A 1500 kg tractor pulls a 750 kg trailer north and applies a 2250 N force on it. What is the direction of the force on the tractor?

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

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below. your friend goes first, and you follow after he has dropped a distance of 2.0m. when your friend hits the water, is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.

How many neutrons does plutonium -196 with an atomic number of 78.