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kriox
Questions (9)
When would a transformation of chemical energy to electrical energy occur?
when a reaction produces the same products when the
3 answers
216 views
Delroy is a technician for a telecom company that installs new fiberoptic lines for cable TV. What pathway of the Arts, AV
1 answer
182 views
What is the efficiency of a ramp if 2,000 joules of energy results in 1,200 joules of work?(1 point)
Responses 32% 24% 80% 60%
1 answer
148 views
A certain lever system is only 30% efficient. What could make it more efficient? (1 point)
Responses Have more than one person
1 answer
406 views
How does a pulley make work easier when it is used to lift an object?
It changes the direction of the lifting force to work with
1 answer
255 views
Force and Work Unit Test
9 of 129 of 12 Items Question Use the table to answer the question. Machine Output Work (J) Input Work
1 answer
187 views
In which situation did the car achieve the greatest efficiency? (Assume the cars all have the same mass.)(1 point)
Responses a
1 answer
290 views
A person is lifting a heavy box using a lever. What is the purpose of the lever in this situation?
A. to reduce the force needed
1 answer
170 views
A person using a lever applies 98 Newtons to lift a 20-kilogram box. They apply the force over a distance of 4 meters to lift
1 answer
306 views
Answers (2)
what is part 2
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