The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about...
The outstretched hands and arms of a figure skater preparing for
a spin can be considered a slender rod pivoting about an axis
through its center . When his hands and arms are brought in and
wrapped around his body to execute the spin, the hands and arms can
be considered a thin-walled hollow cylinder. His hands and arms
have a combined mass 9.0 kg. When outstretched, they span 1.7 m;
when wrapped, they form a cylinder of radius 26 cm. The moment of
inertia about the rotation axis of the remainder of his body is
constant and equal to 0.40 kg * m2.
If his original angular speed is 0.30 rev/s, what is his final
angular speed?
= ___ rev/s
Homework Answers
Add Answer to:
The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about...
The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about a...
The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center. When the skater's hands and arms are brought in and wrapped around his body to execute the spin, the hands and arms can be considered a thin-walled hollow cylinder. His hands and arms have a combined mass of 8.00kg . When outstretched, they span 1.80m ; when wrapped, they form a cylinder of radius...
The outstretched hands and arms of a figure skater preparing for a spin can be considered...
The outstretched hands and arms of a figure skater preparing for
a spin can be considered a slender rod pivoting about an axis
through its center ( Ibar = 1 12 mℓ2 where ℓ is the length of the
bar ). When the skater's hands and arms are brought in and wrapped
around their body to execute the spin, the hands and arms can be
considered a thin-walled hollow cylinder. The hands and arms have a
combined mass 10 kg....
The outstretched hands and arms of a figure skater preparing for a spin can be considered...
The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center (Figure 1). When his hands and arms are brought in and wrapped around his body to execute the spin, the hands and arms can be considered a thin-walled hollow cylinder. His hands and arms have a combined mass 8.0 kg . When outstretched, they span 1.9 m ; when wrapped, they form a cylinder...
Part A The outstretched hands and arms of a figure skater preparing for a spin can...
Part A The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center. (See the figure below (Figure 1).) When the skater's hands and arms are brought in and wrapped around his body to execute the spin, the hands and arms can be considered a thin-walled hollow cylinder. His hands and arms have a combined mass of 8.50 kg. When outstretched, they span 1.80 m;...
Please solve step by step. Consider the two (combined mass=8.0kg, total width=1.8m) hands and arms of...
Please solve step by step. Consider the two (combined mass=8.0kg, total width=1.8m) hands and arms of a skater preparing to spin as one slender rod pivoting through its center, and when wrapped as a thin-walled hollow cylinder of radius 25cm. The moment of inertia of THE REST of his body is 0.40kg.m2. His initial angular speed is 0.40rev/s, what is his final angular speed?
The 160 lb ice skater with arms extended horizontally spins about a vertical axis with a...
The 160 lb ice skater with arms extended horizontally spins about a vertical axis with a rotational speed of 1 rev/sec. Estimate his rotational speed if he fully retracts his arms, bringing his hands very close to the centerline of his body. As a reasonable approximation, model the extended arms as uniform slender rods, each of which is 27 in. long and weighs 13 lb. Model the torso as a solid 134-lb cylinder 13 in. in diameter. Treat the man...
A skater has a moment of inertia of 100 kg . m^2 when his arms are...
A skater has a moment of inertia of 100 kg . m^2 when his arms are outstretched and a moment of inertia of 75 kg . m^2 when his arms are tucked in dose to his chest. If he starts to spin at an angular speed of 2.0 rps (revolutions per second) with his arms outstretched, what will his angular speed be when they are tucked in?
A figure skater spins with her arms outstretches at a rate of 10 rev/s. When she...
A figure skater spins with her arms outstretches at a rate of 10 rev/s. When she pulls her arms closer to her body, her moment of inertial about the spin axis decreased by 10%, what is the skaters new rotational rate in rev/sec?
A uniform rod rotates in a horizontal plane about a vertical axis through one end. The...
