A converging lens with a focal length of 40 cm and a diverging lens with a focal length of -40 cm are 160 cm apart. A 2.5 cm-tall object is 60 cm in front of the converging lens.
Calculate the image position. cm in front of the second lens.
Calculate the image height.

From these measurements,  the possible error in the volume is 10.64%. This is done by measurement and error analysis.

.

Uncertainty analysis, often known as error analysis, is the process of assessing the degree of uncertainty related to a measurement result. There can be no reliable scientific results without a proper error analysis. The accuracy and precision of the measurement determine how uncertain a measurement can be.

Using the formula

Δ\(\frac{V}{V}\) × 100 = 200 × Δ\(\frac{D}{D}\) + 100 × Δ \(\frac{L}{L}\)

ΔV = Error in volume

ΔL = Error in length =0.1 cm

ΔD = Error in diameter= 0.1 cm

V = Volume of cylinder

D = diameter of cylinder=2.1cm

L = length of cylinder=8.9 cm

Substituting the values ,

possible error in the volume = 10.64%

To know more about error analysis, visit;

https://brainly.com/question/29329078

#SPJ1

Answer: T=153minutes

Explanation:

For time period of revolution , the expression is as follows .

T² =  4π² R³ /GM , M is mass of the earth.

Putting the values

T² =  4π² (9480 x 10³)³ /(6.67 x 10⁻¹¹ )( 5.97 x 10²⁴ )

T² = 8.436 x 10⁷ s

T = 9.184x 10³ s

= 9184 s

= 153minutes .

To learn more on period of revolution,

https://brainly.com/question/23897864

https://brainly.com/question/242421?referrer=searchResults

Answer:

I think c

Explanation:

cold air pushes warm air up and then the air mixes(im not sure)

The most likely true statement about asynchronous communication is that it is helpful when employees work across multiple time zones.

Asynchronous communication refers to a mode of communication where participants do not need to be present or engaged simultaneously. Instead, they can send and receive messages at their convenience.In today's globalized society, businesses often have teams distributed across different geographical locations and time zones. Asynchronous communication becomes invaluable in such scenarios as it allows team members to collaborate effectively without the constraints of real-time interactions. By utilizing tools like email, project management platforms, or messaging apps, individuals can communicate and exchange information regardless of their location or the time differences.

Asynchronous communication also offers benefits such as flexibility and increased productivity. Team members have the freedom to work at their own pace and prioritize tasks accordingly. It provides opportunities for thoughtful and well-crafted responses, as individuals can take time to gather information or reflect on complex matters before replying.While asynchronous communication is advantageous for teams operating across multiple time zones, it does not rely on all employees working in the same time zone. In fact, it is designed to accommodate diverse schedules and allow individuals to collaborate efficiently despite their varying work hours.

for such more questions on time

https://brainly.com/question/4931057

#SPJ8

Answer:

Explanation:

A Pythagorean triple consists of three positive integers a, b, and c, such that a2 + b2 = c2. ... The name is derived from the Pythagorean theorem, stating that every right triangle has side lengths satisfying the formula a2 + b2 = c2; thus, Pythagorean triples describe the three integer side lengths of a right triangle.

Answer: Momentum of an object, p = 6 kg-m/s

Explanation: It is given that,

Mass of an object, m = 5 kg

Velocity of that object, v = 1.2 m/s

We need to find the momentum of an object. It is equal to the product of mass and its velocity. Mathematically, it is given by :

p = m v

p = 6 kg-m/s

So, the momentum of an object is 6 kg-m/s. Hence, this is the required solution.

I uploaded the answer to a file hosting. Here's link:

tinyurl.com/wpazsebu

Use the work-energy theorem. The total work done on the plane is equal to the change in its kinetic energy:

W = ∆K

W =  1/2 (1.5 kg) (6 m/s)² - 1/2 (1.6 kg) (8 m/s)²

W = -21 J

(Note that the work must be negative since the "braking" force opposes the direction in which the plane is moving.)

