Answer:
True
Explanation:
Friction between solids can be most accurately defined as the force that
opposes the sliding motion of two surfaces that are touching each other.
PLS HELP NOW!! I WILL GIVE LOTS OF COINS! In general, explain the amount of force that is applied to both objects during ANY
collision, no matter how big or small, the weight/mass, or velocity of the objects.
In a collision between two objects, both objects experience forces that are equal in magnitude and opposite in direction. Such forces often cause one object to speed up (gain momentum) and the other object to slow down (lose momentum). According to Newton's third law, the forces on the two objects are equal in magnitude.
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Match the numbers to the answer below
Does light have a shadow?
Answer:
light itself doesn't have a shadow
Explanation:
light emits light to where things around the light may create the shadows
Answer:
No
Explanation:
Actually it the complete opposite. A shadow is an absence (or decrease of) of light because an object blocking its path.
Look at this image of a star cluster.
Which type of star cluster is shown?
A .open
b .binary
c .globular
b .eclipsing
Answer:
The answer is open
Explanation:
its is open because it's a open star cluster
The type of star cluster is open. The correct option is A.
What is star cluster?Star cluster is a large group of stars which are held together by the mutual gravitational attraction. There are two types of star cluster: Open and globular.
The open star clusters have stars arranged in random manner. The globular star cluster have the stars arranged in spherical way.
Thus, the correct option is A.
Learn more about star cluster.
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Help me please, ;) I could use it
Answer:
The solution(s) are in order with respect to the attachments
\(2.613\:\cdot10^5\) Joules ; 5. Adding the same amount of heat to two different objects will produce the same increase in temperature ; 2. Same speed in both ; 2. A
Explanation:
Diagram 1 ( Liquid Nitrogen ) : So as you can see, we want our units in Joules here, and can therefore multiply the mass of gaseous nitrogen and the latent heat of liquid nitrogen, to cancel the units kg, and receive our solution - in terms of Joules. Let's do it.
q ( energy removed ) = mass of nitrogen \(*\) latent heat of liquid nitrogen,
q = 1.3 kg \(*\) 2.01 \(*\) 10⁵ J / kg = \(1.3\:\cdot \:2.01\:\cdot \:\:10^5\) = \(10^5\cdot \:2.613\) = \(100000\cdot \:2.613\) = \(261300\) Joules = \(261.3\) kiloJoules = 2.613 \(*\) 10⁵Joules is the energy that must be removed
Diagram 2 : The same amount of heat does not necessarily mean the same increase in temperature for two different objects. The increase in temperature depends on the specific heat capacity of the substance. Therefore your solution is 5 ) Adding the same amount of heat to two different objects will produce the same increase in temperature.
Diagram 3 : The temperatures in both glasses are the same, and hence the molecules have the same average speed. Therefore your solution is 2 ) Same speed in both.
Diagram 4 : Glass A has more water molecules, and hence has more thermal energy. Your solution is 2 ) A.
Find the voltage if the current is .2 A and the resistance is 2 .
Answer:
The voltage is 0.4 v
Explanation:
Given :
I = 0.2 A
R = 2 ohm
so,
=> V = IR
=> V = 0.2×2
=> V = 0.4v
In what way is the structure of the Milky Way galaxy similar to the structure of the solar system?
Answer:
They are both similar because the MIlky Way has stars just like the solar system. It also has planets. The milky way is also a part of the solar system.
Explanation:
Electric field lines point from positive charges to negative charges. A. True B. False
Answer: A
Explanation:
Answer: True
Explanation: I just took the quiz.
Your turn it in score is 98%. I am not allowed to grade any assignments that have a score that high. Please redo the assignment, and re-submit. Thanks.
Mr. Z what does this mean somebody help?
Answer: He can't grade it your to smart .
Explanation:
Help me pls!! its on the photo
Answer these questions please
Answer:
1. DEclanation, you can see that location makes a great deal of difference in where the compass points. The angular difference between true north and magnetic north is known as the declination.
2. The Earth's magnetic North Pole is not the same as "true north," or the Earth's geographic North Pole .
3. a change or difference in condition, amount, or level, typically with certain limits.
4. a. It helps them find their way north.
b. They would get lost.
5. a.An orienteering map is a map specially prepared for use in orienteering events. These maps are much more detailed than general-purpose topographic maps, and incorporate a standard symbology that is designed to be useful to anyone, regardless of native language.
b.
The reason for this choice is that orienteers use a magnetic compass to navigate with, so it makes sense for both map and compass to be utilising the same system.
Explanation:
how to solve questions after 20 in the "energy work power" Kaho ot? i cant attach link sorry
Answer:
Explanation:
TYPE OUT THE LINK NEXT TIME AND THEN PEOPLE CAN HELP BY SEARCHING IT UP THEMSELVES, GOOD LUCK NEXT TIME
What can be correctly concluded from this experiment?
