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dezoksy [38]
3 years ago
8

Please help me↓

Physics
1 answer:
olga2289 [7]3 years ago
3 0

Answer:

unmmm u can say that it is going mt 15s

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You throw a 50.0g blob of clay directly at the wall with an initial velocity of -5.00 m/s i. The clay sticks to the wall, and th
Whitepunk [10]

Answer:0.25 kg-m/s

Explanation:

Given

mass of blob m=50 gm

initial velocity u=-5 m/s\ \hat{i}

time of collision t=20 ms

we know Impulse is equal to change in momentum

initial momentum P_i=mu

P_i=50\times 10^{-3}\times (-5)=-0.25 kg-m/s

Final momentum P_f=50\times 10^{-3}v

P_f=0 as final velocity is zero

Impulse J=P_f-P_i

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5 0
3 years ago
What is the formula for calculating the efficiency of a heat engine?
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Answer:

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How physical science can be truth?
JulsSmile [24]
Because it is physically true day really know that by just knowing it very well
4 0
2 years ago
The first antiparticle, the positron or antielectron, was discovered in 1932. It had been predicted by Paul Dirac in 1928, thoug
Taya2010 [7]

Answer:

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Explanation:

From the conservation of energy principle, we know that total energy of the system must remain conserved. So, the energy or particles before collision must be equal to the energy of photons after collision.

K.E OF electron + Rest Energy of electron + K.E of positron + Rest Energy of positron = 2(Energy of Photon)

where,

K.E OF electron = 3.58 MeV

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K.E OF positron = 3.58 MeV

Energy of Photon = ?

Therefore,

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Energy of Photon = 8.182 MeV/2

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How longitudinal waves are formed
vfiekz [6]

Answer:

forever

Explanation:

6 0
3 years ago
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