A Christmas sphere will break if dropped on hardwood floor with a velocity of 2.0 m/s. Mar Estefanla is decorating her Christmas tree when her cat, Missy, taps a sphere, causing it to fall 0.15 m from a tree branch to

the floor.

What is the velocity of the sphere right before it hits the ground? Acceleration due to gravity vs 9.8 m/s

Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =