Alex places 2 cubes side-by-side on a ramp made of wood. Cube #1 is ice and Cube #2 is wood
wrapped with sandpaper. The cubes are the same size and the same mass and are placed at the
same height on the ramp. When Alex released the two cubes, the ice cube slid down the ramp, but
the sandpaper cube did not move. What accounts for this difference?
The sandpaper block did not move because the forces of friction and gravity were balanced.
The ice cube moved because the forces of friction and gravity were balanced.
The sandpaper block did not move because the forces of friction and gravity were unbalanced.
The ice cube moved because the ice and ramp did not produce any friction which resulted in balance.
Answers: 2
Physics, 22.06.2019 04:30
Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.
Answers: 3
Physics, 22.06.2019 04:30
Light that is polarized along the vertical direction is incident on a sheet of polarizing material. only 96% of the intensity of the light passes through the sheet and strikes a second sheet of polarizing material. no light passes through the second sheet. what angle does the transmission axis of the second sheet make with the vertical?
Answers: 2
Physics, 22.06.2019 05:30
Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine
Answers: 1
Physics, 22.06.2019 10:50
Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.
Answers: 3
Alex places 2 cubes side-by-side on a ramp made of wood. Cube #1 is ice and Cube #2 is wood
wrapped...
History, 26.03.2020 05:59
Mathematics, 26.03.2020 05:59
Advanced Placement (AP), 26.03.2020 05:59
Mathematics, 26.03.2020 05:59
Mathematics, 26.03.2020 05:59
English, 26.03.2020 05:59
Business, 26.03.2020 05:59
Mathematics, 26.03.2020 06:00