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3 years ago

which words in the sentence make up the prepositional phrase? I put my new purple tennis shoes in the closet and shut the door.

Physics

1 answer:

Tom [10]3 years ago

3 0

In is the preposition
So "in the closet" is the prepositional pharse
(could you let me know if im right?)

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Answer:

Abbie’s acceleration is (1/2) Zak’s acceleration.

Explanation

1. Data:

a) ω = constant

b) Abbie: r₁ = 1 m

c) Zak: r₂ = 2 m

d) Ac₁ = ? Ac₂

2. Formulae

Ac = ω² r

3. Solution:

a) Abbie:

Ac₁ = ω² r₁ = ω² (1m)

b) Zack:

Ac₂ = ω² r₂ = ω² (2m)

c) Divide Ac₁ / Ac₂

Ac₁ / Ac₂ = ω² (1m) / [ω² (2m) ] = 1/2

⇒ Ac₁ = (1/2) Ac₂ = Ac₂ / 2 = 0.5 Ac₂

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2 years ago

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Answer with Explanation:

We are given that

$r=0.053 nm=0.053\times 10^{-9} m$

$1 nm=10^{-9} m$

Charge on proton,q= $1.6\times 10^{-19} C$

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We know that the electric potential

$V=\frac{kq}{r}$

Where $k=9\times 10^9$

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$V=27.17 V$

B.Potential energy of electron,U= $\frac{kq_e q_p}{r}$

Where

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$q_p=q=1.6\times 10^{-19} C$ =Charge on proton

Using the formula

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Then for $\Delta$ DAC:

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Now for the $\Delta$ BAC:

$tan\theta = \frac{d + h}{x}$

⇒ $\theta = tan^{-1} \frac{d + h}{x}$

Now, differentiating w.r.t x:

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After solving the above eqn, we get

x = $\sqrt{\frac{d}{d + h}}$

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