The system is initially moving with the cable taut, the 10-kg block moving down the rough incline with a speed of 0.070 m/s, and the spring stretched 30 mm. by the method of this article, (a) determine the velocity v of the block after it has traveled 91 mm, and (b) calculate the distance d traveled by the block before it comes to rest.

An equinox occurs when a. neither end of earth's axis is tilted toward or away from the sun. b. the north end of earth's axis is tilted away from the sun. c. the north end of earth's axis is tilted toward the sun. d. earth's axis is parallel to the sun's rays. select the best answer from the choices provided a b c d

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?

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.