A 5kg book is slid across the floor with an initial velocity of 3m/s. It slows and stops due to the friction with the floor. How man joules of work did friction do?

Answers

Answer 1

Answer:

SUP DAD i love cookies

Explanation:

yuh


Related Questions

The two characterists of stars shown on an H-R diragram are absolute brightness
and

Answers

Surface temperature im quite certain

a typical 100-watt light bulb consumes 100 j of energy per second. if a light bulb converts all of this energy to 400 nm light, how many photons are produced each second?

Answers

Answer:

Let y equal lambda the wavelength of the light

e (photon) = h f = h c / y

e = 6.63E-34 * 3.0E8 / 400E-9

e = 6.63 * 3  / 400 * 10^-17

e = 4.97E-19

N= 100 J/sec/ 4.97E-19 J = 2.01E20 / sec

thank you for helppp

Answers

Answer:

the moon is closer to the earth than sun

have a beautiful day

Two balls are dropped from rest and allowed to fall. If one ball is allowed to fall for 1 s and the other for 3 s compare the distances they have fallen.

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The second ball traveled a greater distance when compared to the first ball because the second ball spent more time in motion.

The given parameters;

time of fall of the first ball, t = 1 stime of fall of the second ball, t = 3 s

The distance traveled by each ball is calculated using the second equation of motion as shown below.

The distance traveled by the first ball is calculated as follows;

[tex]h = u_0t + \frac{1}{2} gt^2\\\\h = 0 + \frac{1}{2} gt^2\\\\h = \frac{1}{2} gt^2\\\\h = (0.5\times 9.8\times 1^2)\\\\h = 4.9 \ m[/tex]

The distance traveled by the second ball is calculated as follows;

[tex]h = \frac{1}{2} gt^2\\\\h = (0.5\times 9.8\times 3^2)\\\\h = 44.1\ m[/tex]

Thus, the second ball traveled a greater distance because it spent more time in motion.

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A 3,650.0N car is pushed on the side of the road with a constant motion of 4 m/s. What is the mass of the car?

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The mass of ur question is 4

HELP ASAP ILL GIVE BRAINLIST

How are translational, rotational, and oscillatory motion used in the design of various robotic assemblies?

Answers

Answer:

Each of the joints represents a degree of freedom in the manipulator system and allows translation and rotary motion :) Hope this helps

Changing classes, you walk 20.0 m down a hall, turn left, and then walk 10.0 m down another hall. Define a coordinate system and sketch the displacement vector. Also, sketch the displacement components, and then determine the vector's magnitude.

Answers

Explanation:

Calculate position vectors in a multidimensional displacement problem. Solve for the displacement in two or three dimensions. Calculate the velocity vector 

11. A roller coaster car is moving slowly up a long ramp to the very top of the roller coaster. It goes over the top and starts down a steep slope and it picks up speed rapidly as it rolls down an almost vertical slope. Four seconds later, at the bottom of the steep slope, its velocity is 28 m/s. The average acceleration during those 4 seconds was 6 m/s2 . What was the initial velocity of the roller coaster car as it started down the slope?

Answers

Answer:

a = (v2 - v1) / t

a t = v2 - v1

v1 = v2 - a t

v1 = 28 m/s - 6 m/s^2 * 4 s = 4 m/s

state the general relationship between temperature and water depth.

Answers

Answer:

Temperature decreases as depth increases (generally)

Explanation:

In general, sunlight will heat the upper level of water.  As you go deeper into the water, the sunlight cannot reach as easily so the temperature is lower.

There are exceptions considering underwater currents like the Gulf Stream or volcanic vents.

PLEASE ANSWER ASAP! <33 When the computer you are working on uses energy it also produces waste energy. What type of energy is this waste energy?
Chemical Energy
Thermal Energy

Answers

Answer:

thermal energy

Explanation:

computer produce thermal energy later brought out by exhaust fans...

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I need help
what force is needed to make a ball fall on earth if it had a mass of 13kg

I'd appreciate if someone could help me thank you ​

Answers

Newton's second law allows finding the answer for the force that attracts the body is 127.4N

Newton's second law indicates that the force that is the interaction between two bodies is directly proportional to the product of the mass and the acceleration.

