Calculate the moment of inertia of the array of point objects shown in Fig. below about (a) the y
axis, and (b) x axis. Assume m = 2.2 kg, M = 3.4 kg, and the objects are wired together by very
light, rigid pieces of wire. The array is rectangular and is split through the middle by the x axis.
(c) About which axis would it be harder to accelerate this array?

Aray of light traveling parallel to the principal axis of a concave mirror will be reflected through the mirror's

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

A10 kg box initially at rest is pulled 18 meters across a horizontal, frictionless surface by a 40 n force. what is the block’s final velocity over the 18 meters?