Answer:

Power = 4000watts

Energy = 22.22Joules

Explanation:

Power = I²R

I is the current

R is the resistance

t is the time

Given the following

I = 20Amps

R = 10ohms

t = 3miuntes = 180secs

Substitute

P = 20²*10

P = 400*10

P = 4000Watts

Hence the amount of power used is 4000Watts

Energy used = Power/time

Energy used= 4000/180

Energy used = 22.22Joules

Answer:

26.562

Explanation:

1+25= 26

0.362+0.2= 0.562

26+0.562= 26.562

or just use a calculator

Answer:

20 meters

Explanation:

d = (1/2) * a * t^2

where:

d is the distance (skid distance),

a is the acceleration,

t is the time.

In this case, the automobile comes to rest, so the final velocity is 0 m/s. We know the initial velocity is 20 m/s, and the time is 2 seconds.

To find the acceleration, we can use the formula:

a = (final velocity - initial velocity) / time

a = (0 - 20) / 2 = -20 / 2 = -10 m/s^2

Substituting the values into the equation of motion:

d = (1/2) * (-10) * (2^2)

d = (1/2) * (-10) * 4

d = -20 meters

The length of the skid distance is 20 meters (option B).

Answer:

a sample of water boils and releases gas.

Answer:Rubidium or answer 1

Explanation:took quiz

Answer: Rubidium (Rb) is more reactive than strontium (Sr) because strontium atoms must lose more electrons.

Explanation: Look at the elements they are organized on the periodic table based on their properties. (A) correctly predicts and explains the chemical reactivity of two metals.

Answer:

can someone please answer this i need this for a mastery test aswell

Explanation:

it would be very appreciated

Answer:

3.45 inches = 8.763e-5 kilometers

Answer:

Theres no given?

Explanation:

Well, whatever.

I observed the shift of their sunset time.

Examples like:

January to June = their sunset time increased while

July to December = their sunset time decreased

An autobiography, like a memoir, is the writer's recounting of his or her life and is written in the first person, making the writer the protagonist of the narrative.

Contemporary/Realistic: In order to accurately portray our environment and society, realistic fiction develops fictional people and circumstances. Growing up and dealing with social and personal issues are the main themes. Characters in this genre are depicted as they learn about both themselves and others.

Historical and contemporary fiction make up realistic fiction's two subgenres. Unlike current fiction, which takes place in the present or recently past, historical fiction takes place at a period that is far enough back in history to be deemed history.

To know more about realistic piece of fiction visit:-

https://brainly.com/question/29587655

#SPJ4

Answer: the answer is b

Explanation:

edge

Answer:

Convective heat transfer is the transfer of heat between two bodies by currents of moving gas or fluid. In free convection, air or water moves away from the heated body as the warm air or water rises and is replaced by a cooler parcel of air or water.

Explanation:

Hope this helped and have a great day

Heat can be transferred by convection through liquids. Heat travels where warmer liquid rises and cooler liquid sinks. An example of this can be heating up a pot of water. Hope this helps!

The frequency calculator will let you find a wave's frequency given the wavelength and its velocity or period in no ... velocity equals 320 m/s and its wavelength is 8 m. Find its frequency. f = 320 m/s / 8 m. f = 40/s. f = 40 Hz.

Answer:

  1.234567 kA

Explanation:

The prefix k stands for kilo-, or 10³. The prefix m stands for milli-, or 10⁻³. The sum shown is ...

  1.234 kA + 0.000567 kA = 1.234567 kA

Answer: In vision, the ventral stream controls identification of an object, and the dorsal stream controls action toward the object.

Explanation: The ventral stream is associated with object recognition and form representation.

Dorsal stream  a pathway that carries visual information from the primary visual cortex to the parietal lobe.

Hope it helps :)

The correct answer isThe astronaut's b) mass remains the same.

The mass of an object remains constant regardless of its position or distance from the center of the Earth. Mass is a measure of the amount of matter in an object and is an intrinsic property. It does not change with the position or location of the object.