            F = m a

Where the bold letters indicate vectors, F is the force, m the mass, and the acceleration of the body.

When a body is close to the Earth there is an interaction between the body and the planet, we call this interaction weight, it is given by the relationship

           W = m g

Where W is the force called weight, m ​​the mass of the body and g the acceleration of the body, which in this case is called the gravity acceleration   (g = 9.8 m / s²)

They indicate that the mass of the body is m = 13 kg, let's calculate the weight

           W = 13  9.8

           W = 127.4 N

In conclusion using Newton's second law we can find the answer for the force that attracts the body is 127.4N

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Determine the pressure due to water at the bottom of a tank which is 25 m deep and 4/5 full of water (density of water = 1000 kgm-3, g = 10 ms-2)

Answers

Answer:

c

Explanation:

ytkjsgxhxkvgakavsvdjddhdbiwbe vs

The pressure due to water at the bottom of the tank  is 200000 Pascal.

What is pressure?

It is the ratio between the force being applied and the surface area being applied to. The force delivered perpendicularly to an object's surface per unit area across which that force is dispersed is known as pressure.

Given parameters:

Depth of the tank = 25 meter.

Depth of water in the tank: d = 25×4/5 meter = 20 meter.

Density of water: ρ = 1000 kg/m³.

Acceleration due to gravity: g = 10 m/s².

Hence, the pressure due to water at the bottom of the tank

= depth of water (d) × density of water (ρ) × acceleration of the gravity (g)

=  20 meter × 1000 kg/m³ × 10 m/s²

= 200000 Newton/meter²

=200000 Pascal.

Hence, the pressure due to water at the bottom of the tank  is 200000 Pascal.

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An object has a volume of 100mL and a mass of 200g. What is the density?

Answers

the answer to your problem is p = 2 g/cm^3.

what 3 things are produced as a result of the fusion of two atoms

Answers

Answer:

Electron, proton and neutron

Explanation:

In each and every atom they are consist of electron, proton and neutron.

What is the density of an object that weighs 500 kg and has a volume of .4 cubic meters ?

Answers

Answer:

1250 for .4

125 for 4

Explanation:

[tex]p=\frac{m}{v}[/tex]

500/4 = 125

500/.4 = 1250



How many electrons have been removed from a positively charged electroscope if it has a net charge of 6x10-11?


answer and explain if u can pls :)

Answers

Answer:

is it the ans you are looking for

Write down the relation between force pressure and area​

Answers

Answer:

Answer: Pressure is directly proportional to force and inversely proportional to area.

Explanation: Pressure is defined as the ratio of force applied to the area of cross section.

Mathematically,

P=\frac{F}{A}P=

A

F

where,

P = Pressure

F = Force applied

A = Area of cross-section

from above it is visible that pressure is directly proportional to the force applied which means that if force increases, pressure increases. It is also inversely proportional to the area of cross-section. So, when area of cross-section increases, pressure decreases.

The units of pressure are N/m^2N/m

2

and S.I. units for this term is Pascal (P).

Guys please help me on the rest of the numbers

Answers

Answer:

C. 100

D.3

E. 33.3

Explanation:

C. Mechanical Advantage=Load / Effort

= 200N

--------

100N

Therefore,. = 100

D. I. Velocity Ratio= distance moved by the effort / distance moved by load

= 30cm/10cm

= 3

II. Efficiency= M.A / V.R

= 100/3

= 33.33

what is another name for the magnitude of the velocity vector

Answers

Answer:dddddddddddddddddddd

Explanation:

Which option is a key point of cell theory?
the answers are
1. Cells are the basic structural unit of all living organisms.
2. Some cells can burn food molecules to release energy, but some cannot.
3. Cells can repair neighboring cells, but not themselves.
4. All cells that make up an organism are similar to each other.
helppppppp I am doing a quiz

Answers

Answer:

1.Cells are the basic structural unit of all living organisms.

