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Norma-Jean [14]
3 years ago
5

How does area affect pressure?​

Physics
2 answers:
inysia [295]3 years ago
4 0

Answer:

???????????????? Tell me also

Arisa [49]3 years ago
4 0

Answer:

Area is inversely proportional to pressure.

Explanation:

✍ Lesser the area, higher the pressure.

✍ More the area, lower the pressure.

Thank You

<h2>If you liked the answer then, plzz.. mark as BRAINLIEST...</h2>
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What should be the spring constant k of a spring designed to bring a 1200 kg car to rest from a speed of 85 km/h so that the occ
borishaifa [10]

Answer:

k = 5178.8 N/m

Explanation:

As we know that spring mass system will oscillate at angular frequency given as

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now we have

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now the maximum acceleration of the spring block system is at its maximum compression state which is given as

a = \omega^2 A

here A= maximum compression of the spring

so here in order to find maximum compression of the spring we will use energy conservation as we know that initial total kinetic energy of the car will convert into spring potential energy

\frac{1}{2}mv^2 = \frac{1}{2}kA^2

here we know that

v = 85 km/h

v = 85 \times\frac{1000}{3600} = 23.61 m/s

now we have

(1200)(23.61^2) = kA^2

A^2 = \frac{6.68 \times 10^5}{k}

now from above equation of acceleration we have

5.0 g = (\frac{k}{m})\sqrt{\frac{6.68 \times 10^5}{k}}

5.0(9.81) = \sqrt{k}(0.68)

k = 5178.8 N/m

6 0
3 years ago
Use the second laws of thermodynamics to explain how an incandescent bulb might be less efficient than a compact fluorescent bul
Vsevolod [243]

An incandescent bulb produces light that comes from the heating of a filament. A compact fluorescent bulb produces light when a substance is hit by electromagnetic radiation. Compact fluorescent bulbs are more efficient than incandescent bulbs.

The first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic processes. Therefore, a system with lower heat emissions would be more efficient.

The second law of thermodynamics states that the total entropy of an isolated system (the thermal energy per unit temperature that is unavailable for doing useful work) can never decrease. In our context, it means that the system with the least amount of losses would be more efficient. As a conclusion the fluorescent bulb would be more efficient.

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2 years ago
Create a sketch that shows the particles of matter in two substances that differ in density. Label the sketch to show which subs
Whitepunk [10]
Draw something similar to which has more mass in density. For example, a bowling ball and a volley ball. Both substances are similar in size but the bowling. All feels heavier than the volley ball. Label the volleyball for less density and the bowling ball with more density.
8 0
3 years ago
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You would like a solenoid that is 32 cm long to produce a magnetic field of 0.78 T when it carries a
pantera1 [17]

Answer:

N = 25795 loops

Explanation:

The magnetic field of a solenoid can be calculated by using the following formula:

B = \frac{\mu NI}{L}\\N = \frac{BL}{\mu I}

where,

N = No. of loops = ?

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L = Length of solenoid = 32 cm = 0.32 m

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μ = permeability of free space = 4π x 10⁻⁷ N/A²

Therefore,

N = \frac{(0.78\ T)(0.32\ m)}{(4\pi\ x\ 10^{-7}\ N/A^2)(7.7\ A)}\\

<u>N = 25795 loops</u>

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