Physics, 28.10.2019 10:31 sophie5988
An astronaut having mass 320 kg with equipment included is attempting an untethered space walk. the astronaut is initially at rest with respect to the nearby spacecraft, but discharges 30.0 g of nitrogen gas at 900.0 m/s from a portable propulsion unit. how fast is the astronaut moving after doing that?
84 m/s
27 m/s
0.36 m/s
0.084 m/s
Answers: 2
Physics, 21.06.2019 22:30
Acricket ball of 70g moving with a velocity of 0.5 m/s is stopped by a player in 0.5s what is the force applied to stop the ball
Answers: 1
Physics, 22.06.2019 18:30
An electron in an x-ray machine is accelerated through a potential difference of 1.00 Ă— 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?
Answers: 2
Physics, 22.06.2019 23:30
Which statement correctly describes the interaction between magnetic poles? north and south poles attract each other. north and south poles repel each other. two north poles will attract each other. two south poles will attract each other.
Answers: 1
Physics, 23.06.2019 02:30
Atrain is traveling at 30.0 m/s relative to the ground in still air. the frequency of the note emitted by the train whistle is 262 hz. the speed of sound in air should be taken as 344 m/s. what frequency (f approach) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and approaching it? what frequency (f recede) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and receding from it?
Answers: 1
An astronaut having mass 320 kg with equipment included is attempting an untethered space walk. the...
Geography, 17.05.2021 08:00
English, 17.05.2021 08:00
Health, 17.05.2021 08:00
Mathematics, 17.05.2021 08:00
Mathematics, 17.05.2021 08:00
Mathematics, 17.05.2021 08:00
Mathematics, 17.05.2021 08:00
Mathematics, 17.05.2021 08:00
History, 17.05.2021 08:00
History, 17.05.2021 08:00