Given what we know, we can confirm that the objective lens magnifies the object on the slide, producing the real image and that the ocular lens magnifies that image, forming the virtual image.
What is a real and virtual image?This has to do with the origin of the image we are seeing through the microscope. It is described as the real image given that what we see through the objective lens is a magnification of the original slide. Then, the ocular lens takes that image and magnifies it further, since it does not come from the slide, it is a virtual image.
Therefore, we can confirm that the objective lens magnifies the object on the slide, producing the real image and that the ocular lens magnifies that image, forming the virtual image.
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Can someone pls help me with this question
Answer:
Excuse me, but for me, this paragraph is so small, I can't see. I'm sorry but can you show the image a little bit better? Thank You!
Explanation:
In november 2013 an object orbiting the sun seemed to disappear behind the sun. When a satellite did not detect the object, astronomers thought that the object had been destroyed when it passed close to the sun. However, when another satellite detected a small, bright object with a fan-shaped tail, astronomers proposed that the object was not destroyed. What type of object were astronomers most likely observing?.
Answer: Comet
Explanation: A comet is the type of object were astronomers most likely observing.
The small bight spatial object with a tail which disappears when passes over sun is called a comet. Thus, the astronomers are most likely observing the comets.
What is comet?Comets are small bright spatial object composed of dust, frozen gases and ice which can move fastly through space. A vast of the brightest comets are either unbound or have very eccentric orbits, which are elliptical orbits with one of the axes significantly longer than the other (orbits that are not closed, they can be parabolic or hyperbolic).
A comet becomes active and so observable when it approaches the Sun. It might be many years before it makes another close approach. Or it might make one close approach to the sun and never again (parabolic or hyperbolic comets, on trajectories that escape the Solar System).
Therefore, comets "vanish." Another way comets can disappear is by fragmenting when they approach the sun too closely or by colliding with it and it takes hundreds of years to reappear.
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A birdie with a mass of 0.005 kg is served at a speed of 90 m/s (This is over 200 mph!). Determine its kinetic energy. A) 0.001125 J. B) 0.45 J. C) 20.25 J. D) 40.5 J
Answer: C. 20.25J
Explanation: KE = 1/2 m v^2
m= .005, v= 90
1/2 * .005 * 90^2 = 20.25J
If A is the set of even integers less than 10, and B is the set of multiples of 3 less than 20, what is the union of sets A and B? (A) {2, 4, 6, 8} (B) {3, 6, 9, 12, 15, 18} (C){6} D) {2, 3, 4, 6, 8, 9, 12, 15, 18} (E) {2, 4, 6, 8, 10, 12, 14, 16, 18}
Answer:
(D)
Explanation:
A(2,3,4,6,8)
B(6,9,12,15,18)
(AuB)=(2,3,4,6,8,9,12,15,18)
И
Which characteristic is the same for all
electromagnetic waves in a vacuum?
o
A. Wavelength of the photons
B. Energy stored in photons
C. Speed of the photons
D. All of the above
Water is heated in a boiler that burns a fuel such as natural gas or heating oil. The boiler converts the chemical energy stored in the fuel to thermal energy. The heated water is pumped from the boiler through pipes and radiators throughout the house. There is usually a radiator in each room. The radiators get warm when the hot water flows through them. The radiators ______________________ thermal energy.
Answer:
Radiation is the transfer of heat energy through space by electromagnetic radiation. Most of the electromagnetic radiation that comes to the earth from the sun is invisible. ... In electromagnetic radiation, its frequency is the number of electromagnetic waves moving past a point each second.
Some minerals have special
properties. Which of these is a
special property that not all
minerals have?
A. crystalline structure
B. solid
C. radioactivity
D. nonliving
A spring with a spring constant of 4 N/m is stretched by Sarah's dog until extended by 2 m. How much elastic potential energy is stored by the spring?
Hi there!
Recall the equation for spring potential energy:
[tex]PE = \frac{1}{2}kx^2[/tex]
k = Spring constant (N/m)
x = extension of spring from equilibrium (m)
PE = Potential Energy (J)
Plug in the given values:
[tex]PE = \frac{1}{2}(4)(2^2) = \boxed{8 J}[/tex]
If 5000Pa a pressure is exerted on an object with the contact area 0.04m^2. Calculate the mass of an object
Answer:
20.4 Kg
Hope you could understand.
If you have any query, feel free to ask.
Light travels at 3. 0 × 108 m/s in a vacuum and slows to 2. 0 × 108 m/s in glass. What is the index of refraction of glass?.
The required value of the index of refraction of glass is 1.5.
Given data:
The speed of light in a vacuum is, [tex]c = 3.0 \times 10^{8} \;\rm m/s[/tex].
The speed of light in a glass is, [tex]v = 2.0 \times 10^{8} \;\rm m/s[/tex].
