Question

please answer the questions in photo it's multiple choice questions​

Answer 1

Explanation:

5.(b) copper piece is more than that if glass piece.

6.(b) v = s/t

7(a) 4km/h

8(b) 0.84g/mL

Answer 2

Answer: 5.b

6.b

7.a

8.c

Explanation:

5. Density is known as mass per unit volume. Therefore mass of copper is more than that of glass of same volume.

6. Speed is known as distant travelled in unit time. Therefore speed=distance/time.

7. Speed=Distance/time

=2/0.5 (since 30min= 0.5 hour)

= 4km/h.

8. Density= Mass/volume

=42/5 (since 50ml= 5 cm³)

=8.4gm/cm³.