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Umnica [9.8K]
3 years ago
8

Change the following as indicated in the brackets. 8m (km,cm)​

Physics
2 answers:
allsm [11]3 years ago
7 0

Answer:

1000m=1km

so, 8m=8/1000 = 0.008km

1m=100cm

so, 8m=8×100=800

Jet001 [13]3 years ago
5 0

metres to kilometres = 1/1000

8 m ⇒ 0.008 km

metres to centimetres = × 100

8 m ⇒ 800 cm

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Answer:

<em> B.0</em>

Explanation:

Change in momentum: This is defined as the product of mass and change in velocity of a body. or it can be defined as the product of force and time of a body. The fundamental unit of change in momentum is kg.m/s

Change in momentum = M(V-U)......................... Equation 1

where M = mass of the ball, V = final velocity of the ball, U = initial velocity of the ball.

Let: M = m kg and V = U = v m/s

Substituting these values into equation 1

Change in momentum = m(v-v)

Change in momentum = m(0)

Change in momentum = 0 kg.m/s

<em>Therefore the momentum of the ball has not changed.</em>

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4 0
3 years ago
What type of lever has the fulcrum between the resistance arm and the effort arm?
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Vlad1618 [11]

Answer:

0.0675 seconds

Explanation:

From the question,

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make t the subject of the equation

t = m(v-u)/F................... Equation 2

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Substitute these value into equation 2

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2 years ago
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6 0
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