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Sophie [7]
3 years ago
11

An astronaut and his space suit have a combined mass of 157 kg The astronaut is using a soke

Physics
2 answers:
alex41 [277]3 years ago
6 0

Answer:

bipartisanship Corp voted for it and it was a deal that firs an u

mrs_skeptik [129]3 years ago
6 0

Answer:

(c

Explanation:

just took the test

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An egg is cracked/broken. Is this egg experiencing a Physical or Chemical change? (Hint: is it still an egg?)
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The asnwer is the first choice! and lol yes its still luv ;)
4 0
3 years ago
According to the theory of plate tectonics, the lithosphere is separated into sections that are called tectonic plates. These pl
loris [4]

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Transform :j

Explanation:

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3 years ago
A rocket accelerates by burning its onboard fuel, so its mass decreases with time. Suppose the initial mass of the rocket at lif
Serggg [28]

Answer:

Height of the rocket be one minute after liftoff is 40.1382 km.

Explanation:

v(t)=-gt-v_e\times \ln \frac{m-rt}{m}

v = velocity of rocket at time t

g = Acceleration due to gravity =9.8 m/s^2

v_e = Constant velocity relative to the rocket = 2,900m/s.

m = Initial mass of the rocket at liftoff = 29000 kg

r = Rate at which fuel is consumed = 170 kg/s

Velocity of the rocket after 1 minute of the liftoff =v

t = 1 minute = 60 seconds'

Substituting all the given values in in the given equation:

v(60)=-9.8 m/s^2\times 60 s-2,900m/s\times \ln (\frac{29,000 kg-170 kg/s\times 60 s}{2,9000 kg})

v(60) = 668.97 m/s

Height of the rocket = h

Velocity=\frac{Displacement}{time}

668.97 m/s=\frac{h}{60 s}

h=668.97 m/s\times 60 s=40,138.2 m = 40.1382 km

Height of the rocket be one minute after liftoff is 40.1382 km.

4 0
3 years ago
What is the frequency if a wave that pases a given pount 22 times in 2 seconds
34kurt

The answer is B. 11 Hz

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Crystalline salts such as cesium bromide form _____ bonds with _______.
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Ionic bonds with electrostatic attractions
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