All categories

4 years ago

Different between real image and virtual image

1 answer:

7 0

Real images are not fixed or filtered virtual images can be cropped to avoid things that can’t be in the picture or blurry to just make one person the one to be looked at

You might be interested in

Which set of arrows represents the induced magnetic force? A B C

vazorg [7]

The answer would be b because b has a set of arrows represents the induced magnetic force

3 0

4 years ago

g If 6.35 moles of a monatomic ideal gas at a temperature of 320 K are expanded isothermally from a volume of 1.45 L to a volume

vitfil [10]

Answer:

(a) change in the internal energy of the gas is zero

(b) the work done by the gas is 16.93 kJ

Explanation:

Given;

number of moles of gas, n = 6.35 moles

temperature of the gas, T = 320 K

initial volume of the gas, V₁ = 1.45 L

final volume of the gas, V₂ = 3.95 L

Part (a)

For isothermal expansion, temperature is constant and internal energy will also be constant.

Therefore, change in the internal energy of the gas is zero since the gas expanded isothermally (constant temperature).

ΔU = Q - W

where;

ΔU is change in internal energy

Q is heat transferred to the system

W is the work done by the system

Thus, Q = W

ΔU = 0

Part (b)

the work done by the gas

$W = nRTln{[\frac{V_2}{V_1}]$

where;

R is gas constant = 8.314 J/mol.K

$W = (6.35)(8.314)(320)ln{[\frac{3.95}{1.45}]}\\\\W =16930.4\ J\\\\W = 16.93\ kJ$

Part (c)

the heat flow into or out of the gas

Q = ΔU + W

Q = 0 + 16.93 kJ

Q = 16.93 kJ

Since the heat flow is positive, then it is heat flow into the gas.

3 0

3 years ago

Which is more 3 tons or 6001 pounds

Mnenie [13.5K]

3 tonnes

The answer is 3 tonnes, because 3 tonnes equal 6613.87 pounds, which is higher than 6001.

I hope this helps! I would love it if you could help me answer my question too!

6 0

3 years ago

A conducting loop of radius 1.50 cm and resistance 8 × 10−6Ω is perpendicular to a uniform magnetic field of magnitude 23.0 × 10

Anika [276]

To solve this problem it is necessary to apply the concepts related to electromotive force or induced voltage.

By definition we know that the induced emf in the loop is equal to the negative of the change in the magnetic field, that is,

$\epsilon = -A \times \frac{\Delta B}{\Delta t}$

$\epsilon = -A \times (\frac{B_f-B_i}{t_f-t_i})$

Where A is the area of the loop, B the magnetic field and t the time.

Replacing with our values we have that

$\epsilon = -(\pi (1.5*10^{-2})^2)(\frac{0-23*10^{-6}}{7*10^{-3}-0})$

$\epsilon = 2.3225*10^{-6}V$

Therefore the thermal energy produced is given by

$E = P*t = \frac{\epsilon^2}{R}t$

$E = \frac{(2.3225*10^{-6})^2}{8*10^{-6}}*(7*10^{-3})$

$E = 4.719*10^{-9}J$

The thermal energy produced in the loop is $4.719*10^{-9}J$

4 0

3 years ago

You should check your battery ___________.

podryga [215]

One should check the battery every week.

A battery if not maintained properly can cause it to die earlier or get damaged. The reasons why should the battery be checked regularly is that due to improper management of the battery and also the weather conditions, the battery usually gets corroded easily and the battery won't be able to work properly.

The connections must be checked properly so that the battery gets charged properly and should not die while driving.

5 0

3 years ago

Read 2 more answers

Different between real image and virtual image​

Different between real image and virtual image