Physics, 26.10.2021 07:30 23rwilliamson
1: You exert a force of 25 newtons while you move a rock 15 meters. How much work did you perform?
2: You move a box 5 meters and perform 900 joules of work. How much force did you apply to the box?
3: You move a box by exerting 45 newtons of force. The total work performed was 2700 joules. How far did you move the box? d. You exert of force of 75 newtons on a rock. You push and you push, but you can’t budge it. You are exhausted! How much work did you perform?
4: Let’s say a small person with a mass of 50 kg walks up two flights of stairs. A heavy person with a mass of 105 kg walks up the same stairs. Who did more work and why? (Hint: Remember that a newton of gravitational force (weight) is about equal to 100 grams.)
Answers: 2
Physics, 22.06.2019 11:20
Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
Answers: 1
Physics, 22.06.2019 13:40
Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?
Answers: 2
Physics, 22.06.2019 14:20
How many atoms of nitrogen are in the chemical formula ni(w on
Answers: 1
1: You exert a force of 25 newtons while you move a rock 15 meters. How much work did you perform?...
Mathematics, 19.03.2020 19:28
History, 19.03.2020 19:28
Mathematics, 19.03.2020 19:29
History, 19.03.2020 19:29
Social Studies, 19.03.2020 19:30
Mathematics, 19.03.2020 19:30
Social Studies, 19.03.2020 19:30
Mathematics, 19.03.2020 19:30
Mathematics, 19.03.2020 19:31