How does temperature influence the appearance of a star? Give an example in your response.

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

An ideal otto cycle has a compression ratio of 10.5, takes in air at 90 kpa and 40°c, and is repeated 2500 times per minute. using constant specific heats at room temperature, determine the thermal efficiency of this cycle and the rate of heat input if the cycle is to produce 90 kw of power.