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TEA [102]
4 years ago
12

At the bottom of its swing, does the pendulum have kinetic potential energy?

Physics
1 answer:
san4es73 [151]4 years ago
8 0

Answer:

An active pendulum has the most kinetic energy at the lowest point of its swing when the weight is moving fastest. An ideal pendulum system always contains a stable amount of mechanical energy, that is, the total of kinetic plus potential energy.

Explanation:

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Combustion chamber

Expalnation

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3 years ago
How many volts would it take to push 1 amp through a resistance of 1 ohm?
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V=I x R so V= 1 x 1 =1V
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3 years ago
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The human eye is most sensitive to green light of wavelength 505 nm . Experiments have found that when people are kept in a dark
liq [111]

1. 5.94\cdot 10^{14} Hz

The frequency of a photon is given by:

f=\frac{c}{\lambda}

where

c is the speed of light

\lambda is the wavelength

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\lambda=505 nm=5.05\cdot 10^{-7}m

So, the frequency of the photon is

f=\frac{3\cdot 10^8 m/s}{5.05\cdot 10^{-7} m}=5.94\cdot 10^{14} Hz

2. 3.94\cdot 10^{-19}J, 2.46 eV

The energy of a photon is given by

E=hf

where

h is the Planck constant

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f=5.94\cdot 10^{14} Hz

so its energy in Joules is

E=(6.63\cdot 10^{-34}Js)(5.94\cdot 10^{14}Hz)=3.94\cdot 10^{-19}J

And since

1 eV = 1.6\cdot 10^{-19}J

The energy in eV is

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7 0
3 years ago
A spy satellite uses a telescope with a 1.7-m-diameter mirror. It orbits the earth at a height of 180 km.
WINSTONCH [101]

Answer: the minimum spacing that must be there between two objects on the earth's surface if they are to be resolved as distinct objects by this telescope 6.45 cm

Explanation:

Given that;

diameter of the mirror d = 1.7 m

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wavelength λ = 500 nm = 5 × 10⁻⁹ m

Now Angular separation from the peak of the central maximum is expressed as;

sin∅= 1.22 λ / d

sin∅ = (1.22 × 5 × 10⁻⁹) / 1.7

 sin∅ = 3.588 × 10⁻⁷

we know that;

 sin∅  = object separation / distance from telescope

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object separation = 3.588 × 10⁻⁷  × 180 × 10³

object separation =6.45 × 10⁻² m

then we convert to centimeter

object separation = 6.45 cm

Therefore the minimum spacing that must be there between two objects on the earth's surface if they are to be resolved as distinct objects by this telescope 6.45 cm

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3 years ago
What do you mean by 100W power ?​
Alex73 [517]

Answer:

What u mean

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