On the other hand, the weight of an object can vary depending on its distance from the center of the Earth. Weight is the force experienced by an object due to gravity and is dependent on the mass of the object and the gravitational acceleration at its location.

Read more on mass here:https://brainly.com/question/20142760

#SPJ1

As an astronaunt travels from the surface of the earth to a postion that is four times

as far away from the center of the earth, the astronaut's

a) mass decreases

b)

mass remains the same

c) weight increases

d) weight remains the same

A. Centripetal force acting on the two stars is the reason why the two stars will not crash into one another

B. The mass of each stars, given they maintain a constant distance of 8×10¹⁰ m is 7.68×10²⁷ Kg

A. Why don't the two stars crash into one another?

Centripetal force is the force that acts to keep an object moving in a circle. Since the two stars undergoes revolution, this means they rotate in a circle. Thus, centripetal force is acting on them.

Therefore, we can say that the two stars will not crash into one another due to the centripetal force

B. How do I determine the mass of each stars?

We can obtain the mass of each stars as illustrated below:

F = GM₁M₂ / r²

Note: They rotate mid-way. Thus distance apart (r) = 2r

F = GM₁M₂ / (2r)²

F = GM₁M₂ / 4r²

Also, centripetal force is given as:

F = mv² / r

Thus, we have:

mv² / r = GM₁M₂ / 4r²

But

v = 2πr / T

v² = (2πr / T)² = 4π²r² / T²

M₁ = M₂ = m

Thus, we have

m4π²r² / rT² = Gmm / 4r²

4π²r / T² = Gm / 4r²

Cross multiply

mGT² = 4r² × 4π²r

mGT² = 16π²r³

Divide both sides by GT²

m = 16π²r³ / GT²

From the question given, we have:

m = 16π²r³ / GT²

m = [16 × 3.14² × (8×10¹⁰)³] / [6.67×10¯¹¹ × (3.97×10⁸)²]

m = 7.68×10²⁷ Kg

Thus, the mass of each stars is 7.68×10²⁷ Kg

Learn more about mass:

https://brainly.com/question/20488465

#SPJ1

Answer:

B.

Divide the height of the valley walls by the rate of erosion.

Explanation:

There is a relationship between the rate of erosion and the hieght at which it is eroded according to Newton's law of motion. In the case of the scenario above, the best way to determine the time the river started carving the valley would be the division of the height of the valley walls by the rate of erosion.

These aforementioned concepts differ in that:

Learn more about stimulation thresholds:

https://brainly.com/question/28787950

#SPJ4

Answer:

Approximately \(0.45\; \rm s\), assuming that air resistance is negligible and that \(g = 9.81\; \rm m\cdot s^{-2}\).

Explanation:

The ball starts to fall the moment it rolls of the edge of the table.

Assume that gravity is the only force acting on the ball during its fall (that is, there's no air resistance to slow the ball down.) The vertical acceleration of this ball during the fall would be constantly equal to \((-g)\) (negative because the ball is accelerating downwards.)

The following SUVAT equation would give the height \(h\) of this ball at time \(t\):

\(\displaystyle h = \frac{1}{2}\, (-g)\cdot t^{2} + v_{0} \cdot t + h_{0}\).

Since the table is horizontal, the vertical velocity of this ball would be \(0\) the moment it rolls of the edge. In other words: \(v_{0} = 0\; \rm m\cdot s^{-1}\).

The initial height of this ball when it rolls of the table is \(h_{0} = 1.0\; \rm m\), same as the height of the table.

Hence, the height \(h\) of this ball at time \(t\) would be:

\(\begin{aligned}h &= \frac{1}{2}\, (-g)\cdot t^{2} + v_{0} \cdot t + h_{0} \\ &= \frac{1}{2}\, (-g) \cdot t^{2} + h_{0}\end{aligned}\).

At \(t = 0\; \rm s\), the height of this ball would be \(1.0\; \rm m\). The ball would be on the ground by the time \(h = 0\; \rm m\), Set the right-hand side of this equation to \(0\) and solve for the time \(t\) at which the ball is on the ground:

\(\displaystyle \frac{1}{2}\, (-g) \cdot t^{2} + h_{0} = 0\).

