consider the compound optical system shown in the diagram, where two thin lenses of focal lengths 7.5 cm (left lens) and 35 cm (right lens) are separated by a distance 27 cm. is the image created by the second lens real or virtual? is it upright or inverted?
Answers
Will the first lens's output be actual or virtual, inverted or upright, depending on how close or far an object is placed to it to the left of the first glass (the left lens)
Compound optical systems: what are they?To reach significantly higher multiplication of an object, a compound microscope employs a system of lenses, one set of which enlarges the image created by another. While some less expensive commercial digital microscopes have simple single lenses, compound microscopes make up the great majority of contemporary research microscopes.
what is The three components of a compound microscope are what?A compound microscope also includes two lens arrays, a body tube where the lenses can be kept at the proper distance from one another, a condenser lens that sits below the samples stage and concentrates light on the specimen, and an irradiance system that either measures the amount of light through or houses light-emitting diodes.
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Related Questions
Which type of graph would best show the data collected from measuring time for a ball to fall from varying heights?
bar graph
scatter plot
Frequency table
circle graph
This is due tonight, can someone pls help me ASAP, TYSM.
Answers
Calculate the total displacement of a mouse walking along a ruler, if it begins at the location x = 5 m, and then does the following:
- It walks to x = 12 m
- It then walks a displacement of -8 m (NOT the same as x = -8 m)
- Lastly, it walks to the location x = 7 m
Answers
Answer:
18
Explanation:
12 - 5 + 8 = 15
12 - 8 = 4
7 - 4 = 3
15 + 3 = 18
The modern standard of length is 1 m and the speed of light is approximately 2.99792 x 10^8 m/s. Find the time change in t for light to cover 1 m at the given speed.
Answers
Explanation:
Distance = rate × time
1 m = (2.99792×10⁸ m/s) t
t = 3.33565×10⁻⁹ s
Light is the fastest thing in the universe. The speed of light is 2.99792 x 10⁸ m/s . The time that light takes to cover a distance of 1 meter is just 3.39 x 10⁻⁹seconds.
What is speed?Speed is a physical quantity that means the distance in meter covered by a moving body in one second. The speed of light is 2.99792 x 10⁸ m/s. Light from sun only takes 8 min to travel to the earth surface.
The speed of a moving particle or wave is mathematically the ratio of distance and time. Thus time of travel can be found out from the distance and speed.
It is given that the distance travelled by light is 1 m and its speed is 2.99792 x 10⁸ m/s. Thus the time taken to travel is calculated as follows:
Time = distance/speed
= 1 m/ (2.99792 x 10⁸ m/s)
= 3.39 x 10⁻⁹s
Therefore, the time that light takes to cover a distance of 1 meter is just 3.39 x 10⁻⁹seconds.
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the star vega has an average surface temperature of 10,000 k and has a luminosity 70 times greater than that of the sun. which type of star is vega
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The absolute visual magnitudes of supergiants range from -3 to -8. Supergiant stars have a temperature range of from 3,450 K to 20,000 K. Supergiant stars can be 10 to 70 times more massive.
What is a magnitude example?
The magnitude of something refers to its magnitude. For instance, a car is travelling more quickly than a bike in terms of speed. The speed difference between the car and the bike in this case is greater. It reveals the absolute or relative size or direction that an object moves when in motion.
How do you define instrumental magnitude?
The visual size of a celestial body as measured by an instrument Magnitude (astronomy), a metric for determining brightness and brightness variations,
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If a person runs 68m in 8s, what is his speed?
Answers
Answer:
19.01396 mph.
Explanation:
Please help! 100 points!
What are some ways that the nitrogen cycle overlaps with or influences the oxygen and carbon cycles?
Are any of these interactions between the cycles positive?
Are any negative?
What about when the nitrogen cycle is thrown off balance by the Haber-Bosch process and others like it?
How can that influence the oxygen and carbon cycles?
Are there other cycles involved that have not been mentioned in this question?
What does this discussion suggest about the nature of the Earth as one large system?
Answers
Answer:
1.Nitrification happens when soil organisms change over ammonium into nitrate. Much of the cover between the carbon cycle and the nitrogen cycle happens within the soil, in forms conducted by soil organisms. Organisms break down supplements, construct modern compounds for their possess development, and inevitably pass on.
