Which soccer player has greater momentum? Explain! Alex: mass = 80 kg, velocity = 1.7 m/s
Jim: mass = 90 kg, velocity = 1.5 m/s
Brandon: mass = 60 kg, velocity = 3.0 m/s

Acatapult is tested by roman legionnaires. they tabulate the results in a papyrus and 2000 years later the archaeological team reads (distances translated into modern units): range = 0.4 km; angle of launch = π/5 rad; landing height = launch height. what is the initial velocity of launch of the boulders if air resistance is negligible?

Janelle made a hypothesis bout the uneven temperatures inside her house during winter. she believes that 50% of the ducts are blocked and she plans to investigate. if she wants to prove her hypothesis using scientific processes what should she do next?

What are the factors that affect the resistance of a wire?