Answers
b) W = fd = 600 x 10 = 6000J
c) chemical to gravitational potential via the mechanical pathway
4a) W = fd = 200 x 0.5 = 100J
b) chemical to kinetic via mechanical pathway
5a) F = W/d = 40000/20 = 2000N
b) some is transferred into the thermal store, some is dissipated into the surrounding
Answer:
3a) w = mg = 60 x 10 = 600N
b) W = fd = 600 x 10 = 6000J
c) chemical to gravitational potential via the mechanical pathway
4a) W = fd = 200 x 0.5 = 100J
b) chemical to kinetic via mechanical pathway
5a) F = W/d = 40000/20 = 2000N
b) some is transferred into the thermal store, some are dissipated into the surrounding
Explanation:
Related Questions
How does gravity affect an object?
Answers
Answer:
it is a downward force
Explanation:
e.g: keeping humans on earth
Answer:
by gravitational force
Explanation:
The size of the gravitational force is proportional to the masses of the objects and weakens as the distance between them increases. Both objects exert an equal attractive force on each other: a falling object is attracting the Earth with the same size force as the Earth is attracting it.
An object, once set in motion, will tend to move in a straight line and at a constant speed. But the law (The Law is Newton's First Law.) isn’t always true. Explain why.
Answers
Answer:
Obstructions can happen. Outside forces can act upon it.
Explanation:
HELPPP WILL GIVE BRAINLIEST!!!
Answers
Answer: C
Explanation: As the universe stretches it expands more and more the distance between each other. Hope this helps.
Answer:
i think d is the answer
Explanation:
because if the balloons are together than how are you going to tell witch direction they go in
which gas is at room temperature?
A (aluminum
B ( nitrogen
C ( potassium
D ( sodium
Answers
Answer:
B ( nitrogen
Explanation:
it is at room temperature
a lawn mower is pushed with a force of 50n. if the angle between the handle of the mower and the ground is 30°. why doesn't the lawn mower move forward instead of downward
Answers
Answer:
IT doesnt push down because the lawnmower has wheels and the ground is hard
Explanation:
Branliest
What net force acting on a 14 KG wagon produces an acceleration of 1.5 MS^2?
Answers
Answer:
The wagon exerts a force of 21 Newtons
Explanation:
Force is equal to mass times acceleration, a Newton being 1 kg×m/². As we're given both the mass and the acceleration, all we need to do is multiply them to find the force applied:
14 kg × 1.5m/s²
= 14 × 1.5 kg × m/s²
= 21 N
Describe why the shape of the moon appears to change over time.
A)The moon is changing shape as it orbits around Earth and the sun.
B)The moon creates more light as it changes its position around Earth.
C)The sun orbits Earth, giving off different amounts of light to the moon.
D)The sun is lighting up different parts of the moon during the moon's orbit around Earth.
Answers
Answer:
think its A hope im right
What happens when a light beam passes from air into water? Select all that apply. *
the light wave slows down in water
refracted light bends in the water
some of the light is reflected off of the surface
total internal reflection
the light wave speeds up in water
Answers
the secont line is correct
describe the role of plate tectonics in earthquakes
Answers
Answer:
Tectonic plates are constantly moving slowly, sometimes friction between them to lock together and become unable to move.
Explanation:
what is the end result of a chemical reaction(As it pertains to the properties of the substances made)
Answers
Answer:
Chemical changes are also known as chemical reactions. The “ingredients” of a reaction are called reactants, and the end results are called products.
Explanation:
2. a new color
3. bubbles/ air is produced
4.change in shape
A car moves north at 12 miles per hour.
Which option describes if the given value is speed or velocity?
speed, because there is a mention of time
velocity, because there is a mention of time
speed, because there is a specific direction
velocity, because there is a specific direction
Answers
PLEASE HELP ME
If we did use zero-friction machines for these purposes, how would our everyday lives change?
Answers
Fred spends most Sunday afternoons at rest on the sofa, watching pro football games and consuming large quantities of food. What effect (if any) does this practice have upon his inertia? Explain.
Answers
Fred will increase his mass if he makes a habit of this.
What happens if two plates move away from each other?
Answers
Answer:
They will sometimes crash into other plates in the process and will rub while they are moving creating earthquakes
Explanation:
can anyone help me with this??
Answers
Answer:
its not clear enouph
Explanation:
help pls, answer for brainlist
Answers
Answer:
C for the first question. C for the second ( i think ) I searched the third up it should be C again ( ikr CRAZY 3 c's ) B I think for the fourth one and D for the last question.
IF ANY OF THESE ARE WRONG I DEEPLY APOLOGIZE MY HEAD IS HURTING FROM THIS ALREADY
It appears as though the moon disappears and the sun comes out in the daytime. Based on what you know, explain why this is happening in the daytime.
Earth is rotating toward the sun.
Earth is rotating away from the sun.
The moon is rotating away from the sun.
The moon is rotating towards the sun.
Answers
Answer:
The Earth is toward the sun
Explanation:
DONT LISTEN TO ME I AM A CHILD AND I JUST GUESSED
The kinetic energies of particles in a sample of matter are increasing. This sample is most likely
Answers
Answer:
The sample is most likely gaining thermal energy
Explanation:
If the kinetic energies of particles in a sample of matter are increasing, the sample is a liquid that is warming.
