A 10 kg box is motionless on the floor. If the coefficient of static friction is 0.4 and
the coefficient of kinetic friction is 0.3 (between the box and the floor), find the
force required to start the block in motion

Answers

Answer 1

The force required to start the given box in motion is 39.2 N.

The given parameters;

mass of the box, m = 10 kgcoefficient of static friction, [tex]\mu_s[/tex] = 0.4coefficient of kinetic friction [tex]\mu_k[/tex] =  0.3

The force required to start the box in motion must be greater or equal to static frictional force.

The magnitude of the force is calculated as follows;

[tex]F = \mu_s F_n\\\\F = \mu_s mg\\\\F = (0.4) \times (10) \times (9.8)\\\\ F = 39.2 \ N[/tex]

Thus, the force required to start the box in motion is 39.2 N.

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Answer 2

Answer:

Explanation:

uk=0.3

us==00.4

f=10

ground acceleration =9.8

f=10×0.4×9.8=39.2


Related Questions

Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation:

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Answer:

its in this order 2,1,1

Explanation:

trust me bro

Answer:

221 is the actual answer

Explanation:

dont trust the person above me

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Answers

Am guessing;

9/4 × 60/1 =135

How are electrical energy, thermal energy, and mechanical energy related?

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Answer:

motion of molecules

Explanation:

I believe that is true

Alice and Julio’s company makes protective coverings for off-roading vehicles. Alice’s job involves harvesting a natural polymer from trees. Julio’s job is to take that material and change it chemically to create a synthetic polymer.

Which materials do Alice and Julio most likely work with?

Alice works with vulcanized rubber, and Julio works with natural rubber.
Alice works with natural rubber, and Julio works with vulcanized rubber.
Alice works with cellulose, and Julio works with nylon.
Alice works with nylon, and Julio works with cellulose.

Answers

Answer:

Alice works with natural rubber and Julio works with vulcanised rubber.

Explanation:

Natural rubber is a polymer from tree.So it satisfies the profession of Alice.vulcanised rubber is artificial or synthetic polymer.So it satisfies the profession of Julio

Answer:

B. Alice works with natural rubber, and Julio works with vulcanized rubber.

Explanation:

I just took the test and got 100 percent.

I hope this helps you!!!!

Please mark my answer the Brainiset. Thank You!!!!!

Please help me thank you
Fr+Cl=FeCl3

Answers

Fe+3Cl->FeCl3

Wish you always happy

An object on Earth weighs 600 N and on Mars 100 N. If its mass on Earth is approximately 60 kg what is the mass of the object on Mars?

Answers

Answer:

I think its

10 kg

plzz plzz plzz. mark as brainliest

If the mass of an object is approximately 60 kg on earth then its mass remains the same on Mars which is 60 kg because mass does not change from place to place.

What is mass?

Mass in physics is a numerical representation of inertia, a fundamental property of all matter. What a body of matter is fundamentally is the resistance it offers to a change in its speed or location brought on by the application of a force. The more mass a body has, the less of a change a force exerts results. The kilogram is the unit of mass in the International System of Units, and it is defined by Planck's constant as being equal to 6.62607015 × 10⁻³⁴ joules second (SI).

According to the question, the weight of an object depends on gravity which is different from place to place so weight also varies from place to place but the mass is constant everywhere it does not change. So, if the mass of an object is 60 kg on earth then it remains the same on mars also.

To get more information about Mass :

https://brainly.com/question/19694949

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which gravitational pull has the greatest effect on tides?

Answers

Answer: The pull of the Moon's gravity on Earth is the primarily cause of tides and the pull of the Sun's gravity on Earth is the secondary cause. The Moon has a greater effect because, although it is much smaller than the Sun, it is much closer. The Moon's pull is about twice that of the Sun's.

If the volume of the gas increases from 600 to 800 in. 3, by how much does the pressure change?.

Answers

Answer: decreases by 7.5

Explanation:

1. A truck is traveling at a speed of 12 km/s is going to school. It took 10 seconds to get to school. What was the distance?​

Answers

Answer:

120km

Explanation:

To get speed you divide distance by time.

The position-time graph for two drivers (A and B) are shown in the figure below. Which of the following statements is correct?

a. The two drivers are for sure moving in parallel directions
b. Driver B is moving faster than driver A.
c. Driver A is moving faster than driver B.
d. The two drivers are moving at the same speed

Answers

Answer:

A

Explanation:

what would be Vy and pllzzzzzzz help

Answers

Answer:

2400m/s , 2240,2080,1920m/s



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Question 4 of 5
Which pair of objects would repel each other?
O A. A positively charged particle and a neutral particle

OB. A negatively charged particle and a neutral particle

O C. Two positively charged particles

OD. A positively charged particle and a negatively charged particle

Answers

Answer:

Two positively charged particles

Explanation:

I said two positively charged particles because if I say c or d what ever it is for you guy it can be wrong so just pick the one that says Two positively charged particles

Answer: C  Two positively charged particles.

Explanation:

just trust me on it, i've done the same quiz.

what is the formula of parallelogram method to work out the sum of two vectors​

Answers

Answer:

The sum of vectors P and Q is given by the vector R, the resultant sum vector using the parallelogram law of vector addition. If the resultant vector R makes an angle ϕ with the vector P, then the formulas for its magnitude and direction are: |R| = √(P2 + Q2 + 2PQ cos θ) β = tan-1[(Q sin θ)/(P + Q cos θ)]

Who is most likely to be offered a higher auto loan rate based on their credit-
to-debt ratio?
A. Juan has $10,000 in credit and owes $6,000.
B. Chester has $5,000 in credit and owes $750
C. Jalissa has $5000 in credit and owes $500.
credjtar
D. Nancy has $10,000 in credit and owes $2,000.
SUBMIT
HELP ME PLEASE

Answers

jalissa

hope this helps :)

Answer:

A - Juan

Explanation:

I took the test!

