A 45 kg block sits on a table and is acted on by a 120N horizontal force. The block moves at a constant velocity of 3 m/s. What is the frictional force acting on the block?
What is the coefficient of friction between the block and the table?

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

option number c is the right answer.

part 1: which substance has a higher solubility?

a

smallest amount left undissolved atall temps in table shown most has dissolved high sol'by

it is b. absorbs thermal energy