In many areas electricity is produced by huge generators close to dames. What function does a large volume of moving water have in generating electricity?
Answer:
To increase the volume of moving water, impoundments or dams are used to collect the water. An opening in the dam uses gravity to drop water down a pipe called a penstock. The moving water causes the turbine to spin, which causes magnets inside a generator to rotate and create electricity.
What is the gravitational potential energy of a tiger that weighs 200 N standing on a rock that is 2 m above the ground?
Jack travels 80 km in 50 minutes. What is his speed in m/s?
Answer:
1.6 m/s?
Explanation:
80 ÷ 50 = 1.6 m/s
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which kind of scientist is most likely to study matter and the different ways it can
change?
A. Astronomer
B. Chemist
C. Zoologist
D. Surgeon
A car is driving along a road at a speed of 50 km/hr. How far will the car travel in 5 hours?
Answer:
I think it's 250
Explanation:
If the car is traveling 50 km/hr that means every hour, the car drives 50 km. So if you want to know how far it will go in 5 hours you do 50x5.
What confirms that the process of seafloor spreading is occurring?
what’s the equation for this
Please Please Please help on these 3 questions :) 20 POINTS!! - NO LINKS PLEASE
What are the forces applied to a catapult while it's on the ground?
What forces are applied to the catapult itself?
What forces are applied to the marshmallow (object being launched)?
Please answer them all to get Brainliest!!
Answer:
Catapult on the ground: Normal, gravity
Catapult (I'm assuming launching marshmallow): Reaction of Force Applied
Marshmallow: Force Applied
Explanation:
This is the forces that act on a stationary object and a launched object. The catapult may also experience a force friction if your teacher is taking a more practical sense.
A measure of the body's resting energy expenditure based on data that is collected four hours after eating or physical activity is called the _________?
What is the mass of an object travelling at 25 m/s with a kinetic energy of 3775 J?
Answer:
You can do 6516-3775=2741The difference is 27141 kilometersDid this help?⇒ Yes or No?You travel 200 m in 120minutes. What is your speed in miles per hour?
Answer:
100
Explanation:
60 minutes is an hour and there are 120 minutes so there are 2 hours. You divide 200 m by 2 and you get 100.
A small dog walks 12 meters east and then 5 meters north. How many meters is the dog from her starting position?
Answer:
17 meters
Explanation:
because 12 meters +5 meters =17 meters
Give reasons why water should not be used in liquid-glass thermometer
Answer:
one of the reasons is that it wets the glass thermometer it also doesn't detect slight changes in temperature of the atmosphere it has a high boiling point I don't know the rest
How many seconds are in a day?
Answer:86,400
Explanation:
the moon orbits our earth. the opposite would never be true: the earth would never orbit the moon. one reason is due to the force of gravity. the object _________ has a greater gravitaional force and that determines what satelites orbit around it.
Answer: The moon keeps the same face pointing towards the Earth because its rate of spin is tidally locked so that it is synchronized with its rate of revolution (the time needed to complete one orbit). In other words, the moon rotates exactly once every time it circles the Earth.
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if u report your a b/i/t/c/h
Answer:
hai >.<
Explanation:
Answer:
hello!
Explanation:
~evita
A marble is thrown horizontally with a speed of 15.0 m/s from the top of a building. When it strikes the ground, the marble has a velocity that makes an angle of 65.0° with the horizontal. From what height above the ground the marble was thrown. How far from the base of the building, did the marble land?
What causes the apparent colors of the objects we see?
Answer: The human eye and brain transform light into color. Allowing us to see them.
Explanation: Light receptors within the eye turn light into color. The color that is reflected off of an object, is what we see. Hope this helps.
The apparent colors of the objects we see causes due to reflection of the light which they absorb and emit.
What is reflection?Reflection is the change in direction of a wavefront which occurs at an interface present between the two different media so that the wavefront of the wave returns into the medium from which it has been originated. Common examples of reflection include the reflection of light, sound wave and water waves.
