Eddie the eagle, british olympic ski jumper, is attempting his most mediocre jump yet. after leaving the end of the ski ramp, he lands downhill at a point that is displaced 54.4 m horizontally from the edge of the ramp. his velocity just before landing is 27.0 m/s and points in a direction 40.0$^\circ$ below the horizontal. neglect any effects due to air resistance or lift.
a-what was the magnitude of eddie's initial velocity as he left the ramp?
b-determine eddie's initial direction of motion as he left the ramp, measured relative to the horizontal.
c-calculate the height of the ramp's edge relative to where eddie landed.

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)

What does every magnet possess? a. iron metal b.strong magnetic field c.repulsion d.north and south poles

The following statements are about the electroscope. select all that are true. if an electroscope were given a positive charge beforehand, the leaves would move closer together if a positively charged object were brought near. when a properly prepared electroscope is used to determine the type of charge on an object, the total charge on the electroscope changes when the charged object is brought near (but not touching) the electroscope. depending on how the electroscope is prepared beforehand, the leaves can either move together or move apart when negative charge is brought near. an electroscope must first be given a known type of charge before it can be used to identify the types of charges on objects brought near it. when properly prepared, the leaves on an electroscope will always move further apart when negative charge is brought near. the leaves of an electroscope will move apart if it is given either a positive or a negative charge.