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raketka [301]
3 years ago
6

How you could use a graduated cylinder to find the volume of a small rock

Physics
1 answer:
lukranit [14]3 years ago
7 0

Answer:

fill the cylinder with water then put the rock in the water

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The image shows the displacement of a motorboat. The data table shows the magnitudes of the components of each displacement vect
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Rx= 3.5 km

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3 years ago
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In a playground, there is a small merry-go-round of radius 1.20 m and mass 160 kg. Its radius of gyration is 91.0 cm. (Radius of
aksik [14]

Answer:

a) 145.6kgm^2

b) 158.4kg-m^2/s

c) 0.76rads/s

Explanation:

Complete qestion: a) the rotational inertia of the merry-go-round about its axis of rotation 

(b) the magnitude of the angular momentum of the child, while running, about the axis of rotation of the merry-go-round and

(c) the angular speed of the merry-go-round and child after the child has jumped on.

a) From I = MK^2

I = (160Kg)(0.91m)^2

I = 145.6kgm^2

b) The magnitude of the angular momentum is given by:

L= r × p The raduis and momentum are perpendicular.

L = r × mc

L = (1.20m)(44.0kg)(3.0m/s)

L = 158.4kg-m^2/s

c) The total moment of inertia comprises of the merry- go - round and the child. the angular speed is given by:

L = Iw

158.4kgm^2/s = [145kgm^2 + ( 44.0kg)(1.20)^2]

w = 158.6/208.96

w = 0.76rad/s

7 0
2 years ago
I WILL GIVE BRAILYEST!!! What is the mass of an object moving at a velocity of 5 m/s if the momentum of the object is 50 kg•m/s?
lianna [129]

Answer:

a. 250kg I think it's the right answer. hope it helps:)

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2 years ago
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An object releasing energy is evidence of which type of chemical change?
Ray Of Light [21]
Exothermic is the answer to your question
8 0
2 years ago
Use Newton's second law of motion and a free-body diagram to...
timurjin [86]
Using the formula F = m*a. where F is the force, m is the mass and a is the acceleration you can use it for each. As long as there are no other forces towards the body in both cases :
F = m*a
F = 50*3
F = 150 N
7 0
3 years ago
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