Where can i get questions and solutions for static and dynamic systems problems?

How much heat is required to convert 0.3 kg of ice at 0°c to water at the same temperature

Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.

According to newton’s first law of motion, which force is expected to cause a body to accelerate?