Apicture window has dimensions of 1.40 m×2.50 m and is made of glass 6.00 mm thick. on a winter day, the outside temperature is -18.0 ∘c , while the inside temperature is a comfortable 19.5 ∘c a) at what rate is heat being lost through the window by conduction? express your answer using three significant figures. b) at what rate would heat be lost through the window if you covered it with a 0.750 mm-thick layer of paper (thermal conductivity 0.0500 w/m⋅k)? express your answer using three significant figures.

When an object moves in uniform circular motion, the direction of its acceleration is a) in the same direction as its velocity vector. b) in the opposite direction of its velocity vector c) is directed toward the center of its circular path. d) is directed away from the center of its circular path. e) depends on the speed of the object.

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s