Which of the following is the correct SI unit to use to measure a length of rope? A
Yards

B
Feet

C
Meters

D
Inches

the answer is d

lies a supermassive black hole called sagittarius a*, or sgr a* for short.

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

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