Physics, 17.11.2020 05:40 hdhdenjdxk
Four pulley system is shown in the diagram. If its efficiency is 80%, calculate by using
the formula:
i. the effort applied to lift the load
ii. output work when the load is lifted up to 6 metres
iii. input work
iv. mechanical advantage
Answers: 1
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Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic
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Physics, 22.06.2019 17:40
Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.
Answers: 2
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This is a form of winter precipitation. it is frozen precipitation falling as ice pellets. snowflakes melt into raindrops as they pass through a thin layer of warmer air. the raindrops then refreeze into particles of ice when they fall into a layer of sub-freezing air near the surface of the earth. this precipitation is called a) hail. b) rain. c) sleet. d) snow.
Answers: 1
Four pulley system is shown in the diagram. If its efficiency is 80%, calculate by using
the formul...
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