Physics, 18.03.2021 03:00 kaylallangari1509

CER AJUTOR IMEDIAT O placă dreptunghiulară cu lăţimea l = 1m şi lungimea L = 2m se încălzeşte cu 100ºC. Prin măsurare, un elev contată că lăţimea plăcii se măreşte cu 2mm (la încălzirea cu 100ºC).

Cu cât se dilată placa în lungime?

Calculati latimea si lungimea placii dilatate si aria acesteia.

Cu cât s-ar alungi o bară din acelaşi material având lungimea de 40m dacă s-ar încălzi cu 25ºC?

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 21.06.2019 18:00, jr101213

What is the magnification of a real image if the image is 10.0 cm from a mirror and the object is 50.0 cm from the mirror ? use the equation m=-di/do. a. -5.0 b. 5.0 c. 0.20 d. -0.20

Answers: 1

continue

Physics, 22.06.2019 15:40, dreamdancekay

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9

Answers: 1

continue

Physics, 22.06.2019 18:00, jacob7758

Wind and moving water provide energy. question 1 options: chemical mechanical thermal none of the above

Answers: 1

continue

Physics, 23.06.2019 02:30, janeou17xn

If jason ii needs 15 kw of power at 300 volts to operate, what amperage of current must flow through the cable?

Answers: 1

continue

You know the right answer?

CER AJUTOR IMEDIAT O placă dreptunghiulară cu lăţimea l = 1m şi lungimea L = 2m se încălzeşte cu 10...