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Lelu [443]
2 years ago
6

Using water displacement to find volume of an irregular object: A submerged object will displace a volume of water that is equal

to the volume of the object. 1mL of water = 1 cubic cm of water. If this rock has a mass of 13.95g, what is the density of the rock?
Physics
1 answer:
Murljashka [212]2 years ago
3 0

Answer: ill answer in a little figurining it out so i dont lose it

Explanation:

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How far will a bird have traveled in 13 seconds if it maintains a speed of 31 m/s
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Distance = Speed × time

Distance = 31m/s × 13 seconds = 403m

8 0
2 years ago
Which way will the people on the right move? Why? Plz answer
Scrat [10]
Probably to the right because the force on the left is greater and will therefore overpower the 2N force and push to the right
3 0
2 years ago
An object 20cm high is placed at a distance of 100 cm from a plane mirror. The height of the image will be.
Mandarinka [93]
B) 20 cm


The height and distance will be the same. Only the image will be laterally inverted.
6 0
2 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
If you want points for your account just answer yes
jeka94

Answer:

Lol, yes

Explanation:

5 0
3 years ago
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