A child is sledding. He starts at the top of the hill with a velocity of zero, and 3 seconds later he is speeding down the hill at 12 meters per second. What is the child's acceleration?

What is the Alternative Name for responding varible

True or false The construction of ac generators and ac motors are similar, and the construction of dc generators and the dc motors are similar.

B. A locomotive of a train exerts a constant force of 280KN on a train while pulling it at 50 km/h along a level track. What is: [4 marks) i. Workdone in quarter an hour and [4 marks]

What is the displacement current in the capacitor if the potential difference across the capacitor is increasing at 500

Is the following true or false? Continental glaciers fill depressions in the surface with water, where they create cirques.

A moving object has a kinetic energy of 150 j and a momentum with a magnitude of 30.0 kg•m/s. determine the mass and speed of the object

How does changing depth affect water pressure

The mass of a rigid rod is 0.60 kg and its length is 39.0 cm. Calculate the moment of inertia (in kg · m2) for the rod if it is pivoted about an axis through the center of mass of the rod. (Assume the axis is perpendicular to the rod.

Does a rolling basketball have kinetic energy

Noah Formula is in an airplane which is flying at constant speed in a circular course of radius 6500 m, circling O'Hare's airplane prior to landing. Noah observed that the plane completes each round trip in 345 seconds (5 minutes & 45 seconds).