The second question im not sure sorry- the positive and negative one ;(
3. Many human activities have a significant impact on the nitrogen cycle. Burning fossil fuels, application of nitrogen-based fertilizers, and other activities can dramatically increase the amount of biologically available nitrogen in an ecosystem. As nitrogen makes up 78% of the atmosphere, there is no shortage of it – it just isn't in a form plants and animals can use.
4. Carbon makes its way through living things as carbon-based compounds, like vitality particles, fats and proteins, in the long run cycling its way back into the environment. Nitrogen is basically found within the air as well and enters the environments as supplements for plants. Water, nitrogen and carbon cycles. Carbon moves from the air and back by means of creatures and plants. Nitrogen moves from the environment and back by means of living beings. Water moves on, over, or underneath the surface of the Soil.
5. Carbon cycle, Nitrogen cycle, Nutrient cycle, Oxygen cycle, Phosphorus cycle, Sulfur cycle, Rock cycle, Water cycle.
6. Wind, water, and ice disintegrate and shape the arrive. Volcanic movement and seismic tremors change the scene in a sensational and frequently savage way. And on a much longer timescale, the development of earth's plates gradually reconfigures seas and landmasses. Each one of these forms plays a part within the Cold and Antarctica.
People affect the physical environment in numerous ways: overpopulation, contamination, burning fossil powers, and deforestation. Changes like these have activated climate alter, soil disintegration, destitute discuss quality, and undrinkable water. Earth's surface is the as it were territory accessible to the human race. Understanding the forms by which that environment has been made and persistently changed is critical to decide the causes of natural degradation.
hydrostatic pressure force always acts on the centroid of the area. true false
Answers
False. Hydrostatic pressure force does not always act on the centroid of the area.
The statement that hydrostatic pressure force always acts on the centroid of the area is false. Hydrostatic pressure is the pressure exerted by a fluid at rest due to the weight of the fluid above it. It depends on the depth and density of the fluid and is perpendicular to any surface it acts upon.
When considering a submerged surface, such as a submerged plate or wall, the hydrostatic pressure force is indeed applied normal to the surface. However, this force does not necessarily act at the centroid of the area. The distribution of hydrostatic pressure forces depends on the shape and orientation of the surface.
For irregularly shaped surfaces or surfaces with varying depths, the hydrostatic pressure force acts differently at different points. It follows the principle of Pascal's law, which states that the pressure at a point in a fluid is transmitted equally in all directions. As a result, the force distribution can vary across the surface.
In summary, the hydrostatic pressure force does not always act on the centroid of the area. Its distribution depends on the shape, orientation, and depth of the submerged surface, following the principles of Pascal's law.
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Analyze the chemical reaction below
16 g CH4 + 64 g O2 → 44 g CO2 + 36g H2O
Explain the law of conservation of mass and describe how the equation represents the law of conservation of mass.
Answers
Answer:
Explanation:
The law of conservation of mass states that the mass of the elements at the beginning of the reaction(reactants) will equal the mass at the end of the reaction (product) .
In the chemical equation above,the total mass of the reactants is 80g(16+64) and the total mass of the products is also 80g(44+36).therefore the mass remained constant and that's how the equation represents the law of conservation of mass
Ball #1 is rolled down the steeper left side of a hill; ball #2 rolls down the opposite side, which is longer and less steep. Both balls roll out onto a flat surface at the same level.Assuming no thermal losses, how do the speeds of the balls compare when they reach the flat surface?
Answers
Option C is the best choice since the ball will travel at the same speed just at bottom of the hill because the hill height is the same for both balls.
work results in KE modification.
Change in \(KE_mgh = 1/2 mv2\) equals gravitational work.
A ball's velocity needs to be utilized to generate energy potential as it is tossed into the air. The pitcher's potential power increases, while its speed decreases. An object obtains energy whenever a power is given to it and results in movement in the direction of the force. the measurement of how efficiently a machine uses energy to carry out tasks. Often, a vehicle's effectiveness is stated as a percentage.
