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Morgarella [4.7K]
3 years ago
9

Which of the following statements is false?

Physics
1 answer:
juin [17]3 years ago
4 0
Answer: the last 1
Explanation: because it is
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Sound wave frequency difference
motikmotik
Are u trying to ask what the difference between a sound wave and a frequency is?
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3 years ago
A block is projected up a frictionless inclined plane with initial speed v0 = 1.72 m/s. The angle of incline is θ = 44.8°. (a) H
Snowcat [4.5K]

Explanation:

Given

initial velocity(v_0)=1.72 m/s

\theta =44.8{\circ}

using v^2-u^2=2as

Where v=final velocity (Here v=0)

u=initial velocity(1.72 m/s)

a=acceleration   (gsin\theta )

s=distance traveled

0-(1.72)^2=2(-9.81\times sin(44.8))s

s=0.214 m

(b)time taken to travel 0.214 m

v=u+at

0=1.72-gsin(44.8)\times t

t=\frac{1.72}{9.8\times sin(44.8)}

t=0.249 s

(c)Speed of the block at bottom

v^2-u^2=2as

Here u=0 as it started coming downward

v^2=2\times gsin(44.8)\times 0.214

v=\sqrt{2.985}

v=1.72 m/s

3 0
4 years ago
Which wave behavior allows people to hear around corners, even without surrounding walls?
blsea [12.9K]
I believe it would be b !
8 0
3 years ago
What are advantages and disadvantages of breakwater
Harman [31]
<span>Advantages:
- Easy to repair
- Protect the shore
- Function after minor damage
- Don't disturb the shoreline

Disadvantages:
- Expensive
- Ugly
- Ruin the surfing tourism industry
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- Don't absorb all energy due to gaps between the breakwater</span><span>
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What substances existed as solid flakes within the innermost regions (within about the inner 0.3 AU) of the solar system before
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Explanation: No substance exist as solid flakes within the innermost regions of the solar system before planets began to form. But substances that were found within the inner 0.3 AU of the solar system before planets began to form includes; rocks, metals, hydrogen compounds, hydrogen, and helium, all in gaseous form.

4 0
3 years ago
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