a person lifts a package weighing 75 N if she lifts it 1.2m off the floor what work has she done ?

Answers

Answer 1

Answer:

W = 90 J

Explanation:

Data:

Force (F) = 75 NDistance (d) = 1.2 mWork (W) = ?

Use the formula:

W = F * d

Replace and solve:

W = 75 N * 1.2 mW = 90 J

The work done was 90 Joules.

Greetings.


Related Questions

When you're driving in a car and you speed
up, what are you doing?

Answers

Answer:

i belive i dont knownow

Explanation:

You are using acceleration because you are speeding up the car making the number go up and increase

SCIENCE quantity that are obtained or derived from basic quantity are called​

Answers

Explanation:

they are called derived quantities. which includes:

pressure, stress, work, acceleration, velocity,density,force

what are the intermolecular forces present in water?

Answers

123456789 cari aja sendiri

Answer:

The main intermolecular forces present in water is hydrogen bond.

It is followed by,

Dipole-dipole attractions

Dipole-induced dipole attractions

London dispersion forces

The hydrogen bonds are the strongest force, but the other types of intermolecular attraction are still present.

please helpppp 12 points

Answers

the amplitude is the height of the waves so wave c is largest and wave d is smallest

I NEED THIS ANSWERED ASAP NO LINKS !!!
I need a answer that is 100% ACCURATE

Answers

Answer:

it increasees

Explanation:

its 100% acurate dont worry

How quickly would the 50kg box accelerate if the person applied a 580N force?

Answers

Answer:

11.6 m/s²

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

[tex]a = \frac{f}{m} \\ [/tex]

f is the force

m is the mass

From the question we have

[tex]a = \frac{580}{50} = 11.6 \\ [/tex]

We have the final answer as

11.6 m/s²

Hope this helps you

A box is pushed by a force of 15 N and accelerates 2 m/s2. What is the mass of the box?

Answers

Answer:

7.5 kg

Explanation:

The mass of the box can be found by using the formula

[tex]m = \frac{f}{a} \\ [/tex]

f is the force

a is the acceleration

From the question we have

[tex]m = \frac{15}{2} = 7.5 \\ [/tex]

We have the final answer as

7.5 kg

Hope this helps you

What is a similarity between chemical change and chemical properties

Answers

Answer:

How are physical and chemical changes similar and different? (compare and contrast) (Physical and chemical changes are similar because matter experiences a change in state, Physical changes are different because matter remains the same substance, just in a different state, whereas chemical changes change the matter

Answer: In a physical change like melting of ice , energy is given to increase the molecular saperarion between the molecules, leading to liquid water and its physical state also changes but chemically it is still H2O, no change in identity.

During a chemical change mass does not changes but it chemical chane, it do, for ex in rusting of iron, the Fe2O3 cover is comparable to mass of ice if thin sheetvis used for rusting and also in burning of candle which is made of hydrocarbon has its mass lost into air

If the mass of an object is 100 and Net force is 400, what would be the Acceleration?
And explain.

Answers

Answer:

[tex]4m/s^{2}[/tex]

Explanation:

I'm assuming the units for force and mass are Newtons and kilograms, respectively.

Rearranging Newton's first law (F=m*a) to solve for acceleration:

F=m*a

[tex]a=\frac{F}{m}=\frac{400 N}{100 kg}=4m/s^{2}[/tex]

The acceleration is 4 meters per second squared and was found by rearranging Newton's first law in order to solve for acceleration.

if a person with the arm dimensions shown pushes down hard with a 90 n force, what force must the triceps muscle provide? ignore the mass of the arm and hand in your calculation.

Answers

Answer:

1125 N

Explanation:

what is the central idea for stacking rocks vertically to test the effects of forces

Answers

Answer:

You can see how forces can stack on one another by comparing the normal force of the bottom most rock to the normal force of the upper most rock.

Explanation:

Say you have 3 rocks all with mass m=3kg

These 3 rocks will all have the gravitational force of -29.4N (multiply 3kg by -9.8m/s^2)

If none of the rocks are stacked, then they all have the same normal force as well (29.4N)

However, stack them, and see how their normal forces change.

m1 will continue to have a normal force of 29.4N

m2 will now have a normal force of 58.8

m3 will now have a normal force of 88.2

Though they all retain the same gravitational force, their normal force changes depending on the forces acting down on them.

