Physics, 05.12.2019 10:31 20jacksone
Mass = 567.5 g volume = 50.0 cm3 what is the density of lead? 1.135 g/cm3 11.35 g/cm3 113.5 g/cm3 1,135 g/cm3
Answers: 2
Physics, 21.06.2019 18:10
Scientists use laser range-finding to measure the distance to the moon with great accuracy. a brief laser pulse is fired at the moon, then the time interval is measured until the "echo" is seen by a telescope. a laser beam spreads out as it travels because it diffracts through a circular exit as it leaves the laser. in order for the reflected light to be bright enough to detect, the laser spot on the moon must be no more than 1.0 km in diameter. staying within this diameter is accomplished by using a special large-diameter laser. part a if λ = 540nm , what is the minimum diameter of the circular opening from which the laser beam emerges? the earth-moon distance is 384,000 km. express your answer to two significant figures and include the appropriate units.
Answers: 1
Physics, 22.06.2019 03:00
The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f
Answers: 2
Physics, 22.06.2019 08:00
A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
Answers: 2
Physics, 22.06.2019 10:50
Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k
Answers: 1
Mass = 567.5 g volume = 50.0 cm3 what is the density of lead? 1.135 g/cm3 11.35 g/cm3 113.5 g/cm3 1...
Social Studies, 19.07.2019 09:30
Geography, 19.07.2019 09:30
History, 19.07.2019 09:30
Chemistry, 19.07.2019 09:30
Biology, 19.07.2019 09:30
Mathematics, 19.07.2019 09:30
History, 19.07.2019 09:30