subject
Physics, 26.05.2021 18:30 mona92

How much power is required to raise a 30 kg crate a vertical distance of 6 m in a time of 4 seconds? a. 52.5 W
b. 120 W
c. 385 W
d. 450 W
e. 525 W
​

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 11:00
Alarge box of mass m is pulled across a horizontal frictionless surface by a horizontal rope with tension t. a small box of mass m sits on top of the large box. the coefficients of static and
Answers: 1
question
Physics, 22.06.2019 13:50
9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.
Answers: 1
question
Physics, 22.06.2019 16:00
A( developed during the process of technology design
Answers: 3
question
Physics, 22.06.2019 16:50
Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.
Answers: 2
You know the right answer?
How much power is required to raise a 30 kg crate a vertical distance of 6 m in a time of 4 seconds?...
Questions
question
Mathematics, 27.07.2019 03:30
question
Mathematics, 27.07.2019 03:30
Questions on the website: 13722363