Answer:
It means that 80% of our effort is converted to useful whereas 20% of our effort is wasted to overcome frictional and gravitational force.
Answer:
It means that the total energy produced by the machine is 80 percent and remaining 20 percent is wasted in the term of heat deu to friction.
Hope it is helpful !
If the weight of displaced liquid and the weight of an object are the same, the object will:
(A) sink
(B) float
(C) float, but partially submerged
Answer:
c
Explanation:
I think but if I'm wrong I'm sorry
Answer:
i think its float
Explanation:
Human activities can have positive and negative effects on the environment Humans can benefit natural areas by CA throwing waste products in these areas. B. removing all the vegetation from these areas. c. polluting the areas by burning fossil fuels. D. preserving the natural resources that they provide
Answer:
D
Explanation:
Clearly you can't help the environment by throwing waste in the area, polluting it, or burning it all up, so D would be our only option.
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In what ways are plasmas similar to gases? What makes plasmas different than gases?
Answer:
Like gases, the particles in plasmas are constantly moving at high speeds, and do not have a definite shape or volume. Plasma is formed when the kinetic energy of the molecules in a gas gets very large and the temperature gets very high. This causes electrons to be released by the atom, creating ionized particles, which are positive ions and negative electrons.
Explanation:
Sample Response <3.
What force is required to accelerate a 6 kg bowling ball at 2 m/s/s forward?
Answer:
12N
Explanation:
Force = mass * acceleration.
6 * 2 = 12
Taking into account the Newton's second law, the force required to accelerate a 6 kg bowling ball at 2 m/s² forward is 12 N.
In first place, acceleration in a body occurs when a force acts on a body. There are two factors that influence the acceleration of an object: the net force acting on it and the mass of the body.
Newton's second law states that this force will change the speed of an object because the speed and / or direction will change. These changes in velocity are called acceleration.
So, Newton's second law defines the relationship between force and acceleration mathematically. This law says that the acceleration of an object is directly proportional to the sum of all the forces acting on it and inversely proportional to the mass of the object.
Mathematically, Newton's second law is expressed as:
F= m×a
where:
F = Force [N] m = Mass [kg] a = Acceleration [m/s²]In this case, you know:
F= ? m= 6 kg a= 2 m/s²Replacing:
F= 6 kg× 2 m/s²
Solving:
F= 12 N
Finally, the force required to accelerate a 6 kg bowling ball at 2 m/s² forward is 12 N.
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brainly.com/question/23845187?referrer=searchResults brainly.com/question/13959891?referrer=searchResultsWhich event causes the least amount of time to go by on the game clock?
Question 3 options:
A three-point shot
A bounce pass
A free throw
An alley-oop
The event that causes the least amount of time to go by on the game clock is a free throw.
In basketball, a free throw is an unhindered shot made from behind a set line.This throw (free throw) is produced because of a foul caused by an opponent.The obtention of free throws can be a strategy to win a game.In conclusion, the event that causes the least amount of time to go by on the game clock is a free throw.
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Ms. Kasper is in a panic. Her cat, Penny, is stuck in a tree and about to jump out. In order to save her cat, Ms. Kasper needs to run to the tree, 12 meters away. If it takes her cat, 3 seconds to fall, how fast would Ms. Kasper have to run to save her cat?
Answer:
Speed greater than 4 m/s
Explanation:
Given that Ms. Kasper is in a panic. Her cat, Penny, is stuck in a tree and about to jump out. In order to save her cat, Ms. Kasper needs to run to the tree, 12 meters away. If it takes her cat, 3 seconds to fall, how fast would Ms. Kasper have to run to save her cat?
The distance = 12 m
Time = 3s
Speed = distance/time
Speed = 12/3
Speed = 4 m/s
Ms Kasper must run at speed more than 4m/s for her to save the cat.
The results of a dart game were precise but not accurate. The accepted value of the game was the center of the dartboard. Which correctly describes the results? All of the darts hit the center of the board. Some of the darts hit the center of the board. The darts hit the same general area of the board. The darts hit very different areas of the board.
Answer:
The darts hit very different areas of the board.
Explanation:
The bullseye is the point at which darts are most accurate. There is no accuracy nor precision if the darts are neither close to the target nor to one another.
What is dart precision?The degree of similarity between several measurements is known as precision.
Even if the measurements are not exactly the right value, they are very reproducible.
Throwing darts at a dartboard can be used to demonstrate accuracy and precision.
There is precision but not accuracy if every dart lands distant from the bulls-eye but extremely closely spaced apart.
In contrast to a dart that lands far from the bulls-eye, which shows poor accuracy, a dart that hits the bulls-eye is very accurate.
Therefore, The board was struck by the darts in a variety of ways.
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if a object falls from 5 meters how long did it take for it to reach the ground explain(gravity= -10)
Explanation:
[tex]time \: period = \sqrt{ \frac{2h}{g} } = \sqrt{ \frac{10}{10} } = 1sec[/tex]
Question 10 of 15
Which of the following are not phases of matter?
