If the box the man is carrying is very heavy, explain if he does any work as he walks across the room with it.

Answers

Answer 1
since the box is heavy, i don’t believe he would be able to do any work because of the mass. as the man carries the box across the room, it is being pulled to the ground by gravity— this makes the man focus on keeping the box in his arms.

sorry if this isn’t what you were asking!

Related Questions


A platinan bar measure 5.0cm long, 40cm
wide and 1.5 cm thick. if has a mass of 700.0grams.

Calculate the volume of platinum bar.


I need help :( Plz help me​

Answers

Answer:

that is what I got for my answer

Explanation:

I Calculate it and I got 1600

How much does a 3.0 kg bag of bolts weigh?

A) 7.2 N

B) 14.4 N

C) 22.8 N

D) 29.4 N

E) 58.8 N

Answers

Answer:

29.4N is a 3.0kg bag of bolts weigh.

The force by gravitation is called the weight of a body. The weight of the body with a mass of 3 Kg is 29.4 N.

What is gravitational force?

Gravitational force is a kind of force by which an object attracts other objects into its center of mass. Earth attracts every objects into its center and thereby we are all standing on the surface.

Gravitational force is acting downward on a body and it depends on the mass of the body. Greater the mass, greater will be the fore of gravitation and its weight experienced on earth.

Given that, mass of the bag = 3 Kg.

force by gravitation  = Mg = 3 × 9.8 m/s² = 29.4 N.

where, g is the acceleration due to gravity. Therefore, the weight of the bag is 29.4 N. Hence, option D is correct.

To find more on gravitational force, refer here:

https://brainly.com/question/12528243

#SPJ2

The asteroid, Ida, has a small moon, Dactyl, that orbits at a speed of 5.66 m/s in an orbit of radius 90, 000m . What is Ida's mass?

Answers

Answer:

4.3 x 10^16 kg

Explanation:

M = rv^2/G =[90,000 x 5.66^2] / [6.67 x 10^-11]

M = 43,226,446,776,611,694 = 4.3 x 10^16 kg - Ida's mass.

Answer:

Explanation:

the person on top of me was correct 4.3 10^16 i have it in my notes from when i was in school :) so they are right

Which statement describes the interaction between the permanent magnets and the electromagnet in an electric motor? A. The current in the electromagnet is reversed by the permanent magnets B. The current in the permanent magnets is reversed by the electromagnet C. The poles of the permanent magnets are reversed by the electric field of the electromagnet. D. The metal loop in the electromagnet turns because of the magnetic field of the permanent magnets​

Answers

Answer:D

Explanation:AP3X

The statement describes the interaction between the permanent magnets and the electromagnet in an electric motor is option D.

What is magnet?

A substance which is negative charged at one end and positive charged at another end creating the magnetic field around it.

A bar is a magnet which can attract the particle which are charged. It has two poles North and South.

The permanent magnet create magnetic field very strong. The electromagnet is find in the electric motor. In the motor, loop made up of conductor is rotated by the effect of magnetic field of permanent magnet.

Thus, the correct option is D.

Learn more about magnet.

https://brainly.com/question/2841288

#SPJ2

Intermolecular force is stronger than the kinetic energy in?

Answers

Answer:

If the average kinetic energy is greater than the attractive forces between the particles, a substance will not condense to form a liquid or a solid. If the kinetic energy is less than the attractive forces, a liquid or solid will form.

Explanation:

A ball is dropped from a height of 50 meters above the ground. What is its velocity the moment it hits the ground?

Answers

Answer:

The distance is 45m. (s)

Acceleration is 9.8 m/s^2 (acceleration due to gravity). (a)

We have to find the time (t)

By the 3rd equation of motion,

s = ut + 1/2 at^2 (here u is the initial velocity of the ball)

Since the initial velocity was 0 m/s, the formula becomes s = 1/2 at^2.

