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3 years ago

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A child in a swing oscillates with a certain frequency of oscillation (the child is sitting still. another child sits next to th

e first child. how does the swing’s frequency of oscillation change when the second child sits next to the first child?

1 answer:

Tresset [83]3 years ago

8 0

,f-u.c-k .y-e,a --m-e,n

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Distance in a minute=<span>0.5 times 30=15 meters
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3 years ago

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andreev551 [17]

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A comet fragment of mass 1.96 × 1013 kg is moving at 6.50 × 104 m/s when it crashes into Callisto, a moon of Jupiter. The mass o

Andrej [43]

Answer:

Recoil speed, $1.17\times 10^{-5}\ m/s$

Explanation:

Given that,

Mass of the comet fragment, $m_1=1.96\times 10^{13}\ kg$

Speed of the comet fragment, $v_1=6.5\times 10^4\ m/s$

Mass of Callisto, $m_2=1.08\times 10^{23}\ kg$

The collision is completely inelastic. Assuming for this calculation that Callisto's initial momentum is zero. So,

$m_1v_1=(m_2+m_2)V$

V is recoil speed of Callisto immediately after the collision.

$V=\dfrac{m_1v_1}{(m_2+m_2)}\\\\V=\dfrac{1.96\times 10^{13}\times 6.5\times 10^4}{(1.96\times 10^{13}+1.08\times 10^{23})}\\\\V=1.17\times 10^{-5}\ m/s$

So, the recoil speed of Callisto immediately after the collision is $1.17\times 10^{-5}\ m/s$

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What is the mass of a tennis ball traveling with a velocity of 3 m/s and a momentum of

ELEN [110]

Answer:

Explanation:

P = mv

m = P/v

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