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Paha777 [63]
3 years ago
11

What is the benefit of using simple computational models in a spreadsheet application, like the one used in this course, to pred

ict mechanical energy and related values?
(1 point)

It is easy to calculate new scenarios.


It is easy to learn new concepts.


It is easy to compare different cases.

It is easy to detect calculation errors.
Physics
2 answers:
Ghella [55]3 years ago
7 0

Answer:

Option C would be the correct alternative.

Explanation:

  • An integrated programming program for arranging, evaluating, and saving analytical results seems to be a spreadsheet. Spreadsheets have been established as computerized analogs to worksheets for manual banking.
  • There are various variables in something like a theoretical model that describes the structure being analyzed. By changing the variables as well as sometimes throughout combination while evaluating the outcome, analysis is performed.

The other choices offered aren't relevant to the existing contract below in the description section.

olya-2409 [2.1K]3 years ago
6 0

Answer:

c

Explanation:

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"What is the magnifying power of an astronomical telescope using a reflecting mirror whose radius of curvature is 5.9 m and an e
notka56 [123]

Answer:

The Magnifying power of a telescope is M = 109.26

Explanation:

Radius of curvature R = 5.9 m = 590 cm

focal length of objective f_{objective} = \frac{R}{2}

⇒ f_{objective} = \frac{590}{2}

⇒ f_{objective} = 295 cm

Focal length of eyepiece f_{eyepiece} = 2.7 cm

Magnifying power of a telescope is given by,

M = \frac{f_{objective} }{f_{eyepiece} }

M = \frac{295}{2.7}

M = 109.26

therefore the Magnifying power of a telescope is M = 109.26

4 0
3 years ago
A planar electromagnetic wave is propagating in the +x direction. At a certain point P and at a given instant, the electric fiel
Free_Kalibri [48]

Answer:

B=2.74\times 10^{-10}\ T

Explanation:

It is given that,

A planar electromagnetic wave is propagating in the +x direction.The electric field at a certain point is, E = 0.082 V/m

We need to find the magnetic vector of the wave at the point P at that instant.

The relation between electric field and magnetic field is given by :

c=\dfrac{E}{B}

c is speed of light

B is magnetic field

B=\dfrac{E}{c}\\\\B=\dfrac{0.082}{3\times 10^8}\\\\B=2.74\times 10^{-10}\ T

So, the magnetic vector at point P at that instant is 2.74\times 10^{-10}\ T.

3 0
3 years ago
A vacuum cleaner has a rating of 460 W on 230 V mains. The value of the fuse connected in the plug will be
amid [387]

Answer:

2 amps

Explanation:

Given data

Power = 460W

voltage= 230V

Required

The amperage/ current of the fuse

Recall  P= IV

I= P/V

I= 460/230

I=2 amps

Hence the current of the fuse is 2 amps

7 0
2 years ago
A 200g piece of iron is heated at 100C. It is than dropped into water to bring its temperature down to 22C. What is the amount o
gizmo_the_mogwai [7]

Answer:

6926.4J

Explanation:

Given parameters:

Mass of iron  = 200g

Initial temperature  = 100°C

Final temperature  = 22°C

Unknown:

Amount of heat transferred to the water  = ?

Solution:

The quantity of heat transferred to the water is a function of mass and temperature of the iron;

 H  = m c Ф

m is the mass of the iron

Ф is the change in temperature

C is the specific heat capacity of iron = 0.444 J/g°C

Now;

 insert the parameters and solve;

      H  = 200 x 0.444 x (100-22)

      H = 6926.4J

8 0
3 years ago
When unequal resistors are connected in series across an ideal battery,the same power is dissipated in each one.the potential di
Agata [3.3K]

Answer:

the current flowing in each is the same.

Explanation:

When resistors are connected in series, they are connected in the same branch of the circuit - this means that the same current flows through each resistor.

The other options listed are wrong because:

the same power is dissipated in each one --> false: the power dissipated in each resistor is P=I^2 R, where I is the current and R the resistance, so it depends on the value of the resistance

the potential difference across each is the same.-- > false: this is true in parallel circuits, not series circuits

the equivalent resistance of the circuit is less than that of the smallest resistor.--> false: the equivalent resistance of a series circuit is the sum of the individual resistances: R = R_1 + R_2 + ..., so it is larger than the resistance of the smallest resistance

the equivalent resistance of the circuit is equal to the average of all the resistances. --> false: the equivalent resistance of a series circuit is the sum of the individual resistances: R = R_1 + R_2 + ..., not the average

7 0
3 years ago
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