Answer:
Explanation:
The real image is always inverted and can be obtained on a screen in this mode.
On the cinema screen, it now appears normal to our eyes.
Condensed light from the condenser goes through the film forming rays which are then passed through a series of lenses which spread them out and focus them on the screen.
The real image is what now shows on the screen.
For spherical mirrors, how many reference rays are used to find the image point? A two B three C four D six
describe a situation that demonstrates that water waved carry energy
The energy possessed by the water waves in ocean will be due to the gravitation of the moon and the sun.
What is wave energy?Wave energy is a form of renewable energy that can be harnessed from the motion of the waves. There are several methods of harnessing wave energy that involve placing electricity generators on the surface of the ocean.
Due to the gravitation of moon tides, winds, and weather, waves can vary in size and strength. As waves roll through the ocean, they create kinetic energy, or movement.
This movement can be used to power turbines, which, in turn, create energy that can be converted into electricity and power. There are also several ways of harnessing wave energy that utilize the up and down motion of the waves to power pistons/turn generators.
Hence the energy possessed by the water waves in ocean will be due to the gravitation of the moon and the sun.
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Sound waves travel at about 259 meters per second through gaseous carbon dioxide. They travel at about 1,162 meters per second through liquid ethanol. And they travel at 1,960 meters per second though solid lead. Which of the following statements about electromagnetic waves is true? A. Electromagnetic waves travel faster than sound waves through all media. B. Electromagnetic waves travel faster than sound waves through gases but not through liquids. C. Electromagnetic waves travel faster than sound waves through liquids but not through solids. D. Sound waves travel faster than electromagnetic waves through all media.
If the the United States imports $100 million of goods and exports $150 million, what does the United States have?
in which layer of the atmosphere do communication satellites orbit Earth?
Answer:
In the exosphere
Explanation:
How many wolves are in the Southeast US
when something is Plumb it is
Two slightly out of tune instruments will creat beats when the same note is played
Answer: The right answer is C interference.
Explanation: Two slightly out of tune instruments will create beats when the same note is played. This is a pattern of louder and softer sounds. A piano tuner uses this method to tune a piano. When two waves overlap, they each act as if the other is not there. This interaction is known as A) diffraction. B) dispersion. C) interference. D) refraction.
Which statement is true about the formation of bonds?
A. There is an overall release of energy when bonds form.
B. There is an overall energy increase when bonds form.
C. A bond is formed as atoms are split apart from each other.
D. Bonds are always first-order.
Answer:
A. There is an overall release of energy when bonds form.
Explanation:
There is a general release of energy when bonds form. This energy is called bond energy.
Bond energy is involved in the breakdown or formation of one or more bonds between atoms of a molecule. Atoms bond with each other to achieve their electronic stability, that is, they move from a higher energy situation to a lower energy one. With this we can state that when the bond between atoms is formed, energy is released; therefore, its breakdown depends on energy absorption.
beth walked to the school in 80 seconds from a position 100 m west of the school. what was her velocity?
Energy that does not involve the large-scale motion or position of objects in a system is called:
A- Kinetic Energy
B- Potential Energy
C- Nonmechanical Energy
D- Conserved Energy
Explain one way the water cycle affects weather. Use complete sentences.
The water cycle affects weather by regulating rains and water vapor in atmosphere.
What is water cycle?A biogeochemical cycle known as the "water cycle" depicts the constant movement of water on, above, and below the Earth's surface.
The amount of water on Earth stays relatively constant over time, but how it is divided up into the major reservoirs of ice, fresh water, saline water (salt water), and atmospheric water varies based on a variety of climatic factors.
Evaporation, transpiration, condensation, precipitation, infiltration, surface runoff, and subsurface flow are the physical processes by which water travels from one reservoir to another, such as from a river to the ocean or from the ocean to the atmosphere. As a result, the water transforms into liquid, solid (ice), and vapor.
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Explain the scientific theory of plate tectonics by describing how the movement of earths crystal plates cause both slow and rapid changes in earths surface, including volcanic eruptions, earthquakes, and mountain building
Plate tectonics theory describes the motion of the Earth's lithosphere, which leads to geological phenomena such as earthquakes, volcanic eruptions, and mountain building.
Explanation:Understanding Plate Tectonics
Plate tectonics is the scientific theory that explains the movement of the Earth's lithosphere, which is divided into tectonic plates. The mantle's slow motion drives the movement of these plates, leading to various geological phenomena. Tectonic plates move in different directions causing continents to gradually drift, leading to the formation of mountains, as well as causing earthquakes, and volcanic eruptions. This process is a fundamental aspect of geology and the formation of the Earth's topography. Moreover, plate tectonics acts as a heat distribution mechanism, cooling the planet by transferring heat from the interior to the surface.
Phenomena Caused by Plate Movement
Volcanic eruptions: Happen when molten rock from beneath the Earth's crust escapes through weaknesses in the crust, often at plate boundaries.
Mountain building: Occurs when tectonic plates collide and the land is pushed upwards.
All of these geological events showcase the dynamic nature of our planet, shaped significantly by the underlying movements of its tectonic plates.
The relative density of oak wood is 0.64 .find the density in the cgs system
which would ultimately cause the armature in an electric motor to spin?
In an electric motor, the armature spins due to the interaction between the magnetic field produced by the stator (the stationary part of the motor) and the magnetic field produced by the armature itself.
