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Neko [114]
2 years ago
7

2. Xét một điểm nằm trên vành ngoài của lốp xe máy cách trục bánh xe môtô 25cm.

Physics
1 answer:
Rashid [163]2 years ago
6 0

Answer:

b. Cho biết tốc độ của xe là 4m/s. Hãy tính tốc độ góc của điểm trên vành ngoài bánh xe.

Explanation:

#CarryOnLearning

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2500
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0.8

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3 years ago
Use the drop-down menus to identify the parts of the
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Label A: Battery, Label B: Light or Bulb, Label C: Switch

Explanation:

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3 years ago
Which of the following is a problem that some people blame on technology?
seropon [69]
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7 0
3 years ago
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A main goal of most environmental scientists is to achieve _________________________.
sergiy2304 [10]

Answer:

The answer is biodiversity

Explanation:

4 0
3 years ago
Lloyd is standing on a scaffolding 12 meters above the ground to clean the windows of a tall building. His bucket, which has a m
Sever21 [200]

Answer:

U₂ = 20 J

KE₂ = 40 J

v= 12.64 m/s

Explanation:  

Given that

H= 12 m

m = 0.5 kg

h= 4 m

The potential energy at position 1

U₁ = m g H

U₁ = 0.5 x 10 x 12        ( take g= 10 m/s²)

U₁ = 60 J

The potential energy at position 2

U₂ = m g h

U ₂= 0.5 x 10 x 4        ( take g= 10 m/s²)

U₂ = 20 J

The kinetic energy at position 1

KE= 0

The kinetic energy at position 2

KE= 1/2 m V²

From energy conservation

U₁+KE₁=U₂+KE₂

By putting the values

60 - 20 = KE₂

KE₂ = 40 J

lets take final velocity is v m/s

KE₂= 1/2 m v²

By putting the values

40 = 1/2 x 0.5 x v²

160 = v²

v= 12.64 m/s

3 0
3 years ago
Read 2 more answers
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