Mass 1 have no forces acting downwards other than gravity.

Mass 2 has the force of mass 1 and gravity acting down on it.

Mass 3 has the force of mass 1, mass 2, and gravity acting down on it.

Kevin and Kisha are ice skating. Kisha has a mass of 60 kg, and Kevin has a mass of 45 kg. As they face each
other, Kevin pushes off Kisha with a force of 54 N. Assume the friction between the skaters and the ice is
negligible.
t
Determine the magnitude of Kevin's acceleration.
Write your answer to two significant figures.
m/s
m

Answers

If Kevin with mass 45kg pushes Kisha with a force of 54N, the magnitude of Kevin's acceleration is 1.2 m/s²

Kisha's mass = 60 kg

Kevin's mass = 45 kg

Kevin pushes off Kisha with a force of 54 N

Since it was Kevin that pushed Kisha, and the required force is 54N, we can look for Kevin's acceleration using the equation below

F  =  ma

The considered mass is Kevin's mass

54   =  45a

a   =   54/45

a   =    1.2 m/s²

The magnitude of Kevin's acceleration is 1.2 m/s²

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To make a solution for an experiment, Gunther needs to add 40 g of a solute to 100 g of water. When making the solution at room temperature, he could only add 34 grams before the solute settled out.
What could he do to dissolve the remaining 6 grams of the solute?

a) Put the solution in an ice bath, dissolve the solute, and let the solution return to room temperature.
b) Heat the solution, dissolve the solute, and let the solution cool verifying nothing settled out.
c) Add more water, boil the solution, and dissolve the solute until the some of the water evaporates.
d) Keep the solution at room temperature, add more water, and dissolve the excess solute.

Answers

Answer:

b.

Explanation:

b) Heat the solution, dissolve the solute, and let the solution cool verifying nothing settled out.

draw the well labelled diagram of thermo flask.​

Answers

Answer:

Here the answer is attached

Explanation:

If you apply a force of 10 N to a table and push it 5 m in 10 s, how much power did you deliver? Multiple choice question. A) 50 W B) 25 W C) 500 W D) 5 W

Answers

Answer:

D) 5 W

Explanation:

Force=10N

Distance =5m

Time=10s

Power =?

But Power= Work done/Time taken

P= W/s

W= Fxd=10x5=50

P=50/10

P=5W

If force is 150N and area 25cm squared what is the pressure

Answers

Explanation:

Force = 150N

Area = 25cm = 25/10000m²

Pressure = F/A = 150/(25/10000) = 1500000/25 = 60000Pa.

hope this helps you.

PLEASE HELP
If the change in energy of an object is 50J, the work done on the object is 

Answers

Answer:

Explanation: Since work done is= to energy lost,the work done on this object will also be 50J...

Why are occupants of the international space station weightless?

Answers

The astronauts, the ISS itself and other objects in Earth orbit aren't floating, they are actually falling. ... So, as they accelerate towards the Earth, the Earth curves away beneath them and they never get any closer. Since the astronauts have the same acceleration as the space station, they feel weightless.


( can I please get the brainliest, thanks)

a football quarterback throws a football. after it leaves his hand, what forces are acting on the football? choose all that apply.

Answers

golekeeper

Explanation:

because they use hand to save keeper

A cart of weight 20 N is accelerated across a level surface at 0.15 m/s?. What net force acts on
the wagon?

Answers

The net force that acts on the cart of wagon is calculated as 3N

HOW TO CALCULATE NET FORCE:

The net force of a body can be calculated by multiplying the mass of the body by its acceleration. That is;

Force (N) = weight (N) × acceleration (m/s²)

According to this question, a weight of 20N accelerated across a level surface at 0.15 m/s². The net force can be calculated as follows:

F = 20 × 0.15

F = 3N

Therefore, the net force that acts on the cart of wagon is calculated as 3N.

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A vector starts at the point (0, 0) and ends at (3, 1). What is the magnitude and direction of the displacement?

Answers

Answer:

tbh vector does not have any direction at all the answer is 0

An book fell from a shelf 1.5 meters from the ground. If it took the book 3 seconds to hit the ground, what was the velocity of the book?

Answers

The initial velocity of the book before its hits the ground is 14.2 m/s.

The given parameters;

height of the book above the ground, h = 1.5 mtime of motion of the book, t = 3 seconds

The initial velocity of the book is calculated as follows;

h = ut + ¹/₂gt²

where;

u is the velocity of the book

1.5 = 3u + (0.5 x 9.8 x 3²)

1.5 = 3u + 44.1

3u = 1.5 - 44.1

3u = -42.6

[tex]u = \frac{-42.6}{3} \\\\u = -14.2 \ m/s\\\\u = 14.2 \ m/s \ downwards[/tex]

Thus, the initial velocity of the book before its hits the ground is 14.2 m/s.

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How much work does a 60 Watt motor perform in 5 minutes?

Answers

Answer:

18000J or 18kJ

Explanation:

Use the formula:

work done or energy = power × time

power = 60Wtime = 5 mins = 300s (5 × 60)

Sub in the values:

work done or energy = 60 × 300 = 18000Answer = 18000J or 18kJ

Hope this helps!

How much must an object weigh to be able to float in water?
1: more than the amount of water it displaces
2: less than the amount of water it displaces
3: more than a gram
4: less than a gram

Answers

Answer:

less than one gram

Explanation:

big brain

Answer:

less than a gram

Explanation:

because yes

A jogger runs 12.0 blocks due east then 5.0 blocks due south. Find the magnitude of the joggers net displacement ?

Answers

Answer: 13.0 blocks

Explanation:

640 nanometer setara dengan​

Answers

Answer:

640 nanometer setara dengan​ 6.4e-7 meter

Forces come in pairs. What are these pairs called?

Answers

Answer: Action-Reaction force pairs

Explanation: please make me brainiest thanks

Answer:

"action-reaction force pairs"

Explanation:

...

Can someone help me with one through seven I will mark you the brainly

Answers

Answer:

1.  F = M x A

2. Force  

3. 2nd Law: Force

4. a, b, c (in order)

5. 3rd Law: Action and Reaction

6. b, c, a (in order)

7. 1st Law: Inertia

1. F=ma

2. Force

3. Second law

4. a)first

b)second

C) third

5. Third

6. a) second

b) third

C) first

7. First

If Runner A ran 1 mile in 7 minutes and Runner B ran 1 mile in 5 minutes, who ran at a faster speed.

Answers

Answer:

B

Explanation:

ran a mile 2 minutes faster

How do you post a question? And I agree with the other guy it’s runner b

.)
What would the TABLE pane corresponding to the 2D MAP shown below look like?
latitude
30.2°
30°N
29.8°N
29.6°N
longitude
90.40
90.2°
90°W
89.8°
longitude : 89.6 W

Answers

Answer:

the correct answer is A the first map

trust i got a 100

Explanation:

Answers are the following:-

1. 33°N latitude, 112°W longitude ⇒ Phoenix, Arizona

2. 35°N latitude, 78°W longitude ⇒Raleigh, North Carolina

3. 46°N latitude, 96°W longitude ⇒ Fargo, North Dakota

4. 45°N latitude, 122°W longitude ⇒Portland, Oregon

5. 29°N latitude, 95°W longitude ⇒Houston, Texas

6. 43°N latitude, 79°W longitude ⇒Niagara Falls, New York

7. 25°N latitude, 80°W longitude ⇒ Miami, Florida

What is a longitude?

The term Longitude has been refered as the horizontal lines that are the measurement east or west of the prime meridian. Longitude are the imaginary lines that divide the Earth. Longitudes are also called the meridians, which run from north to south pole to pole but they measure the distance east or west.

The hypothesis that the species diversity is greater at lower latitudes than higher latitudes because low-latitude habitats are older would be supported if speciation rates were: the same at high and low latitudes.

Species diversity can be defined as the number of species, present in an area or the ecosystem. More are the number of species, more diverse is the area is. The richness and functionality of an ecosystem is estimated through its diversity.

Therefore,longitudes are the horizontal lines which divide the Earth.

Learn more about longitude here:-

brainly.com/question/3070484

#SPJ6

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