Can someone please help me with this question? The momentum of 12-kg dog racing to greet its owner, has a magnitude of 37kg * m/s. what is the dog's speed?

List one type of erosion and describe how it happens?

Lymphocytes known as blastocysts make antibodies that fight infection. select the best answer from the choices provided t f

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)