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What is the gpe of a rock weighing 100N that is sitting on top pf a hill 300 m high?

Answers

Answer 1

Answer:

Gpe = 30000J

Explanation:

Given the following data;

Weight = 100N

Height = 300m

To find the gravitational potential energy (gpe);

Gravitational potential energy can be defined as an energy possessed by an object or body due to its position above the earth surface.

Mathematically, potential energy is given by the formula;

[tex] G.P.E = mgh[/tex]

Where,

G.P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per seconds square.

h represents the height measured in meters.

Gpe = mgh

But weight = mg = 100N

Substituting into the equation, we have:

Gpe = 100*300

Gpe = 30000J


Related Questions

Based from the flow chart, what can you generalize about the formation of typhoons? How do typhoons develop?

Answers

Answer: Warm water from the ocean is needed to develop typhoon

Pls Rate this as Brilliant Answer thank you :) keep on learning

Typhoons form when strong winds blow into warm areas of the ocean. These winds pick up moisture and rise, bringing colder air with them. This creates pressure, causing the winds to move quickly. The winds revolve or spin around a central point known as an eye.

What is typhoon ?

A typhoon is a mature tropical cyclone that forms in the Northern Hemisphere between 180° and 100°E. The Northwestern Pacific Basin is the most active tropical cyclone basin on Earth, accounting for nearly one-third of the world's annual tropical cyclones.

The Philippines is just above the equator and faces the western Pacific, with little else to absorb storm energy before it reaches land. Storms are fueled by warm, tropical waters, which produce approximately 20 typhoons per year.

Hurricanes and typhoons can wreak havoc on coastlines and hundreds of miles inland. They can generate winds of up to 155 mph, as well as tornadoes and microbursts.

Thus, Typhoons form when strong winds blow into warm areas of the ocean.

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write any four importance of pressure​

Answers

Answer:

Here is your ans

Explanation:

hope it helps you tq

What does it mean when the
compressions of a longitudinal
wave are far apart?
A. the amplitude is higher
B. the wavelength is longer
C. the wavelength is shorter
D. the amplitude is shorter

Answers

Answer:

it will option B,hope it helps

C. The wavelength is longer.

What is longitudinal wave?

A sound wave is called a longitudinal wave because compressions and rarefactions in the air produce it.

The air particles vibrate parallel to the direction of propagation.

A longitudinal wave consists of a repeating pattern of compressions and rarefactions.

Thus, the wavelength is commonly measured as the distance from one compression to the next adjacent compression or the distance from one rarefaction to the next adjacent rarefaction.

Longitudinal waves move through a medium from the point of the disturbance in the form of compressions (where particles of the medium are bunched together) followed by rarefactions (where particles of the medium are farther apart).

In longitudinal waves, the distance from one compression to the next is the wavelength.

Therefore,

In longitudinal wave the wavelength is longer.

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pls help i’ll give brainliest if you give a correct answer!!

Answers

Normal force. Normal force is always present when there is contact between two items. Normal force is counteracting the gravitational force.

Explaining the incorrect answers:
-It’s not frictional force because friction only occurs when something is moving and also making contact. While there is contact in this scenario, the apple is not moving.
-There is no applied force; that would be something like a push.
-There is a gravitational force on the table, but it doesn’t keep the apple’s push in check. They are both pointed downwards, to the earth.

Hope this helps!

Where did Ford first see parts made from vanadium steel?​ What properties of this steel impressed Ford? Did Ford need to overcome any problems before going ahead with his plan?

Answers

Explanation:

Historical sources believe that Henry Ford first saw parts made from vanadium steel in Europe which were been used on racing cars and luxurious vehicles.

Ford was impressed due to the fact that Vanadium steel unlike normal steel was cheaper and at the same time stronger and lighter if it was used on automobiles.

An airplane is flying at 80 kilometers per hour when a strong tail wind, traveling in the same direction at 5 kilometers per hour, hits the airplane. How can the net force acting on the airplane be calculated?


