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A woman with her arms outstretched has a moment of inertia of 2 kg m^2. She rotates on a stool at an angular velocity of 6rad s^-1. At a certain instant she grabs a 3kg object in each hand, holding them 0.8 m from the axis of rotation. if the objects are initially at rest, what is her angular velocity?
For the definitions please include the equations to: Give a definition of the moment of inertia and Give a definition of the torque as a vector. Briefly describe torque
The height of the haystack is 1 meter. You press down on topof the stack and discover that to compress the stack by 25cm, What is the haystack's spring constant
An electron is in the ground state of an infinite square well. The energy of the ground state is E1 = 1.26 eV. What is the width of the square well
Resistors R1, R2, and R3 have resistances of 37.0-ohm, 22.0-ohm, and 41.0-ohm respectively. R1 and R2are connected in series, and their combination is in parallel with R3. What is the equivalent resistance of the three resistors
Earth has a mass of 5.98 × 1024 kg. The average mass of the atoms that make up Earth is 40 u. How many atoms are there in Earth
A 130kg astronaut (including space suit) acquires a speed of 2.55m/s by pushing off with his legs from a 2000kg space capsule. What is the change in speed of the space capsule
A scuba diver takes a tank of air on a deep dive. The tank's volume is 10 L and it is completely filled with air at an absolute pressure of 222atm at the start of the dive
The electric potential at x = 3.0 m is 120 V, and the electric potential at x = 5.0 m is 190 V. What is the electric field in this region, assuming it's constant? -140 N/C 140 N/C -35 N/C 35 N/C 75 N/C.
a 100g marble (modeled as a solid sphere with radius 2cm) rolls without slipping down a ramp. How tall is the ramp
A rock is released from rest into water. The magnitude of Fd of the drag force acting on the rock due to its motion through water can be modeled as Fd = Cd(v), where v is the speed of the rock and Cd is the constant drag coefficient. Determine the..
if the radius of the equipotential surface of a point charge is 10.5 m, what are the magnitude and sign of the point charge
A 2.28uF capacitor is charged to 1230V and a 7.87uF capacitor is charged to 530V. These capacitors are then disconnected from their batteries, What will be the potential difference across each
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