Explain the trend in CO stretches below.
ν(CO) = 2143 cm-1 in CO
ν(CO) = 2090 cm-1 in [Mn(CO)6]+
ν(CO) = 2000 cm-1 in [Cr(CO)6]
ν(CO) = 1860 cm-1 in [V(CO)6]-
In: Chemistry
A constant force acts on an object of mass 5 Kg for a duration of 2 seconds. It increases the objects v=u+atvelocity from 3m/s to 7m/s . Find the magnitude of the applied force. Now if the tax were applied for a duration of 5seconds, what would be the final velocity of the object ?
In: Physics
Does the input requirement set
V (y) = {(x1, x2, x3) | x1 + min {x2, x3} ≥ 3y, xi ≥ 0 ∀ i = 1, 2, 3}
corresponds to a regular (closed and non-empty) input
requirement set?
Does the technology satisfies free disposal? Is the technology
convex?
In: Economics
An archer shoots an arrow at a 75 m distant target; the bull’s-eye of the target is at same height as the release height of the arrow. If d = 75 m and v = 37 m/s. At what angle must the arrow be released to hit the bull’s-eye if its initial speed is 37m/s?
In: Physics
A 56.0-Ω resistor is connected in parallel with a 121.0-Ω resistor. This parallel group is connected in series with a 22.0-Ω resistor. The total combination is connected across a 15.0-V battery.
(a) Find the current in the 121.0-Ω resistor. A
(b) Find the power dissipated in the 121.0-Ω resistor. W
In: Physics
A 155 gg mass attached to a horizontal spring oscillates at a frequency of 3.70 Hz . At t =0s, the mass is at x= 6.40 cmcm and has v =− 45.0 cm/s . Determine:
a)The maximum speed
b)The maximum acceleration.
c)The total energy.
d)The position at t= 4.80 s
In: Physics
LINEAR ALGEBRA Prove or disapprove (no counterexamples):
Given that sets A = {u1....un} and B = {v1....vn} are subsets vectors of a vector space V.
If the vectors in A and B, respectively, are independent and dim(Span(u1....un)) = dim(Span(v1....vn))
then Span(u1....un) = Span(v1....vn)
In: Advanced Math
Estimate the heat of vaporization of diethyl ether at its normal boiling point using Trouton’s rule and Chen’s rule and compare the results with a tabulated value of this quantity. Calculate the percentage error that results from using each estimation. Then estimate ΔH^v at 100°C using Watson’s correlation.
In: Chemistry
Compare the measured values of tension to the calculated values of tension. What are the possible physical experiment uncertainties for the differences between the measured and calculated?
Measured= .075N
Caculated= .079N
Velocity v = .433m/s
Mass of Cylinder m = .1118kg
Radius of Pendulum r = .265
T=mv2/r
In: Physics
Four resistors are connected to a battery as shown in the figure. The current in the battery is I, the battery emf is ? = 6.20 V, and the resistor values are R1 = R, R2 = 2R, R3 = 4R, R4 = 3R. Find the voltages across each resistor. R 1, R2 and R3 are in series. R4 is in parallel.
In: Physics