An elevator is designed such that when traveling upward, it has a constant acceleration from rest to its cruising speed of 2.00 m/s in a time of 3.00 s. The elevator has a mass of 675 kg and you may ignore friction. What is the average power of the elevator motor during this period?
Answers: 2
Physics, 21.06.2019 22:30
A1200 kg car traveling north at 10 m/s is rear-ended by a 2000 kg truck traveling at 30 m/s. what is the total momentum before and after the collision?
Answers: 3
Physics, 22.06.2019 00:00
Name three different units of energy used to measure heat and describe what type of situations each is usually used.
Answers: 2
Physics, 22.06.2019 10:00
Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.
Answers: 1
Physics, 22.06.2019 12:10
An ionic compound can conduct electricity when a it is dissolved in water b its crystals are ground into powder c it is in solid form d it is heated to just below its melting point
Answers: 1
An elevator is designed such that when traveling upward, it has a constant acceleration from rest to...
Mathematics, 29.06.2019 23:00
History, 29.06.2019 23:00
Chemistry, 29.06.2019 23:00
Mathematics, 29.06.2019 23:00
Biology, 29.06.2019 23:00
Mathematics, 29.06.2019 23:00
Business, 29.06.2019 23:00
Mathematics, 29.06.2019 23:00
Mathematics, 29.06.2019 23:00