3. A 0.75-kg physics book with dimensions of 24 cm by 20 cm is on a table. a. What force does the book apply to the table? b. What pressure does the book apply?

a. The force that the book applies to the table is equal to, which is the product of its mass and the acceleration due to gravity. The mass of the book is 0.75 kg and the acceleration due to gravity is approximately 9.8 m/s^2. Therefore, the force that the book applies to the table is:<br /><br />Force = mass x acceleration due to gravity<br />Force = 0.75 kg x 9.8 m/s^2<br />Force = 7.35 N<br /><br />b. The pressure that the book applies to the table is the force divided by the area over which the force is applied. The area of the book is 24 cm x 20 cm = 480 cm^2 = 0.048 m^2. Therefore, the pressure that the book applies is:<br /><br />Pressure = Force / Area<br />Pressure = 7.35 N / 0.048 m^2<br />Pressure = 153.75 Pa