2) Using the lab equipment and a calculator, compute the density and identify the mineral in question.
Mineral Densities
Mineral Density (gm/ml)
Potash alum 1.75
Hornblende 3.0
Zircon 4.7
Phosgenite 6.0
Galena 7.2
Platinum 21.45

A) galena
B) platinum
C) phosgenite
D) potash alum

PLEASE HELP ME PLEASSEE

need to see circuit to get time constant

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)

the speed of the cart after 3 seconds of low fan speed is ⇒ 54.0 cm/s.

the speed of the cart after 5 seconds of medium fan speed is ⇒ 120.0 cm/s.

the speed of the cart after 2 seconds of high fan speed is ⇒ 64.0 cm/s. 

just did the lab.