Https://courses.physics.illinois.edu/phys102/sp2013/lectures/lecture2.pdf
Check out upload.
Answer:2m
Explanation:
Wavelength=velocity/frequency
Wavelength=4/2=2m
Answer:
7.1 J
Explanation:
From the question,
Work done by the mover = work done in pushing the crate + work done against friction
W = W'+Wf................. Equation 1
W = mgd+mgμd............ Equation 2
W = mgd(1+μ)................ Equation 3
Where m = mass of the crate, g = acceleration due to gravity, d = distance, μ = coefficient of friction.
Given: m = 46 kg, d = 10.5 mm = 0.0105 m, μ = 0.5
constant: g = 9.8 m/s²
Substitute these values into equation 3
W = 46×9.8×0.0105(1+0.5)
W = 7.1 J
Same answer as the first one above
Answer: Yos
Explanation: Becouse i experimented that btw