A. add the forces
B. subtract the forces
C. multiply the forces
D. divide the forces

Answers

Answer:

A.add the forces

Explanation:

since they're both going in the same direction then they should be added to get the total net force.

pls mark me brainliest

The net force acting on the airplane if, An airplane is flying at 80 kilometers per hour when a strong tailwind, traveling in the same direction at 5 kilometers per hour is 85 km/hr so, option A is correct.

What is force?

Force is the influence of either pull or pushes in the body. Basically, gravitation forces, nuclear forces, and friction forces are the types of forces.

For e.g. when the wall is hit by a hand then a force is exerted by the hand on the wall as well as the wall also exerts a force on the hand. There are different laws given to Newton to understand force.

Given:

An airplane is flying at 80 kilometers per hour when a strong tailwind, traveling in the same direction at 5 kilometers per hour,

Calculate the net force acting on the airplane as shown below,

The net force acting on the airplane = The velocity of the airplane + velocity of the wind  (As they both are in the same direction)

The net force acting on the airplane = 80 km / hr + 5 km / hr

The net force acting on the airplane = 85 km / hr

Thus, the net force acting on the airplane is added.

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plzz helpppp meee!!!!

A farmer cannot get his cow to move without help. The cow has a mass of 425 kg. He returns with some neighbors, and they are able to exert a net force of 900 N on the cow. What is its acceleration?​

Answers

A=f/m
A=900/425
A=2.18

To determine acceleration you divide the force by the mass.

Answer:

hhh

Explanation:

Ocean waves are hitting a beach with a frequency of 0.100 Hz. Their average wavelength is 15.0 m. What is their average speed?
What is the frequency of a pendulum that is moving at 30 m/s with a wavelength of 0.32 m?

Answers

Answer:

Average speed=1.5 m/s

Frequency of pendulum=93.75Hz

Explanation:

We are given

Frequency, [tex]f=0.100Hz[/tex]

Average wavelength =[tex]\lambda=15m[/tex]

Speed of pendulum, [tex]v=30m/s[/tex]

Wavelength, [tex]\lambda'=0.32m[/tex]

We have to find the average speed and frequency of pendulum.

We know that

Speed,[tex]v=\lambda f[/tex]

Using the formula

Average speed,[tex]v=15\times 0.1=1.5m/s[/tex]

Hence, the average speed =1.5m/s

Frequency, [tex]f=\frac{v}{\lambda'}[/tex]

Using the formula

[tex]f=\frac{30}{0.32}[/tex]

[tex]f=93.75Hz[/tex]

Hence, the frequency of a pendulum=93.75Hz

Which box depicts the simplest level of organization?
A) P
B) Q
C) R
D) S

Answers

Answer: C) R

Explanation: This answer is a cell, which is the smallest organism depicted. It would then go Q (tissue) which is made up of cells, then P) which is made of tissue, then S) the human body which is made of organisms, tissues, and cells.

The box that depicts the simplest level of organization is R. Thus, option C is correct.

What is cell ?  

Cell is defined as the structural and functional base of life and it has been the building block of all living things and the cell is surrounded by a protective membrane known as cell membrane.Prokaryotic cell is made up of single cell and found in unicellular animals.

Cell is generally of two types and these are eukaryotic as well as prokaryotic cell. Prokaryotic cell is made up of single cell and found in unicellular animals. The eukaryotic cell is made up of multiple cell and they contain cell organelles and these are present in multicellular animals.

The outermost part of brain has been known as dura mater that consist of a strong membrane layering and it is thick located just behind the skull and vertebral column.

Therefore,The box that depicts the simplest level of organization is R. Thus, option C is correct.

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Coulomb's Law says that the forces between any two charges depends ___________.

Question 7 options:
A. Directly on the size of the charges
B. Inversely on the square of the distance between the charges
C. Directly on the square of the distance between the charges
D. A&B
E. A/C

Answers

A
Hope this helps!!!!!!

Coulomb's Law says that the forces between any two charges depends directly on the size of the charges and inversely on the square of the distance between the charges. The correct option is D. A & B

Coulomb's law

From the question, we are to determine the correct option.

