Pierre pushes a hockey puck that is initially at rest on frictionless ice by applying a constant force until the puck reaches a final velocity of 1 m/s . On his second attempt, Pierre wants the hockey puck to reach the same final velocity by applying a force that is twice as large. Therefore, Pierre must exert the larger force for a time interval that is

The car hoist allows the car to be driven onto the platform, after which the rear wheels are raised. if the loading from both rear wheels is 1380 lb, determine the force in the hydraulic cylinder ab. neglect the weight of the platform itself. member bcd is a right-angle bell crank pinned to the ramp at c. the force is positive if in tension, negative if in compression.

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

Achild has maximum walking speed of 1.6 m/s. what is the length of the child's legs? 0.26 m