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"Complete question"
Ball #1 is rolled down the steeper side of a hill while ball #2 rolls down the opposite side which is less steep. Both balls roll out onto a flat surface at the same level. Assuming there is no friction, how do the speeds of the balls compare when they reach the flat surface?
a. Ball #1 has the greater speed.
b. Ball #2 has the greater speed.
c. The speed will be the same for both balls.
d. Not enough information is given.
If the planet jupiter underwent gravitational collapse, its rate of rotation about its axis would.
Answers
If the planet Jupiter underwent gravitational collapse, its rate of rotation about its axis would increase .
Gravitational collapse is the contraction of an astronomical object due to the influence of its own gravity, which tends to draw matter inward toward the center of gravity.
If the planet Jupiter underwent gravitational collapse, its rate of rotation about its axis would increase as the speed will increase .
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helpppppppp
Science
ASAP
Answers
2(Anther) - B(holds pollen)
3(Pollen)- A(Male Gametes)
4(Stigma)- C(Receives the pollen)
Could society survive without energy transformations? Explain your reasoning.
Answers
help me with how to work it
Answers
Answer:
c
Explanation:
The left side of the armature in an electric motor is pushed down. when the current changes direction, how is the motion of the armature affected? it is pulled up on the left side. it is pulled up on the right side. it is pulled toward the commutator. it is pushed away from the commutator.
Answers
Answer:
It is pulled up on the left side. took the test
Explanation:
a boy pulls his toy on a smooth horizontal surface with a rope inclined at 60° to the horizontal if the effective Force pulling the toy along the horizontal surface is 5-newton calculate the tension in the rope
Answers
Answer:
The tension in the rope is 10 N
Explanation:
The Force Vector
Like all vectors, the force has a magnitude and direction. Vectors can be decomposed into two perpendicular components on both axes.
The tension in the rope (F) can be calculated by using vector decomposition as follows.
The figure included below shows a force F which horizontal component is known to have a value of Fx= 5 Nw. The angle formed by the force and its horizontal component is 60°.
We can use the trigonometric ratio called the cosine to find the magnitude of F as follows:
\(\displaystyle \cos 60^\circ = \frac{5}{F}\)
Solving for F:
\(\displaystyle F = \frac{5}{\cos 60^\circ}\)
\(\displaystyle F = \frac{5}{\frac{1}{2}}\)
Thus, F = 10 N
The tension in the rope is 10 N
a laser beam passing from medium 1 to medium 2 is refracted as shown. which is true?
Answers
The laser beam when passes from medium 1 to medium 2 shows the relation n1 > n2 that is option B is correct.
The laser beam in the attached figure when passing from medium 1 to medium 2 bends away from the normal. This means that the speed of the light beam is increased when it passes from medium 1 to medium 2. This means that the light beam is travelling from a slightly denser medium to slightly rarer medium as it is the property of light beam when it travels from denser to rarer medium it bends away from the normal. The refractive index of denser medium is more than that of the refractive index of rarer medium. So, we can conclude that n1 > n2.
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Complete Question:
A laser beam passing from medium 1 to medium 2 is refracted as shown. which is true?
a) n1 < n2
b) n1 > n2
c) there is not enough information to compare n1 and n2
Anxiety disorders can become a pathological disorder when feelings of apprehension and fear __________.
a. are recurrent for less than six months
b. are inherited due to genetics
c. become excessive, uncontrollable, and affect daily life
d. are controllable but excessive
please select the best answer from the choices provided a b c d
Answers
When feelings of anxiety and worry become excessive, out of control, and interfere with daily life, they can develop into pathological diseases called anxiety disorders. So the correct option is (c).
Anxiety disorders are characterized by feelings of apprehension and fear, which are normal human emotions. However, when these feelings become excessive, uncontrollable, and affect daily life, they can be considered a pathological disorder. Anxiety disorders can affect a person's ability to perform daily activities, such as work or school, and can also cause physical symptoms such as insomnia, muscle tension, and fatigue. These disorders can be recurrent, but they need to be excessive, uncontrollable, and affect daily life in order to be considered pathological.
