Activity 3: Paper Football Make a paper football (Directions) and practice flicking it a few times. Flick it in a variety of ways until you can answer
the following questions.
What is true about the height of the football (projectile) off the table or surface when the distance is a maximum?
What is true about the height of the football when the distance is a minimum? When you increase the angle you flick
the football at, what happens to the height of the trajectory? When you increase the angle you flick the football at,
what happens to the distance the football travels? What happens when you launch your paper football at a 45
degree angle?

Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?

Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.

A51 kg woman skis down a hill and her kinetic energy is 9.96e4 j. what is her speed?