A 60-yd punt (55 meters) with a hang time of 5.85 seconds. What is the Horizontal Velocity at the peak? my answers are
a. 12.8
b. 9.4
c. 6.5
d. 0.00

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

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?

When doing scientific research ,the sources used should be ?