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aliya0001 [1]
3 years ago
12

A block of stone measures 15cm x 15cm x 20 cm.What is the total surface area of the stone

Physics
1 answer:
Sidana [21]3 years ago
7 0

This should help look at the pictures?

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After your school's team wins the regional championship, students go to the dorm roof and start setting off fireworks rockets. T
oksian1 [2.3K]

Answer:

required distance is 233.35 m

Explanation:

Given the data in the question;

Sound intensity I = 1.62 × 10⁻⁶ W/m²

distance r = 165 m

at what distance from the explosion is the sound intensity half this value?

we know that;

Sound intensity I is proportional to 1/(distance)²

i.e

I ∝ 1/r²

Now, let r² be the distance where sound intensity is half, i.e I₂ = I₁/2

Hence,

I₂/I₁ = r₁²/r₂²

1/2 = (165)²/ r₂²

r₂² = 2 × (165)²

r₂² = 2 × 27225

r₂² = 54450

r₂ = √54450

r₂ = 233.35 m

Therefore, required distance is 233.35 m

6 0
3 years ago
In a transpiration experiment, the air bubble has an initial volume of 4.33 mL, and an initial pressure of 101.9 kPa. What will
ira [324]

Answer:

Explanation:is in the picture below

8 0
2 years ago
How much force would be needed to cause a 4.6kg object to accelerate at 9.2m/s/s? *
poizon [28]

Answer:

<h2>42.32 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 4.6 × 9.2

We have the final answer as

<h3>42.32 N</h3>

Hope this helps you

5 0
2 years ago
What effect did the Cold War have on the American space program?
chubhunter [2.5K]
The answer is D.Competition with the Soviet Union spurred American space missions.

<span>♡♡Hope I helped!!! :)♡♡
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3 0
3 years ago
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Can someone help please I’ll mark brainless
morpeh [17]

Answer:

Synthesis Reaction

Explanation:

6 0
2 years ago
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