A. Gas
B. Mixture
€. Liquid
D. Compound
E. Solid
Answer:
B. and D.
Explanation:
phases of matter are solid liquid and gas
Answer:
b and d
Explanation:
phases are solid liquid and gas
Why is the pressure so high deep inside the outer planets?
Answer:
they a giant ball of gases, so the answer is they have very large gas masses
Explanation:
Answer:
get G OA S S E d
Explanation:
d gasses are large
Love, which can’t be observed or measured directly, is an example of a psychological construct. true or false
Answer:
The answer is True
Love, which can’t be observed or measured directly, is an example of a psychological construct.
Explanation:
On edge 2020
explain at least two differences between justice system laws and scientific laws.
What is the phase of water when its temperature is 150 °C?
A. Solid
B. Liquid
C. Gas
D. None of the above.
Answer:gas
Explanation:
The phase of water when its temperature is 150 °C is gas. Hence, option (C) is correct.
What are the phases of substance?Phase is a term used in thermodynamics to describe an amount of matter that is chemically and physically uniform or homogeneous, can be mechanically separated from a nonhomogeneous mixture, and may consist of a single material or a combination of substances.
Although crystalline, colloid, glassy, amorphous, and plasma phases are thought to exist, the three basic phases of matter are solid, liquid, and gas (vapor). A phase change is defined as the transformation of a phase from one form to another.
As the boiling point of water is 100° C, the phase of water when its temperature is 150 °C is gas. Hence, option (C) is correct.
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Think and discuss: Why do you think the rate of temperature change does not stay constant over time? If possible, discuss your answer with your teacher and classmates.
Because the temperature of the place its contained in is constantly changing, for example, if you put a room temperature item in the fridge it will become cold, or whatever the temperature you set your fridge to.
Variation in the factors of climate leads to variable temperature around the world.
The rate of temperature change does not stay constant over time because of changes occur in the climatic factors. The climatic factors such as latitude, elevation, nearby water, ocean currents, topography, vegetation, and prevailing winds can't remain constant which leads to variable temperature in different regions of the world.
The temperature will remain the same if all the world has same environmental conditions so we can conclude that variation in the factors of climate leads to variable temperature around the world.
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The world record for the fastest train on Earth was set by abullet train from Tokyo to Osaka in Japan. Without passengers,it can travel at a speed of 300 km/hr. How many centimeters
per second can it travel?
cm/sec. *round to nearest whole number *
Answer:
8333
Explanation:
300km/hr = 300/60 = 5 km per min
5km/min = 5/60 = .08333333km per sec
km to cm = 100000, so
.083333 * 100000 = 8333
The train would travel at a speed of 8333.33 centimeters/second.
What is speed?The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object. The unit of speed is a meter/second. The generally considered unit for speed is a meter per second.
As given in the problem the world record for the fastest train on Earth was set by a bullet train from Tokyo to Osaka in Japan. Without passengers, it can travel at a speed of 300 kilometers/hour,
1 kilometer = 1000 meters
1 meter = 100 centimeters
300 kilometers = 300×100000 centimeters
the speed of the fastest train = 300×100000 centimeters /3600 seconds
= 8333.33 centimeters/second
Thus, the speed of the fastest train would be 8333.33 centimeters/second
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Where does the energy of plasma come from?
Answer:
El plasma es un estado de la materia que se caracteriza por su alta energía e inestabilidad. La energía del plasma, entrando en contacto con la superficie de materiales sólidos – plásticos o metales – modifica sus propiedades fundamentales, como por ejemplo la tensión superficial.
Explanation:
Plasma – el cuarto estado de la materia
A través de aportación de energía se cambia el estado de la materia: de sólido a líquido y de líquido a gaseoso. Si al gas se aporta energía adicional, éste se ioniza, es decir, que por la mayor energía el gas se convierte en plasma - el así llamado “cuarto estado de la materia”.
Answer: I translated it
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Plasma is a state of matter that is characterized by high energy and instability. The energy of the plasma, coming into contact with the surface of solid materials - plastics or metals - modifies their fundamental properties, such as surface tension.
Explanation:
Plasma - the fourth state of matter
Through the contribution of energy, the state of matter is changed: from solid to liquid and from liquid to gas. If additional energy is supplied to the gas, it is ionized, that is, due to the increased energy the gas is converted into plasma - the so-called “fourth state of matter”.
Cuts are ________, meaning an injury to the skin and the soft tissue underneath it.
A. contusions
B. lacerations
C. abrasions
D. bruises
Answer:
lacerations
Explanation:
Answer:
B. lacerations
Explanation:
A P E X!
How many significant figures?
