3 years ago

Vector a cross b whole square

Physics

1 answer:

skad [1K]3 years ago

4 0

Answer:

Kriss go Brrrrrrrrrrr

Explanation:

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A physics teacher performing an outdoor demonstration suddenly falls from rest off a high cliff and simultaneously shouts help.

GrogVix [38]

Answer:

$H = 532 m$

Explanation:

When teacher falls into the cliff then she shout for Help at the same time

so here we know that sound will go down and reflect back up

so here in 3 s distance traveled by the sound

$d = vt$

$d = 340 \times 3$

$d = 1020 m$

now in the same time the distance that teacher will fall down is given as

$d_1 = \frac{1}{2}gt^2$

$d_1 = \frac{1}{2}(9.81)(3^2)$

$d_1 = 44.1 m$

now total distance traveled by teacher and sound in 3 s

$d_{total} = d + d_1$

$d_{total} = 1020 + 44.1$

this total distance must be equal to twice the height of the cliff

$2H = 1064.1 m$

$H = 532 m$

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3 years ago

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Electromagnetism consists of what two processes?

kherson [118]

Answer: it’s A and B

Explanation: everyone else on this post was giving you the wrong answer.

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Which use of iron is due to its chemical properties?

AfilCa [17]

Colored sparks and rusting.

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Which is not an example of a scalar? a. 2t/s b. 3kg c. 6.2m north d. -100c

xxMikexx [17]

C because I’m a teacher

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Can anybody write a short poem about friction

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Answer:

you will be the clouds
and I will be the sky.
you will be the ocean
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you will be the trees
and I will be the wind.

whatever we are, you and I will always collide.

There you go! Let me know if it helped.
:)

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2 years ago

Vector a cross b whole square​

Vector a cross b whole square