A uniform rod rotates in a horizontal plane about a vertical
axis through one end. The rod is 12.00 m long, weighs
20.00 N, and rotates at 350 rev/min clockwise when seen
from above. Calculate its rotational inertia about the axis of
rotation.
Tries 0/5
Calculate the angular momentum of the rod about that axis.
A man stands at the center of a platform that rotates without
friction with an angular speed of 1.2 rev/s. His arms are
outstretched, and...
You will estimate how much slower an ice skater would spin, if a can of soda...
You will estimate how much slower an ice skater would spin, if a can of soda dropped into her hand while she was spinning. You may model her body as a vertical cylinder of radius 20 cm and mass of 50 kg, spinning about a vertical axis. Assume that she's initally spinning 10 times per second, so that initially wi=20 (pi)s-1. Suddenly she is handed the soda can, which is small enough that we can model it as a point-like...
The outstretched hands and arms of a figure skater preparing for
a spin can be considered a slender rod pivoting about an axis
through its center ( Ibar = 1 12 mℓ2 where ℓ is the length of the
bar ). When the skater's hands and arms are brought in and wrapped
around their body to execute the spin, the hands and arms can be
considered a thin-walled hollow cylinder. The hands and arms have a
combined mass 10 kg....
Part A The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center. (See the figure below (Figure 1).) When the skater's hands and arms are brought in and wrapped around his body to execute the spin, the hands and arms can be considered a thin-walled hollow cylinder. His hands and arms have a combined mass of 8.50 kg. When outstretched, they span 1.80 m;...
A skater has a moment of inertia of 100 kg . m^2 when his arms are outstretched and a moment of inertia of 75 kg . m^2 when his arms are tucked in dose to his chest. If he starts to spin at an angular speed of 2.0 rps (revolutions per second) with his arms outstretched, what will his angular speed be when they are tucked in?
A figure skater spins with her arms outstretches at a rate of 10 rev/s. When she pulls her arms closer to her body, her moment of inertial about the spin axis decreased by 10%, what is the skaters new rotational rate in rev/sec?
A uniform rod rotates in a horizontal plane about a vertical
axis through one end. The rod is 12.00 m long, weighs
20.00 N, and rotates at 350 rev/min clockwise when seen
from above. Calculate its rotational inertia about the axis of
rotation.
Tries 0/5
Calculate the angular momentum of the rod about that axis.
A man stands at the center of a platform that rotates without
friction with an angular speed of 1.2 rev/s. His arms are
outstretched, and...
Most questions answered within 3 hours.
-
1) There is a 5.0 μC charge at each of 3 corners of a square
(each...
asked 6 seconds from now -
A study of 420,095 cell phone users found that
134 of them developed cancer of the...
asked 3 minutes ago -
2.50 g of NH4Cl is added to 12.9 g of water. Calculate the
molality of the...
asked 6 minutes ago -
Part 1
(a) Calculate the pH at 25°C of a 0.10 M solution of a
weak...
asked 7 minutes ago -
1-Calculate the mass in grams of 2.55 moles of KCl
2- Calculate how many moles are...
asked 35 minutes ago -
Bright Sun, Inc. sold an issue of 30-year $1,000 par value bonds
to the public. The...
asked 30 minutes ago -
Bismuth-210 is beta emitter with a half-life of 5.0 days.
Part A
If a sample contains...
asked 22 minutes ago -
The income statement for the month of June, 2014 of Happy Smiles
Enterprises contains the following...
asked 35 minutes ago -
To be done in java code. 2 words are anagrams if 1 word can be
formed...
asked 33 minutes ago -
Two players take turns at removing 1 to 4 coins from an original
pile of 16...
asked 29 minutes ago -
1. Choose value for p between 0.20 and 0.80. It should have at
least two decimal...
asked 37 minutes ago -
QUESTIONS: 500 words for the question
In defining abnormality, the criteria of “deviance”, “distress”
and “dysfunction”...
asked 38 minutes ago