A sealed bottle containing bacterial cells and nutrients needed for cell growth is exposed to intense heat. It is then cooled. The bottle is not opened. Once the bottle has cooled, scientists note that even after several weeks, no bacteria growth occurs in the bottle.
1. New cells can only form from existing, living cells.
2. New cells can only form from nutrients if energy is provided.
3. New cells can only form in the presence of nutrients.
4. New cells can form from nonliving materials.
please help me with these two questions... thanks
Please can someone help me need help with these 5 questions!! and QUICK!
I need it done REALLLLLYYYYY soon!! (more like now but-)
(20 points for the answer to all of them)
Answer:
10. dependent as a change has occurred which has affected something else which is measurable.
11. dependent as a change is made to the environment this is why some species cannot live there as they have adapted to the climate.
12. Dependent due to change occurring it has resulted in the population decreasing which is measurable.
13. Dependent as the animal's and plants' survival is reliant on the environment.
14. Dependant as the plants require sunlight for photosynthies
Answer:
All are dependent
Explanation:
Organic compounds are compounds containing
A. carbon and nitrogen
B. hydrogen and nitrogen
C. carbon and helium
D. carbon and hydrogen
Which effect is created when two sound waves that are close in pitch
interact?
O A. Echoes
O B. Loudness
C. Beats
O D. Intensity
Answer:
C. Beats
Explanation:
When waves are interfering with each other, the sound is louder in some places and softer in others. As a result, we hear pulses or beats in the sound.
Answer:
beats
Explanation:
got it right
Do nutrients cause seagrass to grow more in this area? If so, are both nitrogen and phosphorus equally important? Explain your answer.
Seagrasses are a vital part of the marine ecosystem..
Seagrasses are submerged flowering plants found in shallow marine waters, such as bays and lagoons and along the continental shelf in the Gulf of Mexico. A vital part of the marine ecosystem due to their productivity level, seagrasses provide food, habitat, and nursery areas for numerous vertebrate and invertebrate species. The vast biodiversity and sensitivity to changes in water quality inherent in seagrass communities makes seagrasses an important species to help determine the overall health of coastal ecosystems. Seagrasses perform numerous functions:
Stabilizing the sea bottom
Providing food and habitat for other marine organisms
Maintaining water quality
Supporting local economies
Can somebody help me PLEASE I will mark Brainly and 10+ points
Answer:
3)solid, liquid, gas
4)false
5)Our weight on moon is less than it would be on Earth due to a difference of the strength of gravity on the moon. The moon's gravitation force is determined by the mass and the size of the moon. ... This means that if you went to the moon you would weigh less, even though your mass stays the same
6)Physical changes are changes that do not alter the identity of a substance. Chemical changes are changes that occur when one substance is turned into another substance. Chemical changes are frequently harder to reverse than physical changes.
7)Try to be as accurate as possible with your measurements, and then subtract the former from the latter to find the mass of the object. This process is commonly referred to as "taring."
8) i think ductility but im not sure
9)If only the form of a substance changes, you have observed a physical change. A common physical change occurs when matter changes from one phase to another. When an ice cube melts for example, it becomes liquid water.
10)Oil floats on the surface because water is heavier than oil. Scientists say that water is more dense than oil. This is why the oil always stays in the top container.
Explanation:
Please actually mark me brainliest
-yasmine
a helium balloon containing 12m³ of gas at a pressure of 120kPa is released into the air. Assuming that the temperature is constant, calculate the volume of the balloon would have when the pressure inside the balloon has fallen to 40kPa, answer in m³
Answer:
.
Explanation:
How does the agricultural activity most likely affect the surface water of the area?
Answer:
Agriculture has been the cause of significant modification of landscapes throughout the world. Tillage of land changes the infiltration and runoff characteristics of the land surface, which affects recharge to ground water, delivery of water and sediment to surface-water bodies, and evapotranspiration.
Explanation:
A car moving has a speed of 35 m/s. What acceleration would it have if it took 5.0 s to come to a complete stop?
Answer:
7
Explanation:
What do you think would happen to the boiling point of water if you were to cook pasta near the Dead Sea in Israel, which is 1,296 feet below sea level? Would it take a longer or shorter time than cooking the spaghetti in London, England, which is at sea level? Does the pot of boiling water in Israel contain more or less heat than the pot in London?
Answer:
I think it will be the same.
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When you use electricity in your home,
which resources are powering it?
Research the energy resources used
to power your state’s electrical grid
(that’s what supplies your home with
electricity). In the space below or on
a separate sheet of paper, create an
informative handout to provide to the
people of your state.
