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MatroZZZ [7]
3 years ago
9

A kid is swinging on a swing at the park with an angle of 25°, is this considered simple

Physics
1 answer:
Varvara68 [4.7K]3 years ago
6 0
This is something I have no idea
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If the wavelength of a wave of light is 4.57x10^-9 m what is the frequency
alexandr402 [8]

Answer:

6.5646\times 10^{16}~ \text{Hz}

Explanation:

\text{Frequency,}~ f= \dfrac{c}{\lambda} = \dfrac{3\times 10^8 }{4.57 \times 10^{-9}} = 6.5646\times 10^{16}~ \text{Hz}

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What would MOST LIKELY happen if the amount of incoming solar energy decreased without a change in the amount of reflection or o
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3 years ago
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What causes charges to move in a circuit?
ipn [44]
A )voltage
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3 years ago
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A 706-N man stands in the middle of a frozen pond of radius 8.0 m. He is unable to get to the other side because of a lack of fr
mariarad [96]

Answer:

t=62 s

Explanation:

Applying the conservation of linear momentum formula:

(m1+m2)*v_{o1}=m1*v_{f1}+m2*v_{f2}

the initial velocity is zero, we can calculate the man's mass using the gravitational force formula:

F_g=m.g\\\\m=\frac{706N}{9.81}\\\\m=72.0kg

now:

m*v_{f1}=-m_b*v_b\\\\V_{f1}=-\frac{m_b*v_b}{m}\\\\V_{f1}=-\frac{1.2kg*8.0m/s}{72.0kg}\\\\V_f=-0.13m/s

That is 0.13m/s due south.

because there is no friction, the man will maintain a constant velocity, so:

d=v*t\\t=\frac{d}{v}\\t=\frac{8m}{0.13m/s}\\\\t=62s

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3 years ago
you are driving in the left lane on a multi-lane expressway, and are moving a bit faster than other traffic. a speeding car come
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(c) would be the Answer because (a) and (b) are Dangerous and note the use of language for (c) and how it says safely. It means that (c) is your best bet.
Do your best!<span />
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