*please help* A rope is used to slide a 225 N crate full of marbles up a 35.0° ramp at constant speed. The coefficient of kinetic friction for the surfaces of the crate and ramp is 0.26. (g = 9.81 m/s ) What are the x and y components of the force due to gravity?

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?

In which of these cases are the two wave points considered to be in phase with each other?

Suppose the house in question 3 is located in cleveland where the annual average solar flux is 160 w/m2 . if 10 m2 of solar panels operating at 20 percent efficiency were installed on this house to collect and store solar energy in the form of hot water: