A heavy crate dropped from an airplane flying horizontally at a constant velocity at a high altitude. Ignoring air resistance, where will the plane be relative to the crate when the crate hits the ground? A)The plane will well in front of the crate

B)plane will be slightly in front of the crate

C)The plane will be directly over the crate

D)The plane will be slightly behind the crate

E)plane will be far behind the crate

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

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