Physics, 30.10.2020 18:00 cherishofomah04
A racket ball is struck in such a way that it leaves the racket with a speed of 4.88 m/s in the horizontal direction. When the ball hits the court, it is a horizontal distance of 1.96 m from the racket. Find the height of the racket ball when it left the racket.
Answers: 1
Physics, 22.06.2019 14:30
The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.
Answers: 1
Physics, 22.06.2019 20:30
Atemperature inversion can cause a warm air mass to move over a colder air mass. this traps the colder air mass and prevents surface air from rising. this may result in which of these? a) smog b) acid rain c) freezing rain d) a thunderstorm
Answers: 3
Physics, 22.06.2019 22:50
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
Physics, 23.06.2019 00:00
Why should the wavelength scale of spectroscope be calibrated
Answers: 2
A racket ball is struck in such a way that it leaves the racket with a speed of 4.88 m/s in the hori...
Mathematics, 17.02.2022 19:50
Mathematics, 17.02.2022 19:50
Social Studies, 17.02.2022 19:50
Mathematics, 17.02.2022 19:50
History, 17.02.2022 19:50
Business, 17.02.2022 19:50
Chemistry, 17.02.2022 19:50