A couch was pushed with a force of 11 N across a smooth floor for 8 seconds. What was the impulse applied to the couch?

If you put a helium-filled balloon in the refrigerator, what will happen?

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?

Explain the difference in reactivity of the elements based on their electron configurations.