Arace car driver must average 200km/hr for four laps to qualify for a race. because of engine trouble, the car averages only 170km/hr over the first two laps. what is the average speed must be maintained for the last two laps

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?

Both independent and dependent clauses

Contains chemical energy. a. heat b. light c. natural gas