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Schach [20]
3 years ago
10

What is its average acceleration in this time interval?

Physics
1 answer:
hodyreva [135]3 years ago
5 0

Answer:

Unlike acceleration, the average acceleration is calculated for a given interval. Here, Δ v is the change in velocity and Δ t is the total time over which the velocity is changing. If the velocity of a marble increases from 0 to 60 cm/s in 3 seconds, its average acceleration would be 20 .

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A race car was is moving at a constant speed of 35 m/s. A security car was
Andrej [43]

Answer:

Final speed of security car v = 65 m/s

Explanation:

Given:

Speed of race car u1 = 35m/s

Speed of security car u2 = 5 m/s

Acceleration = 5 m/s²

Find:

Final speed of security car v

Computation:

Assume, they chase S meter

So

S = u1t + [1/2]at²

S = 35t

S = u2t + [1/2]at²

so,

35t = 5t +  [1/2](5)t²

t = 12 s

So

v = u + at

v = 5 + 5(12)

Final speed of security car v = 65 m/s

7 0
3 years ago
Two containers hold equal masses of nitrogen gas at equal temperatures. You supply 10 J of heat to container A while not allowin
telo118 [61]

Answer:

TA is greater than TB

T_{A} > T_{B}

Explanation:

Specific heat at constant pressure C_{p} is greater than specific heat at constant volume C_{v}.Therefore for given amount of supplied heat,increase in temperature at constant volume is greater than increase in temperature at constant pressure

Hence

TA is greater than TB

T_{A} > T_{B}

5 0
4 years ago
What does 'payback time' mean?
dimaraw [331]

Payback time is when someone has to take the consequences of what they have done in the past. You can use this expression to talk about good or bad consequences.

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Answer:

Explanation:

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8 0
3 years ago
Carbon tetrachloride (CCl4) is ionic or convalent
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