Aboat is pulled in to a dock by a rope with one end attached to the front of the boat and the other end passing through a ring attached to the dock at a point 6 ft higher than the front of the boat. the rope is being pulled through the ring at the rate of 0.4 ft/sec. how fast is the boat approaching the dock when 10 ft of rope is out?

The speed of the boat when is approaching the dock is

v=0.5

Explanation:

When the boat is 10ft os the rope using trigonometry can find the length to know the speed  the boat is

Now the velocity final is just at x axis so iis derivate the function can find the velocity

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is