4. A solid piece of lead has a mass of 23.94 g and a volume of 2.1 cm. From these data, calculate the density of lead in

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4 A Solid Piece Of Lead Has A Mass Of 23 94 G And A Volume Of 2 1 Cm From These Data Calculate The Density Of Lead In 1 (40.27 KiB) Viewed 45 times

4. A solid piece of lead has a mass of 23.94 g and a volume of 2.1 cm. From these data, calculate the density of lead in SI units kg/m'. (p = m/V) ANS. 11400kg/m 5. The components of vector B are following: B-10 m, B,=4 m. (a) Draw the vector. (b) Find the magnitude of B. (c) Find the direction of vector B. ANS. 10.8 m 158.2⁰ 6. A particle undergoes three displacements. The first has a magnitude 50 m and due east. The second displacement vector has magnitude 75 m and due southwest, and the third displacement has a magnitude 90 m and is due north. (a) Find the resultant displacement using graphical method. (b) Find the magnitude and direction of the resultant displacement. ANS. R=37.1m 0= 158.2⁰ W- N E