Physics, 09.02.2021 17:20 pattington
A ladder of length 4 m is leaning against a wall at an angle of 60°. Its rungs are spaced 0.36 m apart. The ladder’s mass is insignificant compared to the 85 kg mass of a window washer who is climbing the ladder. The coefficient of static friction between the rubber feet of the ladder and the floor is 0.63, while you can ignore friction between the top of the ladder and the wall. What is the highest rung to which the washer can safely climb???
Answers: 2
Physics, 21.06.2019 20:20
To create electromagnetic induction, which of the following has to move? a. a wire b. a magnet c. a transformer d. either a or b
Answers: 2
Physics, 21.06.2019 21:40
Achemistry student needs of 40ml diethylamine for an experiment. by consulting the crc handbook of chemistry and physics, the student discovers that the density of diethylamine is 0.7 . calculate the mass of diethylamine the student should weigh out. round your answer to significant digits.
Answers: 1
Physics, 21.06.2019 21:50
When applying kirchhoff's rules, one of the essential steps is to mark each resistor with plus and minus signs to label how the electric potential changes from one end of the resistor to the other. the circuit in the drawing contains four resistors, each marked with the associated plus and minus signs. however, one resistor is marked incorrectly. which one is it?
Answers: 1
Physics, 22.06.2019 16:00
The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.
Answers: 2
A ladder of length 4 m is leaning against a wall at an angle of 60°. Its rungs are spaced 0.36 m apa...
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