4 years ago

Why are cross cutting concepts important??? PLEASE HELPPP

Physics

1 answer:

Advocard [28]4 years ago

6 0

Answer:

it is important because it can help students understand science

Explanation:

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Answer:

North east direction

Explanation:

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3 years ago

For lunch you and your friends decide to stop at the nearest deli and have a sandwich made fresh for you with 0.300 kg of Italia

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Answer:

Part a)

A = 0.0581 m

Part b)

T = 0.37 s

Explanation:

Slice is dropped on the plate from height 0.250 m

so the speed of the slice while it hit the plate is given as

$v = \sqrt{2gh}$

here we know that

$v = \sqrt{2(9.81)(0.250)}$

$v = 2.21 m/s$

now from momentum conservation

$mv = (m + M)v_f$

$m = 0.300 kg$

$M = 0.400 kg$

from the above equation we have

$0.300 (2.21) = (0.300 + 0.400) v_f$

$v_f = 0.95 m/s$

Now the initial mean position while it will not hit the plate is given as

$0.400 (9.81) = 200 x_1$

$x_1 = 0.01962 m$

now when slice is placed on the plate then the new mean position will be given as

$(0.300 + 0.400)9.81 = 200 x_2$

$x_2 = 0.0343 m$

now we know that speed of SHM is given as

$v = \omega\sqrt{A^2 - x^2}$

here we have

$\omega = \sqrt{\frac{k}{m + M}}$

$\omega = \sqrt{\frac{200}{0.300 + 0.400}}$

$\omega = 16.9 rad/s$

$a = x_2 - x_1 = 0.0343 - 0.01962 = 0.0147 m$

now from above formula

$0.95 = 16.9\sqrt{A^2 - 0.0147^2}$

$A = 0.0581 m$

Part b)

Time period of scale is given as

$T = \frac{2\pi}{\omega}$

$T = \frac{2\pi}{16.9}$

$T = 0.37 s$

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3 years ago

Q1) A motor has a rating power of 20 W and motor is used for 10 s. Calculate the

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Energy = Power x Time
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What? Do you have a picture of the problem ?

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One type of gas mixture used in anesthesiology is a 50%/50% mixture (by volume) of nitrous oxide (N2O) and oxygen (O2), which ca

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