What effect did the cold war have on the american space program?
a. high levels of military spending deterred scientific research.
b. the need for nuclear weapons led to less sophisticated rocket technology.
c. american and soviet scientific cooperation lessened political tension.
d. competition with the soviet union spurred american space missions

Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.

Which type of basaltic lava flow has a fairly smooth

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?