We have a 10kg ball and a 15kg ball. We drop them from the top of the science building while objects are at rest and there is no wind resistance. Which one hits the ground first?​

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Which of the following changes will result in a stronger electromagnet? a. using fewer coils of wire b. using a higher voltage c. using a shorter nail d. using a longer wire

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.