First, we will state Coulomb's law.

Coulomb's law states that the electrical force between two charged objects is directly proportional to the product of the quantity of charge on the objects and inversely proportional to the square of the separation distance between the two objects

That is,

[tex]F \propto \frac{Q_{1} Q_{2} }{r^{2} } [/tex]

Where F is the electrical force

[tex]Q_{1} \ and \ Q_{2}[/tex] are the charges

r is the distance between the objects

From the law, we can observe that the forces depends directly on the size of the charges - Option A

and the forces also depends inversely on the square of the distance between the charges - Option B

Hence, the correct option is D. A & B

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What will happen in the next moment for the girl on the swing?

1.Fill in wether quantities will increase, decrease, or stay the same.

2. Support your answer in the table below

Answers

Answer:

Increase, same, same

Explanation:

How does energy in the form of light photon travel through the many layers of the Sun?

Answers

Answer:Particles of light form from atoms undergoing nuclear fusion in the sun's innermost layer known as the core. The light then flows through the sun's interior for millennia, slowly bubbling up like water in a boiling pot. ... The view starts in the core of the sun where atoms fuse together to create light and energy.

Explanation: hope i helped

Light travels through the layers of the sun as particles called photons.

The sun is the principal source of energy in the universe. Energy from the sun is trapped by green plants and used in the process of photosynthesis.

Light travels through the layers of the sun as particles. These particles of light are called photons and they pass through the various layers of the sun.

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explain the following observation referring to the appropriate process of heat transfer in each case


two cups of tea are poured at the same time . they are left for 10 minutes . one of the cups has a metal teaspoon left in it . the tea in this Cup is cooler than the tea in the other Cup at the end of the 10 minute period



Please answer correctly
Please help me!
Will give the brainliest!​

Answers

If the two cups are the same/equal in all regards the spoon makes the difference in heat loss. Metal spoon is a good conductor, heat conducts up the spoon handle. Radiant and convection losses occur in the surrounding air. Metal becomes a “heat sink”.

Spoon will feel warmer to the touch than a pottery or foam cup that is not a good conductor.

Can somebody plz help me with this one the question is in the screen shot.

Answers

this is in order.

LANDFILL

GROUNDWATER

PESTICIDE

FERTILIZER

HAZARDOUS WASTE

SEPTIC SYSTEM

SEEPAGE

Please help. Will give branliest!!

Which action is an example of a force that operates at a distance.

A. A baseball thrown by a player.
B. A pebble falling to the ground
C. Fish swimming in the water
D. A sailboat sailing on a lake

Answers

An action which is an example of a force which operates at a distance is a pebble falling to the ground. Thus, the correct option is B.

What is force?

A force is an influence which can be changed upon with the motion of an object. A force can cause an object with some amount of mass to change the velocity of the object, i.e., to accelerate the object. Force can also be described as a push or a pull of the object. A force is a vector quantity because it has both the magnitude and direction.

A pebble falling to the ground level is an example of the force which operates at a specific distance. A force applied on the pebble covers some distance.

Therefore, the correct option is B.

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What is the only part in our body we do not stretch?

Answers

Answer:

The quadriceps consists of four muscles: the skinny rectus femoris and the three huge “vasti” — vastus lateralis/intermedius/medialis. The vasti are only elongated by knee flexion, which is limited to about 120˚ when the calf hits the hamstrings. The vasti cannot be stretched strongly.

Answer:Masseter and temporalis

Why it’s unstretchable: The jaw can only open so far.

Why it’s a dang shame: Jaw tension is epidemic, and trigger points in these muscles cause a wide array of strange face and head pains, including toothaches, headaches, and earaches.

if a town was 90 miles away and you travel at 45 mph how long would it take to get there

Answers

Answer:

t = 2 hours

Explanation:

Given that,

Distance of the town, d = 90 miles

Speed, v = 45 mph

We need to find the time to get there. The speed of an object is given by :

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

Where

t is time

[tex]t=\dfrac{d}{v}\\\\t=\dfrac{90}{45}\\\\t=2\ h[/tex]

So, the required time is 2 hours.

