An aluminum wire carrying a current of 9.0 A has a cross-sectional area of 6.0 multiplied by 10-6 m2Find the drift speed of the electrons in the wireThe density of aluminum is 2.7 g/cm3(Assume that one electron is supplied by each atom.)
YesJust grease the foil really wellIt will still stick a little because the batter will try to get into the wrinkles in the foil.
I would advise against using foil.I would grease the muffin tin with cooking spray or butter.then dust with flour.or if making chocolate cup cakes dust the pan with cocoa powder.
Don't use foil, just grease the cups in the muffin tin well with shortening or butterI grew up baking cupcakes with no fancy paper cups.
You know what can really keep a cupcake from sticking, grease the muffin pan with butterThat's what I did once when I made boxed banana nut muffinsOh man, I really miss the days when I would cook real food.
Answer 34.9 cm / s …… n number of electrons per unit volume … … number of electrons in volume V number of moles of Al in V … … density ρ 2.7 g / cm ? … - … 2.7 g in 1.0 cm ? 2.7 g in ( 1.0 × 10 ?? L ) … n 2.7 g / ( 27 g / mol ) 0.1 mol …using ratio and proportion … … 1 mol / 22.4 L 0.1 mol / V … - … V ( 0.1 ) ( 22.4 L ) 2.24 L … … molar density ρ? ( 0.1 mol ) / ( 2.24 L ) 0.04464 mol / L …………………… 0.04464 mol / 1000 cm ? 4.464 × 10 ?? mol / cm ? … mass in moles m? ρ? V ρ? [ A ( u Δt ) ] ( 4.464 × 10 ?? ) [ A ( u Δt ) ] … Using ratio and proportion again … … 1 mol / 6.02 × 10 ?? ( 4.464 × 10 ?? ) [ A ( u Δt ) ] / N … … N ( 6.02 × 10 ?? ) ( 4.464 × 10 ?? ) [ A ( u Δt ) ] …… ( 2687 × 10 ?? ) [ A ( u Δt ) ] … - … number of Al atoms in volume V … It follows that … ΔQ e N e ( 2687 × 10 ?? ) [ A ( u Δt ) ] … … I ΔQ / Δt e ( 2687 × 10 ?? ) [ A u ] … … u I / [ e ( 2687 × 10 ?? ) A ] I / [ e ( 2687 × 10 ?? ) ( 6.0 × 10 ?? m ? ) ] …… I / [ e ( 2687 × 10 ?? ) ( 6.0 × 10 ?? m ? ) ( 100 cm / m ) ? ] …… I / [ e ( 2687 × 10 ?? ) ( 0.06 cm ? ) ] …… 9.0 A / [ ( 1.6 × 10 ? ?? ) ( 2687 × 10 ?? ) ( 0.06 cm ? ) ] …… 34.9 cm / s
