When Dr. Montero was observing the endoplasmic reticulum of a cell using an electron microscope, she noticed that it was covered with ribosomes. What structure was she observing?
A
smooth endoplasmic reticulum

B
rough endoplasmic reticulum

C
convoluted endoplasmic reticulum

D
porous endoplasmic reticulum

Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest.2000 kg car going 5m/s500 kg car going 20 m/s1000 kg car going20m/s500 kg car going10m/s1000 kg car going10/s4000 kg car going 5m/s 0 0 603

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )

Debris produced by mining is called