Asolid steel cylinder is standing (on one of its ends) vertically on the floor. the length of the cylinder is 3.2 m and its radius is 59 cm. when an object is placed on top of the cylinder, the cylinder compresses by an amount of 5.6 10-7 m. what is the weight of the object?

To solve this problem it is necessary to apply the concepts related to Young's Module and its respective mathematical and modular definitions. In other words, Young's Module can be expressed as

Where,

F = Force/Weight

A = Area

= Compression

= Original Length

According to the values given we have to

Replacing this values at our previous equation we have,

Therefore the Weight of the object is 3.82kN

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27