Melissa C.

An elite Tour de France cyclist can maintain an output of 470 Watts during a sustained climb. At this output power, how long would it take a 84 kg cyclist (including the mass of his bike) to climb... more

A physics student decides to take a ride on an Ferris wheel, The wheel has a diameter of 12 m and spins at a constant rate making three complete revolutions per minute. (i) Determine the speed of... more

A block of mass 2-kg is sliding on a frictionless surface with speed 7 m/s. It reaches an incline surface, on which there is a spring with spring constant of 100 N/m. The block moves up a distance... more

(a) Evaluate the gravitational potential energy (in J) between two 9.00 kg spherical steel balls separated by a center-to-center distance of 22.0 cm.(b) Assuming that they are both initially at... more