(substituting the values in the formula)

45 = 1/2 x 9.8 x t^2

45 = 9.8/2 x t^2

45 = 4.9 x t^2 (9.8/2 = 4.9)

(divide 4.9 on both sides)

45/4.9 = 4.9 x t^2 / 4.9

9.1836 = t^2

3.030 = t

So it takes approximately 3 seconds for the ball to reach the surface of the earth (neglecting air resistance). You can try the same with 50 m .

The velocity of the ball the moment it hits the ground is equal to 31.3 m/s.

What is the equation of motion?

Equation of motion has established a relation between the velocity of the body and acceleration of the body when the body is moving with uniform acceleration along a straight line. The distance traveled in a specific time has expressed a set of equations termed equations of motion.

The first equation of motion can be expressed as follows:

v = u + at

The second equation of motion can be expressed as follows:

S= ut + (1/2)at²

Where u is the initial velocity of a body, v is the final velocity, S is the distance, a is the acceleration and t is the time.

Given, the distance traveled by the ball, S = 50 m

and, the initial velocity of the ball, u = 0 as ball is at rest initially.

From the second equation of motion, find the value of 't':

50 = (0) t + (1/2)× (9.8) ×(t²)

t = 3.19 sec

Now from the first equation of motion, find the value of the final velocity of the ball:

v = (0) + (9.8) (3.19)

v = 31.3 m/s

Therefore, the ball hits the ground with a velocity of 31/3 m/s.

Learn more about the equation of motion, here:

brainly.com/question/16782759

#SPJ2

Un prisma rectangular de cobre, de base igual a 36 centímetros cuadrados y una altura de 10 cm se sumerge hasta la mitad por medio de un alambre en un recipiente que contiene alcohol ¿que volumen de alcohol desaloja?

Answers

La respuesta correcta es 180 centímetros cúbicos o 180 [tex]cm^{3}[/tex]

Explicación:

El primer paso para saber cuanto alcohol desaloja el prisma es calcular el volumen total del prisma. El volumen se puede encontrar usando la formula V (Volumen) = B (base) x h (altura). El proceso se muestra a continuación:

V  = B x h

V = 36 [tex]cm^{2}[/tex] x 10 cm

V= 360 [tex]cm^{3}[/tex]

Finalmente, el volumen total del prisma debe dividirse en 2 considerando que solo la mitad del prisma fue sumergida y esta mitad equivale al volumen del alcohol desplazado.

360 [tex]cm^{3}[/tex] ÷ 2 = 180 [tex]cm^{3}[/tex]  

El volumen de fluido desplazado es de 180 cm^3.

Sabemos que el objeto va a desplazar su propio volumen de fluido. Por lo tanto, necesitamos obtener el volumen del objeto a, este es el volumen del fluido que eventualmente será desplazado por el sólido.

El volumen del sólido es;

V = 36 cm^2 * 10 cm^2 = 360 cm^3

desde que se sumergió a la mitad, volumen de alcohol desplazado = 360 cm^3/2 = 180cm^3

Obtenga más información sobre el volumen: https://brainly.com/question/7932885

What distance was covered in the 1st 2 seconds?

A.0 m B. 4m

C. 2m C. 8m

Answers

Answer:

E

Explanation:

Elaphants and noodles+ramen and sushi

The force on the projectile is constant throughout the flight *
True
False

Answers

It’s true for sureeeeeeeee
It’s true of course

A roller coaster with a potential energy of 235,200 J sits at the top of a 30 m high hill. What is the mass of the roller
coaster? (Formula: PE = mgh)
O 800 kg
O 7,840 kg
O 8,000 kg
O 78,400 kg

Answers

Answer:

800 kg

Explanation:

I just did it :)

Which of the following objects had the greatest force applied to it? *

A) An object with a mass of 10 kg and an acceleration of 2.5 m/s^2
B) An object with a mass of 12 kg and an acceleration of 3.0 m/s^2
C) An object with a mass of 20 kg and an acceleration of 1.5 m/s^2
D) An object with a mass of 15 kg and an acceleration of 1.0 m/s^2

Answers

Answer:

B) is the answer

Explanation:

A) is 25 N

B) is 36N

C) is 30N

D)15N

The radius of Mars is 3397 km; and its mass is 6.42x10²³ kg. What is the acceleration due to gravity at an altitude of 485 km above the surface of Mars?