The color of an object is the wavelengths of light waves that it reflects. The reflection is determined by the arrangement of electrons in the atoms of that substance which will absorb and re-emit photons of particular energy levels according to the quantum laws.
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6. Ella holds an ice cream cone in her hand. She soon notices that her hand begins
to feel cold. What is different about the particles that make up her hand?
A They are getting larger.
B They are gaining average energy.
C They are moving slower on average.
D They are joining together.
Answer:
C
Explanation:
the ice cream is transferring the coldness into her hand and slowing down the particles. hot means they move faster, cold is to slow down
4
At which position is the roller coaster car's
amount of potential energy about equal to
the amount of kinetic energy?
(F) Position A
G.Position B
H) Position ©
Position
I.Position D
a student stands on a metric scale, his weight is 490 N. then another student hands him a 5.00-kg mass to hold. the force shown on the scale is now
Answer:
539.04 N
Explanation:
5kg is approximately 49.04 newton's so add 49.04 to 490 and you get 539.04 N
Which of the following best describes why tidal energy is considerd a renewable resorce?
Answer:
It is green. Aside from being renewable, tidal energy is also an environmentally friendly energy source because it does not take up a lot of space and does not emit any greenhouse gases.
Explanation:
A jet plane can travel at a speed of 600 km/h. How far will the jet travel if it flies at full speed for 2 hours?
Answer:
that jet will fly 1200 km in 2 hours
Which are disadvantages of series circuits? Check all that apply.
They are easy to design and build.
They are complicated to design and build.
A break in one wire causes all current to stop.
Current can flow through other branches if there is a break in one branch.
If one bulb goes out, the others stay lit.
If one bulb goes out, the others go out.
Answer:
C and F
Explanation:
A break in one wire causes all current to stop.
If one bulb goes out, the others go out.
The disadvantages of series circuits:
A break in one wire causes all current to stop.
If one bulb goes out, the others go out.
What is a series connection ?
In a series connection, the current is the same through each component regardless of what components are used or their values. The voltage drops across each component in the circuit are dependent upon the values of the components used in the circuit.
since , a series connection is an end to end connection and their are no branches in a series combination .
This is why , current never divide in a series connection , only voltage get divided , current in whole circuit remains same as the current across each device attached in the circuit .
correct options will be :
A break in one wire causes all current to stop.
since , their is no branching , if their occur any breakage the current in the whole circuit will stop
If one bulb goes out, the others go out.
As we know if their occur any breakage in the circuit the current in the whole circuit will stop, due to which current will not reach to the bulbs , hence other bulbs too go out and wont glow
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What types of energy transformations take place when a balloon lights a light bulb?
It's the space between two object
5 Letter word
Answer:
Matter? Atoms? Oxygen Molecules?
What type of collision conserves total system kinetic energy?
Answer: Elastic collision
Explanation:
In an elastic collision there is no loss of kinetic energy as a result of the collision
PLS HELP MEH!!!!
Sound travels fastest in
a) air
b) water
c) glass
d) diamond
WILL MARK BRAINLIEST IF ANSWER
Answer:
hope this helps
Explanation:
Of the three phases of matter (gas, liquid, and solid), sound waves travel the slowest through gases, faster through liquids, and fastest through solids
so your answer would be B.
What is the acceleration of a 5.9 kilogram bowling ball if a force of 11 N is applied to it?
Answer:
1.86 [tex]m/s^{2}[/tex]
Explanation:
Acceleration = [tex]\frac{Force}{mass}[/tex]
Force = 11N
Mass = 5.9 kg
∴ Acceleration = [tex]\frac{11}{5.9}[/tex]
= 1.86 [tex]m/s^{2}[/tex]
Kelly sits on a rock in a field. Which of the following examples correctly name force pairs? Select all that apply.
А
Kelly pushes on the rock, and the rock pushes on Earth.
B
Earth pulls on Kelly, and Kelly pulls on Earth.
с
The rock pushes on Earth, and Earth pulls on the rock
D
Kelly pushes on the rock, and the rock pushes on Kelly.
Answer:
A
Explanation: