A 50.0kg mass slater with her arms stretched out giving her a radius of 0.9m is...
Homework Answers
Add Answer to:
A
50.0kg mass slater with her arms stretched out giving her a radius
of 0.9m is...
A 50.0kg mass skater with her arms stretched out giving her a radius of 0.9m is...
A 50.0kg mass skater with her arms stretched out giving her a radius of 0.9m is spinning with an angular velocity of 15 rad/s. If she pulls her arms close to her body her new radius is 0.30m, what is her new angular velocity?
Question 8 (6 points) A 60.0-kg skater is spinning at 0.800 rev/s with her arms and...
Question 8 (6 points) A 60.0-kg skater is spinning at 0.800 rev/s with her arms and legs extended outward. In this position her moment of inertia with respect to the vertical axis about which she is spinning is 6.00 kg•m?. She pulls her arms and legs in close to her body changing her moment of inertia to 2.00 kg•m². What is her final angular velocity in rad/s? a) 8.71 rad/s b) 15.1 rad/s c) 2.40 rad/s d) 0.800 rad/s e)...
1. A solid cylinder has a mass of 5 kg and a radius of 30 cm. A torque of 40 Nm is applied to the cylinder. What will be...
1. A solid cylinder has a mass of 5 kg and a radius of 30 cm. A torque of 40 Nm is applied to the cylinder. What will be its angular acceleration? a) 37.5 rad/s2 b) 59.3 rad/s2 c) 89.0 rad/s2 d) 178 rad/s2 2. When an object is in static equilibrium a) the net force on it is zero b) the net torque on it is zero c) the net force and net torque are zero d) not enough...
Emmy the trapeze artist flies through the air with her arms and legs stretched out, tumbling...
Emmy the trapeze artist flies through the air with her arms and legs stretched out, tumbling head over heels. As she rotates, she pulls her arms and legs close to her chest, as shown in the illustration As Emmy pulls her arms and legs in, how does her rotational inertia change? It increases. It decreases. It remains constant As Emmy pulls her arms and legs in, how does her angular momentum change? It increases It decreases It remains constant As...
4 A ballerina is spinning on one foot with her arms stretched out, when she pulls...
4 A ballerina is spinning on one foot with her arms stretched out, when she pulls her arms in. Will the following quantities increase, decrease or remain unchanged? (Ignore air drag) (i) Her angular speed. Increase (ii) Her moment of inertia. Decrease (iii) Her angular momentum. Increase (iii) Her rotational kinetic energy. Increase. K1 = 1/2 I1ω1 ; K2 = 1/2 I2ω2 . Because I1ω1 = I2ω2 , it follows K2 = (1/2 I1ω1)(I1/I2) = K1(I1/I2) > K1 THE ANSWERS...
An ice skater spins, with her arms and one leg outstretched, and achieves an angular velocity...
An ice skater spins, with her arms and one leg outstretched, and achieves an angular velocity of 2 rad/s. when she pulls in her arms, her moment of inertia decreases to 65% its original value. what is her new angular velocity?
What is the angular momentum of a figure skater spinning at 2.8 rev/s with arms in close to her body
Part A What is the angular momentum of a figure skater spinning at 2.8 rev/s with arms in close to her body, assuming her to be a uniform cylinder with a height of 1.5 m. a radius of 15 cm. and a mass of 48 kg ? Express your answer using two significant figures. Part B How much torque (in magnitude) is required to slow her to a stop in 4.8 s. assuming she does not move her arms? Express your answer using two...
(a) What is the angular momentum of a figure skater spinning (with arms in close to...
(a) What is the angular momentum of a figure skater spinning (with arms in close to her body) at 2.0 rev/s, assuming her to be a uniform cylinder with a height of 1.5 m, a radius of 16 cm, and a mass of 55 kg. _______ kg·m2/s (b) How much torque is required to slow her to a stop in 5.0 s, assuming she does not move her arms? _______ m·N
A dancer girl is rotating over a turntable with her arms out stretched. If she lowers...
A dancer girl is rotating over a turntable with her arms out stretched. If she lowers her arms, how does this affect her motion? Her spinning rate increases because her moment of inertia decreases. Her spinning rate decreases because her moment of inertia decreases. Her spinning rate remains the same because her moment of inertia doesn't change. Her spinning rate decreases because her moment of inertia increases. Her spinning rate increases because her moment of inertia increases.
What is the angular momentum of a figure skater spinning at 3.5 rev/s with arms in...
What is the angular momentum of a figure skater spinning at 3.5 rev/s with arms in close to her body, assuming her to be a uniform cylinder with a height of 1.6 m , a radius of 13 cm, and a mass of 60 kg? B.) How much torque is required to slow her to a stop in 5.8 s, assuming she does not move her arms?
Question 8 (6 points) A 60.0-kg skater is spinning at 0.800 rev/s with her arms and legs extended outward. In this position her moment of inertia with respect to the vertical axis about which she is spinning is 6.00 kg•m?. She pulls her arms and legs in close to her body changing her moment of inertia to 2.00 kg•m². What is her final angular velocity in rad/s? a) 8.71 rad/s b) 15.1 rad/s c) 2.40 rad/s d) 0.800 rad/s e)...
Emmy the trapeze artist flies through the air with her arms and legs stretched out, tumbling head over heels. As she rotates, she pulls her arms and legs close to her chest, as shown in the illustration As Emmy pulls her arms and legs in, how does her rotational inertia change? It increases. It decreases. It remains constant As Emmy pulls her arms and legs in, how does her angular momentum change? It increases It decreases It remains constant As...
A dancer girl is rotating over a turntable with her arms out stretched. If she lowers her arms, how does this affect her motion? Her spinning rate increases because her moment of inertia decreases. Her spinning rate decreases because her moment of inertia decreases. Her spinning rate remains the same because her moment of inertia doesn't change. Her spinning rate decreases because her moment of inertia increases. Her spinning rate increases because her moment of inertia increases.
Most questions answered within 3 hours.
-
When 60.1 gg of calcium is reacted with nitrogen gas, 31.7 gg of
calcium nitride is...
asked 2 seconds from now -
The random variable X is exponentially distributed, where X
represents the time it takes for a...
asked 14 minutes ago -
a) Write a verilog module for 1:4 Demultiplexer using verilog
primitives.
b) Design 1-to-4 DEMUX using...
asked 9 minutes ago -
MATLAB
write a MATLAB function (1) output a third-order polynomial
function with the coefficients as the...
asked 22 minutes ago -
A z-score
communicates a raw score’s "relative standing"
under the normal curve in relation to:
asked 30 minutes ago -
An object is vibrating on a spring with the following equation
of motion:
?=(30 ??)cos((2?)/(160)?)
a)...
asked 30 minutes ago -
Vulcan Flyovers offers scenic overflights of Mount St. Helens,
the volcano in Washington State that explosively...
asked 32 minutes ago -
If organizations do not adapt fast enough and move incrementally
from the twentieth-century model to the...
asked 33 minutes ago -
A helium balloon with 2.5L of gas has a gauge pressure of 10,000
Pa. The balloon...
asked 37 minutes ago -
What is responsible for Jupiter's enormous magnetic field?
asked 53 minutes ago -
At the end of the year, a company offered to buy 5,000 units of
a product...
asked 54 minutes ago -
Implement C++ program for each of the following.
Let D = [-48, -14, -8, 0, 1,...
asked 1 hour ago