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2 years ago

Which of the following is an example if harmonic motion?

Physics

1 answer:

german2 years ago

3 0

Answer:

"A pendulum swinging back and forth" is an example of harmonic motion

X = Xo cos ω t

Explains the back and forth motion of the pendulum

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A car sitting at a red light begins to accelerate at 2.0 m/s2 when the light turns green. It continues with this acceleration un

KonstantinChe [14]

Answer:

$d = 820 m$

Explanation:

here we know that car starts from rest and continue to accelerate till it will reach to maximum speed of 20 m/s

so we will have

$v_f - v_i = at$

$20 - 0 = 2t$

$t = 10 s$

so car will accelerate till t = 10 then it will move with uniform speed

so the distance moved by the car till it accelerates is given as

$d = \frac{1}{2}at^2$

$d = \frac{1}{2}(2)(10^2)$

$d_1 = 100 m$

now it will move with uniform speed for next 36 s

so we have

$d_2 = 20(36) = 720 m$

so total distance moved by the car is given as

$d = d_1 + d_2$

$d = 100 + 720$

$d = 820 m$

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3 years ago

20 POINTS PLZ HELP- Describe how two type of land use within your watershed can influence the water quality in Rivers in your ar

JulsSmile [24]

Answer:

Pollution Sources & Land Use. Imperviousness & Water Quality ... protect streams, rivers, and ground water, land use practices can be implemented ... In built-up areas with pavement and buildings, little rainfall soaks into the soil Ground water flows slowly into streams, usually over a period of months,

Explanation:

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4 years ago

Why isnt geothermal energy used more often

Dafna1 [17]

Risk of return on investment is higher than other forms of energy generation.

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4 years ago

What is a small body that follows a highly elliptical orbit around the sun

melomori [17]

A Planet, such as (pluto)

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