A fossil is found in a layer of rock. This layer of rock determines the fossil’s age. This demonstrates Select one:
a. relative age
b. absolute age
c. superposition
d. half-life

HEPL ME PLZ

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

prndulum needs thread, weight clock to time swings