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m_a_m_a [10]
4 years ago
9

List possible limitations to scientific models

Physics
1 answer:
Andru [333]4 years ago
5 0
(a). Models are not totally inclusive, that is they do not contain all the possible data about an object. (b). Approximations are normally used, since these are not exact, different results may be observed for real events and model events. (c). Loss of accuracy as a result of over simplification.
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A 21.3 A current flows in a long, straight wire. Find the strength of the resulting magnetic field at a distance of 45.7 cm from
Bezzdna [24]

Answer:

The magnetic field strength due to current flowing in the wire is9.322 x 10⁻⁶ T.

Explanation:

Given;

electric current, I = 21.3 A

distance of the magnetic field from the wire, R = 45.7 cm = 0.457 m

The strength of the resulting magnetic field at the given distance is calculated as;

B = \frac{\mu_o I}{2\pi R}

Where;

μ₀ is permeability of free space = 4π x 10⁻⁷ T.m/A

B = \frac{\mu_o I}{2\pi R}\\\\B = \frac{4\pi*10^{-7} *21.3}{2\pi(0.457)}\\\\B = 9.322 *10^{-6} \ T

Therefore, the magnetic field strength due to current flowing in the wire is 9.322 x 10⁻⁶ T.

7 0
3 years ago
Three samples of gas each exert 740. mm Hg in separate 2 L containers. What pressure do they exert if they are all placed in a s
Usimov [2.4K]
According to Dalton's law of partial pressure, the total pressure exerted is simply equal to the sum of the partial pressures of the individual gases. Given that all three samples of gas each exert 740 mmHg, when they are placed in a single 2 L container, they exert a pressure of 2220 mmHg on the container which is the sum of their individual pressures. 
5 0
3 years ago
A student sees a newspaper ad for an apartment that has 1330 square feet of floor space. How many square meters of area are ther
hichkok12 [17]
One square meter equals 10.7 feet. 

1330 ft^2 * \frac{1m}{10.7ft^2} = 123.561
8 0
4 years ago
An airplane is flying in a horizontal circle at a speed of 480 km/h (). If its wings are tilted at angle =40° to the horizontal
german

Answer:

R = 2162 m

Explanation:

When wings of the airplane makes an angle of 40 degree with the horizontal so here we can say that force due to air is having two components

F_y = mg

F_x = \frac{mv^2}{R}

now we know that

F_y = F cos40

F_x = F sin40

also we know that

v = 480 km/h

v = 133.3 m/s

now plug in all data in above equations

tan 40 = \frac{v^2}{Rg}

R = \frac{v^2}{g tan40}

R = \frac{133.3^2}{9.8 tan40}

R = 2162 m

6 0
3 years ago
You hear three beats per second when two sound tones are generated. The frequency of one tone is known to be 610 Hz. The frequen
mestny [16]

Answer:

F. Either B or C

Explanation:

The beat frequency is the difference of two frequencies of two waves.

Here, one wave has frequency 610 Hz and the beat frequency is 3 beats per second.

It is not mentioned which has a higher frequency. So, there are two possiblities.

\Delta f=|610-613|=3

or

\Delta f=|610-607|=3

Hence, the frequency of the other wave is 613 or 607.

4 0
3 years ago
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