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LUCKY_DIMON [66]
3 years ago
14

What can happen to the atomic particles when u rub two objects together ​

Physics
1 answer:
MAVERICK [17]3 years ago
3 0
Look it up on google it has the answer
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2. A carpenter tosses a shingle off a 9.4 m high roof, giving it an initial horizontal
Aleksandr [31]

Sounds like the shingle/ball is thrown from the roof horizontally, so that the distance it travels <em>x</em> after time <em>t</em> horizontally is

<em>x</em> = (7.2 m/s) <em>t</em>

The object's height <em>y</em> at time <em>t</em> is

<em>y</em> = 9.4 m - 1/2 <em>gt</em>²

where <em>g</em> = 9.80 m/s² is the magnitude of the acceleration due to gravity, and its vertical velocity is

<em>v</em> = -<em>gt</em>

(a) The object hits the ground when <em>y</em> = 0:

0 = 9.4 m - 1/2 <em>gt</em>²

<em>t</em>² = 2 * (9.4 m) / (9.80 m/s²)

<em>t</em> ≈ 1.92 s

at which time the object's vertical velocity is

<em>v</em> = -<em>g</em> (1.92 s) = -18.8 m/s ≈ -19 m/s

(b) See part (a); it takes the object about 1.9 s to reach the ground.

(c) The object travels a horizontal distance of

<em>x</em> = (7.2 m/s) * (1.92 s) ≈ 13.8 m ≈ 14 m

8 0
2 years ago
Q1. Which statement is correct
marishachu [46]

Answer:

C

D

Explanation:

7 0
2 years ago
A 50.0-g Super Ball traveling at 25.0 m/s bounces off a brick wall and rebounds at 22.0 m/s. A
Setler [38]

Explanation:

Average acceleration is change in velocity over time.

a = Δv / Δt

a = (22.0 m/s − (-25.0 m/s)) / 0.00350 s

a = 13,400 m/s²

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2 years ago
Water waves of wavelength 4m are produced by two generators S1 and S2.
Vaselesa [24]
A is not the correct answer because the amplitude and oscillation and there is 1/2 A in oscillation
8 0
1 year ago
What is the Orbital Notation for Radon
balu736 [363]

I uploaded the answer to a file hosting. Here's link:

tinyurl.com/wpazsebu

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3 years ago
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