can some clearly explain the thermal energy equation? q=m(tf - ti)ci know that  q is change in thermal energy which is measured in joules m is mass the ts mean change in temperature and c is specific heat. what i want to know is how to do the equation. my book doesn't explain it well. take your time to explain clearly my brain is dead you can use illustrations or whatever but do so clearly.

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong chain

Determine el momento angular de un rueda de 3000g moviendose a 10m/s con un radio de giro de 400cm