(95kg)x(-6.549m/s)
I will give you 23 points if you answer this question

Answers

Answer:

-622.155N

Explanation:

I'm not entirely sure what physics you're doing but uh alright.

What is the main reason people and bears slip and fall on ice, be careful when outside in the snow/ice.

Answers

Answer:

Both ice and snow have a lower coefficient of friction in comparison with grass, wood or pavement.

Explanation:

The main reason why people and bears, slip and fall on ice/snow is that both ice and snow have a lower coefficient of friction in comparison with grass, wood or pavement. We present below a comparative chart of coefficients of friction associated with different materials:

Material       Coefficient of Friction - Static                  

Ice/Snow                   0.05 - 0.3

Wood                          0.2 - 0.6

Asphalt                        0.5 - 0.7

Grass                            0.3 - 0.5

pls help i’ll give brainliest if you give a correct answer!!

Answers

Answer:

South ....................

Answer:

South ;)

Explanation:

I just did it .

Two spheres are moving towards each other. Which of the following is the
best evidence that the spheres have transferred energy from one to the other?

A.The friction of the surface decreases

B.Gravity is always acting on the spheres

C.The motion of the sphere changes

Or

D.Both of the spheres have the same mass

Answers

Answer:

D

Explanation:

If they are both moving at the same speed then its D.

Mercury has a radius of 2.43x10^6 m, and a mass of 3.2x10^23 kg, what is Mercury's acceleration due to gravity?

Answers

I think that you need the gravitational acceleration of mercury

so we will use Newton's gravitational law :

gravitational acceleration = [tex]\frac{G * m}{r^{2} }[/tex]

G is the gravitational constant = G = 6.673×10^-11 N m^2 kg^-2

after substitution :

6.673×10^-11 * 3.2x10^23 / (2.43x10^6)^2

using calculator :

gravitational acceleration of mercury = 3.61625 m/s^2

pls give me brainliest

Please help with this !!!!!!

Answers

Answer:

answer is d from my guess

10 POINTS and WILL MARK AS A Brainlest PLEASE

Answers

Answer:

240 cm/sec

Explanation:

The speed line is closest to 240sec at 60cm.

Hope this helps! :)

240 cen/ sec :)))))

An object horizontally dragged across the surface by a 100 N force acting parallel to the surface . Find out the amount of work done by force in moving the object through a distance of 8 m

Answers

Answer:

800J

Explanation:

Given data

Force= 100N

Distance moved= 8m

The expression for the work done is

WD= Force* distance

substitute

WD= 100*8

WD= 800Joules

Hence the work done is 800J

Which of the following is a variable property for a gas? Select all that apply.

shape
mass
volume
density

Answers

Answer:

volume

Explanation:

mass density and shape are not variable to my view.

pressure volume

number of moles and temperature are variable

Consider two equally charged objects separated by a short distance.  According to Coulomb’s Law, how does doubling the charge on one object affect the electric force present between two charged objects

Question 4 options:
A. results in one-half of the original electric force
B. results in one-fourth of the original electric force
C. increases the electric force by a factor of four
D. double force by a factor of four

Answers

Answer:

Coulomb's Law states

F = K Q1 * Q2 / R^2      where K is the force constant

F2 / F1 = 2 Q1 * Q2 / (Q1 * Q2) = 2   where one of the charges is doubled

So the force will be doubled  (D looks rather vague but it cannot be the other three)

Which of the following Resistors A, B, C or D, would use the least power? Make
your claim, give evidence and explain your reasoning. You may use math to support
your claim.
Please Help.

Answers

i think the answer is D 10.0

PLEASEEE HURRY!!
Can you tell me How the sun is responsible for all of the energy here on Earth?

Answers

Answer:

Explanation:

All of the energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum. Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays.

pls help i’ll give brainliest if you give a correct answer!!

Answers

Answer: the last one

Explanation:

Answer:

C

Explanation:

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