Because of friction...
A. energy is always not conserved
B. not all potential energy is converted into kinetic energy
C. all of an object's kinetic energy turns into potential energy
D. all of an object's potential energy turns into kinetic energy
Answer:
Because of friction , B. not all potential energy is converted into kinetic energy.l hope it helps
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.
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.
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To what physical quantity do ampere-hours correspond, and what relationship do ampere-hours have to energy content?
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."
As the Earth orbits the Sun, it gets closer to the Sun at times. This is what causes summer.
A. True
B.false?
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
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
the secont line is correct
This is my last assignment plz help
Answer:
d
Explanation:
Humans use surface freshwater for
there's more than one answer
agriculture
driving
factories
swimming
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.
Answer:
Obstructions can happen. Outside forces can act upon it.
Explanation:
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
Answer:
Selective Breeding
Explanation: It's selective breeding because the chicken being breeded by the farmer can produce wayyyyy more eggs.
What net force acting on a 14 KG wagon produces an acceleration of 1.5 MS^2?
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
How does gravity affect an object?
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.
HELPPP WILL GIVE BRAINLIEST!!!
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
Good Luck! And Happy Weekend!
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.
which gas is at room temperature?
A (aluminum
B ( nitrogen
C ( potassium
D ( sodium
Answer:
B ( nitrogen
Explanation:
it is at room temperature
Which point or points on the image below show constructive interference of light? *
C
A
D
B
E
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
Answer:
IT doesnt push down because the lawnmower has wheels and the ground is hard
Explanation:
Branliest
The part of Earth that is facing the sun is going through the season of summer. Describe where Earth will be positioned the following summer.
Earth will be above the sun the following summer.
Earth will be in the same location the following summer.
Earth will be on the opposite side of the sun the following summer.
Earth will be underneath the sun the following summer.
Answer:
Dont worry about that first guy. I dont care about points just wanna help! Anyway the answer would be B
Explanation:The eart runs on an axis around the sun and would follow that axis for the following summer
can somebody help me out with this
Answer:
Lifeless because of the lack of rain
The kinetic energies of particles in a sample of matter are increasing. This sample is most likely
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.
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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.
Answer:
The Earth is toward the sun
Explanation:
DONT LISTEN TO ME I AM A CHILD AND I JUST GUESSED
What happens if two plates move away from each other?
Answer:
They will sometimes crash into other plates in the process and will rub while they are moving creating earthquakes
Explanation:
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.
Answer:
think its A hope im right
PLEASE HELP ME
If we did use zero-friction machines for these purposes, how would our everyday lives change?
Why do you sometimes get shocked by static electricity? Explain how it happens and give an example.
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.
what would be a very very very very very GOOD science project the the COUNTY SCIENCE FAIR!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer: juice powered machine
Explanation:
It would be very fascinating
What is some relaxing no distraction studying music. None of the music I use helps. :|
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