You place a uniform solid disk and a uniform thin ring next to each other at the top of an incline of height h and release them from rest at the same instant.

(a) if they roll without slipping, what are the speeds of each when they reach the bottom? (use any variable or symbol stated above along with the following as necessary: g for the acceleration of gravity.) vdisk = vring =

(b) which object reaches the bottom first?

Six solutions are made, each with a y concentration of 1.0 μm and varying concentrations of ab as shown below. based on the concentrations, rank the solutions in decreasing order of reaction rate.

Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.

In a good thermo flask the main cause of heat loss is