Atoy dart gun generates a dart with .140 kg. m/s momentum and a velocity of 4m/s. what is the mass of the dart in kilograms?

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?

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.)

Find the magnetic field a distance r from the center of a long wire that has radius a and carries a uniform current per unit area j in the positive z direction.