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rewona [7]
3 years ago
6

What is the kinetic energy of a 1 kg pie if it is thrown at 10 m/s?

Physics
1 answer:
nignag [31]3 years ago
7 0

Given

mass (m) = 1 kg

velocity (v) = 10 m/s

kinetic energy ( ke) = ?

,we know

K.E =1/2 m v²

= 1/2 * 1 * 10²

= 100/2

=50 joule

hope it helps :)

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Answer:

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Explanation:

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A 0.325 g wire is stretched between two points 57.7 cm apart. The tension in the wire is 650 N. Find the frequency of first harm
Galina-37 [17]

Answer:

f = 931.1 Hz

Explanation:

Given,

Mass of the wire, m = 0.325 g

Length of the stretch, L = 57.7 cm = 0.577 m

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Frequency for the first harmonic = ?

we know,

v =\sqrt{\dfrac{T}{\mu}}

μ is the mass per unit length

μ = 0.325 x 10⁻³/ 0.577

μ = 0.563 x 10⁻³ Kg/m

now,

v =\sqrt{\dfrac{650}{0.563\times 10^{-3}}}

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The wire is fixed at both ends. Nodes occur at fixed ends.

For First harmonic when there is a node at each end and the longest possible wavelength will have condition

          λ=2 L

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we now,

       v = f λ

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The frequency for first harmonic is equal to f = 931.1 Hz

7 0
3 years ago
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where A is the area of the plate and ε₀ is the absolute permittivity.

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E = \frac{Q}{\epsilon_o A}

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Area of the plates, A = πr² = 1.5 m²

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Q = E×ε₀×A

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8 0
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Alenkasestr [34]

Answer:

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