When a machine does work, a trade-off occurs. Which of the following best exemplifies this trade-off?
A. A pulley changes the direction of your force, but requires a greater input force.
B. A lever increases output force and the distance the load moves.
C. A wheel and axle increases output force and the distance the load moves.
D. A ramp allows you to decrease force, but requires a greater distance.
Answers: 3
Chemistry, 22.06.2019 09:30
1. explain hydrogen peroxide, h 2 o 2 properties and decomposition reaction. 2. describe how each of the following natural cycles plays a part in earthβs climate system. (a) the water cycle (b) the carbon cycle
Answers: 1
Chemistry, 22.06.2019 14:30
Chemistry worksheet - i am not sure what they are asking for exactly?
Answers: 1
Chemistry, 22.06.2019 16:00
The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 β 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride
Answers: 1
Chemistry, 22.06.2019 18:50
At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver
Answers: 1
When a machine does work, a trade-off occurs. Which of the following best exemplifies this trade-off...
History, 28.09.2020 18:01
History, 28.09.2020 18:01
Geography, 28.09.2020 18:01
History, 28.09.2020 18:01
Chemistry, 28.09.2020 18:01
English, 28.09.2020 18:01
Chemistry, 28.09.2020 18:01
Mathematics, 28.09.2020 18:01