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Ugo [173]
3 years ago
10

An iron ball and an aluminum ball of mass 100 g each are heated to the same temperature and then cooled to a temperature of 20°C

. The heat lost by the iron ball is 3.6 kJ. The heat lost by the aluminum ball is 7.2 kJ. What does this imply?
A) The specific heat of iron is greater.
B) The specific heat of aluminum is greater.
C) The iron ball was heated to a higher temperature.
D) The aluminum ball was heated to a higher temperature.
Physics
1 answer:
sertanlavr [38]3 years ago
5 0

Answer:

b

Explanation:

i just answered it and the correct answer is b

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DaniilM [7]

Answer:

\frac{t_1}{t_2} = \frac{sin\theta_1}{sin\theta_2}

Explanation:

The vertical component of the initial velocities are

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v_vt - gt^2/2 = s = 0

t(v_v - gt/2) = 0

v_v - gt/2 = 0

t = 2v_v/g = 2v_0sin\theta/g

So the ratio of the times of the flights is

t_1 / t_2 = \frac{2v_0sin\theta_1/g}{2v_0sin\theta_2/g} = \frac{sin\theta_1}{sin\theta_2}

8 0
3 years ago
N capacitors are connected in parallel to form a "capacitor circuit". The capacitance of first capacitor is C, second one is C/2
liberstina [14]

Answer:

2C

Explanation:

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Using the formula for the sum of the infinite terms of a geometric series, we have:

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Sum = C / (1 - 0.5)

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So the equivalent capacitance of this parallel connection is 2C.

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vesna_86 [32]

Answer:

my bad ion even know what it is i just need sum points

Explanation:

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