Zadania 1 Rowerzysta, poruszając się na rowerze ruchem jednostajnym prostoliniowym wykonał pracę 24 kJ. Jaką odległość pokonał rowerzysta, jeżeli siła oporu ruchu wynosiła 30N? 1kJ = 1000J Zadanie 2 Oblicz pracę wykonaną przez ciało działające siłą 50N na drodze 20 cm. Zadanie 3 Spychając na pobocze zepsuty samochód, Stefan wykonał pracę 3000 J na drodze 6 m. Jaką siłą działał? Proszę o wysłanie w dniu dzisiejszym zadania 1,2,3.

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error

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?

What are some properties of transverse waves?