Ascientist measures the growth of a bamboo plant over time. the table below shows the results.

time (hours)
height (cm)
10
1.2
20
1.5
30
1.8
40
2.1
50
2.4
60
2.8
what is the best inference for the height of the plant after 15 hours?

a. 1.35 cm
b. 1.20 cm
c. 1.50 cm
d. 1.55 cm

Niobium forms a substitutional solid solution with vanadium. compute the number of niobium atoms per cubic centimeter for a niobium-vanadium alloy that contains 24 wt% nb and 76 wt% v. the densities of pure niobium and vanadium are 8.57 and 6.10 g/cm3, respectively

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.