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tatuchka [14]
3 years ago
9

What is simple machine?​

Physics
1 answer:
PolarNik [594]3 years ago
8 0

Explanation:

Those tools that helps to make our work easier ,faster and more convenient in our daily life it is called simple Machine.

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Check the correctness of given equation<br> s = ut + (1/2)at^2
ruslelena [56]

Lets use Dimensional analysis.

\\ \sf\longmapsto s=ut+\dfrac{1}{2}at^2

<h3>LHS:-</h3>

\\ \sf\longmapsto s=\left[M^0LT^0\right]

<h3>RHS</h3>

\\ \sf\longmapsto ut+\dfrac{1}{2}at^2

\\ \sf\longmapsto \left[M^0LT^{-1}\right]\left[M^0L^0T^1\right]+\dfrac{1}{2}\left[M^0LT^{-2}\right]\left[M^0L^0T^1\right]^2

\\ \sf\longmapsto L+\dfrac{1}{2}\left[LT^{-2}\right]\left[T^2\right]

\\ \sf\longmapsto L+\dfrac{1}{2}L

\\ \sf\longmapsto \dfrac{2L}{2}

\\ \sf\longmapsto [L^1]

\\ \sf\longmapsto \left[M^0LT^0\right]

LHS=RHS

Hence verified

6 0
3 years ago
A very small source of light that radiates uniformly in all directions produces an electric field amplitude of 8.45 V/m at a poi
Mandarinka [93]

Answer:

4.43 kW

Explanation:

Since Intensity I = P/A = E²/2cμ₀ where P = Power, A = Area = 4πr² where r = distance from source = 61 m and E = electric field amplitude = 8.45 V/m.

P = E²A/2cμ₀ = E²4πr²/2cμ₀ = 2πE²r²/cμ₀

  = 2π(8.45 V/m)²(61 m)²/3 × 10⁸ m/s × 4π × 10⁻⁷ Tm/A

  = 4428.1 W

  = 4.4281 kW ≅ 4.43 kW

6 0
3 years ago
A 42.2 N force acts at 40* to the ground, causing the object to move a horizontal distance of 8.15 m. How much work was done on
slavikrds [6]

Answer:

W=F.dcos angle

w=42.2 x8.15 x cos40

w=343.93× cos 40

W=343.93 x 0.76

W=261.38 J

7 0
3 years ago
What is consistency paradox​
Mumz [18]

Answer:

Consistency paradox is the observation that a human being’s personality tends to remain the same over time, while their behavior can change in different situations.

Many personality characteristics are relatively constant throughout a person's life, but people can act in all sorts of ways (even ones that seem to be opposite of their personality) in different situations. For instance, even the most even-tempered and easy-going person can be driven to violence when put under enough stress or pressure.

8 0
4 years ago
Temperature is a measure of work.<br> True<br> False
Veseljchak [2.6K]
The answer is false.
5 0
3 years ago
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