All particles have energy, and the energy varies depending on the temperature of the sample of matter. Solid particles have the least amount of energy, and gas particles have the greatest amount of energy.
The temperature of a substance is a measure of the average kinetic energy of the particles.
If the kinetic energies of particles in a sample of matter are increasing, the sample is a liquid that is warming.
Find out more at: https://brainly.com/question/1902353
This is my last assignment plz help
Answers
Answer:
d
Explanation:
Properties of Light please help me
Answers
Answer:
The primary properties of visible light are intensity, propagation-direction, frequency or wavelength spectrum and polarization, while its speed in a vacuum, 299 792 458 m/s, is one of the fundamental constants of nature.
Why do you sometimes get shocked by static electricity? Explain how it happens and give an example.
Answers
Answer:
That tiny shock you feel is a result of the quick movement of these electrons. You can think of a shock as a river of millions of electrons flying through the air. ... Static electricity happens more often during the colder seasons because the air is drier, and it's easier to build up electrons on the skin's surface.
Explanation:
Don't copy excatly but here it is.
Good Luck! And Happy Weekend!
Answers
Circle the scenario that shows balanced forces and will result in no movement of the gold bar.
Answer :1st one is the scenario that shows balanced forces and will result in no movement of the gold bar. (circled in attachment)Explanation :In the first scenario there are equal forces of 5N acting on both sides of the gold bar, but this is not the case for the second and third scenarios. Equal forces are acting on both sides of the bar in the first scenario, hence showing balanced forces and resulting in no movement of the gold bar.
Describe the role of plate tectonics for volcanic eruptions, continent formation, seafloor spreading, and mountain formation.
Answers
Answer:
Plate tectonics are responsible for the following events by:-
Explanation:
Plate tectonics are parts of the crust which is moved by the mantle of the Earth.
The Crust is divided into parts called "Tectonic Plates"!
When tectonic plates move they cause some sorts of anomalies, and some of those anomalies are the ones in the question.
When there are two tectonic plates move towards each other, they form mountains, or when wo tectonic plates move away from each other, they cause the sea floor to expand!
Sometimes, they can cause dangerous accidents because of the vibration of the tectonic plates. These vibrations can cause volcanic eruption and tsunamis and Earth quakes.
When these volcanic eruptions occur, they can form underwater volcanoes, and make new islands, which can lead to continent formation!
I hope this answer helps, and I also hope this answer is what you are looking for!
As the Earth orbits the Sun, it gets closer to the Sun at times. This is what causes summer.
A. True
B.false?
Answers
The earth rotates while orbiting around the sun causing summer.
Answer:
true heres why
Explanation: because you feed the butterfly falafel again with a sock from a froot loops box
and you made something come out of your but
Fireworks twinkle bright colors when ? react with oxygen?
Answers
What percentage of Earth is covered with water?
97
70
3
3.5
20
69
Answers
Answer:
70 percent
Explanation:
the answer is 70 percent
Answer:
70%
Explanation:
It's about 71% so to round it, it would be about 70%
Which of the answer choices is a true statement? Select all that apply. Nonmetals usually exist as molecules, combining with atoms of themselves. Nonmetals can exist on their own as individual atoms. Metallic elements usually exist as molecules, combining with atoms of themselves. Metallic elements can exist on their own as individual atoms.
Answers
Nonmetals usually exist as molecules, combining with atoms of themselves and Metallic elements can exist on their own as individual atoms. therefore the correct options are options A and option D
What is a molecule?The smallest component of a material that still has its content and characteristics is called a molecule. It is constructed of two or more atoms connected by chemical bonds. Moles are the foundation of chemistry. Molecules are designated by their elemental symbol and a subscript denoting their atom count.
Atoms are the fundamental unit of an element. They consist of a nucleus and surrounding electrons. When an atom has an incomplete electron shell, it is said to have valence electrons.
Thus,Metallic elements can exist alone as individual atoms, while nonmetals typically exist as molecules that combine with other atoms of the same type. Therefore, options A and D are the best choices.
Learn more about molecules from here
brainly.com/question/28060128
#SPJ2
To what physical quantity do ampere-hours correspond, and what relationship do ampere-hours have to energy content?
Answers
Answer:
"The ampere-hour corresponds to the unit of electric charge. The ampere-hour is the current transferring one charge in one hour. The ampere hour can be used to express the energy require to move a current of 1A in a hour. The quantity is related to electric charge and the energy in a battery."
4. Today, farmers breed chickens to have extra-large muscles and to lay of eggs. A wild fowl-a chicken that lives in the woods--lays between 20 and 30 eggs per year. In contrast, a chicken bred by famers can lays many as 300 eggs per year. This idea can be best explained by-
A. Evolution
A. Evolution
B. natural selection
B. natural selection
C. Selective Breeding
C. Selective Breeding
D. Survival of the fittest
D. Survival of the fittest
Answers
Answer:
Selective Breeding
Explanation: It's selective breeding because the chicken being breeded by the farmer can produce wayyyyy more eggs.
Which point or points on the image below show constructive interference of light? *
C
A
D
B
E