\(\displaystyle \frac{1}{2}\, (-g) \cdot t^{2} = - h_{0}\).

\(\displaystyle t = \sqrt{\frac{2\, h_{0}}{g}}\).

Substitute in the values \(h_{0} = 1.0\; \rm m\) and \(g = 9.81\; \rm m\cdot s^{-2}\):

\(\begin{aligned} t &= \sqrt{\frac{2\, h_{0}}{g}} \\ &= \sqrt{\frac{1.0\; \rm m}{9.81\; \rm m\cdot s^{-2}}} \\ &\approx0.45\; \rm s\end{aligned}\).

In other words, the ball would be in the air for approximately \(0.45\; \rm s\). (The initial horizontal velocity of this ball does not affect the duration of this fall.)

Answer:

Non-zero digits

Explanation:

umm (ꏿ﹏ꏿ;)

Answer:

There's three rules on determining how many important quantities are in a number: Non-zero digits are always predominant. Any zeros between two significant digits are always major. The final zero or dangling zeros in the decimal segment are really only important.

I hope this answered your question, have a nice day!

12. The time taken for the journey is 400 s

13. The time taken for the train is 200 s

14. The time taken is 7 h

15. The time taken for the beetle is 12 s

16. The time taken for the journey is 0.0068 h

The time taken in each case as given by the question can be obtain as follow:

12. The time taken for the journey

Time taken = Distance / Speed

Time taken = 26000 / 65

Time taken = 400 s

13. The time taken for the train

Time taken = Distance / Speed

Time taken = 3200 / 16

Time taken = 200 s

14. The time taken to travel

Time taken = Distance / Speed

Time taken = 672 / 96

Time taken = 7 h

15. The time taken for the beetle

Time taken = Distance / Speed

Time taken = 1.08 / 0.09

Time taken = 12 s

16. The time taken for the journey

Time taken = Distance / Speed

Time taken = 35 / 5147

Time taken = 0.0068 h

Learn more about time:

https://brainly.com/question/13257215

#SPJ1

Answer:

As = 6[km/hr]

Explanation:

First we must convert the units from minutes to hours.

\(30[min]*[\frac{1hr}{60min} ]=0.5[hr]\)

Now the average velocity is defined as the relationship between space and time.

\(As=3/0.5\\As=6[km/hr]\)

The correct answer is Option B. The statement "they have the same A-number but different Z-number" is true .

Atoms of the same element only differ because one of the atoms has more electrons, making it an ion.

This difference does not affect the mass of the atom, which is determined by the sum of its protons and neutrons, represented by the atomic mass or A-number.

The number of protons in an atom is called the atomic number or Z-number.

The Z-number of an element is unique to it. All the atoms of a given element have the same number of protons.

Thus, for example, all carbon atoms have six protons, making the Z-number of carbon 6.

However, different isotopes of an element can have different numbers of neutrons.

This means that they have a different atomic mass or A-number.

Therefore, they have the same A-number but different Z-number.

Therefore the correct Option is B.

For more questions on Atoms

https://brainly.com/question/6258301

#SPJ8

The example of energy transformation that could never occur, as explained by the second law of thermodynamics, is the 400 J of heat added to the operating gas of a heat engine is transformed into 400 J of work. Option A is correct.

The second law of thermodynamics states that in any energy transformation, the total entropy (measure of disorder) of a closed system will always increase or remain constant. It means that some energy will always be wasted as heat and cannot be completely converted into useful work. The second law of thermodynamics is a fundamental law of nature that governs energy transformations.

It states that in any energy transformation process, the total entropy (measure of disorder) of a closed system will always increase or remain constant. Entropy can be thought of as a measure of the amount of energy that is unavailable to do useful work. It is impossible to transform all 400 J of heat into work without generating any waste heat. This is because the heat engine must expel some heat to the cold reservoir to comply with the second law. Option A is correct.

To know more about the Energy transformation, here

https://brainly.com/question/13592831

#SPJ1