Flat disk of radius r has circular hole of radius r/2 that is positioned as shown on the picture. mass of the disk is m. find moment of inertia i of such disk with respect to the axis going through the geometrical center of the disk o perpendicular to the disk’s plane

For us to get the moment of inertia, we have to calculate it with the radius R, and then we will subtract the moment of inertia to the R/2 disc with the axis of it that will be found in the circumference. 

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.

answer: c, the green line

step-by-step explanation:

there is no black line, eliminate b.

simple interest implies periodic payments, but the red line shows no payments, eliminate d.

simple interest has equal payments. if paid say every day, the graph is about a straight line (actually a stairstep).

the yellow line is not straight, eliminate a.

check: the green line is straight, answer is c.

simple interest with positive interest rate gives a straight line sloping up to the right. green line:

g(t) = $100 + ($200-$100) ÷ (20 years) × (t years)

= $100 + (4%/year) × ($100)(t years)

incidentally, the yellow line curving upward represents continuously compounded interest

y = $100 × 2^(t years / (14 assuming the yellow line hits $200 at 14 years. 2^0 is 1, so y(0) = $100; 2^(14/14) is 2, so y(14) = $200.