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Alisiya [41]
4 years ago
5

Physics question, please help?

Physics
1 answer:
Ludmilka [50]4 years ago
6 0

0.4823 m/s

The initial velocity u1 of the ball=0

From the law of conservation of linear momentum.

m1u1+m2u2=m1v1+m2v2

(160×0)+(170×u1)=(160×0.3)+(170×0.2)

u1=0.4823m/s

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Answer:

14.14 m/s

Explanation:

As total mechanical energy is conserved, if the potential energy is the same at Chad's position no matter if the ball is travelling up or down, then its kinetic energy, and speed, is also the same too.

Therefore, the ball would have a speed of 10m/s when it's passing Chad the 1st time. Since we know that Chad is at 5m high from the release point, we can use the following equation of motion:

v^2 - v_0^2 = 2g\Delta s

where v = 10 m/s is the velocity of the ball when it passes Chad, v_0 is the initial velocity of the ball when it releases, g = 10 m/s2 is the deceleration of the can, and \Delta s = 5 m is the distance traveled between Nicole and Chad. We can solve for v0:

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4 0
3 years ago
What patterns did you notice in the organism's embryonic development?
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3 years ago
If the Hubble Space Telescope is 598 m above the surface of the Earth and is traveling at 7.56 x 103 m/s, how long does it take
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Answer:

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Explanation:

The parameter we are looking for is called the Orbital period of the Hubble Space Telescope.

It is given as:

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r = radius of the earth + distance of HST from earth

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Therefore, T will be:

T = \sqrt{\frac{4*\pi^2 * 6380598^3 }{6.67408 * 10^{-11} * 5.98 * 10^{24}}}

T = 5069.04 secs

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7 0
3 years ago
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You can enter compound units that are combinations of other units that are multiplied together.Torque can be calculated by multi
Paraphin [41]

Answer:

3.0 x 10¹ Nm

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NemiM [27]

Answer:

A I Think

Explanation:

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