__________ are seismic waves that pass through the earth's interior, spreading out from the focus in all directions.

1 answer:

7 0

In geology, <span>seismic waves that pass through the earth's interior are called body waves, as opposed to surface waves, which travel near the earth's surface. Body waves can be of two types: P-waves (primary), the fastest, and S-waves (secondary), which are slower.</span>

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A hydrogen atom is in its ground state when its orbital electron:

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It is in its ground state when its orbital electron is at its lowest energy amount.

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the andromeda galaxy is approaching our galaxy with a radial velocity of 120 km/s. given the galaxies present separation of 800

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2 years ago

Suppose it takes a constant force a time of 6.0 seconds to slow a 2500 kg truck

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Answer:

$3.3\cdot 10^3\:\mathrm{N}$

Explanation:

Impulse on an object is given by $\mathrm{[impulse]}=F\Delta t$ .

However, it's also given as change in momentum (impulse-momentum theorem).

Therefore, we can set the change in momentum equal to the former formula for impulse:

$\Delta p=F\Delta t$ .

Momentum is given by $p=mv$ . Because the truck's mass is maintained, only it's velocity is changing. Since the truck is being slowed from 26.0 m/s to 18.0 m/s, it's change in velocity is 8.0 m/s. Therefore, it's change in momentum is: