subject
Physics, 14.03.2020 04:22 jwagner2277

You see the boy next door trying to push a crate down the sidewalk. He can barely keep it moving, and his feet occasionally slip. You start to wonder how heavy the crate is. You call to ask the boy his mass, and he replies " 48 kg ." From your recent physics class you estimate that the static and kinetic coefficients of friction are 0.90 and 0.40 for the boy's shoes, and 0.50 and 0.20 for the crate.

Estimate the mass of the crate.

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 03:50
The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?
Answers: 1
question
Physics, 22.06.2019 08:50
You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?
Answers: 1
question
Physics, 22.06.2019 08:50
The experiment was repeated many years later but the gases were mixed in a different type of container. a white solid was obtained which was xenon fluoride. predict whether you think 1) krypton and 2) radon will react with fluorine. explain reasons for your predictions
Answers: 3
question
Physics, 22.06.2019 10:00
Which accurately compares concave and convex lenses?
Answers: 2
You know the right answer?
You see the boy next door trying to push a crate down the sidewalk. He can barely keep it moving, an...
Questions
question
Mathematics, 21.04.2021 21:30
question
Mathematics, 21.04.2021 21:30
question
Mathematics, 21.04.2021 21:30
question
SAT, 21.04.2021 21:30
question
Mathematics, 21.04.2021 21:30
question
Mathematics, 21.04.2021 21:30
Questions on the website: 13722363