Light has the tendency to travel from one medium to another, then the difference between the speeds of light in various mediums is determined by a term, known as the index of refraction. The mathematical expression for the index of refraction of glass is,
n = c / v
Solving as
[tex]n = \dfrac{3.0 \times 10^{8}}{2.0 \times 10^{8}}\\\\n = 1.5[/tex]
Thus, we can conclude that the required value of the index of refraction of glass is 1.5.
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Answer:
1.5 is the answer
Explanation:
Which situation is the best example of translational motion? Question 1 options: a coin spinning on a desk a leaf blowing across the field a car in a parking lot with its engine running a ballerina standing on one foot.
Translational motion is a type of motion in which objects move with a change in position. The situation that best shows the translational motion is leaf blowing in the field.
Translational Motion:
It is a type of motion in which objects move with a change in position.
For example- leaf blowing in the field.
Coin spinning on the desk does not change its position.A car in the parking lot with running engine does not change its position.Standing in feet is not any kind of movement.Therefore, the situation that best shows the translational motion is leaf blowing in the field.
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A 30 000 kg train is travelling at 15 m/s towards another 45 000 kg train traveling at 5 m/s in the same direction. After the two collide, they couple together. What is the final velocity of both trains?
Momentum is conserved, so
(30,000 kg) (15 m/s) + (45,000 kg) (5 m/s) = (30,000 kg + 45,000 kg) v
where v is the speed of the coupled trains.
Solve for v :
450,000 kg•m/s + 225,000 kg•m/s = (75,000 kg) v
675,000 kg•m/s = (75,000 kg) v
75v = 675 m/s
v = 9 m/s
Which objective lens provides the highest total magnification.
Answer:
options
Explanation:
Traditional analog cameras work by briefly exposing light sensitive film to a light source. The film chemically responds to the light source in a way that records the image to which it was exposed.
digital cameras can store the information from the same light source as an array of pixels, each with a digital value corresponding to a particular color.
Which of the following statements describes a disadvantage of storing photographic information as a digital array?
A. digital images can be easily removed from a storage device or lost.
B. digital images are difficult to copy or duplicate.
C. digital images are difficult to transmit as wave pulses.
D. digital images cannot be easily stores in computer memories.
Answer: A. Digital images can be easily removed from a storage device or lost
Explanation:
I solved it in study island ( sometimes you need to have trust)
I need help with nine and 10 I will really appreciate it
Answer:
9] V = D ÷ T
Take any distance value from the graph and its relevant time.
V = 4 ÷ 2
V = 2 m/s
[You will notice that any distance values with its time will give you 2 m/s as its speed. This means that speed is constant throughout.]
10] Take the distance value and its time for the highest peak of B.
V = 20 ÷ 2
V = 10 m/s
A kicked soccer ball has an initial velocity of 25 meters per second at an angle of 40 degrees, above the horizontal.
1) Calculate the magnitude of the vertical component of the ball's initial velocity.
2) Calculate the maximum height the ball reaches above its initial position.
(1) The vertical magnitude of the ball's initial velocity is 16.075 m/s,
(2) The maximum height of the ball is 13.18 m
(1) To Calculate the vertical component of the ball's initial velocity, we use the formula below.
Formula:
Vy = Vsin∅........................ Equation 1Where:
Vy = vertical component of the ball's initial velocityV = Initial velocity of the ball∅ = angle to the horizontal.From the question,
Given:
V = 25 m/s∅ = 40°Substitute these values into equation 1
Vy = 25(sin40°)Vy = 25×0.643Vy = 16.075 m/s.(2) To calculate the maximum height reached by the ball, we use the formula below.
Formula:
H = (Vy)²/2g............... Equation 2Where:
g = Acceleration due to gravity = 9.8 m/s²Substitute the value above into equation 2
H = (16.075)²/(2×9.8)H = 13.18 mHence, (1) The vertical magnitude of the ball's initial velocity is 16.075 m/s, (b) The maximum height of the ball is 13.18 m.
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The vertical component of the ball's velocity is 16.1 m/s.
The maximum height the ball reaches above its initial position is 13.225 m.
The given parameters:
Initial velocity of the ball, u = 25 m/sAngle of inclination, Ф = 40 degreesWhat is vertical component of velocity?The vertical component of velocity is the velocity in the y-direction.
The vertical component of the ball's velocity is calculated as follows;
[tex]v_y = vsin(\theta)\\\\ v_y = 25 \times sin(40)\\\\ v_y = 16.1 \ m/s[/tex]
The maximum height the ball reaches above its initial position is calculated as follows;
[tex]v_y_f^2 = v_y_i^2 -2gh\\\\ 0 = v_y_i^2 -2gh\\\\ 2gh = v_y_i^2 \\\\ h = \frac{v_y_i^2}{2g} \\\\ h = \frac{16.1^2 }{2 \times 9.8} \\\\ h = 13.225 \ m[/tex]
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A ball is launched vertically from a marble launcher at 2.91 m/s. The ball has a mass of 3.28 kg. What is the potential energy of the ball at the top of its flight in Joules?
