Apackage is dropped from a helicopter moving upward at 15 m/s. if it takes 12 s before the package strikes the ground, how high above the ground was the package when it was released if air resistance is negligible? a package is dropped from a helicopter moving upward at 15 m/s. if it takes 12 s before the package strikes the ground, how high above the ground was the package when it was released if air resistance is negligible? 318 m636 m530 m424 m

An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value