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help needed fast, I'm not good at physics, look at picture below ( I posted another page aswell, take a look on my profile) part #2
Answers
Answer:
I’d say the air outside the hemisphere is more free than from the inside of the hemisphere.
Explanation:
hope this help!
Q.7. For a system with a transfer function of G(s)=- co² s² +2a+w² if the natural frequency is 0.5 and the damping ratio is 1.3, which of the following statements is correct regarding the unit step response of the system?
O A) Damped
O B) Undamped
O C) Underdamped
O D) Crittically Damped
O E) Overdamped
Answers
The system described by the transfer function G(s) = -co² s² + 2a + w², with a damping ratio of 1.3 and a natural frequency of 0.5, has an overdamped unit step response. So, the correct option is (E)
The transfer function of the system is given as G(s) = -co² s² + 2a + w², where co represents the damping ratio, a represents an arbitrary constant, and w represents the natural frequency of the system. We are given that the natural frequency is 0.5 and the damping ratio is 1.3.
To determine the type of unit step response, we need to analyze the damping ratio (co) in relation to the critical damping value (co_critical).
The critical damping ratio (co_critical) is defined as the value where the system is on the threshold between being overdamped and underdamped. It is given by the formula co_critical = 2 * sqrt(a * w²).
In our case, the natural frequency (w) is 0.5, so we can calculate co_critical as follows: co_critical = 2 * sqrt(a * 0.5²).
Since the damping ratio (co) is given as 1.3, we can compare it with co_critical to determine the type of unit step response.
If co > co_critical, the system is considered overdamped (Option E).
If co = co_critical, the system is considered critically damped (Option D).
If co < co_critical, the system is considered underdamped (Option C).
Based on the given values, we can determine that the system is overdamped (Option E) because the damping ratio (1.3) is greater than the critical damping ratio.
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What are some downsides to fossil fuels? (Select all that apply.)
They release large amounts of carbon dioxide when burned.
They are in a limited supply.
They are expensive to extract compared to other forms of energy.
They do not replenish themselves.
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Answer:
They release large amounts of carbon dioxide when burned.
They are expensive to extract compared to other forms of energy.
They do not replenish themselves
Explanation:
You are pushing this M = 115-kg box with Fa = 424 Newtons. (Fa = "Your applied force") But it's futile. The box isn't going anywhere. Calculate the frictional force of the floor on the box against you.
Answers
Explanation:
We have,
Mass of a box is 115 kg
Applied force is 424 N
It is required to find the frictional force of the floor on the box against you. Frictional force is an opposing force. It opposes the motion of an object. Here the applied force is 424 N. So, the frictional force has a magnitude of 424 N but it acts in opposite direction.
Which best describes why projectiles move in a curved path?
A) They have constant horizontal velocity and vertical acceleration.
B) They have horizontal acceleration and constant vertical velocity.
C) They have horizontal momentum and constant vertical velocity.
D) They have horizontal acceleration and vertical momentum.
Answers
Answer:
A. The have horizontal velocity and vertical acceleration.
Explanation:
Projectiles move in a curved path because : ( A ) They have constant horizontal velocity and vertical acceleration
Projectile movementProjectiles move in a curved path due to constant horizontal velocity and vertical acceleration due to gravity that acts on it. Projectile movement starts when an object is thrown/projected into the air. The object thrown into the air will travel in a curved path known as trajectory.
Hence we can conclude that Projectiles move in a curved path because They have constant horizontal velocity and vertical acceleration.
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A uniform rod rotates in a horizontal plane about a vertical axis through a point which is 1.5 m away from its center. The rod is 10 m long, weighs 16.2 N, and rotates at 200 rev/minute. Calculate (a) Its rotational kinetic energy. (b) The magnitude of its angular momentum about the axis.
