A toy car of 0.8 kg travels 40m in 2s. What is its momentum?

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it past

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat