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2 years ago

When the amplitudes of waves are equal, which frequency waves have the most energy?

Physics

1 answer:

Molodets [167]2 years ago

5 0

Answer:

higher frequency waves will have more energy

Explanation:

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A spring is 14cm long. Three masses are hung from it and then it is measured again. Now it is 19.5cm long. What force did the th

lukranit [14]

Answer:

Gravity

Explanation:

The answer is gravity because when the 3 masses were hung from the spring, gravity pulled the spring towards the ground.

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3 years ago

Mercury is 0.39 AU from the sun. What is its distance from the sun in kilometers?

qaws [65]

Answer:

0.39AU = 58344000 [km] or 58.500.000 [km]

Explanation:

This is a problem that consists simply in converting units:

AU = astronomic unit

$1 [AU] = 1.496*10^{8} [km]\\0.39 [AU] = x\\\\Therefore\\x = \frac{0.39*1.496*10^{8} }{1} \\x = 58344000[km]$

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3 years ago

If an R = 1-kΩ resistor, a C = 1-μF capacitor, and an L = 0.2-H inductor are connected in series with a V = 150 sin (377t) volts

fgiga [73]

Answer

given,

R = 1-kΩ = 1000 Ω

C = 1-μF

L = 0.2-H

V = V_max sin( ω t)

comparing

V = 150 sin ( 377 t)

ω = 377

$\chi_c = \dfrac{1}{\omega C}$

$\chi_c = \dfrac{1}{377 \times 1 \times 10^{-6}}$

$\chi_c = 2652.5\Omega$

$\chi_L =377 \times 0.2$

$\chi_L =75.4\ \Omega$

Impedance,

$Z = \sqrt{R^2+(\chi_L-\chi_c)^2}$

$Z = \sqrt{1000^2+(75.4 -2652.5)^2}$

Z = 2764.3 Ω

now,

V_{max} = 150 V

$I_{max} = \dfrac{V}{Z}$

$I_{max} = \dfrac{150}{2764.3}$

$I_{max} = 0.0543$

$I_{max} = 54.3\ mA$

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3 years ago

Convert 10 kilometers to feet.

ehidna [41]

Answer:

32,808.4 feet.

Explanation:

1 kilometer is equal to 3,280.84 feet.

3,280.84 feet × 10 feet = 32,808.4 feet

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4 years ago

A large truck collides head-on with a small compact car. During the collision: (A) the truck exerts a greater amount of force on

Yakvenalex [24]

Answer:

A The truck exerts greater force

Explanation:

During collision the truck exerts greater force due to its much larger mass coupled with the speed than the car exerts on it thereby damaging the car more

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3 years ago

When the amplitudes of waves are equal, which frequency waves have the most energy?​

When the amplitudes of waves are equal, which frequency waves have the most energy?