A camera lens used for taking close-up photographs has a focal length of 23.7 mm. The farthest it can be placed from the film is 33.1 mm. a. What is the closest object that can be photographed

Awheel rotates without friction about a stationary horizontal axis at the center of the wheel. a constant tangential force equal to 82.0 n is applied to the rim of the wheel. the wheel has radius 0.150 m . starting from rest, the wheel has an angular speed of 12.8 rev/s after 3.88 s. what is the moment of inertia of the wheel?

In a system, when potential energy decreases, then entropy also decreases. true false

(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.