Answers

Answer:nfeergnjknrtgrth

Explanation:

Answer:

F = GMm/r^2

MA = GMm/r^2

A = GM/r^2

A = (6.67 * 10^-11)(6.42 * 10^23) / (3.37 * 10^6)^2

A = 3.77 m/s^2

Explanation:

Which statement correctly describes the charge of the nucleus and the charge of the electron cloud of an atom?

Answers

Answer:

This question is incomplete

Explanation:

This question is incomplete because of the absence of options. However, the charge of a nucleus was discovered by Ernest Rutherford. The nucleus is located in the centre of an atom and it contains protons and neutrons. The protons are positively charged while the neutrons have no charge, thus the charge of the nucleus is positive because the neutrality of the neutron does not affect the charge of the proton.

The charge of an electron was first measured by Robert Millikan. Electrons are negatively charged subatomic particles that balance out the positive charge of the protons.

Dorji weight 1500n.if the total surface area of soles of his feet is 0.5 m2 what is the pressure exerted by his body on the ground​

Answers

Answer:

P = 3000 Pa

Explanation:

Weight of Dorji, W = F = mg = 1500 N

The total surface area of soles of his feet is 0.5 m²

We need to find the pressure exerted by his body on the ground​. The pressure is equal to the force acting per unit area. So,

[tex]P=\dfrac{1500\ N}{0.5\ m^2}\\\\=3000\ Pa[/tex]

So, the pressure exerted by his body on the ground​ is 3000 Pa.

2. Two people, one on Earth and the other on the Moon, try and lift 200 kg blocks. Which person
will have to exert more force to lift their block or will they need to exert the same amount of
force? Explain your reasoning(4 pts)

Answers

Answer:

The person on Earth will have to exert more force to lift their block

Explanation:

The mass of the blocks to be lifted = 200 kg

The location of the first person = On Earth

The location of the second person = On the Moon

The force a person will have to exert to lift the block = The weight of the block = The gravitational force, F, on the block which is given as follows;

[tex]F = \dfrac{G \times M_1}{R^2} \times m_2[/tex]

Where;

[tex]\dfrac{G \times M_1}{R^2}[/tex]= The acceleration due to gravity on the Earth or the Moon, depending on the location of the block

m₂ = The mass of the block

Therefore, given that the acceleration due to gravity on the Earth is larger than the acceleration due to gravity on the Moon, the weight of the block on the Earth is larger than the weight of the block on the Moon, and the person on Earth have to exert more force to lift the heavier weight of the block on Earth than the person on the Moon will have to exert to lift the same block as the block has a lower weight on the Moon due to lower acceleration due to gravity on the Moon.

State the career function of civil engineering​

Answers

Answer:

Civil engineers design major transportation projects. Civil engineers conceive, design, build, supervise, operate, construct and maintain infrastructure projects and systems in the public and private sector, including roads, buildings, airports, tunnels, dams, bridges, and systems for water supply and sewage treatment.

OC -5.9 m/s
2. A driver of a car traveling at 15.0 m/s applies the brakes, causing a
uniform acceleration of -2.0 m/s". How long does it take the car to
accelerate to a final speed of 10.0 m/s?​

Answers

Answer:

2.5 s

Explanation:

The formula for acceleration is ;

a= v₂-v₁ / t

where ;

a= acceleration = -2 m/s²

v₂= final velocity = 10 m/s

v₁ = initial velocity = 15 m/s

t= time taken for the car to accelerate = ?

