Answer:
D The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas.
Explanation:
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The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas. The correct option is D.
What is kinetic energy?The energy an object has as a result of motion is known as kinetic energy. A force must be applied to an object in order to accelerate it.
We must put in effort in order to apply a force. After the work is finished, energy is transferred to the item, which then moves at a new, constant speed.
Energy is absorbed by the water, increasing the kinetic and potential energy of the water molecules and converting them from a liquid to a gas.
Water molecules usually have the highest kinetic energy in the steam phase.
Thus, the correct option is D.
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Calculate the acceleration of a car that begins at rest at a stop light and accelerates to a speed of 20m/s in a 10 sec time period. Be sure to include the acceleration formula and the final units.
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Which statement accurately describes what happens when water turns to steam in terms of energy?
A.
The water absorbs energy which causes chemical bonds to break, changing water to steam.
B.The water releases energy which causes the water molecules to have less kinetic and potential energy, changing their configuration from liquid to gas.
C.The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas.
D.The water releases energy which causes chemical bonds to break, changing water to steam.
Final answer:
Water turns to steam by absorbing energy that increases the kinetic and potential energy of water molecules, allowing them to escape into the air as gas. So the correct option is C.
Explanation:
When water turns to steam, it absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas. During the process of boiling, heat energy increases the water molecules' kinetic energy, leading to the breaking of hydrogen bonds that held water molecules close together. When these bonds break, water molecules can move freely and escape into the air as steam or water vapor. This endothermic transition requires a significant amount of energy due to water's high heat of vaporization.
The correct statement describing this change of state is thus:
C.The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas.
What is the mass of an object that weighs 55N on earth?
With Earth's gravity being [tex]9.80 m/s^2[/tex] the mass is approximately 5.61 kg.
To calculate the mass of an object that weighs 55N on Earth, we need to use the formula for weight, which is w = mg, where w is weight, m is mass, and g is the acceleration due to gravity.
On Earth, g is typically [tex]9.80 m/s^2[/tex]
Therefore, we can find the mass of an object by dividing its weight by this acceleration due to gravity.
To calculate the mass (m) of an object that weighs 55N on Earth:
m = w / g
[tex]m = 55 N / 9.80 m/s^2[/tex]
This calculation results in a mass of approximately 5.61 kg.
The Sierra Nevadas are an example of a fault-block mountain range. Based on this information, which of the following processes formed the Sierra Nevadas?
Answer:
Explanation:
The uplift caused a wide range of elevations and climates in the Sierra Nevada, which are reflected by the presence of five life zones (areas with similar plant and animal communities).
Suppose Eratosthenes’ results for Earth’s circumference were quite accurate. If the diameter of Earth is 12,740 km, what is the length of his stadium in kilometers?
Answer:
Length of one stadium = 0.1556 km
Explanation:
We have the diameter of Earth = 12740 km
Thus, circumference (C) of Earth is
[tex]=2\pi \frac{Diameter}{2} \\[/tex]
[tex]=2\times \pi \times \frac{12740}{2}[/tex]
C = 40023.89 km
Eratosthenes was a Greek polymath. He was the first to calculate the circumference of Earth. He had observed that at local noon on day of Summer Solstice, when Sun is overhead for the locations on Tropic of Cancer, a place named Syene had zero shadow day. Also on the same day the objects in Alexandria casts shadow. This proved that Earth is spherical and not flat. He went further and calculated the Sun angle ([tex]\theta[/tex]) for Alexandria by using a Rod (Gnomon). He found the angle to be about 7°. He also knew the distance (D) between Alexandria and Syene which was 5000 Stadia.
Lets say length of one stadia = S km
He used this data and simple concept of geometry as given below:
[tex]\frac{\theta }{360}=\frac{D}{C}[/tex]
[tex]=\frac{7}{360}=\frac{5000 \times S}{40023.89}[/tex]
[tex]=5000 \times S = \frac{7\times 40023.89}{360}[/tex]
[tex]=S = \frac{7\times 40023.89}{360\times5000}[/tex]
S = 0.1556 km
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1. What is the force on an object due to its mass and gravity called?
A)Kilograms
B)Velocity
C)Weight
D)Pounds
2. Which of the following best describes gravitational force?
A)An attraction between two objects that have mass
B)An attraction between two objects due to their electrons
C)The force that keeps atoms and molecules bound together
D)The force that keeps objects from moving when they are at rest
3. How does distance between two objects affect their gravitational force?
A) Force increases as distance increases.
B)Force decreases as distance increases.
C)Force decreases as distance decreases.
D)Force is not related to distance.
4. Imagine you are an astronaut and you travel to a planet with a much larger mass than Earth. How would this affect your weight? Explain your answer.
