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Tpy6a [65]
2 years ago
12

Edwin Hubble discovered that:

Physics
1 answer:
Novosadov [1.4K]2 years ago
3 0

Answer:

galaxies were moving away from us

Explanation:

i got 100% on my quiz

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Calculate the acceleration of a 1000 kg car if the motor provides a small thrust of 1000 N and the static and dynamic friction c
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Explanation :

It is given that,

Mass of the car, m = 1000 kg              

Force applied by the motor, F_A=1000\ N

The static and dynamic friction coefficient is, \mu=0.5

Let a is the acceleration of the car. Since, the car is in motion, the coefficient of sliding friction can be used. At equilibrium,

F_A-\mu mg=ma

\dfrac{F_A-\mu mg}{m}=a

a=\dfrac{1000-0.5(1000)(9.81)}{1000}

a=-3.905\ m/s^2

So, the acceleration of the car is -3.905\ m/s^2. Hence, this is the required solution.

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3 years ago
At 5.0 minutes, the temperature of the water reaches 100 °C. The volume of the water in the urn
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When a space shuttle takes off, the chemical reactions of the fuel give the shuttle the kinetic energy to leave Earth's atmosphe
inessss [21]

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Because its has to use tihs potential energy to overcome the atmosphere so the shuttle will not go back down

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