Answer:
The potential energy at the top of the ball's flight is 13.88784 J. (round as you need)
Explanation:
So the equation for potential energy is PE=mgh. We do not have height (h). However, we do have mass and velocity, which can be used to calculate the ball's maximum kinetic energy (KE=1/2mv^2). Because energy cannot be created or destroyed, the ball's maximum kinetic energy is equal to the ball's maximum potential energy. At the top of the ball's flight, it will have maximum potential energy.
a question about the size of the universe
Answer: The Universe has no scale, no matter and no size it is an infinite void of never-ending wonder.
Explanation:
does light travel faster in glass or air?
Light travels faster in air than glass
Answer:
[tex]\boxed{Air}[/tex]
Explanation:
Light travels faster in the air than in glass because glass has a higher refractive index than air.
glass is solid and more packed than air, so the light will have more space and less resistance in the air to travel than in glass.
[tex]-TheAnimegirl-[/tex]
A wave has angular frequency 30 rad/s and wavelength 2.0 m. What are its (a) wave number and (b) wave speed
Answer:
a) 15 b) 60 i think is the answer
The speed of the wave with a frequency of 30 rad/s and 2m wavelength is 30 m/s and the wavenumber is 0.5 m⁻¹.
What is frequency?Frequency of a wave is the number of wave cycles per unit time. Frequency is the inverse of time period of a wave. Thus, it has the unit s⁻¹ which is equivalent to 1 Hz.
Wavelength of wave is the distance between two consecutive crests or troughs. Longer wavelength is associated with shorter wavelength.
Given frequency of the wave = 30 rad/s
wavelength = 2 m
speed of the wave = frequency × wavelength
= 2 m × 30 rad/s
= 60 m/s.
Wave number = 1/ wavelength
= 1/ 2 m
= 0.5 m⁻¹.
Therefore, the wave has a speed of 60 m/s with a wave number 0.5 m⁻¹.
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Does voltage quantify the electrical potential energy?
Answer:
electric potential energy per unit charge
Explanation:
I think im not quite sure
3. A 2.00 kg ball is thrown upward at some unknown angle from the top of a 20.0 m high building. If the initial
magnitude of the velocity of the ball is 20.0 m/s. What is the value of total energy?
a. 290 J
b. 487 J
c. 593 J
d. 792 J
The period of a sound wave coming from an instrument is 0. 002 seconds. What is the frequency of the sound? Hz.
The period is the time taken by the wave to complete an oscillation. The frequency of the given sound is 500 Hz.
Period:
It is the time taken by the wave to complete an oscillation. The frequency is inversely proportional to the time:
[tex]f = \dfrac 1T[/tex]
Where,
[tex]f[/tex]- frequency
[tex]T[/tex] - period = 0.002 s
Put the value in the equation,
[tex]f = \dfrac 1{0.002}\\\\f = 500\rm \ Hz[/tex]
Therefore, the frequency of the given sound is 500 Hz.
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Benjamin place is a negatively charged glass rod near a neutrally charged metal sphere. What happens to the charges on the sphere
A The entire surface of the sphere becomes positively charged.
B The surface of the sphere on the opposite side of the glass rod becomes negatively charged.
C the surface of the sphere near the glass ride becomes negatively charged.
D the surface of the sphere near the glass rod becomes positively charged
E the entire surface of the sphere becomes negatively charged
F the surface of the sphere on the opposite side of the class ride becomes positively charged
(Pick 3 answers)
(Also this is just science)
Answer:
b,d,f
Explanation:
a wave's amplitude is 0.5 meters. if its amplitude is increased to 1 meter, how much does its energy change?
A horizontal force of 5. 0-n accelerates a 4. 0-kg mass, from rest, at a rate of 0. 50 m/s^2 in the positive direction. What friction force acts on the mass? * 0/1.
Answer: 3N
Explanation:
Fa - Ff = ma
5- Ff = 4 * .5
5- Ff = 2
Ff = 3N
Can someone pls help me
Which of the following is a science? (2 points)
Group of answer choices
Physics
Astrology
Football statistics
Language studies
Answer:
step by step explanation:
Physics
Answer:
I would say physics
Explanation:
Astrology has been rejected by the science community
Football statistics is Physical athletic stuff
and language studies is Ela
Draw a free body diagram of a person as their board accelerates them up into the sky. Be sure that, if a force is bigger than another, you show this clearly on your diagram.
Answer:
I hope it helps.
Can someone please help me with these three problems ASAP .. I have to get it done right now.. I have to get it done