Applying the values in the formula as;

a= v₂-v₁ / t

-2 = 10 - 15 / t

-2t = -5

t= -5/ -2

t= 5/2 = 2.5 s

Which of the following accurately describes circuits? Question 6 options: A) In a parallel circuit, the same amount of current flows through each part of the circuit. B) In a series circuit, the amount of current passing through each part of the circuit may vary. C) In a series circuit, the current can flow through only one path from start to finish. D) In a parallel circuit, there's only one path for the current to travel.

Answers

Answer:

Explanation: C is the correct one

because A) the current divides into parts for each branch

B)the current doesn't varry in series

D) in parallel the current divides and passes in all branches

A machine gun with a mass of 5kg fires a 50g bullet at a speed of 100m/s calculate the recoil speed of the machine gun

Answers

Answer:

Explanation:

Convert mass of bullet 50g in kg

✯ Divide 50 by 1000

⟹ 50/1000

∴ 0.05 kg

WHOEVER RESPONDS TO THIS FIRST WILL GET BRAINIEST!!!!!!
What is the velocity of a car going 4miles in 30 seconds, with the displacement of 36?

Answers

Answer:

alright i responded

Explanation:

you didnt say i had to answer

Yes I responded to the answer is 47

3
A comb is charged negatively when coming a dry hair
is there a tranfer of charge alone or mass also

Answers

Answer:

there is transfer of change alone

Answer:

someone pls explain this question

Anyone play Among US?

Answers

Answer:

Yes

Explanation:

Its a good game.

Answer:

oof

Explanation:

In a lacrosse game a ball is thrown with a force of 2000 N. The throwing force acted for 0.8
seconds. If the ball had a change in velocity, Av, of 50 m/s, what is the mass of the ball?

Answers

Answer:

Mass, m = 32 kg

Explanation:

Given that,

Force, F = 2000 N

The change in velocity, (v-u) = 50 m/s

Time, t = 0.8 s

We need to find the mass of the ball. The net force acting on an object is given by :

F = ma

Where a is acceleration

[tex]F=\dfrac{m(v-u)}{t}\\\\m=\dfrac{Ft}{(v-u)}\\\\m=\dfrac{2000\times 0.8}{50}\\\\m=32\ kg[/tex]

So, the mass of the ball is 32 kg.

please help me I need this today

Answers

Answer:

42km/h

Explanation:

Change in km/ Change in time

1.4 x 100

0.033 x100

140km/3.3

= 42.4242 --> 42km/h

Brainliest Appreciated!

Alex wants to take a small road trip over the weekend, but
needs to be back before Monday. He travels 450 miles and
it takes him 9 hours. What unit of measurement should
Alex be measuring his speed with

Answers

Answer:

Miles is the distance unit. Hours is the time unit.

Explanation:

the photos below show four pairs of objects. which pair of objects is experiencing the greatest gravitational force.A. the person and dog B. The person and the ball C. the person and earth D. the person and the building

Answers

Answer:

C.

Explanation:

the earth has a high greavitational pull

Answer: C the person and earth

Explanation: I just answered it on a p e x

what is the motion of a car​

Answers

Answer: Assuming you are driving a car on the road, consider the motion of the car. As the wheels of the car spin backwards, they push the road backwards. In consequence, the road must push the wheels forward according to the third law of motion. It is this reaction force acting on the wheels causes the car to move forward.

Explanation: hope this helps!

Explain the difference between mass and weight and
how they are measured.

Answers

Answer:

Mass is a measure of how much force it will take to change that path. Mass depends on how much matter – atoms and so on – there is in an object; more mass means more inertia, as there is more to get moving. ... Weight, on the other hand, is a measure of the amount of downwards force that gravity exerts on an object

By using electroscope, if the body is negatively charged then due to electrostatic induction, then on the leaves there will be appear:
(a) both positive and negative charges
(b) negative charge
(c) positive charge
(d) no charge

Answers

(b) negative charge

This is the answer

it should be

B)Negative charge

Hope this one helped

Which one of the following choices was not a stage in the formation of Earth's atmosphere?