When might people use data tables and graphs in their everyday lives? How are these uses similar to and different from the way in which scientists use these same tools?
Do you think scientists need data tables and graphs to do their work?
Which fields of science do you think might use data tables and graphs more than others?

Answers

Answer:

hahaha bisa aja ente gan di download di sini adalah salah satu

H is a chemical (blank) and H2 is a chemical (blank)
Please I need help!​

Answers

Answer:

"H" is a chemical symbol and "H2" is chemical formula.

Which example shows an endothermic reaction?


reactants + thermal energy --> products

products + thermal energy --> reactants

products --> reactants + thermal energy

reactants --> products + thermal energy

please help

Answers

Answer:

reactants --> products + thermal energy

Explanation:

Heat is absorbed in endothermic reaction.

Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation:

(
)Zn + (
)HCl → (
)ZnCl2 + (
)H2

Answers

Answer:

Given equation

[tex]\\ \sf\longmapsto Zn+HCl\longrightarrow ZnCl_2+H_2[/tex]

Balanced equation

[tex]\\ \sf\longmapsto Zn+2HCl=ZnCl_2+H_2[/tex]

Reactant side:-

Zn=1Cl=2H=2

Product side:-

Zn=1Cl=2H=2

Hence balanced

Answer:

1 2 1 1

Explanation:

A Rocket took 5 minutes to travel the 185 km. How fast did the Rocket travel in kilometers per minute (km/min)?

Answers

Answer:

The rocket travelled 37km per minute

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185÷5=37

the average speed of a runner in a 483. meter race is 3.0 meters per second. How long me runner to complete the race? Dont include units, round nearest whole number.

Answers

Answer:

161

Explanation:

[tex]v=\frac{d}{t}[/tex] slove for t

[tex]t=\frac{d}{v}[/tex]

Insert values of d and v

[tex]t=\frac{483}{3} \\[/tex]

t=161

What is the correct description for an element?

A. Elements are made of two or more different types of atoms, chemically joined together

B. Elements are made up of one type of atom only

C. Elements are made of two or more types of atoms, not chemically joined

Answers

Answer:

B

Explanation:

Elements are made up of one type of atom only

The lithosphere is a rigid layer made of Earth's entire crust and the very top part of Earth's mantle. This rigid layer is divided into several large pieces, or plates. The lithospheric plates float on top of the _______, which is a weak part of the mantle that flows slowly.

Answers

Answer:

dxfgjcfygu.h

Explanation:

so sorrymcgvlg;uh'ijuoi'ogf;yulcfxkchgvjhgijuiu

y'i;fyltkxfgchghui

uy8't;fultdyk

Which statement identifies the chemical property of iron that results in the formation of rust?

A. It is nonflammable.

B. It reacts with oxygen to form a new substance.

C. It has a very high melting point.

D. It conducts electricity.​

Answers

Answer:

B, It reacts with oxygen to form a new substance

Explanation:

B

most of the waves in the electromagnetic spectrum are

Answers

Answer:

The entire electromagnetic spectrum, from the lowest to the highest frequency (longest to shortest wavelength), includes all radio waves (e.g., commercial radio and television, microwaves, radar), infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays.

Which layer is the igneous rock type?

options:

A


B


C


D

Answers

The answer is D that is the only one of the answers that’s right.

Which type of electromagnetic radiation is useful in communications technology?
A. X-rays
B. visible light
C. radio waves
D. ultraviolet radiation

Answers

Radio waves: they are present in radios and also walkie-talkies

what is pole of magnet
and
define the term magnetic line of force​

Answers

Answer:

1. The magnetic pole is the region at each end of a magnet where the external magnetic field is the strongest.

2. magnetic line of force - a line of force in a magnetic field. field line, line of force - an imaginary line in a field of force; direction of the line at any point in the direction of the force

Explanation:

the acceleration due to gravity is caused by a field force. TRUE OR FALSE?

Answers

Answer:

I think it's true,,

Explanation:

maybeee truee

What is Flexibility ?​

Answers

ANSWER

=> Flexibility is the ability of a joint or series of joints to move through an unrestricted, pain free range of motion.

PLEASE HELP!!!!
1. Suppose a planet orbits a star at the same distance
as Earth (1 AU) but with a period of roughly 200
Earth days. The mass of the central star is:
a. less than the mass of our sun.
b. the same as the mass of our sun.
c.greater than the mass of our sun.
d. impossible to determine without
knowing the mass of the planet.

Answers

Since the period of the supposed planet is less than the period of the earth orbiting the sun, That means the mass of the central star is greater than the mass of the sun. The answer is option C

According to Kepler's third law of planetary motion for planets and satellites, he described circular orbit about the same center body stating that:

The squared of the period is directly proportional to the cube of the radius. That is,

[tex]T^{2} \alpha r^{3}[/tex]

The orbital period formula is expressed as :

[tex]T^{2}[/tex] = 4[tex]\pi ^{2}[/tex] [tex]r^{3}[/tex]  ÷ GM

Suppose a planet orbits a star at the same distance as Earth (1 AU) but with a period of roughly 200 Earth days. The mass of the central star will be greater than the mass of our sun based on the formula given above.

In a geostationary orbit, whatever the mass of the satellite may be, they will travel at the same speed in a particular orbit. mass M in the above formula becomes the mass of the sun or the center mass.

Since the period of the supposed planet is less than the period of the earth orbiting the sun, That means the mass of the central star is greater than the mass of the sun.

Therefore, the correct answer is option C

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