution does this picture try to reinforce?a.Recyclingc.Using solar powerb.Driving lessd.Only using the washer for a full load pzzzzzz help A 5.00-kg object is attached to one end of a horizontal spring that has a negligible mass and a spring constant of 280 N/m. The other end of the spring is fixed to a wall. The spring is compressed by 10.0 cm from its equilibrium position and released from rest.1) What is the speed of the object when it is 8.00 cm from equilibrium? (Express your answer to three significant figures.) 2) What is the speed when the object is 5.00 cm from equilibrium? (Express your answer to three significant figures.)3) What is the speed when the object is at the equilibrium position? (Express your answer to three significant figures.) 1. The model represents an equation.Which is the value of x for this equation?1X11111111A.X= 2B.x= 4C.x= 5D.x = 6 My friend Adam, who likes to look for omens, said that all the ____________ indicated that this was the year he should go to England to study the Roman ruins.