Answer:

It has three main parts:

1. All living things are made up of cells.

2. Cells are the basic building blocks of life.

3. All cells come from preexisting cells created through the process of cell division.

Explanation:

As science evolved, three more components were added to the theory. Some biology classes don’t require you to know these parts of the cell theory because they weren’t part of the original definition, but it’s still useful to be aware of them:

4. Energy flow occurs within cells.

5. Hereditary information is passed from cell to cell.

6. All cells have the same basic chemical composition.

So what does the cell theory actually mean? Let’s break it down. The first part of the cell theory states that all living things are made up of cells. Anything that’s alive, from bacteria to plants to humans, is composed of cells. And what are cells? The literal definition is a cell is a group of organelles surrounded by a thin membrane.

The cell theory definition states that cells are the building blocks of life. Cells both make up all living things and run the processes needed for life. Your hair, skin, organs, etc. are all made up of cells. In fact, each person is estimated to be made up of nearly 40 trillion cells! Each part of a cell has a different function, and your cells are responsible for taking in nutrients, turning nutrients into energy, removing waste, and more. Basically, everything your body does, it does because cells are directing the actionThe third part of the cell theory definition states that all cells come from preexisting cells. This means that cells don’t just appear out of thin air (known as “spontaneous generation”). New cells are always made from current cells. This means that all current life on the planet is descended from the very first cells, which first made an appearance on Earth roughly 3.5 billion years ago. Cells have been replicating themselves continuously ever since.

And what does the newer part of the cell theory state? Part four refers to the fact that, in all living cells, energy is continuously transformed from one type to another. Examples of these processes include photosynthesis (where plant cells convert light energy into chemical energy) and cellular respiration (where both plant and animal cells convert glucose into energy). Part five refers to DNA and the fact it is passed from parent cell to child cell. Finally, part six of the cell theory tells us that all cells are made up of the same chemicals: water, inorganic ions, and organic molecules.!

Convert milligram to 1 gram

Answers

Answer:

convert 1 milligram to 1 gram:

Explanation:

1 milligram is 0.001 gram.

so... 2 milligram is 0.002

3 milligrams is 0.003

and so on.

What causes the amount of gravitational force to change?

Answers

The mass of water moving around on Earth’s surface causes the amount of gravitational force.

Answer:

Mass and Distance

Explanation:

mass and distance affect the strength of gravitational force on an object.



A runner runs at a constant speed of 5 meters per second. They run for 10 minutes (600 seconds). How far did they travel during

those ten minutes?

Answers

300 meters because 5x600=3000 and 3000÷10=300 please someone check me for this answer

A Yugo can accelerate from rest to a speed of 28 m/s in 20 s. What is the average acceleration of the car? What distance does it travel in this time

Answers

Answer:

Explanation:

a=28/20

a=1.4 m/s²

V²=v0²+2a.D

28²=0+2x1.4D

784 = 2.8D

D = 280 m

NEED HELP!!!! 13 POINTS!!!!!!

Exercise builds muscles because it causes them to contract. If this is the case, would massage, which causes them to relax, also be a way of building muscle?

A.

No, massage does not have any health benefits.

B.

Yes, any working with muscles makes them stronger.

C.

Yes, massage begins when the muscles are very tight.

D.

No, the contraction is where building strength comes from.

Answers

Answer:

If I were you I'd go with B, it just seems to make the most sense to me out of these options.

which planet has a moon with many sulfur volcanoes?

Answers

Jupiter i hope it is right answer

can a system have kinetic and potential energy at the same time

Answers

Answer:

yes

Explanation:

...........................

If you push on a cart, the force of friction will slow it down. Friction is the conversion of kinetic energy to __________ .

Answers

Answer:thermal energy

Explanation:The friction converts kinetic energy to thermal energy (heat). When two objects are in contact, friction will act with these two objects so this...

Answer:

Heat

Explanation:

Friction always slows a moving object down. ... Friction can be a useful force because it prevents our shoes slipping on the pavement when we walk and stops car tyres skidding on the road. When you walk, friction is caused between the tread on shoes and the ground. This friction acts to grip the ground and prevent sliding.

True or false?

Inertia is related more to acceleration than an object’s mass.

Answers

Answer:

false

Explanation:

false

its making ne type an answer that is 20 characyers long lol

What is 4.33 and 2.16?

Answers

6.49 if your adding :)
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