Determine the value of impulse from this graph of momentum vs. time. A.
9 newton seconds
B.
12 newton seconds
C.
18 newton seconds
D.
20 newton seconds

no. dot product   =0 when vecs at right angles

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2