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The disk shown below rotates through the angle Δθ1 in a time Δt1 at a constant angular speed ω1. The disk then experiences a constant angular acceleration α2 for a time Δt2. Finally the disk rotates through the angle Δθ3 in a time Δt3 at a constant angular speed ω3.

Δθ1 = 0.0100 rad
Δθ3 = 0.0300 rad
Δt1 = Δt2 = Δt3 = 2.00 s
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Determine the following:

1
Angular velocity during the time Δt1
2
Angular velocity during the time Δt3
3
Angular acceleration during the time Δt2
4
Angular distance traveled by the disk during the time Δt2

A particle is traveling in a circular orbit and its angular position as a function of time is given by

θ(t) = (3.00 rad/s2)t2 + (2.00 rad/s)t + 1.00 rad

Determine the following:

5
The angular position at t = 2.00 s
6
The angular speed at t = 2.00 s
7
The angular acceleration at t = 2.00 s

R = 0.200 m
r = 1.00 cm
h = 2.00 m
M1 = 10.0 kg
M2 = 0.100 kg
g = 9.80 m/s2
t = 10.0 s
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Cord 1 is wrapped around the axle and attached to M1. Cord 2 is wrapped around the wheel and attached to M2. When the system is released, M1 falls and unwraps cord 1; M2 is lifted and cord 2 is wound on the wheel. M1 falls the distance h in a time t.

Determine the following:

8
The linear acceleration of M1
9
The angular acceleration of the wheel and axle
10
The linear acceleration of M2
11
The linear speed of M1 after a time of 5.00 s
12
The angular speed of the wheel and axle after a time of 5.00 s
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The linear speed of M2 after a time of 5.00 s
14
The distance M1 falls during the first 5.00 s of travel
15
The number of revolutions made by the wheel and axle during the first 5.00 s of travel
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The distance M2 is lifted during the first 5.00 s of travel

Consider an object initially traveling in a circle of radius ro with a speed of vo. Determine expressions for the following in terms of ro and vo.

17
Central acceleration of the object when it is traveling with a speed vo in a circle of radius ro
18
Central acceleration of the object if the radius decreases by a factor of two and the speed stays the same
19
Central acceleration of the object if the speed doubles and the radius stays the same
20
Central acceleration of the object if the speed decreases by a factor of two and the radius doubles

An object of mass M is tied to a cord and swings in a vertical circle of radius r. In general, the speed of the object will vary, and we know its value at the five labeled positions.

Given:

r = 1.00 m
M = 0.500 kg
θ = 30.0°
γ = 60.0°
g = 9.80 m/s2

 

v1 = 6.00 m/s
v2 = 5.50 m/s
v3 = 5.00 m/s
v4 = 4.50 m/s
v5 = 4.00 m/s
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Based on this information determine the following:

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Tension in the cord for position 1
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Tension in the cord for position 2
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Tension in the cord for position 3
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Tension in the cord for position 4
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Tension in the cord for position 5

Consider three planets (earth, x and y) each with an artificial satellite of mass ms orbiting at a radius r.

We know the following:

ge(Re) = acceleration due to gravity on the earth's surface
Re= radius of earth
Me= mass of earth
ge(r) = acceleration due to gravity experienced by the satellite in orbit about the earth.
ve(r) = orbital speed of the satellite in orbit about the earth
Te(r) = period of the satellite in orbit about the earth.
Mx= 2Me Mass of plant x is twice that of earth
My= Me/3 Mass of planet y is one third that of earth
Rx= 2Re The radius of planet x is twice that of earth
gy(Ry) = 2ge(Re) The acceleration due to gravity on planet y is twice that on earth

Determine the following:

26
Mass of each or the respective satellites on planets x and y
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Acceleration due to gravity on planet x in terms of ge(Re)
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Weight of each of the respective satellites on planets x and y in terms of ms and ge(Re)
29
Central acceleration of each of the satellites in their respective orbits around planets x and y in terms of ge(r)
30
Acceleration due to gravity experienced by each of the satellites in their respective orbits around planet x and y in terms of ge(r)
31
Force of attraction each of the respective satellites experiences as it orbits planet x and y in terms of ms and g(r)
32
Radius of planet y in terms of Re
33
Orbital speed of each of the respective satellites about the planets x and y in terms of ve(r)
34
Period of each of the respective satellites about the planets x and y in terms of Te(r)







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