Here's a simplified explanation of the process:
Supplying Power: When electric current flows through the motor's coils (which are part of the armature), it creates a magnetic field around the coils. This process usually involves a commutator and brushes to direct the current flow in the coils effectively.
Magnetic Fields: The stator also has its own set of coils that are arranged in such a way that when current passes through them, they create a magnetic field. This magnetic field interacts with the magnetic field produced by the armature.
Electromagnetic Force: Due to the interaction of these magnetic fields, an electromagnetic force is generated. This force causes the armature (which contains the coils) to rotate. The direction of rotation depends on the direction of the current and the orientation of the magnetic fields.
Continuous Rotation: As long as the electric current is supplied to the motor, this process continues, resulting in continuous rotation of the armature.
In summary, it's the interaction of magnetic fields generated by the armature and the stator, along with the flow of electric current, that causes the armature to spin in an electric motor.
The wild type of a species represents the characteristics that prevail among individuals in natural conditions. For dogs, the wild type has a short body, upward-pointing ears, and a curly tail. Even though dachshunds are descended from the wild-type dog, they have long bodies, downward-pointing ears, and a straight tail. Which of these best explains how the shape of the dachshund came into being?
Humans bred various dogs over many generations to select for the dachshund's shape.
Humans created a gene for the dachshund shape, which they inserted into the DNA of a wild-type dog.
Natural selection led to the shape of the dachshund over many generations.
The unique shape of the dachshund spontaneously appeared during a single generation.
the majority of the fossils found in Indiana have been marine fossils. These include things like mollusks, coral, and clam relatives.
The existence of so many marine fossils here indicates that
A) we don't know as much as we think.
B) Indiana was once covered by the ocean.
C) a giant flood must have brought them here.
D) marine animals create fossils much more readily.
The answer is b because Indiana is close by shore and is possible that is might have been under the ocean.
Compared to oceanic crust , continental crust is generally
Continental crust is typically thicker, more complex in its composition and predominantly made of granite compared to oceanic crust which is thinner, simpler and mainly composed of basalt. The continental crust covers 45% of earth's surface, whereas oceanic crust covers 55%. The continental crust, being thicker and more buoyant, is generally not subducted in plate tectonics unlike the oceanic crust.
Explanation:Compared to the oceanic crust, the continental crust is typically thicker and composed predominantly of different types of rocks. While oceanic crust is about 6 kilometers thick and made primarily of basalt, continental crust varies between 20 to 70 kilometers in thickness and is primarily composed of a volcanic class of silicates called granite.
Notably, the crust is the easiest layer for geologists to study and makes up only about 0.3% of the total mass of Earth. The continental crust covers about 45% of the surface, some of which lies beneath the oceans. The typical density of the crust, both oceanic and continental, is around 3 g/cm³.
The continental crust tends to be older and more complex than the oceanic crust. It consists of many different types of rocks formed over billions of years from many different types of processes. Due to the increased thickness and complexity of its composition, the continental crust is more buoyant than the oceanic crust and hence is not subducted during the process of plate tectonics. Oceanic crust, being thinner and denser often gets subducted beneath the continental crust at convergent boundaries.
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What gas is the líquid water turning intro?
Elaborate on the suitability of "cola" type drinks to polish chrome surfaces.
The ash produced when solid waste is incinerated is ______ than the original waste.
A. Less toxic
B. More toxic
C.as toxic
D. More recyclable
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How to find acceleration with mass coefficient of friction and applied force
Final answer:
To find acceleration with mass, coefficient of friction, and applied force, we can use Newton's second law and the formula for frictional force. The applied force can be calculated by subtracting the force of friction from the net force.
Explanation:
To find acceleration with mass, coefficient of friction, and applied force, we can start with Newton's second law. Newton's second law states that the net force on an object is equal to the mass of the object multiplied by its acceleration: F_net = m * a. In the case of friction, we can use the formula for frictional force: F_friction = µ * N, where µ is the coefficient of friction and N is the normal force.
The normal force can be calculated as the product of mass and acceleration due to gravity: N = m * g. The applied force can be calculated by subtracting the force of friction from the net force: F_net - F_friction = F_applied.
what two temperature scales are commonly used in the United States
A box that has a mass of 80 kg slides down a ramp with a 30 degree angle. The free-body diagram shows the forces acting on the box.Ignoring friction and air resistance, what is the acceleration of the box, to the nearest tenth?
Answer:
4.9
Explanation:
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What is the wavelength of this wave
10 cm
you can see the distance from peak to peak or the distance between the starting point to the end of the first whole wave
Answer:
It's actually cannot be determinedExplanation:
I just had this question and got it right
Which statements accurately describe the waste generated by nuclear reactions? Check all that apply. It is hazardous for hundreds to thousands of years. Some waste can be recycled and used again. It is hazardous to living organisms forever. Some waste can be completely transformed into energy. It is not hazardous after a couple of years.
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What is shown in the diagram?
A). A Generator
B). A Motor
C). A Turbine
D). An Electromagnet
D). An Electromagnet
a car traveling at 24 m/s starts to decelerate steadily. It comes to a complete stop in 6 seconds what is its acceleration?
as the soviet russian soldiers approached the camp what were the prisoners forced to do
Explain the connections between reactants, products, and limiting reactant.