C)Weight
A)An attraction between two objects that have mass
B)Force decreases as distance increases.
grav force of massive planet increases your weight
Answer:
C)Weight
A)An attraction between two objects that have mass
B)Force decreases as distance increases.
Explanation:
What is the periodic table of elements?
Question 5 options:a chart that organizes all the elements by their atomic number a chart that organizes all the naturally-occuring elements a chart that organizes all the elements by their atomic mass a chart that organizes all the elements created by humansHow much force is needed to stop an 80-kg football player if he decelerates at 5 m/s2? 5 N 16 N 20 N 400 N
Answer:
The force needed is 400 Newtons.
Explanation:
The force can be determined by means of Newton's law.
[tex]F = m \cdot a[/tex] (1)
Where F is the force needed to stop the football player, m is the mass of the football player and a is the acceleration.
[tex]F = (80 kg)\cdot (5m/s^{2})[/tex]
[tex]F = 400 kg.m/s^{2}[/tex]
However, 1N = 1 kg.m/s^{2}
[tex]F = 400 N[/tex]
Hence, the force needed is 400 Newtons.
A car traveling at 24 m/s starts to decelerate steadily. It comes to a complete stop in 15 seconds.
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Which would be the best element to use in a semiconductor?
Question 5 options:
lithium (Li)
chlorine (Cl) )
silicon (Si)
carbon (C)
what i the difference between a wedge and an inclined plane
An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of _____ amu. (Enter a whole number.)
Magnet A and B are of equal magnetic strength and which position will magnets A&B have the greatest attraction for toward each other
From which sphere does most water evaporate?
A. Lithosphere
B. Hydrosphere
C. Biosphere
D. Atmosphere
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Which direction will the molecules pass through the cell membrane?
a. From bottom to top
b. From left to right
c. From right to left
d. From top to bottom
What best describes the degree to which a material can transmit heat
- melting point
- boiling point
- thermal conductivity
- electrical conductivity
The correct answer is C. Thermal conductivity
Explanation:
Conduction occurs as heat, electricity, etc. are transmitted from one body to another. In the case of thermal conductivity, this refers to the property of one material or body to transmit or conduct heat. This property is measured in Watts (energy) per meter(distance)-Kelvin (temperature). For example, the thermal conductivity of copper is around 385 while the one of ice is 1.6, which indicates copper has a higher capability to conduct heat. Thus, the degree to which a material can transmit heat is thermal conductivity.
Explain mass defect in terms of atomic mass number and atomic mass and explain how gamma radiation is produced.
a gamma ray is a high energy, high frequency electromagnetic wave that travels at the speed light 3.0 x 10^8 m/s calculate the wavelength of the wave if it's frequency is 10^20hz
process where sediment and other material is moved from one place to another is called blank?
A balloon drifts 50 m toward the east in 6 s; then the wind suddenly changes and the balloon flies 30 m toward the west in the next 5 s. What was the balloon's total displacement?
A student who runs every day is becoming bored with her physical fitness routine and considers quitting. What is the most effective thing she can do to maintain her active lifestyle?
Answer:
Explained
Explanation:
A student who runs every day is becoming bored with her physical fitness routine and considers quitting. Now in order maintain her fitness routine she needs to break the monotony by changing her exercise regime. She do other activities like play sports two days a week, she do aerobics, she even try some cardio vascular exercises which as good as running. She also try changing her route of running as the new view might inspire her.
When the moon is waning, what do we see?
A. none of the moon is visible
B. more and more of the moon
C. a full moon
D. less and less of the moon
Answer:
D. Less and less of the moon.
Explanation:
Waning has the meaning decreasing. A waning moon is the moon that decreases in size and its illumination . Moon starts waning a day after the full moon. Its size keeps decreasing and ultimately it is not visible on the new moon day .
A day after the new moon, it starts increasing in size and brightness and is slowly visible each night, until it is completely shining on the full moon day again. This is the waxing of the moon, where its size keeps increasing.
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C. What organelle is missing from E. coli?
Answer:
The organelle missing from E.coli is nuclear membrane.
Explanation:
A nuclear membrane is a double membrane that surrounds and protects the nucleus of a cell. The nuclear membrane is lacking because there is no need for one to protect a nucleus that does not exist. Bacteria cells are also prokaryotes, and all prokaryotes lack a nucleus.
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please do the Venn diagram
what is one joule work
demonstrate that plants use photosynthesis to grow throughout their lives
Why was the Constitution written, according to the Preamble? A. to create a more perfect Union B. to end slavery C. to break free from Britain D. to give women the vote
If the total number of earthquakes annually averages 14,500 approximately how many are magnitude 5 or higher? and show work.
give an example of fluid friction