If the fixed carriage and the sliding carriage are at a radius of 15 cm and you add a total mass of 300 g to the sliding carriage, what total mass in grams should you have in the fixed carriage

Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?

Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?

Select the three ways that the parallel-plate capacitor differs from a car battery.