A comet is observed at a distance of 6.50 AU from the center of the Sun, moving at a speed of 36.4 km/s. The comet has a mass of kg. Find the total energy of the comet. Use a value of m for one AU.
Engineers desire to model the magnitude of the elastic force of a bungee cord using the equation
where is the stretch of the cord along its length and is a constant. If it takes 22.0 kJ of work to stretch the cord by 16.7 m, determine the value of the constant .
An 80.0 kg sprinter accelerates from rest to 12.0 m/s in 2.90 s.
What is the average power output of the sprinter in watts?
What is the average power output of the sprinter in horsepower? In metric horsepower, 1 hp = 735.5 W.