Physics, 15.12.2020 16:20 Tahliyah9420
Two persons (each on a skateboard) are initially standing still and facing each other before pushing off of each other. One person (50 kg) moves backwards at 1.1 m/s. Calculate the velocity of the second person (65 kg).
Answers: 1
Physics, 22.06.2019 13:30
The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?
Answers: 1
Physics, 22.06.2019 16:30
Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?
Answers: 2
Physics, 22.06.2019 19:30
Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical
Answers: 2
Physics, 22.06.2019 19:30
Aspacecraft that renters the earthβs atmosphere drastically slows down. the amount of kinetic energy the spacecraft has as it reenters the earths atmosphere
Answers: 2
Two persons (each on a skateboard) are initially standing still and facing each other before pushing...
English, 22.06.2019 12:30
Biology, 22.06.2019 12:30
English, 22.06.2019 12:30
Mathematics, 22.06.2019 12:30
Mathematics, 22.06.2019 12:30
Chemistry, 22.06.2019 12:30
Chemistry, 22.06.2019 12:30
Mathematics, 22.06.2019 12:30