here's something you can try at home - an experiment to measure your reaction time. have a friend hold a ruler by one end, letting the other end hang down vertically. at the lower end, hold your thumb and index finger on either side of the ruler, ready to grip it. have your friend release the ruler without warning. catch it as quickly as you can. if you catch the ruler 5.2 cm (~2 inches) from the lower end, what is your reaction time

Unpolarized light of intensity so passes through two sheets of polarizing material whose transmission axes make an angle of 60∘ with each other as shown in the figure. what is the intensity of the transmitted beam, st?

You have a pick-up truck that weighed 4,000 pounds when it was new. you are modifying it to increase its ground clearance. when you are finished

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?