A. A super-dense atmosphere composed mostly of methane.
B. A volatile atmosphere composed of carbon dioxide and water vapor.
C. An oxygenated atmosphere with nitrogen and free oxygen.
D. A primordial atmosphere composed of hydrogen and helium.

Answers

Answer:

A

Explanation:

cause I'm big brain :)

Other Questions
A gas station sells unleaded regular and unleaded premium gasoline. The price per gallon charged by the station is$1.299 for unleaded regular and $1.379 for unleaded premium. The cost per gallon from supplier is$1.219 for unleaded regular and $1.289 for unleaded premium. If equals the number of gallons sold of regular and equals the number of gallons sold of premium:(a) Formulate the revenue function from selling and gallons of the two grades of gasoline respectively?(b) Formulate total cost for purchasing and gallons?(c) Formulate the total profit? d) what is the total profit expected to equal if the station sells 100,000 gallons of unleaded and regular and 40000 of unleaded premuim? What is the slope of the line? How do you build a ship? Which word fits in this sentence:A __________ is how long it takes for one of the planets to go around the sun one time. Earth takes 365.25 days to go around the sun one time. We call this a _______.A: revolution, yearB: year, revolution A 6 year old boy presents with seizure. She has had acute gastroenteritisfor the past 2 days. Electrolytes are normal. Which of the following is themost likely cause?a- salmonellab- shigellac- campylobacterd-yersiniae-vibrio? explain why the suspension of isolated chloroplasts became alkaline when illuminated? Question: If an electric train is moving north at 100mph and a wind is blowing to the west at 10mph, which way does the smoke blow? HELP! I NEED HELP! HEEEEEEELP how many moles of NaCl are dissolved in 250 mL of solution if the solution concentration is 0.150 M? Which expression is equivalent to 3m+1-m?A-2+m-1+mB-1+mC-3m-1D-3m Where is the Okefenokee Swamp located * A circle is divided into 3 equal parts. What is the total angle measure of 1 part? In Triangle BCD, BC=BD, and angle B =13x-35, angle C = 5x-19, angle D=2x+14. Find the measure of each angle When is it okay to get a ride home from an adult who has been drinking?A. Your parents gave you permission earlier in the day to accept the ride.o B. You cannot reach anyone else who you know to come pick you up.C. You have your learner permit and the driver says she trusts your driving skills.O D. You should never accept a ride from anyone who has been drinking. Which of the following best explains how the cell theory was developed?Cells are so diverse that scientists had to come up with an explanation that would apply to all types of cells.Mutations occur and cause changes in cells so scientists could not develop a law that would apply to all forms of cells.PLZ HELP ASAP IT IS A TEST!!!!The cell theory is a well-tested explanation of observations that was formed from the contributions of several different scientists.The cell theory was developed through extensive library research because it would be impossible to test all living things for the presence of cells. The number of tickets sold at the Amazing Art Museum on Saturday was 175% of the ticket sales on Friday.If 2,000 tickets were sold on Friday, how many tickets were sold on Saturday?On Saturday,______ tickets were sold. Read the excerpt from The Building of Manhattan.When the driver was ready for a new rivet, the heater took a hot cherry-red one out of his forge with his long-handled tongs. And with an underhand toss he hurled the smoking rivet straight at the catcher, who caught it in mid-air in his catching can. The catcher then grabbed it with his tongs, tapped it against a beam to remove any cinders, and jammed it into the waiting hole.Which illustration would best give the reader a clearer understanding of the text?an illustration of the heater and the catcher taking a lunch breakan illustration of the heater holding long-handled tongsan illustration of the heater tossing a rivet to the catcheran illustration of the catcher tapping a hot rivet against a beam Hey can someone pls help me will give brainliest I will be very grateful thx!!!! Justify why there is still a need for vocational courses and not just steigertcademic degrees Easy!! If answer right. Will give crown.. Help!! Just Think Thanks BrainlistExplain one reason that led to the increase in the trade of sugar. Write it out in sentence form. You can EITHER describe the concept of mercantilism] and how sugar fit into this OR you may come up with your own piece of evidence