A motocross bike drives off of a jump angled at 45◦. When the bike leaves the jump, it has a speed of 20 m/s (about 40 mph). To ensure a smooth landing, the landing ramp needs to be at the same angle as the bike’s trajectory when it lands. If the landing ramp is 15 meters lower than the jump, what angle below the horizon should the landing ramp slope down?

Apoint charge +q is at the origin. a spherical gaussian surface centered at the origin encloses +q. so does a cubical surface centered at the origin and with edges parallel to the axes. select "true" or "false" for each statement below. the electric flux through the spherical surface is greater than that through the cubical surface. suppose (for this statement only), that q is moved from the origin but is still within both the surfaces. the flux through both surfaces remains unchanged. the area vector and the e-field vector point in the same direction for all points on the spherical surface. the e-field at all points on the spherical surface is equal due to spherical symmetry. the flux through the spherical gaussian surface is independent of its radius.