Calculate the unknown mass of the cylinder m and calculate the force of tension A cylinder of unknown mass m is attached to a cord that is wrapped around a 3 kg pulley shaped as a hoop. The pulley-cylinder system is initially at rest. Once the cylinder is released, the linear acceleration of the pulley is 2m/s^2. Assume the axle of the pulley to be frictionless. The moment of inertia for a hoop is mr^2.

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?