5.0001
O None of these are correct
O 5
02
0 1
5
if zero falls between two significant numbers it becomes significant.
what test is an aptitude test
An aptitude test is a systematic means of testing a job candidate's abilities to perform specific tasks and react to a range of different situations. The tests each have a standardised method of administration and scoring. The results are quantified and compared with all other test takers.
Answer:
Hi There!
Explanation:
An aptitude test is a systematic means of testing a job candidate’s abilities to perform specific tasks and react to a range of different situations. The tests each have a standardised method of administration and scoring, with the results quantified and compared with all other test takers.
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(USE THE GRAPH) Vectors B and C and are shown in the graph. Vector B is multiplied by the scalar 92. What angle does the new vector make with the x-axis?
Answer:
The angle the new vector makes with the x-axis is 33°
Explanation:
By multiplying a vector with a scalar, we multiply the similar components of the two quantities which is the magnitude of the scalar quantity and the magnitude of the vector with the new vector formed will have a magnitude equal to the product of the two magnitudes and the same direction of the original vector as follows;
The magnitude of the vector B = 5.6
The magnitude of the scalar = 92
The product of the two magnitudes = 5.6 × 92 = 515.2
The magnitude of the new vector = 515.2
The direction of the new vector = 33° South of West
Therefore, the angle the new vector makes with the x-axis = 33°.
how many meters does it take to make one mile
Answer:
1610 meters
Explanation:
Answer:
1609.344 Meters
Explanation:
There is no explanation
I need help finding the average acceleration fo tyler and bree
List the planets that have MORE THAN 3 moons.
Answer:
jupiter they have 79 moons,saturn has 62,uranus has 27,neptune has 14,pluto has 5,
Explanation:
A car is traveling at 100 km/h. How many minutes will it take to cover a distance of 750 km?
Answer:
7.5 minutes (you mean hours)
t = 7.5 min (if it was actually not hours than put minutes just letting u know.)
Explanation:
The first thing you have to do is know the equation; it is t = d/s, which is time = distance divided by speed. Know fill in the equation, now it will be t = 750 km/100 km/ hr ( in this min). If you divide it, then the answer will be t = 7.5 min (which it has to be hours instead of min because hours makes more sense than minutes.)
The car will take 7.5 hours to cover a distance of 750km.
What are Speed and velocity?Speed is defined as the rate over time at which an object is moving along a path, while velocity is defined as the rate and direction of motion of an object. Speed is a scalar quantity as it has only magnitude, no direction but Velocity is a vector quantity as it has both magnitude as well as direction.
Speed can be expressed as:
Speed= Distance travelled/ Time taken
Velocity can be expressed as:
Velocity= Displacement travelled/ Time taken
Both the quantities are expressed as meter per second (m/s).
If the two values are given , we can calculate the another value like in the above given information, speed of the car = 100km/hr and distance travelled by the car= 750 km.
So, Time taken= 750/100 = 7.5 hours
Thus, the car will take 7.5 hours to cover a distance of 750km.
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Fill in the blank. Bones fitted together in the shape of a give the human body structure.
Answer:
skeletal system
Explanation:
hope its the right answer:))
Answer:
top
Explanation:
can someone give me the answers to this question
Answer:
Rubbing his hand and ironing is Mechanical Energy being transformed into Thermal Energy.
Throwing a rock vertically in using Kinetic Energy, it then transforms into Gravitational Energy as the rock falls.
Explanation:
First, as Kwane rubbing his and and iron his clothes using the energy to create heat, that is thermal being transformed.
The rock being thrown uses kinetic energy and due to graviational force of the earth, it is being transformed into Potential Gravitational Energy.
is -9/6 irrational, rational, and integer, a whole, number or natural?
Answer:
-9/6 is only rational.
Explanation:
-9/6 = -1.5
not an integer bc decimal
not irrational because it can be represented as a fraction
not a whole or natural number because its negative.
A city bus travels six blocks east and eight blocks north east wok is 100 m long is a bus travels as distance and 15 minutes what is the average speed on the bus
Answer:
the average speed on the bus = 1.55 m/s
Explanation:
From the information we are being provided with ;
a city block travels 6 blocks due east
and 8 blocks due north
the length of the individual blocks = 100m
As such their respective distance will be
distance (d) traveled due east direction by bus = 6 × 100 = 600 m
distance (d) traveled towards the north direction by bus = 8 × 100 = 800 m
The total distance covered = (600+ 800)m
= 1400 m
However, it requires 15 minutes to travel this distance by bus.
Thus,
the average speed = distance/ time
the average speed on the bus = 1400 m / (15 × 60) s
the average speed on the bus = 1400 m / 900 s
the average speed on the bus = 1.55 m/s
how does bilateral symmerty extend to our senses?
Answer:
hope this helped you
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A car is traveling at 40 m/s. If it travels for 30 s how far will it travel.
Answer:
okay I might be wrong but it was an answer i had in like fifth grade MAYBE 1,200 meters
Explanation: