Physics, 17.10.2019 23:30, stuckonquestions
Askier speeds down a smooth ski slope which is at an angle of θ = 23° with the horizontal. the mass of the skier is 71 kg. take the downhill direction to be positive and uphill to be negative. (a) what net force (in n) is acting on the skier? (indicate the direction with the sign of your answer.) n (b) what is the acceleration (in m/s2) experienced by the skier? (indicate the direction with the sign of your answer.) m/s2 (c) how does the net force experienced by the skier change if the ski slope becomes steeper? increases decreases remains the same
Answers: 2
Physics, 21.06.2019 15:30, linettepizarro1233
Which describe reflection? check all that apply. light bounces off a boundary.
Answers: 1
Physics, 22.06.2019 05:50, ladyty2109
Astudent wears sunglasses to her read a book more easily which wave interaction occurs as light passes from the air into the plastic lenses? a polarization b. refraction c. diffraction d. interference
Answers: 1
Physics, 22.06.2019 19:30, NewKidnewlessons
Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)
Answers: 3
Physics, 22.06.2019 22:50, mdg5605
The illuminance of a surface varies inversely with the square of its distance from the light source. if the illuminance of a surface is 120 lumens per square meter when its distance from a certain light source is 6 meters, by how many meters should the distance of the surface from the source be increased to reduce its illuminance to 30 lumens per square meter?
Answers: 3
Askier speeds down a smooth ski slope which is at an angle of θ = 23° with the horizontal. the mass...
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