Include the following information in your handout:
• Which state do you live in?
• What is the population of your state?
• What percent of the electricity in your state comes from
nonrenewable resources?
• What percent of the electricity in your state comes from
renewable resources?
• What percent of the electricity in your state comes from
nuclear energy?
• Which renewable resource is used the most in your state?
• What is an interesting fact about energy usage in your
state?
I live in United Arab Emarates/Dubai
Powering Your Home: Understanding Energy Resources in Dubai, United Arab Emirates
Dubai, one of the seven emirates of the United Arab Emirates, is a rapidly growing city with a population of over 3.3 million people. With the increase in population and development, the demand for electricity has also risen significantly. Have you ever wondered where the electricity that powers your home comes from? In this handout, we will provide you with information about the energy resources used to power the electrical grid in Dubai.
Nonrenewable Resources:
Dubai relies heavily on nonrenewable resources such as natural gas and oil to generate electricity. As per Dubai Electricity and Water Authority (DEWA), in 2020, 94% of the electricity generated in Dubai came from natural gas and 6% from coal.
Renewable Resources:
Dubai has been working to diversify its energy mix by investing in renewable resources. According to DEWA, 6% of Dubai's electricity in 2020 was generated from renewable sources, such as solar and waste-to-energy. DEWA has set a target to increase the share of renewable energy in Dubai's energy mix to 75% by 2050.
Nuclear Energy:
Dubai is also investing in nuclear energy to diversify its energy mix. The first nuclear power plant in the UAE, the Barakah Nuclear Energy Plant, started operations in 2020. It is expected to generate 5.6 GW of electricity and will contribute to reducing carbon emissions.
Most Used Renewable Resource:
Dubai has the world's largest single-site solar energy project, the Mohammed bin Rashid Al Maktoum Solar Park. It is a key component of Dubai's clean energy strategy, and its capacity is expected to reach 5 GW by 2030. The solar park uses photovoltaic solar panels to convert sunlight into electricity.
Interesting Fact:
Dubai is home to the world's tallest building, the Burj Khalifa, which has been designed to be energy-efficient. It uses a combination of technologies such as a high-performance glass facade, an efficient air-conditioning system, and a double-decker elevator system that reduces energy consumption by 20%.
Conclusion:
Dubai's energy mix is currently dominated by nonrenewable resources, with natural gas being the primary source of electricity generation. However, the city is making significant strides to increase the share of renewable energy and diversify its energy mix. By investing in nuclear energy and the Mohammed bin Rashid Al Maktoum Solar Park, Dubai is working towards achieving its goal of becoming a sustainable city and reducing its carbon footprint.
Answer: Windmills and solar panels
Explanation: It is used by solar energy from energy and friction with the atmosphere and CO2
Explain the difference between trace fossils and body fossils. Provide examples of each type.
Answer:
trace fossils are evidence of biological activity, such as worm trails, footprints, or animal tracks
body fossils are the remains of an organism such as teeth, bones, and shells
Explanation:
What is a period on the periodic table?
a row
a column
Answer:
A row is a period on the periodic table.
Answer:
A row
Explanation:
If you put food coloring in room temperature water, the coloring spreads throughout the water.
The water causes the color to spread mainly because:
•the food coloring is heavy
•food coloring molecules are small
•the water is warm
•the water molecules are in motion
Answer: Water molecules are in motion
Which of the following forces has not changed Earth's surface?
folding
erosion
weathering
gravity
Answer:Gravity is the force among the options listed that has not directly changed Earth's surface.
Explanation:
Gravity is a fundamental force that acts on all objects with mass, including the Earth itself, but it does not cause changes or modifications to the Earth's surface features. Instead, gravity influences the movement of materials and the shape of the Earth's surface by exerting a pulling force on objects. On the other hand, folding, erosion, and weathering are all processes that directly contribute to shaping
PLEASE HELP! I think it's F but I'm not sure... Am I right???
The structural layers of the sun are shown in the cross-sectional diagram.
Which layer represents the chromosphere?
Select one:
a. C
b. D
c. E
d. F
c.E ps... that's the answerrr
Explanation:
that's the answer E
Choose a household appliance or any other appliance that works on the basis of electric current and explain how it works. Mention the effects of the electric current that you encounter in its operation.
Answer:
One household appliance that works on the basis of electric current is a washing machine. It works by first drawing in water from the water supply, and then pumping it into the drum where the clothes are added. The washing machine then agitates the clothes with a rotating inner drum, which is powered by an electric motor. The motor is powered by electric current, which is supplied by the electrical outlet. As the drum rotates, the electric current causes the motor to turn, which in turn agitates the clothes. The effects of the electric current are seen in the form of heat generated by the motor, and a buzzing noise during operation.