subject
Physics, 16.10.2019 01:00 tina7659

Astudent of physics applies a constant force of 25newtons while lifting a heavy physics book up into the air a distance of 2.0meters. how much work does the student do on the book?
1) 0joules, because gravity pulled down on the book
2) 5.0joules
3) 50 joules
4) the answer cannot be found without knowing the mass of the book.
5) the answer cannot be found without knowing the net force on the book.

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 06:30
Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?
Answers: 1
question
Physics, 22.06.2019 10:20
Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.
Answers: 2
question
Physics, 22.06.2019 11:00
The government has declared that a hurricane is likely to hit the east coast. which government division is part of acf and provides guidance to citizens? a. job opportunities for low-income individuals b. office of human services emergency preparedness and response c. assets for independence d. low-income home energy assistance program
Answers: 1
question
Physics, 22.06.2019 14:00
Give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.
Answers: 1
You know the right answer?
Astudent of physics applies a constant force of 25newtons while lifting a heavy physics book up into...
Questions
question
English, 10.05.2021 23:10
question
Mathematics, 10.05.2021 23:10
Questions on the website: 13722363