An investigator plots 1/v as a function of 1/(concentration of substrate) for data collected with and without an inhibitor. The best-fit line of the data collected in the absence of the inhibitor had a slope of 0.12 (arbitrary units of time) and a y-intercept of 0.05 (arbitrary units of time per concentration). The best-fit line of the data collected in the presence of the inhibitor had a slope that was 2.9-times as steep (arbitrary units of time) and a y-intercept of 0.05 (arbitrary units of time per concentration). If the concentration of inhibitor was 60 nM, what is the value of the inhibition constant Ki in terms of nM to the nearest tenth?

if a system is able to procude 5v to 45 v max. 2 amps to 20 amps max. how do you prevent malfunction of this systsm through GFI or circuit breaker? for example. if the max current is 20 amps and the system is drawing 20.1 amps. how do we degrade the system so that it will go back to 20 amps. draw a circuit of GFI or circuit breaker to explain please. Please dont shutdown the system if it goes over the limit, but reverse it back to the right amps or voltage without ahutting down the system.

v) If a central bank wants to increase the market interest rates, they should buy or sell public debt? vi) If an economy faces high unemployment, the centra bank should buy or sell public debt? vii) How can Central Banks target a specific level of interest rate?

A sphere of radius r has surface area A = 4πr2 and volume V = 4 3 πr3. The radius of sphere 2 is triple the radius of sphere 1.

(a)What is the ratio of the areas, A2/A1?

(b) What is the ratio of the volumes, V2/V1?

. A particle is moving so that its velocity is v(t) = 3t 2 − 30t + 48 meters/min, where t is time in minutes.

a. Find the displacement (change in position) of the particle in the first 12 minutes. Give units.

b. Find the total distance traveled by the particle in the first 12 minutes. Give units.

matlab

use matlab to calculate the velocity of the vertical falling ball (v) as a function of time by numerical
derive the following measurement values.(x is height in meters and y is the landing time in milliseconds) Make sure that the speed in the starting point is 0. Then reset
instantaneous velocity as a function of time in a diagram with matlab

x=[0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.50 2.00 2.50 3.00 3.40 3.80 4.20 4.60 5.0]

y=[[0.00 1.620 2.937 3.635 4.217 4.800 5.377 6.013 7.226 8.259 9.219 9.999 10.751 11.455 12.170 12.882]

please write the matlab code with explaination so i can understand it better, thankd in advance!!

A circular saw blade (E = 200 GPa, v = 0,3) can be considered as a 2 mm thick disc with an outer diameter of 600 mm and central hole of 100 mm diameter bolted to a rigid inner rotating disc. Determine the maximum rotational speed if initial yielding of the disc occurs for a Tresca yield stress of 200 MPa.

A bottle of mass mb =0.1 kg and volume V =0.1m3 is attached to the bottom of a vertical thin rod of length l = 1 m and mass mr = 2 kg, that is hinged at the top end. The bottle is full of hydrogen (mH = 1.67 × 10−27 kg) and is at atmospheric pressure and temperature T0 = 20 0C.

(a) What are the number of moles and the initial rms velocity of the hydrogen?

(b) The temperature of the oxygen in the bottle is now increased to T = 100 0C. What is the new pressure inside the bottle?

(c) At this temperature, the cork at the end of the bottle, mass mc = 0.05 kg and cross- sectional area A = 0.01 m2, pops off causing the cork to fly off in one direction (as- sumed to be in the horizontal direction). If the cork was held in by a kinetic friction fk =100N,andittakes∆t=0.01sforthecorktopopoff,whatisthespeedofthe cork as it flies off? (Hint: Use impulse.)

(d) While the cork is flying off, what must be conserved? Be specific. After the cork flies off, the rod/bottle system begins to swing with an angular speed of ω. Determine ω for the rod/bottle system. (You may ignore the mass of the air inside the bottle.)

(e) To what height will the rod/bottle system swing up to? (Hint: Don’t forget about the center of mass of the rod.)

Write an expression for the instantaneous voltage ?(?) delivered by an ac generator supplying 120 V rms at 70 Hz. Assume the voltage is 0 at time ?=0, and leave the factors in exact form; do not round their values. Write the argument of the sinusoidal function to have units of radians, but omit the units.