Physics, 02.06.2021 19:30 NewKidnewlessons
What are the speed of recession, in kilometers per second, and redshift of a galaxy that is a distance of 183 megaparsecs (Mpc) away
Answers: 3
Physics, 21.06.2019 20:30
When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m
Answers: 2
Physics, 22.06.2019 21:00
Which of the the following are examples of projectile motion of both projectile motion and two dimensional motion
Answers: 3
Physics, 22.06.2019 23:40
Along wire of diameter 1 mm is submerged in an oil bath of temperature ∞ 31°c. the wire has an electrical resistance per unit length of 0.01 ω/m. if a current of 103 a flows through the wire and the convection coefficient is 500 w/m2·k, what is the steady-state temperature of the wire? from the time the current is applied, how long does it take for the wire to reach a temperature that is within 1°c of the steady-state value? the properties of the wire are 8000 kg/m3, 500 j/kg·k, and 20 w/m·k.
Answers: 3
Physics, 23.06.2019 02:00
Frequency of electromagnetic waves that a radio station is assigned. what do you call this type of wave?
Answers: 2
What are the speed of recession, in kilometers per second, and redshift of a galaxy that is a distan...
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