How do you calculate friction

A skidder dragging of 520 kg walk-through forest at a constant speed of 3.5 m/s. If the skidder is applying a force of 1850 N what is the coefficient of friction between the log and the ground

A phone cord is 4.67 m long. The cord has a mass of 0.192 kg. A transverse wave pulse is produced by plucking one end of the taunt cord. The pulse makes four trips down and back along the cord in 0.794 s. What is the tension in the cord?

2. A block of wood of volume 80 cm and density 0.5g/cm3 floats in water. What is the volume immersed in the water if d = 1 g/cm? 3 ... Pomilind ofdoneitsi water

Does a rigid object in uniform rotation about a fixed axis satisfy the first and second conditions for equilibrium?

An Ohmic material is one in which its resistance does not depend on the voltage across it or the current within it. In that case, the resistance does NOT depend on:

A boulder on top of a cliff has a potential energy of 12400J. How high above is the boulder?

If the graph represents speed what is measured on the x and y axes

It is difficult to lift a heavy stone than the lighter one on the earth, why?

The vapor pressure of ethanol at 25 degrees C is 7.83 kPa. Calculate the vapor pressure in atm. Round answer to 3 significant digits.

According to Newton's second law of motion acceleration or an object depends upon the ___ of the object and the ___ Acting on it. I'm confused on what the blanks are. I can't find them.