Answers
Given data:Length of uniform rod = 10 mWeight of the rod = 16.2 NDistance of the point from the center of the rod = 1.5 mRotations per minute = 200 rev/min(a) Rotational kinetic energyThe formula for rotational kinetic energy is given as;KE=1/2Iω²Where,
I = moment of inertiaω = angular velocity of the bodyAt first, the moment of inertia of the uniform rod will be calculated as;I = 1/12ML²I = 1/12 × 16.2 N × (10 m)²I = 135 N.m²Substituting the above values in the formula of rotational kinetic energy;KE=1/2Iω²KE = 1/2 × 135 N.m² × (200 rev/min × 2π rad/rev ÷ 60 sec/min)²KE = 141.37 JTherefore, the rotational kinetic energy of the rod is 141.37 J.(b) Magnitude of angular momentumThe formula for angular momentum is given as;L = IωWhere,I = moment of inertiaω = angular velocity of the bodySubstituting the calculated values in the above formula;L = IωL = 135 N.m² × 200 rev/min × 2π rad/rev ÷ 60 sec/minL = 2827.43 N.m.sTherefore,
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Davien and Jackson are headed to a beach that is 50km from school. At noon, Davien leaves his house that is 10 km closer to the beach than the school is and moves at 40 km/h. Jackson starts from school at 12:30 P.M. And moves at 100 km/h. What time does Davien reach the beach? * Answer Format: Time
Answers
Distance between Davien's school and beach, D = 50 km.
Also, Davian's house is 10 km closer to the beach than the school.
So, distance between Davien's house and beach, d = 40 km.
Speed of Davian, s = 40 km/h.
Now, time taken is given by :
\(t =\dfrac{Distance}{Speed}\\\\t=\dfrac{40}{40}=1\ hour\)
Therefore, Davien reach the beach at 1 : 30 P.M .
Hence, this is the required solution.
A force of 6.0 N gives a 2.0 kg block an acceleration of 3.0
m/s² to the right.
The force of friction acting on the block is
N.
Answers
A 600 g bat is swung quickly and hits a 150 g baseball. Which is true? O The bat exerts a larger force on the ball than the ball exerts on the bat. O The bat exerts a force on the ball, but the ball does not exert a force on the bat. O The bat exerts the same amount force on the ball as the ball exerts on the bat. O The bat exerts less force on the ball than the ball exerts on the bat.
Answers
The correct option is C. The bat exerts the same amount of force on the ball as the ball exerts on the bat.
In physics, pressure is an influence that may exchange the motion of an item. A force can purpose an object with mass to alternate its velocity (e.g. moving from a nation of relaxation), i.e., to boost up. its miles are measured inside the SI unit of newton (N). force is represented with the aid of the symbol F (formerly P).
The unique form of Newton's 2d regulation states that the net pressure appearing upon an object is identical to the fee at which its momentum modifications with time. If the mass of the item is steady, this regulation implies that the acceleration of an item is immediately proportional to the internet force appearing on the object, is within the direction of the internet force, and is inversely proportional to the mass of the object.
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The cosmic background radiation is observed to come from The cosmic background radiation is observed to come from radio antennae in New Jersey. all directions equally. the center of the universe. the center of our Galaxy.
Answers
The correct option is d) The cosmic background radiation is observed to come from all directions equally.
Option (d) is correct: the cosmic background radiation is observed to come from all directions equally. This observation is a significant piece of evidence supporting the Big Bang theory. The cosmic background radiation is the remnant of the radiation that filled the early universe, shortly after the Big Bang. As the universe expanded and cooled down, this radiation stretched and cooled as well, becoming the faint microwave radiation that we detect today.
The discovery of the cosmic background radiation in 1964 by Arno Penzias and Robert Wilson was a major breakthrough in cosmology. Its isotropic nature, meaning it is observed from all directions, strongly supports the idea that the universe began in a hot, dense state and has been expanding uniformly in all directions since then. The cosmic background radiation provides crucial insights into the early universe and has been a cornerstone in our understanding of cosmology.
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give the relation of speed of sound with the density and temperature
Answers
Answer:
The greater the density of a medium, the slower the speed of sound. This observation is analogous to the fact that the frequency of a simple harmonic motion is inversely proportional to m, the mass of the oscillating object.
Air molecules have more energy at higher temperatures, which means they vibrate faster. This allows the sound waves to also travel faster because they are propelled by collisions between the molecules
What is the IMA of the inclined plane.
Answers
Answer:
Explanation:
12
is it chronoligical order
descrption
compare contrast
cause and effect or problem and solution
Answers
Answer:
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