Answer: 12.4 feet
Explanation:
If there is a smooth transition and there is no change in slopes, energy considerations can be used
The cube has a kinetic energy of
ke = mv^2/2 = 10 lbm * 20^2ft^2/s^2 / 2 = 2000 lbm-ft^2 / s^2
At the highest point when there is a gain in potential energy
pe = mgh = 10 lbm * 32.2 ft/s^2 * h ft = 322 lbm ft^2/s^2
If there is no loss in energies,
pe = ke
322h lbm ft^2/s^2 = 2000 lbm ft^2/s^2
h = 2000 /322 = 6.211 (ft)
= h / sin(30) = 12.4 ft
Answer:
1. Be sure to use the correct type and size of screwdriver on every kind of screw to avoid injury to yourself or damage to equipment.
2. It is also unsafe to carry screwdrivers in pockets or to use them around moving machinery.
3. Screwdrivers are not safe to use as hammers or chisels or for prying.
Explanation:
Your answer is correct the last procedure of a vehicle starting is selecting the appropriate gear for the right situation. (D)
Advancement in technology is the increase in the innovation in the field of technology which makes the things easier for the people.
<u>Explanation:</u>
Technology advancement incorporates the production of print head exhibits and various carriage frameworks that spread a bigger territory of material in a solitary go of the substrate.
Digital media, Personal computers, Space flight, Mobile phones, Nuclear power, Electronic funds transfer are some of the examples of the advancement in the technology which have made the life of the people easier.